Dissertations / Theses: 'Of Mississippi and East Louisiana'

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Greenwald, Erin Michelle. "Company Towns and Tropical Baptisms: From Lorient to Louisiana on a French Atlantic Circuit." The Ohio State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=osu1306442070.

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McNair, Michael Stephen. "Southern Gothic : antebellum ecclesiology in Alabama, Louisiana, and Mississippi." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/25861.

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The primary focus of the thesis is to examine and explain the architectural, religious, and anthropological occurrences that influenced the implementation of ecclesiology in Alabama, Mississippi, and Louisiana in the period prior to the American Civil War in 1861. Architectural, religious, and cultural developments in the region have been considered within the context of Romanticism, Cotton Capitalism, provincial architectural taste and climatic conditions, socioeconomic placement of the gentry planter class, and the liturgical developments within the Episcopal Church. The Episcopal Church was the only denomination interested in the development of the Gothic Revival and the High Church influences in the largely evangelical region creates a question of purpose. Aside from liturgical requirements, issues of taste and refinement are associated with the Gothic form and are therefore associated with the educated and wealthy Episcopal congregants. This thesis examines the information beyond any existing literature and explains how and why a variation of ecclesiology was implemented in certain Episcopal parishes in the Gulf South. The methodology for creating an argument for antebellum ecclesiology concentrates on primary sources and fieldwork. The first hand accounts of both natives and travellers in the region, the reports from the clergy, and the writings from the Episcopal planter class, all infuse to create a clear understanding of the development of the Gothic Revival and the purpose, both religiously and socially, of the style. The influence of the Oxford Movement and the English ecclesiologists is also considered when evaluating the transatlantic relationship between the American Church and Southern Anglophiles in relation to the Church of England. The theological and humanistic understanding of mankind within the confines of a slave-based economy also influenced the decision of the planter class to gravitate towards the Episcopal Church and establish an architectural presence unique to their social and economic level. Ecclesiology embodied the refinement and social position of the Episcopal Church, creating a visible and psychical manifestation of High Church principles suited for the gentry slaveholding class. By examining the architectural models of the early Episcopal Church in the Gulf South, this data establishes a pattern of the Church supporting the Gothic Revival and, in some circumstances, following the principles of ecclesiology.

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Krupa, Kimberly A. "Coastal Fortresses: A Cross-Case Analysis of Water, Policy, and Tourism Development in Three Gulf Coast Communities." ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2617.

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As a result of development pressures and water resource struggles, once rural, spatially segregated coastal commercial fishing villages along the U.S. portion of the Gulf of Mexico are increasingly tourist frontiers for elites and the emergent businesses that cater to them. Over the course of the twentieth century, water events, from coastal land loss to hurricane destruction to natural disaster, have fast-tracked development projects that have allowed for the expansion of the tourism sector, and relaxed policies to encourage bold new economic development initiatives that often put poor coastal communities and their environment in jeopardy. This outcome is not universal across the northern Gulf Coast, but contingent on a number of local factors overlooked in the literature on coastal tourism and water policy development. This paper investigates the local nuances that have emerged as responses to global and regional development pressures by focusing on the ways in which local values and policy decisions have influenced the spread of coastal urbanization. An intensive analysis will examine the layered effects of changing land-use patterns and tourism growth pressures on three at-risk coastal communities in Louisiana, Mississippi and Florida, in the United States. This paper will test the hypothesis that coastal communities affected by a similar set of development pressures respond to these forces in different ways, depending on complex local and regional variabilities. The paper’s focus is centered on Northern Gulf Coast tourism growth patterns from post-World War II through 2018, and employs a mixed method, multiple-sited case-study design.

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Brasseaux, Shawn. "The Mississippi River-Gulf Outlet and Land Changes in Louisiana Deltaic Plain, Saint Bernard Parish, Louisiana." Thesis, University of Louisiana at Lafayette, 2016. http://pqdtopen.proquest.com/#viewpdf?dispub=10002416.

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Louisiana contains approximately 40 percent of the contiguous United States’ wetlands, and as much as 80 percent of America’s coastal land loss occurs there. This land loss is occurring at an astounding rate—a rate that is accelerating. The Mississippi River-Gulf Outlet (MRGO) is a 120-km- (75-mi-) long canal initially dredged in the 1950s and 1960s and maintained by the United States Army Corps of Engineers. It was intended to connect the Port of New Orleans directly to the Gulf of Mexico and bypass the time-consuming, tortuous route via the Mississippi River and Delta. Intially, environmental groups and citizens greatly opposed the MRGO as a potential ecological disaster. While in operation, the channel doubled and even tripled in width in some areas; it merged with Lake Borgne; it amplified storm surge, especially during Hurricanes Betsy and Katrina; and it caused saltwater intrusion in nearby wetlands and forests. Channel dredging ceased after Hurricane Katrina. In 2009, MRGO maritime traffic ended when a rock closure structure was installed. By comparing series of aerial photographs and satellite images, this study will summarize, highlight, and evaluate the land changes associated with the MRGO, with respect to its inland “Mile Markers.” Additionally, this study compares the roles of human activities versus natural processes in causing land loss in the MRGO area. Aerial photographs and satellite images of the MRGO also were compared and contrasted to see what is presently occurring at the channel concerning the closure structure. Lastly, possible solutions are offered for the mitigation of land loss and/or for creating new land area in the region.

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Maulhardt, Alison. "Restoring the Mississippi River Delta in Louisiana Ecological Tradeoffs and Barriers to Action." ScholarWorks@UNO, 2015. http://scholarworks.uno.edu/td/2098.

