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Journal articles on the topic 'Mississippian Geologic Period'

Author: Grafiati

Published: 26 July 2024

Last updated: 31 July 2025

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1

Woods, Mark T., David R. Russell, and Robert B. Herrmann. "Dispersion of Short Period Rayleigh Waves Within The Ozark Uplift and Illinois Basin." Seismological Research Letters 60, no. 3 (1989): 111–18. http://dx.doi.org/10.1785/gssrl.60.3.111.

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Abstract We use data recorded by four arrays of portable instruments to investigate the propagation of short period (0.2≤T ≤2.0 sec) surface waves within the Ozark Uplift and Illinois Basin. At the regional scale, we construct group velocity dispersion curves for five suites of propagation paths, and invert them for shear velocity structure. The best model in each case consists of a single layer above a halfspace, and we can correlate the model units with geologic formations. The upper layer in the two Ozark Uplift models represents Ordovician and Cambrian carbonate strata, the halfspace corre

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2

Sawin, Robert S., Evan K. Franseen, W. Lynn Watney, Ronald R. West, and Greg A. Ludvigson. "New Stratigraphic Rank for the Carboniferous, Mississippian, and Pennsylvanian in Kansas." Bulletin (Kansas Geological Survey), no. 256 (January 1, 2009): 1–4. https://doi.org/10.17161/kgsbulletin.no.256.20374.

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A new classification for the Carboniferous System/Period is formally adopted by the Kansas Geological Survey (KGS), and Zeller (1968) is modified accordingly. The Carboniferous is the system/period between the Devonian and Permian, and the Mississippian and Pennsylvanian are subsystems/subperiods of the Carboniferous. The Mississippian is subdivided into Lower, Middle, and Upper Mississippian Series and the Pennsylvanian is subdivided into Lower, Middle, and Upper Pennsylvanian Series. Regional stage names remain unchanged.

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3

Hashash, Youssef M. A., Norman A. Abrahamson, Scott M. Olson, Steve Hague, and Byungmin Kim. "Conditional Mean Spectra in Site-Specific Seismic Hazard Evaluation for a Major River Crossing in the Central United States." Earthquake Spectra 31, no. 1 (2015): 47–69. http://dx.doi.org/10.1193/033113eqs085m.

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Current seismic design practice often relies on the use of the uniform hazard response spectrum (UHRS), which implicitly includes motions from multiple earthquake sources and envelops possible spectra, yet does not represent a single event. Seismic hazard analyses at the site of a major Mississippi River crossing near St. Louis, Missouri, showed bimodal seismic hazard dominated by small, nearby earthquakes at short periods and large, distant earthquakes in the New Madrid seismic zone at long periods. UHRS motions resulted in large seismic demands and predictions of pervasive liquefaction that

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4

Vanden Berg, Beth, Christophe Nussbaumer, Amy Noack, et al. "A comparison of the relationship between measured acoustic response and porosity in carbonates across different geologic periods, depositional basins, and with variable mineral composition." Interpretation 6, no. 2 (2018): T245—T256. http://dx.doi.org/10.1190/int-2017-0108.1.

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Recent work has shown that there is a predictable inverse relationship between laboratory-measured sonic velocity response and porosity in carbonates, which can be reasonably approximated using the empirical Wyllie time-average equation (WTA). The relationship was initially identified in late Cretaceous to Cenozoic age samples collected from the Great Bahama Bank and the Maiella Platform, an exhumed Cretaceous carbonate platform in Italy. We have compared older carbonate samples from different basins and different geologic ages to determine the applicability of this relationship and subsequent

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5

Jirásek, Jakub, Lenka Petrušková, and Martin Sivek. "Geotouristic attractions of the Ostrava part of the Upper Silesian Basin: geological and environmental sites." Acta Geoturistica 8, no. 2 (2017): 50–57. http://dx.doi.org/10.1515/agta-2017-0005.

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Abstract In the Ostrava part of the Upper Silesian Basin there are many geotouristic sites connected with the underground mining of Carboniferous bituminous coal. Text is focused on those related to the geology of the Basin and environmental issues connected to coal mining. Of great intrest are outcrops of Mississippian sediments of the paralic Ostrava Formation, as well as two most important museums with permanent geological exhibitions. Some interesting geological features conncted to younger periods of Quarternary glaciation are also mentioned. Two types of publicly accessible sites related

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6

Koehl, Jean-Baptiste P., and Jhon M. Muñoz-Barrera. "From widespread Mississippian to localized Pennsylvanian extension in central Spitsbergen, Svalbard." Solid Earth 9, no. 6 (2018): 1535–58. http://dx.doi.org/10.5194/se-9-1535-2018.

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Abstract. In the Devonian–Carboniferous, a rapid succession of clustered extensional and contractional tectonic events is thought to have affected sedimentary rocks in central Spitsbergen, Svalbard. These events include Caledonian post-orogenic extensional collapse associated with the formation of thick Early–Middle Devonian basins, Late Devonian–Mississippian Ellesmerian contraction, and Early–Middle Pennsylvanian rifting, which resulted in the deposition of thick sedimentary units in Carboniferous basins like the Billefjorden Trough. The clustering of these varied tectonic settings sometimes

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7

Kemp, G. Paul, Elizabeth C. McDade, John W. Day, Robert R. Lane, Nancye H. Dawers, and Jason N. Day. "Recovery and Restoration of Biloxi Marsh in the Mississippi River Delta." Water 13, no. 22 (2021): 3179. http://dx.doi.org/10.3390/w13223179.

