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Dissertations / Theses on the topic 'Shell deposits'

Author: Grafiati

Published: 4 June 2021

Last updated: 5 March 2023

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1

Wheadon, C. J. D. (Christopher James Daniel), and n/a. "A systemic approach to understanding prehistoric shell-bearing deposits in New Zealand: a case study from Shag Point, North Otago." University of Otago. Department of Anthropology, 2002. http://adt.otago.ac.nz./public/adt-NZDU20070507.115526.

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This thesis describes a systemic approach to the study of shell remains, using material from the site of Shag Point (J43/11), in North Otago. This approach analyses the relationship between sampling, identification, quantification, and site formation processes. An historical and methodological framework is used to assess the analysis of shell-bearing deposits in New Zealand, and provide innovative solutions to bias. Historical research outlines the common research methods in New Zealand, which are relevant to Shag Point. Methodological research outlines the range of potential research methods

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2

Chandupatla, Udaya B. "Evaluation of power deposited in a homogenous head model for clam-shell type cellular phones." FIU Digital Commons, 2006. http://digitalcommons.fiu.edu/etd/2106.

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The fundamental dosimetric quantity used to measure the level of exposure due to cellular phones is the Specific Absorption Rate (SAR). The compliance of a device to the exposure limit is determined by following the guidelines described in IEEE measurement standards. The compliance assessment process can be quite complicated and time consuming, due to the many different test conditions that have to be considered and the slow speed of the measurement equipment. Depending on the frequency, use configuration of the device and form factor the SAR values can vary significantly from test case to tes

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3

De, Decker RH. "The geological setting of diamondiferous deposits on the inner shelf between the Orange River and Wreck Point, Namaqualand." Master's thesis, University of Cape Town, 1986. http://hdl.handle.net/11427/26236.

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4

Moriarty, Julia M. "Transport and Fate of Sediment on the Waipaoa River Continental Shelf: Implications for the Formation and Reworking of Flood Deposits." W&M ScholarWorks, 2012. https://scholarworks.wm.edu/etd/1539617920.

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As part of a large interdisciplinary study, particulate fluxes in the Waipaoa River sedimentary system in New Zealand have been studied from the terrestrial headlands of the catchment to the oceanic basin over timescales spanning storm events, seasons, and the Holocene. Here, we complement prior efforts by evaluating the formation and reworking of riverine deposits during episodic flood and wave events, and considering their role in accumulation patterns created over longer timescales on the Waipaoa shelf. Using a numerical hydrodynamic and sediment transport model, sediment fluxes and deposit

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5

Rau, Grant. "A geological evaluation of marine diamond placer deposits on the central Namibian inner shelf : a case study of the Hottentot Bay area." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1007554.

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This study focusses on the marine diamond placers within Exclusive Prospecting Licence 1950 and Mining Licence 103a, located northwest of the north-facing Hottentot Bay which is 60 km north of Lüderitz, along the central Namibian coastline. The thesis follows the natural geological evolution of the marine placer deposit from primary source, through alluvial and/or glacial transportation, concentration along the coastline by wave, aeolian and alluvial/sheet-wash processes and finally marine diamond placer preservation. All of these processes are reviewed as they are important in understanding o

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6

Lodewyks, Therisia. "Siesmic Stratigraphy of Upper Pleistocene gravel and holocene mudbelt deposits between wreck point and the kamma river on the western shelf of South Africa." Master's thesis, University of Cape Town, 2010. http://hdl.handle.net/11427/4208.

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This project aims to provide a better understanding of the deposition of Quaternary and Holocene sediments along the west coast of Southern Africa between Wreck Point at approximately 28º50.00′S and the Kamma River at approximately 29º20.00′S, based primarily on seismic stratigraphy. The high resolution airgun seismic survey performed by De Beers Marine during 1998 was interpreted based on seismic stratigraphic principles and the chronology of the seismic profiles was based on correlation to radiocarbon-dated gravity cores from offshore the Holgat River determined by Herbert (2009). Seismic pr

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7

Bohrer, Arndt. "Entwicklung eines internetgestützten Expertensystems zur Prüfung des Anwendungsbereichs urheberrechtlicher Abkommen." Kassel : Kassel Univ. Press, 2003. http://deposit.d-nb.de/cgi-bin/dokserv?idn=97032314X.

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8

Delaine, Maxence. "La composition des thèques d'amibes xénosomiques : utilisation potentielle comme bio-indicateur des dépôts de particules d’origine atmosphérique." Thesis, Besançon, 2016. http://www.theses.fr/2016BESA2017/document.