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This study investigates the Louisiana 2012 Coastal Master Plan’s ability to reconcile conflicting economic and ecological demands on coastal resources. The Louisiana Coastal Master Plan was unique in combining flood control and coastal restoration under one authority. However, the objectives of flood control and coastal restoration can be in conflict. The plan was also unique in its approach of restoration from a working coast perspective. However, the objectives of ecological restoration and economic productivity do not always agree. By conducting semi-structured interviews with major coastal stakeholders, this research will explore how the planning process has accommodated the views and values of key stakeholder parties. This research aims to make more transparent the inherent environmental tradeoffs of restoration from a working coast perspective. A working coast is a compromise between economic and environmental stakeholder needs. The approach requires a balance of power to ensure that the projects selected best serve the needs of all parties. The study found that while there is industry buy in, mechanisms for mitigating economic externalities is lacking in the plan, corporate infrastructure benefits while wildlife resources are in decline.

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Lenz, Rebecca Marie. "Iron, Arsenic, and Elevated Salinity in the Lower Mississippi River Alluvial Aquifer of Louisiana." Thesis, University of Louisiana at Lafayette, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10615017.

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The Lower Mississippi River Alluvial Aquifer (LMRAA) is a critical groundwater resource for Arkansas, Mississippi, and Louisiana. It is second only to the Ogallala aquifer in terms of the volume of groundwater pumped for irrigation. High concentrations of salinity, iron (Fe), and arsenic (As) affect several regions of the LMRAA. In this study, long-term geochemical changes in the LMRAA in Louisiana were evaluated to better understand the relationships among salts, Fe, and As. The geochemistry was investigated using historical data collected from the LDEQ and USGS. Data from the LDEQ were collected every three years from approximately 2001 to 2013. Major and some trace element data were available, including concentrations of sodium (Na), chlorine (Cl), magnesium (Mg), calcium (Ca), Fe, and As. These historical data were supplemented with recent (2016/2017) sampling and analysis of the isotopes of oxygen (δ¹⁸O) and hydrogen (δ²H). Geochemical results show that groundwater in the LMRAA in Louisiana can be characterized by two main groupings. The first group is generally characterized by a Na/Cl ratio close to one and/or higher salinity, while the second group is generally characterized by excess Na (relative to Cl) and tends to be more alkaline and rich in Fe. The highest salinity regions are spatially limited, and their extents appear to have remained stable over time. Areas of elevated salinity in the northeast part of the study area may be attributable to mixing of deeper salt-rich waters with the shallow groundwater system, while the salt-rich areas in the southern part of the study area are thought to be attributable to dissolution of salt domes. The waters potentially influenced by brines in the northeast are additionally characterized by higher Mg/Ca ratios. These waters are also enriched in δ¹⁸O relative to other areas of the LMRAA. There was no correlation between the areas of potential brine interaction and the concentrations of Fe or As. Instead, areas of high Fe concentration correlated spatially with areas of high alkalinity and the development of waters with excess Na (i.e., waters where Na is in substantial excess relative to the amount of chloride, and instead counterbalanced by HCO_3^-). Arsenic concentrations varied from below detection to 67.7µg/L at one location sampled by the LDEQ in 2010. Six of the approximately 25 wells historically sampled by the LDEQ as part of the ASSET program consistently had concentrations of As >10 µg/L. These locations generally correspond with the groundwater characterized by higher Fe, alkalinity, and Na-excess, but at the same time appear to be localized and often surrounded by wells with low concentrations of As. The concentrations of Fe and As were not correlated. This rather heterogeneous distribution of As contamination could point to anthropogenic influences or sources. The concentrations and spatial distributions of waters rich in salts, Fe, and As in the LMRAA appear to have remained relatively consistent for the last decade, even though demand for groundwater in the LMRAA of Louisiana has more than doubled over this time to 493 million gallons per day (in 2016).

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Bacon-Schulte, Weston Everett. "THE SELECTION FOR SEDENTARY SETTLEMENT PATTERNS IN EAST-CENTRAL MISSISSIPPI." MSSTATE, 2008. http://sun.library.msstate.edu/ETD-db/theses/available/etd-04042008-143512/.

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The evolution of sedentariness in east-central Mississippi seems to follow specific patterns when both time and space are accounted for. Prehistoric pottery counts and frequencies from sites located throughout east-central Mississippi were examined in order to better understand settlement patterns. This study combines data from both newly recorded and previously recorded sites. These data are analyzed using frequency seriation and correspondence analysis, thus allowing the investigation of settlement patterns through both space and time. The results are used to address competing hypotheses concerning a gradual spread of sedentary settlement versus a very rapid adoption of sedentariness. The main factors organizing assemblages from sedentary settlements in this area seem to be distance from a major river and population growth. The data indicate that sedentariness was adopted gradually.

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Harris, Joseph B., T. Andrew Joyner, and Robert V. Rohli. "The Impact of Subsidence on Industrial Complexes in the Lower Mississippi River Industrial Corridor." Digital Commons @ East Tennessee State University, 2018. https://dc.etsu.edu/asrf/2018/schedule/40.

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Spatial interpolation methods were analyzed to determine the best fit for subsidence rates and to create a predictive surface for the lower Mississippi River Industrial corridor (LMRIC). Empirical Bayesian kriging, ordinary kriging, universal kriging, and Inverse Distance Weighted interpolation methods were applied to the 2004 National Oceanic and Atmospheric Administration (NOAA) published Technical Report #50 dataset and cross validation methods were utilized to determine the accuracy of each method. The mean error and root mean square error were calculated for each interpolation method, then used to detect bias and compare the predicted value with the actual observation value. Cross-validation estimates are comparable for each method statistically and visually; however, the results indicate the empirical Bayesian kriging interpolation method is the most accurate of the methods using the lowest root mean square scores. Digital elevation models for the years 2025, 2050, and 2075 were developed based on the predictive surface of subsidence rates using the results from the empirical Bayesian kriging interpolation method. Results indicate that by 2025, 30.9% of landmass in the LMRIC will be below sea level, with 41.9% below sea level by 2050, and 53.5% by 2075. Subsidence rates in the LMRIC range from approximately 28 mm to 2 mm per year. Eighteen of the 153 industrial complexes located in the LMRIC are estimated to be below sea level by the year 2075.

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Taylor, John Wesley. "Hillbillies and sharecroppers : an introduction to East coast and Mississippi blues styles /." Huntington, WV : [Marshall University Libraries], 2002. http://www.marshall.edu/etd/descript.asp?ref=99.