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The State of Louisiana is leading an integrated wetland restoration and flood risk reduction program in the Mississippi River Delta. East of New Orleans, Biloxi Marsh, a ~1700 km2 peninsula jutting 60 km north toward the State of Mississippi is one of few Delta wetland tracts well positioned to dissipate hurricane surge and waves threatening the city’s newly rebuilt hurricane flood defenses. Both its location on the eastern margin of the Delta, and its genesis as the geologic core of the shallow water St. Bernard/Terre aux Boeuf sub-delta, which was the primary Mississippi outlet for almost 20

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8

Blum, Mike. "Organization and reorganization of drainage and sediment routing through time: the Mississippi River system." Geological Society, London, Special Publications 488, no. 1 (2019): 15–45. http://dx.doi.org/10.1144/sp488-2018-166.

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AbstractIt has been said that large rivers are the bloodlines of continents, and the Mississippi River system is the most prominent bloodline in North America. The Mississippi drainage stretches from the Rocky Mountains in the western USA to the Appalachian Cordillera in the east, and sediment from this vast area is then routed to the alluvial–deltaic plain of south Louisiana and the basin-floor fan in the deep Gulf of Mexico (GoM). Origins of the Mississippi system can be traced to the Late Cretaceous–Early Paleocene reorganization of North American drainage. However, integration of a contine

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9

O’Sullivan, Jay A. "Population Dynamics of Archaeohippus blackbergi (Mammalia; Equidae) from the Miocene Thomas Farm Fossil Site of Florida." Bulletin of the Florida Museum of Natural History 45, no. 4 (2005): 449–64. http://dx.doi.org/10.58782/flmnh.yixb8525.

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The Thomas Farm fossil site, Gilchrist County, Florida, is the most fossiliferous Hemingfordian terrestrial site east of the Mississippi River. Taphonomy indicates that the formation of the fossil deposit occurred over a period of at most thousands of years, a geologic instant. Thomas Farm contains one of the earliest and numerically largest populations of the small equid Archaeohippus. Although the sample of mandibles is small (MNI=30), I was able to recognize nine age grades for Archaeohippus blackbergi. As the age at which a female Equus gives birth to her first offspring (3-3.5 years) appr

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10

Sáez, Reinaldo, Felipe González, Teodosio Donaire, et al. "Updating Geological Information about the Metallogenesis of the Iberian Pyrite Belt." Minerals 14, no. 9 (2024): 860. http://dx.doi.org/10.3390/min14090860.

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The Iberian Pyrite Belt (IPB) represents one of the largest districts of volcanogenic massive sulfide (VMS) deposits in the world, and is a critical source of base metals (Cu, Pb, and Zn) for Europe. Confirmed resources exceed 1700 Mt of massive sulfides with grades of around 1.2% Cu, 1% Pb, and 3% Zn as well as more than 300 Mt of stockwork-type copper mineralization. Significant resources of Sn, precious metals (Au and Ag), and critical metals (Co, Bi, Sb, In, and Se) have also been evaluated. The genesis of these deposits is related to a complex geological evolution during the late Devonian

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11

Wood, Clinton M., and Ethan R. B. Baker. "Cost Savings of Implementing Site-Specific Ground Motion Response Analysis in the Design of Short-Period Mississippi Embayment Bridges." Earthquake Spectra 34, no. 3 (2018): 1155–75. http://dx.doi.org/10.1193/120517eqs247m.

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Deep dynamic site characterization and a site-specific ground motion response analysis (SSGMRA) were conducted for a bridge site in Monette, Arkansas. The SSGMRA indicated the design acceleration response spectrum determined using the American Association of State Highway and Transportation Officials (AASHTO) general seismic procedure could be reduced by one third for the short-period range due to attenuation of the short-period ground motions. The steel girder pile-bent bridge, originally designed using the AASHTO general seismic design procedure, was redesigned using the updated seismic dema

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12

Mizens, G. A., and S. A. Dub. "Geochemistry of limestones of the Mid-Carboniferous boundary interval in the Southern and Middle Urals." LITHOSPHERE (Russia) 22, no. 3 (2022): 300–326. http://dx.doi.org/10.24930/1681-9004-2022-22-3-300-326.

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Research subject. Limestones of 11 sections of the Mid-Carboniferous boundary interval in the Southern and Middle Urals were studied. Sections of the western slope of the Urals (2 sections) refer to the East European platform, while the eastern Urals carbonate strata (9 sections) are fragments of the carbonate platform formed in the residual basin of the Ural Ocean. Material and methods. The lithological features of limestones of all considered sections were identified, the distribution and main characteristics of 28 trace (rare and scattered) elements, as well as Al and Fe, were studied and a

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13

Courtois, Andrew, Samuel Bentley, Jillian Maloney, et al. "Short-Term Sediment Dispersal on a Large Retreating Coastal River Delta via 234Th and 7Be Sediment Geochronology: The Mississippi River Delta Front." Water 16, no. 3 (2024): 463. http://dx.doi.org/10.3390/w16030463.

