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Dissertations / Theses on the topic 'Geology, Stratigraphic Cambrian'

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Published: 4 June 2021

Last updated: 31 July 2024

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1

Dilliard, Kelly Ann. "Sequence stratigraphy and chemostratigraphy of the Lower Cambrian Sekwi Formation, Northwest Territories, Canada." Online access for everyone, 2006. http://www.dissertations.wsu.edu/Dissertations/Spring2006/K%5FDilliard%5F042406.pdf.

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2

Baghiyan-Yazd, Mohammad Hassan. "Palaeoichnology of the terminal Proterozoic-Early Cambrian transition in central Australia : interregional correlation and palaeoecology." Title page, table of contents and abstract only, 1998. http://web4.library.adelaide.edu.au/theses/09PH/09phb1445.pdf.

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3

Osleger, David Allen. "Cyclostratigraphy of Late Cambrian cyclic carbonates : an interbasinal field and modelling study, U.S.A. /." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-03262008-175224/.

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4

Malhame, Pierre. "Quartz arenites of the uppermost Cambrian-lowermost Ordovician Kamouraska Formation, Québec, Canada : gravity flow deposits of eolian sand in the deep sea." Thesis, McGill University, 2007. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=101868.

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The uppermost Cambrian-Lower Ordovician Kamouraska Formation in the external Humber Zone of the Quebec Appalachians consists of dominant thick massive to graded quartz arenite beds, subordinate pebble conglomerate and intercalated thin shale and siltstone beds. It was deposited by hyperconcentrated to concentrated density flows in a meandering submarine canyon on the continental slope bordering the Iapetus Ocean. Turbidity currents deposited beds with turbidite structure divisions. The sandstones consist of well sorted, well rounded quartz sand with frosted grains. Scanning electron microscopy

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5

Sundberg, Frederick Allen. "Morphological diversification of the ptychopariid trilobites in the Marjumiid biomere (Middle to Upper Cambrian)." Diss., This resource online, 1990. http://scholar.lib.vt.edu/theses/available/etd-07102007-142511/.

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6

Eagan, Keith E. "Paleoenvironmental and Stratigraphic Interpretation of the Middle Cambrian Ute Formation, Northern Utah." DigitalCommons@USU, 1996. https://digitalcommons.usu.edu/etd/6791.

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The Middle Cambrian Ute Formation includes some 200 m of cyclically alternating carbonates and mud rocks. These are arranged in eight to nine, meter-scale, shallowing-upwards packages, representing deposition under predominantly subtidal conditions. The packages consist of vertical sequences of shale, silty limestone, oncolitic packstone, and oolitic grainstone that exhibit little variance in this general pattern. Small-scale unconformities separate the packages. The inferred depositional environment consists of an intrashelf basin that has a peritidal platform near its margins. The craton, wh

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7

Singh, Updesh. "Late Precambrian and Cambrian carbonates of the Adelaidean in the Flinders Ranges, South Australia : a petrographic, electron microprobe and stable isotope study /." Title page, abstract and contents only, 1986. http://web4.library.adelaide.edu.au/theses/09PH/09phs1792.pdf.

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8

Tremblay, James Vincent. "Trilobites and strata of the Lower and Middle Cambrian Peyto, Mount Whyte and Naiset Formations, Alberta and British Columbia /." *McMaster only, 1996.

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9

Simpson, Edward L. "Sedimentology and tectonic implications of the Late Proterozoic to Early Cambrian Chilhowee Group in southern and central Virginia." Diss., Virginia Polytechnic Institute and State University, 1987. http://hdl.handle.net/10919/53660.

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Few detailed facies analyses of rift to passive-margin transitions have been undertaken in exhumed orogenic belts. In the central Appalachians, the Chilhowee Group records such an evolution. The Unicoi and basal Hampton Formations record the transition from rifting to opening of the Iapetus Ocean. The majority of the Hampton Formation and the overlying Erwin Formation represent an overall regressive sequence punctuated by five progradational packages that accumulated along a passive margin. The rift to passive·margin phases of sedimentation in the central Appalachians reflect a continuum from

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10

Maguire, Henry C. "Application Of Geophysical And Geochronological Methods To Sedimentologic And Stratigraphic Problems In The Lower Cambrian Monkton Formation: Northwestern Vermont." ScholarWorks @ UVM, 2018. https://scholarworks.uvm.edu/graddis/938.

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The Monkton Formation of the western shelf stratigraphic sequence in Vermont (VT) is identified as a Lower Cambrian regressive sandstone unit containing parasequences recording tidal flat progradation. Previous workers identified cycles believed to represent parasequences in a portion of a 1034' deep geothermal well drilled at Champlain College in Burlington, Vermont. For this study, both outcrop and well geophysical surveys were completed to better identify gamma emission curves and relative values for parasequences and select lithologies that are indicators of bathymetry and sea level. After

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11

Dunster, John N. "Sedimentology of the Ouldburra Formation (Early Cambrian), northeastern Officer Basin." Title page, contents and abstract only, 1987. http://web4.library.adelaide.edu.au/theses/09SM/09smd926.pdf.

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12

Tawadros, Ezzat Edward. "Stratigraphy, sedimentology and petrology of the Cambrian rocks in the subsurface of Southern Alberta, Canada." Thesis, University of St Andrews, 1988. http://hdl.handle.net/10023/11694.