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Thesis (M.A.)--Marshall University, 2002.
Title from document title page. Document formatted into pages; contains v, 23 p. Includes a live performance (duration 1.01.03). Includes bibliographical references (p. 21-23).

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Montgomery, Travis Dale. "Re(orient)ing America : the imagined Middle East in the early works of Edgar Allan Poe /." Full text available from ProQuest UM Digital Dissertations, 2009. http://0-proquest.umi.com.umiss.lib.olemiss.edu/pqdweb?index=0&did=1800249041&SrchMode=1&sid=2&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1269372830&clientId=22256.

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Thesis (Ph.D.)--University of Mississippi, 2009.
Typescript. Vita. "April 2009." Dissertation director: Dr. Benjamin F. Fisher Includes bibliographical references (leaves 188-207). Also available online via ProQuest to authorized users.

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Langley, Kenneth Tyler. "The effect of policy and land use change on water quality in a coastal watershed city an analysis of Covington, Louisiana /." Master's thesis, Mississippi State : Mississippi State University, 2008. http://library.msstate.edu/etd/show.asp?etd=etd-08092008-150443.

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Denapolis, Tasia MV. "Legacy Habitat Suitability of eastern oysters (Crassostrea virginica) in Louisiana: a prelude to Mississippi River Delta freshwater diversions." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/td/2560.

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The Louisiana oyster industry is greatly impacted by freshwater and sediment diversions that are part of the effort to restore the state’s coastline. A habitat suitability index (HSI) proposes species-habitat relationships that can be instrumental in creating impact assessments and suitability predictions for management as new diversions are implemented. An oyster (Crassostrea virginica) HSI was developed using three variables crucial to oyster sustainability: average annual salinity, minimum monthly salinity, and average salinity during the spawning season. These Legacy HSI visualizations show annual fluctuations in the distribution of zones suitable for oyster cultivation prior to proposed diversions in Pontchartrain and Barataria Basins from 1967 to 2016. Modeling suitability based upon these variables can provide crucial information for timing the use of diversions to lessen harmful effects upon the oyster industry as well as indicate new potentially suitable areas that the diversions may create.

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Toudji, Sonia. "Frontières Intimes : Indiens, Français, et Africains dans la Vallée du Mississippi." Phd thesis, Université du Maine, 2011. http://tel.archives-ouvertes.fr/tel-00675452.

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Ma thèse explore les rencontres qui eurent lieu entre Français, Amérindiens et Africains en Louisiane, à l'époque de l'Amérique coloniale. C'est plus précisément sur la partie sud du territoire que ce travail s'est penché. Les bornes chronologiques sont 1686, découverte du territoire par Robert La Salle et 1803, vente du territoire, alors Français, aux Américains par Napoléon en 1803. Mon projet était d'analyser les rapports établis entre ces trois groupes en mettant l'accent sur les relations intimes qui se sont créées entre eux (relations sexuelles, concubinage, mariages mixtes), et les liens de parenté sont également des objets d'étude dans cette recherche. De ces relations intimes émergent diverses communautés : ainsi, les " métis " font référence aux enfants nés de Français et d'Amérindiens alors que les " Griffe " désignent une autre communauté, résultat d'unions entre Africains et Amérindiens. L'étude de ces deux groupes représente une partie de ce travail. Cette thèse s'attache aussi à analyser les conséquences de ces unions sur les rapports sociaux, économiques, et diplomatiques entre ces différents peuples.

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Rich, Susan Lynne. "Marital instability in East Asian societies a comparative study of China, Taiwan, and South Korea /." Diss., Mississippi State : Mississippi State University, 2008. http://library.msstate.edu/etd/show.asp?etd=etd-11062008-163312.

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Torres, Julie A. "Geomorphic and temporal evolution of a Mississippi delta flanking barrier island: Grand Isle, LA." ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2649.

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Optically stimulated luminescence (OSL) dating beach ridge sediments is one method for resolving barrier island growth at intermediate scales (decades-centuries), information that is lacking for Louisiana. This research combines OSL, GPR, aerial imagery, and cores to document temporal and spatial evolution of a Louisiana barrier island. Grand Isle is composed of beach ridges organized in distinct, unconformable sets that began forming 0.75 ka until 0.575 ka when deposition ceased, the ridges were partially eroded, and deposition resumed in a more eastward direction. The central ridges formed between 370±30 and 170±10 years ago at a rate of one ridge every 11.6 years with sand from the eroding Caminada headland that, with flanking barriers, forms the Bayou Lafourche transgressive depositional system. Grand Isle’s lithosome (92,600,000 cubic meters) requires an annual longshore transport of 128,625 cubic meters. The lithosome thickness (10 meters) and steady sediment supply stabilize the island relative to other Louisiana barriers.

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Crawford, Frances R. "Geomorphology of shell ridges and their effect on the stabilization of the Biloxi Marsh, East Louisiana." ScholarWorks@UNO, 2018. https://scholarworks.uno.edu/td/2544.

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Extensive shell ridges frame the edges of marsh platforms in parts of the Biloxi Marsh of southeast Louisiana. The exact sources of the shells in these accumulations have not been clearly identified but the most likely source is a combination of shells from modern offshore and shells excavated from buried St. Bernard delta deposits. Larger or fetch-protected ridges remain stable through time, whereas ridges facing open water are more mobile, moving as much as 38 m inland from July 2017 to January 2018. Behind stable ridges, marsh platform biomass is relatively unaffected. When ridges are mobile, vegetation is smothered, leaving an exposed platform that lacks aboveground vegetation to dampen wave energy and fragments into “blocks” along its terraced edge, which in turn are deposited onshore. In the future, marshes will likely erode fastest in areas where shell ridges are mobile and remain resistant where shell ridges are stable.

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Tagert, Mary Love Mortimer. "Water quality, modeling, and land use investigations in the Upper Pearl River Basin of east-central Mississippi." Diss., Mississippi State : Mississippi State University, 2006. http://sun.library.msstate.edu/ETD-db/ETD-browse/browse.