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Many Mississippi River Delta studies have shown recent declines in fluvial sediment load from the river and associated land loss. In contrast, recent sedimentary processes on the subaqueous delta are less documented. To help address this knowledge gap, multicores were collected offshore from the three main river outlets at water depths of 25–280 m in June 2017 just after the peak river discharge period, with locations selected based on 2017 U.S. Geological Survey seabed mapping. The coring locations included the undisturbed upper foreset, mudflow lobes, gullies, and the undisturbed prodelta. N

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14

Franseen, Evan K. "Mississippian (Osagean) Shallow-water, Mid-latitude Siliceous Sponge Spicule and Heterozoan Carbonate Facies: An Example from Kansas with Implications for Regional Controls and Distribution of Potential Reservoir Facies." Bulletin (Kansas Geological Survey), no. 252 (January 1, 2002): 1–23. https://doi.org/10.17161/kgsbulletin.no.252.20383.

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Mixtures of biosiliceous and heterozoan-dominated carbonate deposits are commonly interpreted as recording cold-water polar or deep basinal conditions. However, a growing body of literature is documenting examples from the rock record that show these deposits accumulated in shallow-water middle- to low-latitude environments. The continued recognition of ancient neritic heterozoan carbonate and biosiliceous accumulations is broadening our understanding of the various paleoenvironmental controls on their development. Early-Middle Mississippian time was characterized by the development of biosili

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15

Dagg, M. J., T. Bianchi, B. McKee, and R. Powell. "Fates of dissolved and particulate materials from the Mississippi river immediately after discharge into the northern Gulf of Mexico, USA, during a period of low wind stress." Continental Shelf Research 28, no. 12 (2008): 1443–50. http://dx.doi.org/10.1016/j.csr.2006.12.009.

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16

Liang, Xingyu, Bo Li, Chengnan Zhang, Huaikun Qin, Gao Li, and Xinyue Zhang. "Mineralogical and Geochemical Characteristics of Carbonates and Their Geological Significance to the Fuli Pb-Zn Deposit, Yunnan Province." Minerals 12, no. 10 (2022): 1317. http://dx.doi.org/10.3390/min12101317.

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Mississippi Valley-Type (MVT) deposits are among the main types of Pb-Zn deposits that feature carbonate minerals as the main gangue minerals; their formation runs through the entire metallogenic process of MVT deposits. Therefore, carbonate minerals contain rich information on metallogenic fluid evolution and are thus important prospecting indicators. The Fuli Pb-Zn deposit in eastern Yunnan is located in the southeast of the Sichuan-Yunnan-Guizhou (SYG) Pb-Zn metallogenic province, which is the biggest producer of zinc and lead in China and contains more than 400 deposits and over 20 million

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17

Bettenay, Leigh. "Geological and Mining Constraints on Historical Mine Production: The Case of Early Medieval Lead-Silver Mining at Melle, France." METALLA 26, no. 2 (2022): 67–86. http://dx.doi.org/10.46586/metalla.v26.2022.i2.67-86.

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Early Medieval silver production for the Melle Pb-Ag deposit in western France has been estimated up to 15 tonnes per year over hundreds of years (Téreygeol, 2013) which would place it amongst the top silver mines of all times prior to the New World discoveries. However, this deposit has geological and mining characteristics economically unsuitable for substantial production, because it is thin, sub-horizontal and comprised of discontinuous pods. Furthermore, it is a Mississippi Valley type (MVT) base metal deposit, which are typically not major silver producers. There is no geological evidenc

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18

Harris, J. B., R. L. Street, J. D. Kiefer, D. L. Allen, and Z. M. Wang. "Modeling Site Response in the Paducah, Kentucky Area." Earthquake Spectra 10, no. 3 (1994): 519–38. http://dx.doi.org/10.1193/1.1585787.

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Site conditions at 37 locations in Paducah, Kentucky, and the surrounding area were modeled using seismic refraction and reflection data to determine site response to a suite of Canadian strong-motion records and a hypothetical central United States earthquake. The seismic data, integrated with local borehole information, indicated that depths to bedrock range from less than 300 to more than 500 ft. The site-response analysis shows that the study area can be subdivided into three zones and the highest spectral amplifications are associated with thick alluvial and lake-bed deposits. The magnitu

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Hashash, Youssef MA, Okan Ilhan, Halil Uysal, et al. "Application of empirical and simulation-based site amplification models for Central and Eastern North America to selected sites." Earthquake Spectra 37, no. 1_suppl (2021): 1516–33. http://dx.doi.org/10.1177/87552930211020770.

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The Next Generation Attenuation Relationships for Central & Eastern North-America (NGA-East) Geotechnical Working Group (GWG) has presented models for site amplification in Central and Eastern North America that represent a significant change from past practice, which was based on models developed for active tectonic regions. The GWG models are ergodic in their formulation, meaning that they produce an average level of amplification conditional on VS30 and other the site parameters. We illustrate the application of these models to four sites in Texas, South Carolina, Mississippi, and New Y

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20

Ielpi, Alessandro, Martin R. Gibling, Arden R. Bashforth, and Chinemerem I. Dennar. "Impact of Vegetation On Early Pennsylvanian Fluvial Channels: Insight From the Joggins Formation of Atlantic Canada." Journal of Sedimentary Research 85, no. 8 (2015): 999–1018. http://dx.doi.org/10.2110/jsr.2015.50.