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Les amibes à thèque, également appelés thécamoebiens, sont des micro-organismes unicellulaires, qui construisent une enveloppe rigide, appelée thèque (Adl et al., 2012). Ces thèques ont des tailles, formes et natures très variées (Ogden & Hedley, 1980). Les récentes études sur la composition des thèques ont conduit à émettre l’hypothèse que les amibes xénosomiques (constituées de particules exogènes), peuvent constituer des bio-indicateurs pertinents de la diversité particulaire de l’environnement minéral, organique et biologique dans lequel elles évoluent.L’objectif principal des recherch

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9

Suarez, Suzette V. "The outer limits of the continental shelf : legal aspects of their establishment /." Berlin [u.a.] : Springer, 2008. http://deposit.d-nb.de/cgi-bin/dokserv?id=3103207&prov=M&dok_var=1&dok_ext=htm.

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10

Мельничук, П. М. "Особливості геологічної будови і перспективи нафтогазоносності нижньокрейдових відкладів північно-західного шельфу Чорного моря". Thesis, Івано-Франківський національний технічний університет нафти і газу, 2005. http://elar.nung.edu.ua/handle/123456789/4064.

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Роботу присвячено вияшіенню особливостей геологічної будови нижньокрейдових відкладів північно-західного шельфу Чорного моря і визначенню перспектив їх нафтогазоносності та пріоритетних напрямків подальших пошуково-розвідувальних робіт. Побудовано структурно-тектонічні карти покрівлі та підошви нижньокрейдових відкладів. Виділено типи літофацій та побудовані карти їх просторового поширення і розвитку порід-колекторів. Проведено районування території поширення нижньокрейдових відкладів за ступенем їх перспективності на підставі критерійних ознак нафтогазоносності та щільності початкових прогноз

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11

Machado, Cruz Alberto. "Integrated geological and geophysical studies applied to understanding the evolution of the Offshore Amazon Basin." Electronic Thesis or Diss., Sorbonne université, 2018. http://www.theses.fr/2018SORUS466.

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Le Bassin de l'Embouchure de l'Amazone (en portugais Bacia da Foz do Amazonas) est situé dans l'extrême nord de la Marge Équatoriale Brésilienne. Ce bassin a attiré l'attention de la communauté scientifique pendant plusieurs décennies en raison de ses processus sédimentaires à grande échelle liés à l'afflux colossal de sédiments fourni par l’Amazone. Cependant, la plupart des investigations menées sur ce bassin étaient limités à sur la partie supérieure de la succession Quaternaire de le Cône d'Amazone et certains travaux pionniers visant des strates plus profondes ne disposaient pas d'un cont

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12

Kenady, Selene L. "Geophysical explorations of archaeological shell matrix sites: evaluating geophysical techniques in determining the boundaries, structure and volume of buried shell deposits." Thesis, 2016. https://researchonline.jcu.edu.au/50093/1/50093-kenady-2016-thesis.pdf.

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Shell middens are a significant component of the Australian coastal archaeological record, however, they are notoriously difficult to research. Shell matrix sites are often large and structurally heterogeneous with complex formation histories. For large stratified shell matrix sites, the majority of the deposits are buried making the design of appropriate and representative sampling regimes challenging, as short of total excavation the population from which the sample was taken will never be fully understood. This study aims to address these sampling issues through the application of geophysic

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13

Nelson, Storr L. "Lower and Middle Devonian carbonate-platform and outer-shelf-basin deposits flanking Railroad Valley, Nevada." Thesis, 1996. http://hdl.handle.net/1957/34319.

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Lower and Middle Devonian strata crop out on the former stable carbonate platform that existed in the Quinn Canyon Range, through the carbonate shelf edge in the Pancake Range, to the carbonate slope and outer-shelf basin in the Reveille Range. The strata of the Reveille Range record a transition from deposition on the carbonate platform in the Lower Devonian, to deposition at the carbonate platform margin, to deposition in the outer-shelf basin in the Middle Devonian. Conodonts collected from the base of the Sevy Dolomite yield a kindlei-Zone age, an indication that the Sevy Dolomite is young

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14

Velozzi, David Micheal. "Sedimentary features of the Yangtze derived mud deposits on the inner shelf of the East China Sea." 2005. http://www.lib.ncsu.edu/theses/available/etd-04132005-164824/unrestricted/etd.pdf.

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15

Weber, S. "Insights into the formation of the Stuart Shelf iron-oxide-copper-gold (uranium) system from magnetotellurics." Thesis, 2010. http://hdl.handle.net/2440/106281.