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Korp, Maureen. "The sacred meaning of East another look at ancient Ameridian burial sites in the Mississippi Valley." Thesis, University of Ottawa (Canada), 1987. http://hdl.handle.net/10393/5092.

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Gallagher, Sarah Louise. "Influence of habitat associations and distance from low-order streams on amphibian and reptile communities on public lands in east-central Mississippi." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-11092007-100145.

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Hogland, John Scott MacKenzie Mark D. "Creating spatial probability distributions for longleaf pine ecosystems across east Mississippi, Alabama, the Panhandle of Florida, and west Georgia." Auburn, Ala., 2005. http://repo.lib.auburn.edu/2005%20Fall/Thesis/HOGLAND_JOHN_19.pdf.

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21

Cope, Rebecca Weatherall. "Assessing the Responses of Adult, Juvenile, and Larval Fish Assemblages to the Closure of the Mississippi River Gulf Outlet, an Artificial Tidal Pass in Southeastern Louisiana." ScholarWorks@UNO, 2013. http://scholarworks.uno.edu/td/1730.

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The creation of the Mississippi River Gulf Outlet (MRGO) in 1963 by the U.S. Army Corps of Engineers (USACE) represents one of the most catastrophic, anthropogenic stressors ever to impact the Lake Pontchartrain estuary in southeastern Louisiana, USA. The artificial tidal pass provided a direct route from the Gulf of Mexico to New Orleans. It allowed for high saline waters to enter Lake Pontchartrain, resulting in detrimental changes to the biotic community of the Lake and surrounding wetland areas. In July 2009, the USACE closed the MRGO in hopes of restoring natural ecosystems. This study assesses changes in the adult, juvenile, and larval fish assemblages in the Lake from data taken before and after the closure. Water quality data were also examined for shifts related to the MRGO closure. Significant decreases in salinity were found following the closure, however no significant differences were found in adult or larval fish assemblages.

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Gelle, Devan. "‘Where Do We Go from Here?’: Discourse in Louisiana Surrounding the Foundation of the State of Israel, May 1948." ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2606.

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A study of ten Louisiana newspapers during May 15-31,1948 revealed a period in which articles varied in their coverage of the Arab-Israeli conflict and wider international relations. Discourse about Arabs and Israelis which became evident in newspapers in later years had emerged but was not fully developed. This coverage revealed a silence about the Holocaust and a subtext about the United Nations.

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Boudreaux, Lon Jr. "The Mississippi River Delta Basin and Why We are Failing to Save its Wetlands." ScholarWorks@UNO, 2007. http://scholarworks.uno.edu/td/564.

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Every thousand years or so, when the Mississippi River's sediment load lengthened and blocked the Riverâ€™s route to the Gulf of Mexico, the mother stream changed course completely, finding a shorter route to the sea. Then, it built a new delta, thus spreading the gift of land creation along a wide coastline and creating the bayou region of Louisiana. However, this ancient, natural process was gradually halted by the arrival of man who settled across the River's natural floodplain (delta) and constructed levees and other structures to control the great Mississippi River. Since the 1930s, the Mississippi River Delta Basin and the coast of Louisiana have been literally losing ground. The decline of this environment is now affecting, and will continue to affect, our nation's economy, infrastructure, culture, and safety. Moreover, efforts to fix this problem are not working. My research and this thesis will address the issue of how plans without action have appeased Louisianans while the nation looses vital wetlands daily.

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Bearb, Nicholas A. "Sedimentology of the Miocene Bigenerina humblei and Amphistegina "B" Sandstones in Hog Bayou Field, Offshore Block East Cameron 1 and Cameron Parish, Louisiana| A Well Log Based Study." Thesis, University of Louisiana at Lafayette, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=1553889.

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The depositional environment of the Bigenerina humblei 1, Bigenerina humblei 6, and Amphistegina “B” 1 sands of the Hog Bayou field in Cameron Parish, Louisiana, was investigated. To complete the investigation, analysis of well log data, along with the preparation of structure, isopach, and fault plane maps, as well as cross sections, were completed for the four sands. Paleontological data and regional literature pertaining to deposition were also utilized.

The conclusions made for this study are based on interpretation of maps generated and the comparison of these maps with maps and models of modern day and ancient depositional environments. All of the three sands studied in the Hog Bayou field are concluded to be those that are representative of varying stages in the development of a deltaic environment. All information gathered and generated for the study area indicates depositional characteristics of distributary mouth bar, distributary channel fill, and channel complex sands. The Hog Bayou field is structurally based on growth faulting that interacts with many of the strata in the field. Growth faulting and its associated rollover anticlines prove to be the primary targets of hydrocarbon accumulations.

The conclusions made from this study can put to use in the interpretation of other analogous middle Miocene depocenters found along the Gulf Coast. The understanding of the depositional environment may ultimately lead to new discoveries in yet to be explored fields.

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Bonnet, Julien. "Distribution et contrôle cristallographique des éléments Ge, Ga et Cd dans les sphalérites des gisements de type Mississippi Valley dans les districts de Central et East Tennessee, USA." Thesis, Université de Lorraine, 2014. http://www.theses.fr/2014LORR0298/document.