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Abstract: Riparian vegetation profoundly influences modern fluvial channels in a variety of ways, depending on the life-history strategies of different plant types, disturbance frequency, and drainage conditions of available habitats. Direct evidence for these dynamic relationships is usually cryptic in ancient deposits. We report evidence for interactions between rivers and in situ vegetation for selected sites in the lower Pennsylvanian Joggins Formation of Atlantic Canada, encompassing fixed, meandering, and distributary channels originally up to 6 m deep. Channel bodies are associated with

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21

Raczynski, Krzysztof, and Jamie Dyer. "Variability of Annual and Monthly Streamflow Droughts over the Southeastern United States." Water 14, no. 23 (2022): 3848. http://dx.doi.org/10.3390/w14233848.

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Understanding the patterns of streamflow drought frequency and intensity is critical in defining potential environmental and societal impacts on processes associated with surface water resources; however, analysis of these processes is often limited to the availability of data. The objective of this study is to quantify the annual and monthly variability of low flow river conditions over the Southeastern United States (US) using National Water Model (NWM) retrospective simulations (v2.1), which provide streamflow estimates at a high spatial density. The data were used to calculate sums of outf

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22

Wang, Jiong, and Toshiro Tanimoto. "Estimating Near-Surface Rigidity from Low-Frequency Noise Using Collocated Pressure and Horizontal Seismic Data." Bulletin of the Seismological Society of America 110, no. 4 (2020): 1960–70. http://dx.doi.org/10.1785/0120200098.

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ABSTRACT We propose a single-station approach to estimate near-surface elastic structure using collocated pressure and seismic instruments. Our main result in this study is near-surface rigidity (shear modulus) structure at 784 EarthScope Transportable Array (TA) stations in operation from mid-2011 to the end of 2018 using coherent horizontal seismic and pressure signals at 0.02 Hz. We isolate time periods for which surface pressure change is the dominant excitation source for seismic signals by searching for data windows with large pressure variations and high-seismic-pressure coherence. We e

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Marchesini, Pierpaolo, Jonathan B. Ajo-Franklin, and Thomas M. Daley. "In situ measurement of velocity-stress sensitivity using crosswell continuous active-source seismic monitoring." GEOPHYSICS 82, no. 5 (2017): D319—D326. http://dx.doi.org/10.1190/geo2017-0106.1.

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The ability to characterize time-varying reservoir properties, such as the state of stress, has fundamental implications in subsurface engineering, relevant to geologic sequestration of [Formula: see text]. Stress variation, here in the form of changes in pore fluid pressure, is one factor known to affect seismic velocity. Induced variations in velocity have been used in seismic studies to determine and monitor changes in the stress state. Previous studies conducted to determine velocity-stress sensitivity at reservoir conditions rely primarily on laboratory measurements of core samples or the

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24

Steeples, Don W. "Structure of the Salina-Forest City interbasin boundary from seismic studies." Bulletin (Kansas Geological Survey), no. 226 (April 16, 2024): 31–52. https://doi.org/10.17161/kgsbulletin.no.226.20493.

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As petroleum-exploration efforts in the midcontinent become directed toward smaller fields and the search for minerals is extended into new areas, the edges of the Salina and Forest City basins will become of increased interest to industry. The principal boundary feature between the two basins is the Nemaha Ridge, a linear feature that extends from near Omaha, Nebraska, to near Oklahoma City, Oklahoma. Recent seismic studies at the Kansas Geological Survey have revealed a complex array of faulted and folded structures in the vicinity of the Humboldt fault zone (the eastern flank of the Nemaha

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25

Manor, Matthew J., Stephen J. Piercey, Corey J. Wall, and Nikola Denisová. "High-Precision CA-ID-TIMS U-Pb Zircon Geochronology of Felsic Rocks in the Finlayson Lake VMS District, Yukon: Linking Paleozoic Basin-Scale Accumulation Rates to the Occurrence of Subseafloor Replacement-Style Mineralization." Economic Geology 117, no. 5 (2022): 1173–201. http://dx.doi.org/10.5382/econgeo.4910.

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Abstract Felsic igneous complexes and associated volcano-sedimentary rocks in continental back-arc environments host large-tonnage and/or high-grade volcanogenic massive sulfide (VMS) deposits. The emplacement mechanisms, style, and preservation of these deposits is thought to be partially dependent on depositional rates of the host lithofacies (i.e., discrete volcanic eruptions) relative to the setting of massive sulfide genesis on the seafloor as mounds and/or via subseafloor replacement of existing strata. The localization and occurrence of subseafloor replacement-style VMS deposits is ther

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26

Amininia, Karim, and Seyed Mahdi Saghebian. "Uncertainty analysis of monthly river flow modeling in consecutive hydrometric stations using integrated data-driven models." Journal of Hydroinformatics 23, no. 4 (2021): 897–913. http://dx.doi.org/10.2166/hydro.2021.142.