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This item is only available electronically.<br>The Gawler Craton, South Australia, is host to many economic ore resources. Of which, iron oxide copper-gold deposits, such as Olympic Dam, Carrapateena and Wirrda Well, stand out due to the quality and abundance of their ore resources. Understanding the mechanisms of their formation is vital for defining exploration models for future development. 166 stations of magnetotelluric data at periods between101-104 seconds have been used to produce three, 2D models that provide insight into the electrical conductivity of the sub-surface beneath the Stua

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16

Wen, Sheng-Wen, and 溫盛文. "Structural characterization of ZnO/ZnS core-shell nanostructures deposited at atmospheric pressure using DEZn, N2O and DTBS." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/54299067500361361583.

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碩士<br>國立中興大學<br>物理學系所<br>104<br>In this thesis, ZnO nanowires and radial ZnO/ZnS core-shell nanostructure arrays were deposited at atmospheric pressure in a temperature range of 300 ~ 600 oC with diethylzinc (DEZn), nitrous oxide (N2O) and ditert-butylsulfide (DTBS) precursors serving as sources of Zn, O and S elements in the ZnO nanowires and radial ZnO/ZnS core-shell nanostructures. The physical properties of radial ZnO/ZnS core-shell nanostructures were characterized using θ-2θX-ray diffraction (XRD), high resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SE

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17

Huang, Chun-Chih, and 黃俊智. "Enhancing the Methanol oxidation Activity of Direct Methanol Fuel Cell with Core-Shell Ni-Pt Nanocatalysts Deposited on CNT Electrode." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/g8s9p6.

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18

Wang, Jang-Jung, and 王建中. "Enhancing the Methanol Electrooxidation Activity of Direct Methanol Fuel Cell with Core-Shell Ru-Pt Nanocatalysts Deposited on CNT Electrode." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/71513337705771810462.

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19

Koch, Jennifer Lynn Donoghue Joseph F. "Late Quaternary evolution of the northwest Florida coast and margin development of a conceptual model for identifying and characterizing shelf sediment deposits /." 2006. http://etd.lib.fsu.edu/theses/available/etd-04092006-143206.

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Thesis (Ph. D.)--Florida State University, 2006.<br>Advisor: Joseph Donoghue, Florida State University, College of Arts and Sciences, Dept. of Geological Sciences. Title and description from dissertation home page (viewed Dec. 4, 2006). Document formatted into pages; contains xxi, 292 pages. Includes bibliographical references.

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20

Rocha, Pedro Ferrara Pires da. "Characterization of the sedimentary deposit of the Costa da Caparica inner shelf as a tool to support coastal management." Master's thesis, 2020. http://hdl.handle.net/10400.1/15404.

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Currently 60% of the global population is concentrated in the coastal zone and 75% of the coast is dominated by sandy beaches, thus, the susceptibility of these environments to anthropogenic impact as coastal erosion increases is unquestionable. One common and effective measure for minimizing beach erosion, which has global appeal, is artificial sand nourishment. However, locating a good sediment borrow area especially inland, has become very difficult. Offshore sediments are identified as a good solution. Hence, this study had the objective to do the characterization and definition of sedimen

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21

Kümmerer, Vincent. "Anomalous levels in the southern Portuguese continental shelf sedimentary record: potential evidence of the 1755 CE Lisbon Tsunami." Master's thesis, 2019. http://hdl.handle.net/10400.1/15015.

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At present, knowledge about tsunami event deposits in outer shelf environments with water depths > 60 m is limited, although understanding of the involved processes as tsunami induced erosion of seafloor sediments and induced backwash currents are critical for tsunami hazard assessment. Both, incoming tsunami waves and generated backwash currents can leave signatures in the offshore sedimentary record. Preservation of tsunami imprints seems more likely in offshore deposits as in onshore deposits, which are in contrary more regarded. Thus, a multidisciplinary approach was conducted to detect pr

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22

McManus, Andrew. "Burial diagenesis and Mississippi Valley-type mineralization in the upper Devonian reef complexes of the Lennard Shelf, Canning Basin, Western Australia." Thesis, 1991. http://hdl.handle.net/2440/112775.

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The aim of this study is to approach the problem of the timing of mineralization in MVT deposits in the context of the diagenetic evolution of the Devonian reef complexes of the Lennard Shelf. These carbonates were subject to two important burial diagenetic events, Late Devonian-Early Carboniferous and Permian-Cenozoic. The region of main interest in this thesis is Billiton's Fossil Downs exploration licence in the Fossil Downs and Brooking Springs Station areas.<br>Thesis (M.Sc.) -- University of Adelaide, National Centre for Petroleum Geology and Geophysics, 1992

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