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Les gisements de type Mississippi Valley Type (MVT) du centre et de l’est du Tennessee, respectivement MTM (Middle Tennessee Mine) et ETM (East Tennessee Mine), renferment des réserves importantes de zinc sous forme de sphalerite, mais aussi de germanium en substitution du zinc dans la sphalerite. Cependant seuls les gisements du district de MTM contiennent des teneurs économiquement exploitables de germanium. Ces deux districts miniers, observés dans les mêmes formations géologiques et de minéralogies comparables, sont comparés afin de comprendre la distribution du germanium et des autres éléments traces dans les MVT. Les analyses à l’échelle de l’atome par spectroscopie d’absorption X, XANES et EXAFS, ont mis en évidence plusieurs configurations de germanium dans la sphalerite : le germanium peut être en substitution du zinc dans ZnS sous forme 2+ ou 4+, mais il peut aussi être sous forme d’oxyde de germanium en inclusions nanométriques dans la sphalerite. Les analyses à l’échelle du minéral, par microsonde électronique, LA-ICP-MS et spectroscopie Raman, ont mis en évidence deux groupes d’éléments traces : i) le premier composé des éléments Fe et Cd, est préférentiellement incorporé suivant les faces (110) de la sphalerite, ii) le second composé des éléments Cu, Ga et Ge, est préférentiellement incorporé suivant les faces (010) de la sphalerite. Le couplage de la spectroscopie Raman avec l’ablation laser ICP-MS a permis de mettre en évidence un partitionnement des éléments traces entre la forme cubique et hexagonale de ZnS : les éléments Fe et Cd sont plus concentrés dans la forme cubique, alors que les éléments Cu, Ga et Ge sont plus concentrés dans la forme hexagonale de ZnS
Mississippi Valley-type Type deposits (MVT) in central and eastern Tennessee, respectively MTM (Middle Tennessee Mine) and ETM (East Tennessee Mine), contain large reserves of zinc in the form of sphalerite, but also germanium in substitution of zinc in sphalerite. However, only the deposits District MTM contain economic concentrations of germanium. These two mining districts hosted in the same geological formations and with a comparable mineralogy, are compared in order to understand the distribution of germanium and other trace elements in MVT. Analyses at atomic scale by atomic absorption spectroscopy X, XANES and EXAFS, revealed several of germanium configurations in sphalerites: germanium can substituted to zinc in ZnS under 2 + and 4+ form, but it can be under the form of nanoscale inclusions of germanium oxide associated with sphalerite. Analyses at mineral scale by electron microprobe, LA-ICP-MS and Raman spectroscopy showed two groups of trace elements: i) the first group composed by Fe and Cd is preferentially incorporated following (110) faces of sphalerite, ii) the second group composed by Cu, Ga and Ge, is preferably incorporated following (010) faces of sphalerite. The coupling of Raman spectroscopy with laser ablation ICP-MS revealed a partitioning of trace elements between the cubic and hexagonal forms of ZnS: the elements Cd and Fe are more concentrated in the cubic form, while Cu, Ga and Ge are more concentrated in the hexagonal ZnS

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Stripling, Caitlin. "A Hurricane Specific Risk Assessment of the United States' Gulf Coast Counties." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1478090258882176.

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Haws, Catherine Bourg. "Remembering Vietnam War Veterans: Interpreting History Through New Orleans Monuments and Memorials." ScholarWorks@UNO, 2015. http://scholarworks.uno.edu/td/2081.

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ABSTRACT This thesis is concerned with the question of how America’s citizen soldiers are remembered and how their services can be interpreted through monuments and memorials. The paper discusses the concept of memory and the functions of memorialization. It explores whether and how monuments and memorials portray the difficulties, hardships, horror, costs, and consequences of armed combat. The political motivations behind the design, formation and establishment of the edifices are also probed. The paper considers the Vietnam War monuments and memorials erected by Americans and Vietnam expatriates in New Orleans, Louisiana, and examines their illustrative and educational usefulness. Results reflect that although political benefits accrued from the realization of the memorial structures in question, far more important, palliative and meaningful motives brought about their construction. They also demonstrate that, when understood, monuments and memorials can be historically useful.

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Deperne, Marcel. "La Belle Rivière dans l'espace atlantique, 1783-1815 : migrations commerciales francophones entre Pittsburgh (PA) et Henderson (KY)." Thesis, La Rochelle, 2019. http://www.theses.fr/2019LAROF003.

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L’historiographie a souvent négligé la place occupée par les migrants francophones au sein de la jeune république américaine, se bornant à suivre l’itinéraire des exilés politiques les plus célèbres, bannis par la Révolution Française ou la Restauration, ou celui des utopistes rêvant d’instaurer une société nouvelle au Nouveau Monde. Au cœur de la Jeune Amérique confrontée à l’épineux problème de l’esclavage, à l’agonie des empires coloniaux et à la naissance de l’esprit d’entreprise et du capitalisme, ils furent nombreux à tenter la fortune outre atlantique entre 1783 et 1815, établissant dans le corridor créole de puissants liens commerciaux, culturels et religieux entre côte Est, Nouvelle-Orléans, Antilles et espace atlantique. Tel est l’objet de la présente réflexion qui emprunte la voie ouverte par l’histoire atlantique, et propose, en tirant parti de la correspondance et des ressources archivistiques, une écriture novatrice de l’histoire des migrations commerciales francophones entre Pittsburgh et Louisville à l’époque des révolutions atlantiques
Historiography often neglects the part of Francophone migrants in the young American republic, merely following the route of the most famous political exiles banished by the French Revolution and the Restoration, or the Utopians dreaming to establish a new society in the New World. In the Early Republic faced with the thorny problem of slavery, the agony of colonial empires and the birth of entrepreneurship and capitalism, many migrants tried fortune beyond the Atlantic Ocean, between 1783 and 1815, establishing in the “Creole corridor” powerful commercial, cultural and religious ties between east coast, New Orleans, West Indies and Atlantic space. This is the purpose of this discussion that borrows the path opened by the Atlantic history, and proposes, through the study of correspondence and archival resources, an innovative history of francophone business migrations from Pittsburgh to Louisville in the age of the Atlantic Revolutions

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29

"Implications of environmental change for wetland vulnerability and carbon storage in coastal Louisiana." Tulane University, 2018.