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Abstract The ﬂow assessment in a river is of vital interest in hydraulic engineering for ﬂood warning and evacuation measures. To operate water structures more efﬁciently, models that forecast river discharge are desired to be of high precision and certain degree of accuracy. Therefore, in this study, two artificial intelligence models, namely kernel extreme learning machine (KELM) and multivariate adaptive regression splines (MARS), were applied for the monthly river flow (MRF) modeling. For this aim, Mississippi river with three consecutive hydrometric stations was selected as case study. Us

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27

Roushangar, Kiyoumars, Nasrin Aghajani, Roghayeh Ghasempour, and Farhad Alizadeh. "The potential of ensemble WT-EEMD-kernel extreme learning machine techniques for prediction suspended sediment concentration in successive points of a river." Journal of Hydroinformatics 23, no. 3 (2021): 655–70. http://dx.doi.org/10.2166/hydro.2021.146.

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Abstract Sediment transport is one of the most important issues in river engineering. In this study, the capability of the Kernel Extreme Learning Machine (KELM) approach for predicting the river daily Suspended Sediment Concentration (SSC) and Discharge (SSD) was assessed. Three successive hydrometric stations of Mississippi river were considered and based on the sediment and flow characteristics during the period of 2005–2008. Several models were developed and tested for SSC and SSD modeling. For improving the applied model efficiency, two post-processing techniques, namely Wavelet Transform

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28

Yang, Changbing, Katherine Romanak, Susan Hovorka, Robert M. Holt, Jeff Lindner, and Ramon Trevino. "Near-Surface Monitoring of Large-Volume CO2 Injection at Cranfield: Early Field Test of SECARB Phase III." SPE Journal 18, no. 03 (2013): 486–94. http://dx.doi.org/10.2118/163075-pa.

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Summary An early field project of the Southeast Regional Carbon Sequestration Partnership (SECARB) was conducted in Cranfield oil field, western Mississippi. Carbon dioxide (CO2) was injected into coarse-grained fluvial deposits of the Cretaceous lower Tuscaloosa formation, forming a gentle anticline at depths of 3300 m. CO2 injection started in July 2008, increasing to 23 wells (as of May 2011), with total injection rates greater than 1 million tons/yr. Focused monitoring programs of the deep subsurface and near surface have been implemented in different study areas. Here we present results o

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Hraško, Ľubomír, Zoltán Németh, and Patrik Konečný. "Variscan lithotectonic units of the Suchý massif in the Strážovské vrchy Mts., Western Carpathians – products of sedimentary, tectonometamorphic and granite forming processes." Mineralia Slovaca 56, no. 1 (2024): 3–50. http://dx.doi.org/10.56623/ms.2024.54.1.1.

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The present geological investigation of the Pre-Alpine structure of the western part of Strážovské vrchy Mts (the Suchý massif; Western Carpathians) has distinguished three lithologically distinct Variscan lithotectonic units, which originated (1) in the deeper parts of oceanic basin (prevailingly metapelites with different content of organic matter, metabasalts, metacarbonates?); (2) sediments of the continental slope (flyschoid sediments with a predominance of greiwacke sediments; both VmD0); (3) a unit of continent basement primarily of pre-VmD0 granitic composition (orthogneiss). These roc

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Hraško, Ľubomír, Zoltán Németh, and Patrik Konečný. "Variscan lithotectonic units of the Suchý massif in the Strážovské vrchy Mts." Mineralia Slovaca 56, no. 1 (2024): 3–50. https://doi.org/10.56623/ms.2024.56.1.1.

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The present geological investigation of the Pre-Alpine structure of the western part of Strážovské vrchy Mts (the Suchý massif; Western Carpathians) has distinguished three lithologically distinct Variscan lithotectonic units, which originated (1) in the deeper parts of oceanic basin (prevailingly metapelites with different content of organic matter, metabasalts, metacarbonates?); (2) sediments of the continental slope (flyschoid sediments with a predominance of greiwacke sediments; both VmD0); (3) a unit of continent basement primarily of pre-VmD0 granitic composition (orthogneiss). These roc

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Güyagüler, Baris, Roland N. Horne, Leah Rogers, and Jacob J. Rosenzweig. "Optimization of Well Placement in a Gulf of Mexico Waterflooding Project." SPE Reservoir Evaluation & Engineering 5, no. 03 (2002): 229–36. http://dx.doi.org/10.2118/78266-pa.

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Summary In this study, a hybrid optimization technique based on the genetic algorithm (GA), polytope algorithm, kriging algorithm, and neural networks is proposed to optimize a waterflooding project. Hybridization of the GA with these helper methods introduces hill climbing into the stochastic search and makes use of proxies created on the fly. It was observed that the number of simulations required was reduced significantly, as compared to conventional approaches. This reduction in the number of simulations reduced the computation time, enabling the use of full-scale simulation for optimizati

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Gutierrez, Dubert, Archie R. Taylor, Vinodh Kumar, Matthew G. Ursenbach, Robert G. Moore, and Sudarshan A. Mehta. "Recovery Factors in High-Pressure Air Injection Projects Revisited." SPE Reservoir Evaluation & Engineering 11, no. 06 (2008): 1097–106. http://dx.doi.org/10.2118/108429-pa.