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acase@tulane.edu
Natural systems can be altered, over a wide range of time scales, through changes in environmental conditions. In the Mississippi Delta, which has been shaped by changes in sediment deposition and sea level at the land-ocean interface over the Holocene, changes to environmental conditions lead to state changes that can be observed in both modern ecosystems and the depositional record. Alluvial strata (which comprise the bulk of the world’s sedimentary record) can provide insight into past triggers for ecosystem state changes and can be compared to modern monitoring data to paint a fuller picture of system response to environmental change. Given the large potential impact of anthropogenic climate change on natural systems, this combination of modern and paleo-environmental information may improve our ability to predict future conditions. This dissertation explores coastal and delta plain ecosystem responses to environmental change, particularly relative sea-level rise over annual to millennial timescales (Chapters 2 and 3) and rates of carbon storage by organic and clastic deposits in the Mississippi Delta (Chapter 4). Chapter 2 describes the results of an analysis of how subsidence and relative sea-level rise affect modern wetlands in coastal Louisiana. Using 274 rod surface-elevation table – marker horizon records, GPS measurements, and satellite altimetry data from the Gulf of Mexico, this chapter assesses present-day wetland vulnerability given current environmental conditions. Chapter 3 describes an analysis of how changes in past environmental conditions, specifically variable rates of relative sea-level rise, impacted marshes in the Mississippi Delta throughout the Holocene. Using 355 sediment cores, this chapter identifies relative sea-level rise tipping points that lead to marsh collapse and a state shift from marsh to open water. Using 14C dating, foraminiferal assemblage analysis, and stable isotope geochemistry, this chapter also estimates the time necessary for reestablishment of terrestrial conditions after an initial marsh collapse and conversion to open water at one selected location. Together, these results provide a framework for projecting likely marsh response to future increased rates of relative sea-level rise in coastal Louisiana. The combination of these studies provides a more complete picture of modern and future wetland vulnerability in coastal Louisiana and provides unique insights into the limitations of short-term observational studies of marsh conditions for projecting long-term outcomes in response to environmental change. Chapter 4 describes the results of a comparative analysis of carbon storage rates in organic and clastic deposits within the Holocene sedimentary record near Bayou Lafourche in the Mississippi Delta. Using 14C and OSL dating, elemental analysis, and bulk density measurements collected from three sediment cores, this chapter calculates carbon storage rates to determine the relative carbon storage efficiency of these deposits. This chapter provides an important comparison to similar work in deltaic deposits of the Wax Lake Delta. Furthermore, the high rates of carbon storage within the dominantly clastic deposits, which are interpreted as a proxy for planned sediment diversions in the region, provide an estimate for future carbon storage potential by these coastal restoration efforts.
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Krista L. Jankowski

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Kivlan, Anna. "Metropolitan Dystopia: Color Photographs of Mississippi, Tennessee, and Louisiana, 1968-2005." Diss., 2014. http://hdl.handle.net/10161/8649.

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This dissertation examines color photographs made in Mississippi, Louisiana, and Tennessee between 1968 and 2005 and their relation to evolving racial discourse. My discussion revolves around three photographers: William Eggleston, Birney Imes, and William K. Greiner, who make striking color photographs in the U.S. South. I discuss the critical reception of their work and place it within the context of political and cultural attitudes toward the region and issues of race expressed in the media in the 1970s-early 00's. The important role played by Museum of Modern Art [MoMA] curator John Szarkowski was central in shaping discussions about contemporary photography during this period, placing Eggleston as the herald of the color photography explosion. I explore changing attitudes toward artistic and documentary color photography among photographers, critics, and the general public leading into the 1970s, arguing that these attitudes influenced the reception of the often high-intensity color images of Eggleston, Imes, and Greiner, in the decades that followed.

I discuss the critical reception of William Eggleston's 1976 photography exhibition at MoMA. I examine how Imes's color photographs of juke joints and roadhouses in Mississippi utilize the expressive potentials of color film to depict these liminal, public/private spaces as sites of boundary crossing in a racially divided culture. I explore the ways in which William K. Greiner uses color to depict the pre-Hurricane Katrina New Orleans metropolitan area.

My contribution is to show how Eggleston, Imes, and Greiner employed the expressive, visceral potentials of color photography to interpret and navigate the uncertain moral terrain of the U.S South in the era following the passage of the Civil Rights Act and Voting Rights Act.

Dissertation

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Marschall, Lauren LaFitte. "Gated subdivisions in East Baton Rouge Parish, Louisiana." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-12-4756.

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This paper is about the current state of gated subdivisions in East Baton Rouge Parish, Louisiana. It provides a list, map, and relevant census data of the gated subdivisions in each of the three cities in the parish in which they are found—Baton Rouge, Central, and Zachary—and the unincorporated areas of the parish. It also examines comprehensive plan elements that relate to gated subdivisions, and whether actual gated developments adhere to the plan’s principles. It is important to examine gated developments in East Baton Rouge Parish because they have an effect on the social, fiscal, and public health of their inhabitants and the surrounding communities. The population of East Baton Rouge Parish is growing, which means that new housing units will be built in the near future, many in new subdivisions. The characteristics and placement of housing are major components of an area’s quality of life, and the governments in East Baton Rouge Parish have the opportunity and the responsibility to influence future quality of life by carefully and thoroughly considering their residential developments. An understanding of gated neighborhoods in the area will add to citizens’ and governments’ ability to thoroughly consider future residential development. No comprehensive list or map of gated subdivisions exists for any part of the parish. By mapping them now, and providing a “state of the parish” report, interested citizens and planners at all levels of government can track the increase or decrease of gated communities. Showing that there is sometimes a difference between a comprehensive plan’s stated objective and the reality of gated communities may encourage closer scrutiny before future gated developments are approved.
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32

"Groundwater Arsenic Contamination In Shallow Aquifers Of The Mississippi Delta In Southern Louisiana." 2015.