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Summary High-pressure air injection (HPAI) is an improved-oil-recovery (IOR) process in which compressed air is injected into a deep light-oil reservoir with the expectation that the oxygen in the injected air will react with a fraction of the reservoir oil at an elevated temperature to produce carbon dioxide. The resulting flue-gas mixture provides the main mobilizing force to the oil downstream of the reaction region, sweeping it to production wells. The combustion zone itself may provide a critical part of the sweep mechanism. In 1994, Fassihi et al. proposed a method for estimating recover

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JPT staff, _. "E&P Notes (October 2022)." Journal of Petroleum Technology 74, no. 10 (2022): 16–20. http://dx.doi.org/10.2118/1022-0016-jpt.

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CNOOC Turns Taps on Bohai Bay Fields Volumes are flowing from two new CNOOC-operated field developments in the Bohai Sea, offshore China. Production began at the Luda 5-2 oil field north phase 1 project in Liaodong Bay. The field is in an average water depth of around 32 m. CNOOC installed one thermal recovery wellhead platform and one production platform, and connected processing facilities serving the Suizhong 36-1 oil field. The company plans to drill a total of 26 production and two water-source wells, with peak crude oil production of 8,200 B/D targeted for 2024. Oil also is flowing at th

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Sawin, Robert S., Evan K. Franseen, W. Lynn Watney, Ronald R. West, and Greg A. Ludvigson. "New Stratigraphic Rank for the Carboniferous, Mississippian, and Pennsylvanian in Kansas." Current Research in Earth Sciences, October 22, 2009, 1–4. http://dx.doi.org/10.17161/cres.v0i256.11846.

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A new classification for the Carboniferous System/Period is formally adopted by the Kansas Geological Survey (KGS), and Zeller (1968) is modified accordingly. The Carboniferous is the system/period between the Devonian and Permian, and the Mississippian and Pennsylvanian are subsystems/subperiods of the Carboniferous. The Mississippian is subdivided into Lower, Middle, and Upper Mississippian Series and the Pennsylvanian is subdivided into Lower, Middle, and Upper Pennsylvanian Series. Regional stage names remain unchanged.

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Sawin, Robert S., Evan K. Franseen, W. Lynn Watney, Ronald R. West, and Greg A. Ludvigson. "New Stratigraphic Rank for the Carboniferous, Mississippian, and Pennsylvanian in Kansas." Current Research in Earth Sciences, October 22, 2009, 1–4. http://dx.doi.org/10.17161/cres.v0i256.11846.

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A new classification for the Carboniferous System/Period is formally adopted by the Kansas Geological Survey (KGS), and Zeller (1968) is modified accordingly. The Carboniferous is the system/period between the Devonian and Permian, and the Mississippian and Pennsylvanian are subsystems/subperiods of the Carboniferous. The Mississippian is subdivided into Lower, Middle, and Upper Mississippian Series and the Pennsylvanian is subdivided into Lower, Middle, and Upper Pennsylvanian Series. Regional stage names remain unchanged.

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Albert, Lois E. "The Norman Site: Descriptions." Index of Texas Archaeology Open Access Grey Literature from the Lone Star State, 2000. http://dx.doi.org/10.21112/.ita.2000.1.19.

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The Norman site (34WG2) lay on a terrace on the west side of the Neosho (Grand) River in Wagoner County, Oklahoma. Throughout much of its course within Oklahoma, this river flows along the western boundary of the Ozark Uplift. East of the river, the limestones, shales, and sandstones deposited during the Upper Mississippian and Pennsylvanian geological periods form the Boston Mountains and the Springfield Plateau. Several of these formations contain knappable cherts, often of good quality. West of the river, the Mississippian and Pennsylvanian deposits thin and dip under the surface to form th

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Ouyang, Ying, Theodor D. Leininger, Sudhanshu S. Panda, Wayne C. Zipperer, and Timothy L. Stroope. "Contributions to groundwater from National Forest lands in the Mississippi Embayment: a century-long simulation." Water Practice and Technology, October 29, 2020. http://dx.doi.org/10.2166/wpt.2020.098.

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Abstract Very little effort has been devoted to analyzing the contributions of National Forests to groundwater resources in the US and around the world. In this study, the US Geological Survey's MERAS (Mississippi Embayment Regional Aquifer Study) model was used in the ModelMuse simulating system to estimate more than a century of subsurface hydrologic processes, groundwater budgets, and spatial-temporal groundwater level distributions in three forests in Mississippi, US. The results showed that groundwater recharge and stream leakage are important for groundwater storage in this region. All t

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Battiau-Queney, Yvonne, Alain Préat, Alain Trentesaux, Philippe Recourt, and Viviane Bout-Roumazeilles. "Late Mississippian limestone sedimentary environment in southern Pembrokeshire (Bullslaughter Bay, Wales): evidence of meteoric diagenesis and hypersaline features." Geological Magazine, September 9, 2020, 1–28. http://dx.doi.org/10.1017/s0016756820000758.