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This dissertation combines field data, laboratory experiments, and mathematic models to (1) predict the probability of groundwater arsenic (As) contamination caused by geogenic sources and processes in shallow aquifers of the Mississippi Delta in southern Louisiana, (2) study the role microbes play in controlling As mobilization from sediments to groundwaters, and (3) simulate As mobilization and transport caused by changing redox conditions and groundwater geochemistry along a flow path within the southeastern Chicot aquifer in southern Louisiana. A model based on surface hydrology, soil properties, geology, and sedimentary deposition environments predicts that the Holocene shallow aquifers in southern Louisiana are at high risk of As contamination. Sediment incubation and pore-water chemistry suggest that microbes play a key role in mobilizing As from sediments by reductive dissolution of As-bearing Fe(III) oxides/oxyhydroxides. Finally, groundwater samples were collected along a 10 km flow path in the southeastern Chicot aquifer to determine groundwater geochemical parameters and to simulate reactive transport of Fe and As species along the studied flow path. The model well captures the general trends of Fe(II) and As(III) concentrations along the studied flow path and the close correspondence between Fe(II) and As(III) of the both measured and model predicted As(III) and Fe(II) concentrations support the hypothesis that microbially mediated reductive dissolution of As-bearing Fe(III) oxides/oxyhydroxides is the primary mechanism causing As mobilization from sediments to the shallow reducing groundwaters of the Mississippi Delta in southern Louisiana.
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NINGFANG YANG

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Ramirez, Michael Towler. "Suspension of bed material over lateral sand bars in the Lower Mississippi River, Southeastern Louisiana." Thesis, 2011. http://hdl.handle.net/2152/ETD-UT-2011-12-4710.

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Understanding specific pathways for sand transport in the lower reaches of large rivers, particularly the Mississippi, is the key to addressing multiple significant geologic problems and for environmental restoration efforts. Field studies were performed in the Mississippi River 75-100 km upstream of the Gulf of Mexico outlet in April 2010 (water discharge: 23,000 m³ s⁻¹), May 2010 (18,500-20,500 m³ s⁻¹), and March 2011 (27,000 m³ s⁻¹) to examine sediment transport phenomena in the river channel. Methods comprised multibeam sonar bathymetric surveys, acoustic Doppler current profiler measurements of current velocity and acoustic backscatter, point-integrated isokinetic suspended sediment sampling, and channel-bed grab sampling. Channel morphology surveys revealed a 30-60 m deep thalweg, alternating between banks every 2-3 km, opposite bedform-covered lateral sand bars. Dune sizes nearest the thalweg ranged from 7 m wavelength and 0.3 m height to over 100 m wavelength and 2.3 m height as a function of water discharge, with decreasing dune sizes towards shallow water. Material comprising the dunes was well-sorted, 125-500 [mu]m sand. Bedload transport rates increased exponentially with water discharge in April 2010 and March 2011 comparable to previous studies in this reach, though rates in May 2011 were well below predicted values for a site (Myrtle Grove) immediately downriver of a sand-mining project. Average water velocities ranged from 1.3 m s⁻¹ in May 2010 to 2 m s⁻¹ in March 2011. Skin-friction shear stress increased with water discharge, but varied over an order of magnitude at all measured discharges. Suspended sand concentration and grain size increased with proximity to the bed during all study periods, and was most pronounced in March 2011. Suspended sand concentrations were greatest over the center of lateral bars, and lowest in the thalweg, indicating that sand transport downstream occurs primarily over lateral sand bars where there is a combination of high shear stress and available bed material. Total bed-material discharge increased exponentially with water discharge. Bedform-induced turbulence may be responsible for the bed material suspension. These results are relevant to coastal restoration efforts by river diversion which seek to distribute sand from the upper water column to deltaic interdistributary wetlands.
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34

Simpson, Simmone. "The Paleoenvironment of the Lower Mississippi River Delta During the Late Holocene." 2014. http://scholarworks.gsu.edu/geosciences_theses/68.

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Palynological, lithological, loss-on-ignition, and X-ray fluorescence spectroscopy data were collected from a modified Livingstone core retrieved from Bay Jimmy, Louisiana. This data indicates a slow, general regression of the marsh due to sea level rise. This trend was punctuated by several catastrophic events including floods from around ca. 600 Yr BP and ca. 360 Yr BP, a fire around ca. 950 Yr BP, and still more flooding caused by the landfall of Hurricane Audrey in AD 1957, and Hurricanes Katrina and Rita in AD 2005. In more recent years (220 Yr BP to present) the marsh appears to have thinned out. This may be due to anthropogenic barriers, which have inhibited the marsh’s natural retreat as witnessed over the past 1200 years recorded by this core.

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35

"The environmental sedimentology and trace metal geochemistry of the upper Barataria Basin and Mississippi River-Gulf Outlet estuaries, Louisiana." Tulane University, 1999.

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Bottom sediments of the Upper Barataria Basin and the Mississippi River-Gulf Outlet estuarine complexes consist predominantly of silty clays and clayey silts derived from the erosion of the St. Bernard lobe of the Mississippi River delta. Montmorillonite dominates the sediment clay mineralogy and reflects the influence of the Mississippi River Basin The acid-leachable concentrations of fourteen trace metals were determined for 284 bottom sediment and 44 core interval samples by plasma emission. The areal metal distribution is controlled predominantly by the bottom sediment texture and mineralogy and is significantly correlated with smaller grain-size sediments, carbon content, and aluminum and iron content. Ba, Cd, Pb, and Zn are the least correlatable and may reflect the greatest anthropogenic influence. Sediments have greater mean metal content than Florida and Texas estuarine sediments, generally due to their finer grain size, lack of CaCO3, and higher clay, iron, and carbon content Concentrations of As, Ba, Cd, Pb, V and Zn, elevated relative to basinwide means, were detected from sediments associated with oil and gas drilling and production, sandblasting, dredging, and stormwater and industrial discharges. Average metal contents were comparable to other Gulf Coast estuaries and below the lowest effect level sediment quality guidelines from compiled biological assessments. Biological effects from metal concentrations comparable to those found would be expected to be rare Elutriate testing designed to simulate sediment disruptions similar to dredging operations or major storm events were performed on the most highly contaminated sediments. Results indicate the release of metals into the water column, but at concentrations below the Louisiana Ambient Water Quality Criteria. Sediments displayed an inherent capacity to remove the released metals from the water column upon return to original conditions Sediment accumulation rates were determined from four cores using 210Pb geochronology. Compaction corrected accumulation rates varied from 0.1 to 0.28 cm/yr and were comparable to observed rates from Louisiana estuaries. Within Lake Salvador core intervals, concentrations of As, Ba, Cr, Cd, Pb, and Zn have increased by 10% to 30% in sediments accumulated within the last 50 years, though little variation was noted from sediments accumulated during the 1800's
acase@tulane.edu

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Noble, Joni Henry. "Perceptions of change : the professional development, life and teaching histories of three K-12 art educators located in north Louisiana and central Mississippi." 2009. http://hdl.handle.net/2152/10581.

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The purpose of this study is to examine self-perceived changes that occur over the course of the careers of three K-12 art educators located in north Louisiana and central Mississippi. Designed as a case study, this research focuses on the perceptions of three art educators with regard to perceived changes in their classrooms over the course of their teaching careers. Art teachers were chosen not only because of the researcher's background in the arts, but also because of the art educator's apparent underrepresentation in the body of academic research. The three art educators who were participants in this study were also chosen because of their many years of service in the field. Each has been teaching for 27 years or more in north Louisiana and central Mississippi. Included is a brief review of the researcher's teaching history and educational background in order to establish positionality, which also lends a degree of validity to the research (Villenas, 1996). In addition, this positionality serves to illuminate the researcher's epistemological perspectives and her personal ways of knowing as an art teacher (Cary, 2006). Each teacher's story was divided into a life history, a teaching history, teaching today, and significant perceived changes. Each story was accomplished through multiple taped interviews, document mining, maintaining a researcher's journal, and member checking. A synopsis was developed of the common themes that coalesce each of the teachers' lived experiences, as well as common significant changes that each has perceived over the course of their careers. Many changes were noted by each of the art teachers. The most noted changes were found in the areas of technology, the students themselves, parental involvement, peers, and the discipline of art. Implications for future research are suggested including: (a) more case studies of other art teachers, including more art teachers in north Louisiana and central Mississippi; (b) further development of the researcher's journal associated with this study; (c) and a study of some former students of each of these educators and the impact that these teachers have had on their lives.
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"From The Ground Up: A Qualitative Analysis Of Gulf Coast Vietnamese Community-based Organizations And Community Rebuilding In Post-disaster Louisiana, Mississippi, And Alabama." Tulane University, 2015.

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While researchers have long recognized the disproportionate impact of natural disasters on racial and ethnic communities, research remains incomplete in examining the plight of Gulf Coast Vietnamese residents after Hurricane Katrina and the Deepwater Horizon oil spill. This study presents a comprehensive, qualitative investigation of three different Vietnamese communities located in New Orleans, Biloxi, and Bayou La Batre and details how residents established and maintained nonprofit community based organizations in a region that previously saw little or no formal mobilization among Vietnamese residents. Existing studies tend to isolate the extent to which variables such as language, culture, social networks, and religious institutions, influence recovery outcomes. In contrast, this study, by drawing upon multiple avenues of data collection, including 54 in-depth interviews, fieldwork, and participant observation, provides an ethnographic analysis of immigrant community building via the unique circumstances of post-crisis community rebuilding. Findings reveal that despite the differences among by the study sites, one overarching theme emerges: new Gulf South Vietnamese organizations struggled to bridge gaps and build relationships as they sought to transition the community of inexperienced, naive, or complacent Vietnamese locals from loose, informal networks to structured organizational forms. This work examines the challenges faced by organizations as they become established and the strategies by which they grow and become sustainable. Suggestions for how ethnic organizations may better serve and perform outreach into Vietnamese enclaves are presented in the form of lessons learned. Ultimately, this study extends the established literature on the Vietnamese experience in the United States and contributes to the overall canon of research regarding Hurricane Katrina and the Deepwater Horizon oil spill.
acase@tulane.edu

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Milliken, Kristy Lynn Tramp. "Holocene sea-level history and the evolution of Sabine Lake and Calcasieu Lake; east Texas and west Louisiana, USA and the glacial retreat history of Maxwell Bay, South Shetland Islands, Antarctica: Implications for ice cap thickness, retreat, and climate change." Thesis, 2008. http://hdl.handle.net/1911/22264.

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The history of relative sea-level rise along the northern Gulf of Mexico must be constrained in order to determine the relative effects of eustatic sea-level rise, subsidence, antecedent topography, and sediment supply variations on fluvial--bay-shoreline sedimentary systems. This study adds important additional sea-level indicators for the past 10 kyrs in addition to compiling the extensive pre-existing data from the literature. The northern Gulf of Mexico data from the modern shoreline is compared western and eastern Gulf of Mexico datasets to determine the relative difference in subsidence rates over the past 4 kyrs. Subsidence differences are negligible. Furthermore, quantification of the antecedent topography provides a means to account for its effects on sedimentary architecture and the evolution of the Sabine and Calcasieu river-bay systems. The record of eustasy potentially indicates 3 to 4 meter-scale rapid rise intervals during the early Holocene. Subsequent to 7.5 ka, the progradation and retrogradation of the sedimentary systems must be attributed to sediment supply variations (climate change). From 7.5 ka to ∼3 ka, the east Texas, west Louisiana climate oscillated between sub-humid to sub-arid to produce greater than modern sediment flux manifested as deltaic deposits in the modern estuaries. Important future applications of this study include comparison to the nature and timing of fluvial-deltaic retreat in other estuaries along the Gulf of Mexico and Atlantic coasts. The South Shetland Islands, off the western side of the Antarctic Peninsula, are separated by glacial troughs carved during glacial maxima. These glacial troughs are currently fjords which contain a glaciomarine sedimentary record. Age constraining the sediments provides a retreat history of the ice cap for the past 15 kyrs including rates and magnitude of retreat for sub-polar glacial systems. Furthermore, the timing of the migration of sub-glacial polar (cold-based) glacial conditions southward is constrained to ∼10kyr. This has important implications for Holocene glacial flow rates and ice shelf stability in the Antarctic Peninsula region.

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Dissertations / Theses on the topic 'Of Mississippi and East Louisiana'

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