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Abstract Bullslaughter Bay in southern Pembrokeshire, UK, exposes sections of Upper Mississippian limestone strata. In many places, the rock suffered an isovolumetric alteration during a period of sea-level oscillations. We used multiple approaches to study the weathered rocks, combining sedimentological, petrographic and isotopic compositions (δ18O and δ13C values). Two main microfacies are recognized: (i) packstones/grainstones, characteristic of an open marine shallow subtidal/intertidal environment, with a high degree of agitation, slightly elevated salinity and temporary subaerial exposur

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Cramer, Chris H., Roy B. Van Arsdale, David Arellano, et al. "Seismic and Liquefaction Hazard Maps for Five Western Tennessee Counties." Seismological Research Letters, September 22, 2023. http://dx.doi.org/10.1785/0220230036.

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Abstract A five-year seismic and liquefaction hazard mapping project for five western Tennessee counties began in 2017 and supported natural hazard mitigation efforts in Lake, Dyer, Lauderdale, Tipton, and Madison counties. Additional geological, geotechnical, and geophysical information has been gathered in all five counties to improve the base northern Mississippi Embayment hazard maps of Dhar and Cramer (2017). Information gathered includes additional geological and geotechnical subsurface exploration logs, water table level data collection, new measurements of shallow shear-wave velocity (

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Michel, Robert L. "Tritium hydrology of the Mississippi River basin." April 23, 2004. https://doi.org/10.1002/hyp.1403.

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In the early 1960s, the US Geological Survey began routinely analysing river water samples for tritium concentrations at locations within the Mississippi River basin. The sites included the main stem of the Mississippi River (at Luling Ferry, Louisiana), and three of its major tributaries, the Ohio River (at Markland Dam, Kentucky), the upper Missouri River (at Nebraska City, Nebraska) and the Arkansas River (near Van Buren, Arkansas). The measurements cover the period during the peak of the bomb‐produced tritium transient when tritium concentrations in precipitation rose above natural levels

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Dunne, Kieran, Sylvia Dee, Joeri Reinders, Samuel Munoz, and Jeffrey Nittrouer. "Examining the impact of emissions scenario on lower Mississippi River flood hazard projections." Environmental Research Communications, August 26, 2022. http://dx.doi.org/10.1088/2515-7620/ac8d53.

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Abstract The Mississippi River is the largest commercial waterway in North America and one of the most heavily engineered rivers in the world. Future alteration of the river's hydrology by climate change may increase the vulnerability of flood mitigation and navigation infrastructure implemented to constrain 20th century discharge conditions. Here, we evaluate changes in Lower Mississippi River basin hydroclimate and discharge from 1920-2100 C.E. by integrating river gauge observations and climate model ensemble simulations from CESM1.2 under multiple greenhouse gas emissions scenarios. We sho

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Ouyang, Ying, Yongshan Wan, Wei Jin, Theodor D. Leininger, Gary Feng, and Yuguo Han. "Impact of climate change on groundwater resource in a region with a fast depletion rate: the Mississippi Embayment." Journal of Water and Climate Change, March 3, 2021. http://dx.doi.org/10.2166/wcc.2021.326.

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Abstract Mississippi Embayment (ME) is one of the fastest groundwater depletion regions around the world, while the impacts of climate change on groundwater resources in the region are complex and basically unknown. Using the U.S. Geological Survey's Mississippi Embayment Regional Aquifer Study (MERAS) model, such a challenge was addressed through the base, wet, and dry simulation scenarios. Over the 137-year simulation period from 1870 to 2007, the cumulative aquifer storage depletions were 1.70 × 1011, 1.73 × 1011, and 1.67 × 1011 m3, respectively, for the base, dry, and wet scenarios. As co

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Sherman, Simon P., Ryan M. Parish, Youngsang Kwon, Steven Meredith, and David Johnson. "Non‐destructively characterizing sandstones, orthoquartzites, agates, and petrified wood for provenance research: Perspectives from the Southeastern Coastal Plain, United States." Geoarchaeology, July 23, 2024. http://dx.doi.org/10.1002/gea.22018.

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AbstractSiliceous sandstone (including quartzites), petrified wood, and agates located in Alabama and Mississippi were utilized as a toolstone resource during every recognized cultural period in the Lower Mississippi Valley region of the Southeastern United States. Regrettably, these materials have not been the focus of many provenance‐related investigations. Recent analyses of quartzite and sandstone from other regions in North America and from the Pyrenees were successful in discriminating sources using petrographic techniques. The current study examines the application of visible/near‐infra

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Neubeck, Nikki, Andrew Carter, Tammy Rittenour, and Peter D. Clift. "Climate and anthropogenic impacts on North American erosion and sediment transport since the Last Glacial Maximum: Evidence from the detrital zircon record of the Lower Mississippi Valley, USA." GSA Bulletin, February 7, 2023. http://dx.doi.org/10.1130/b36565.1.

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The Mississippi River provides an opportunity to examine models of sediment transport in large alluviated floodplain systems. We test the idea that sources of sandy sediment in such settings are invariable on timescales &lt;104 y because of storage and recycling in the floodplains. To reconstruct the development of the Mississippi sediment load over the past 2500 years we collected sediment from an abandoned point bar complex nearby at False River, Louisiana, USA. We also took annual samples from the lower reaches between 2015 and 2021 to assess changes on that timescale. Optically stimula

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Hashim, Noor Baharim, Adnan Shindala, and Victor L. Zitta. "Predicting Elevations.of Water Surface in A Tidal Water System." Malaysian Journal of Civil Engineering 11, no. 1 (2018). https://doi.org/10.11113/mjce.v11.15618.

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In predicting the tidal elevations in the Back Bay of Biloxi in Mississippi, the WaterQuality Analysis Simulation-S (WASP5) hydrodynamics model DYNHYD5 wasutilized. Model calibration of the tidal elevations was initially accomplishedutilizing historical data collected by the U.S. Geological Survey (USGS) during theperiod June 14-16, 1977 along with a second set of data collected by the U. S.Environmental Protection Agency (USEPA) during the period July 28-August 2,1972. Final model calibration was performed utilizing a set of field data acquiredon the Back Bay of Biloxi, during September 12-21

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Koperna, G., D. Riestenberg, J. Leierzapf, B. Roth, R. Esposito, and K. Sams Gray. "Building an EPA Class VI Permit Application." SPE Reservoir Evaluation & Engineering, April 1, 2023, 1–16. http://dx.doi.org/10.2118/210198-pa.

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Summary To accelerate the commercialization of carbon capture and storage (CCS), the US Department of Energy (US DOE) is building on decades of characterization efforts and pilot-scale projects through their CarbonSAFE program. Administered through their National Energy Technology Laboratory, this program seeks to bring fully integrated projects to the sector that can store more than 50 million tonnes of CO2 over a 30-year period. The program, which was enacted before the enhancement of Internal Revenue Code Section 45Q, is in the capture assessment, characterization, and permitting phase. The

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del Strother, Peter, Andrew Giże, Cathy Hollis, and Duncan McLean. "Bituminous coals on emergent surfaces in an Asbian, lower Carboniferous (Mississippian) limestone succession on the North Wales carbonate platform, UK, and implications for palaeoclimate." Proceedings of the Yorkshire Geological Society, July 14, 2021, pygs2020–006. http://dx.doi.org/10.1144/pygs2020-006.

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Emergent surfaces in the Mississippian (Asbian to Brigantian) carbonate platform succession of North Wales record periods of plant colonisation and peat formation that led ultimately to the local development of coals. Examination of bituminous coals on three emergent surfaces within Cefn Mawr Quarry reveals information on palaeoclimate that is not available from study of the limestones alone. Three coal seams in the Asbian Loggerheads Limestone Formation were identified and the lowest one studied in detail. Vitrinite reflectance data from alternating bands of vitrite and duroclarite microlitho

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Angiolini, Lucia, Gabriela A. Cisterna, Bernard Mottequin, Shu-Zhong Shen, and Giovanni Muttoni. "Global Carboniferous brachiopod biostratigraphy." Geological Society, London, Special Publications, April 9, 2021, SP512–2020–225. http://dx.doi.org/10.1144/sp512-2020-225.

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AbstractWe present an updated look at the Carboniferous brachiopod biozonation from most of the world framed into a revised Carboniferous palaeogeography, based on a selection of the literature published on Carboniferous brachiopods since the Nineteenth century. The biostratigraphic significance of the most important brachiopod taxa is synthetized in seven geographic correlations.The Mississippian is characterized by rich brachiopod faunas, with widespread taxa with a good potential for global correlation, such as Rugosochonetes, Delepinea, Buxtonia, Antiquatonia, Spinocarinifera, Marginatia,

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Franseen, Evan K. "Mississippian (Osagean) Shallow-Water, Mid-Latitude Siliceous Sponge Spicule and Heterozoan Carbonate Facies." Current Research in Earth Sciences, July 10, 2006, 1–23. http://dx.doi.org/10.17161/cres.v0i252.11790.

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Mixtures of biosiliceous and heterozoan-dominated carbonate deposits are commonly interpreted as recording cold-water polar or deep basinal conditions. However, a growing body of literature is documenting examples from the rock record that show these deposits accumulated in shallow-water middle- to low-latitude environments. The continued recognition of ancient neritic heterozoan carbonate and biosiliceous accumulations is broadening our understanding of the various paleoenvironmental controls on their development. Early-Middle Mississippian time was characterized by the development of b

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Franseen, Evan K. "Mississippian (Osagean) Shallow-Water, Mid-Latitude Siliceous Sponge Spicule and Heterozoan Carbonate Facies." Current Research in Earth Sciences, July 10, 2006, 1–23. http://dx.doi.org/10.17161/cres.v0i252.11790.

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Mixtures of biosiliceous and heterozoan-dominated carbonate deposits are commonly interpreted as recording cold-water polar or deep basinal conditions. However, a growing body of literature is documenting examples from the rock record that show these deposits accumulated in shallow-water middle- to low-latitude environments. The continued recognition of ancient neritic heterozoan carbonate and biosiliceous accumulations is broadening our understanding of the various paleoenvironmental controls on their development. Early-Middle Mississippian time was characterized by the development of b

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