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The Cambrian section in the subsurface of southern Alberta has a maximum thickness of 1860'. It is composed of sandstones, shales, limestones, and dolomites. The grand cycles characteristic of the Cambrian Sections in the Foothills and Front Ranges can be traced to some distance in the subsurface. However, the section changes facies eastwards into clastics and the grand cycles become less defined. The present correlations indicate that the Waterfowl-Arctomys grand cycle extends to the subsurface but is restricted to the northwest corner of the study area. Two new stratigraphic units have been

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13

Gill, Benjamin Charles. "High-resolution sulfur isotope records of the Paleozoic and a detailed geochemical study of the late Cambrian SPICE event utilizing sulfur isotope stratigraphy, metal chemistry and numerial modeling." Diss., UC access only, 2009. http://proquest.umi.com/pqdweb?index=78&did=1871861801&SrchMode=1&sid=1&Fmt=7&retrieveGroup=0&VType=PQD&VInst=PROD&RQT=309&VName=PQD&TS=1270232379&clientId=48051.

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14

Nicholas, Christopher John. "Strontium isotope stratigraphy in the Cambrian system." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321030.

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15

Stewart, William Douglas. "Stratigraphy and sedimentology of the Chancellor succession (Middle and Upper Cambrian) southeastern Canadian Rocky Mountains." Thesis, University of Ottawa (Canada), 1991. http://hdl.handle.net/10393/7628.

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The Chancellor succession accumulated in a deep-water trough bordering a wide, epeiric shelf during Middle and Late Cambrian time. The Chancellor is divisible into seven major lithostratigraphic units, which are correlative with an eastern shelf assemblage comprising eight cabonate and siliciclastic formations. The deep-water carbonate and siliciclastic sediments in the Chancellor are divisible into five basic lithofacies, each of which has several variants due to a variety of depositional and diagenetic factors. Sediments in the argillite lithofacies were deposited by dilute, muddy and silty

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16

Lyon, Eva. "The Interrelationship Between the Bio- and Sequence Stratigraphy of the Middle Cambrian Spence Shale of Northern Utah and Southern Idaho." DigitalCommons@USU, 2011. https://digitalcommons.usu.edu/etd/1117.

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The Middle Cambrian Spence Shale Member of the Langston Formation of northern Utah and southern Idaho is a fossil-rich unit that exhibits distinct cyclicity at the parasequence (meter) scale. At least seven discrete, shallowing-upwards parasequences, or cycles, can be found at the Miners Hollow and Antimony Canyon localities, each composed of calcareous shale capped by limestone. Within each cycle and within the member as a whole, predictable patterns of faunal distribution are evident. Sampling and identification of fossils from two localities have revealed that observed changes in fauna trac

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17

Jensen, Christopher Ryan. "Sequence Stratigraphy, Depositional Environments and Geochemistry of the middle Cambrian Bloomington Formation in Northern Utah." DigitalCommons@USU, 2015. https://digitalcommons.usu.edu/etd/4231.

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The Bloomington Formation (~425 m thick) is a latest Middle Cambrian (~506.5-505 Ma), mixed, warm water, continental-shelf carbonate and fine-grained siliciclastic unit on the Cordilleran passive margin exposed in northern Utah and southern Idaho. Thicknesses of the Bloomington Formation at Calls Fort Canyon are 111 m in the Hodges Shale Member, 230 m in the middle limestone Member, and 84 m in the Calls Fort Shale Member. The Hodges Shale and Calls Fort Shale Members are shale dominated and represent outer detrital belt deposition. The Logan Canyon outcrop of the Hodges Shale Member shows an

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18

Schneider, Loren P. "The Sequence Stratigraphy of the Middle Cambrian Wheeler Formation in the Drum Mountains of West Central Utah." DigitalCommons@USU, 2000. http://digitalcommons.usu.edu/etd/6786.

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The majority of the Middle Cambrian Wheeler Formation in the Drum Mountains was deposited during a single 3rd order sequence. Superimposed onto this sequence are three indistinct 4th order cycles and twenty distinct 5th order cycles. These higher other cycles were likely deposited within short intervals of geologic time (204 to 405 ky). The lower sequence boundary zone occurs within the Swasey Formation. The Transgressive Surface is the contact between the Swaset and Wheeler Formations. The Maximum Flooding Surface is located near the top of the lower Wheeler Formation, which also approximates

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19

Langenburg, Elizabeth S. "The Middle Cambrian Wheeler Formation: Sequence Stratigraphy and Geochemistry Across a Ramp-to-Basin Transition." DigitalCommons@USU, 2003. https://digitalcommons.usu.edu/etd/4275.

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The Middle Cambrian Wheeler Formation is interpreted as having been deposited in the shallow ramp and deeper basin environments of the House Range embayment (HRE), presumably, during a single third-order sequence. In the Drum Mountains, the Wheeler Formation (295 m thick) is dominated by proximal and distal ramp deposits; at Ma~um Pass, the Wheeler Formation (190m thick) is dominated by basinal shale deposits. The Wheeler Formation contains only one biozone marker; the first appearance of Ptyhagnostus atavus. Lack of other chronostratigraphic markers and distinctive stratal patterns in the bas

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20

Wright, Scott H. "Sequence Stratigraphy and Paleoecology of the Middle Cambrian Spence Shale Member of the Langston Formation of Northeastern Utah and Southeastern Idaho." DigitalCommons@USU, 1999. https://digitalcommons.usu.edu/etd/6542.

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The Middle Cambrian Spence Shale Member contains meter-scale, shallowing-up cycles (parasequences) and record approximately 360 ky of deposition. These meter-scale cycles are nested within transgressive systems tracts (TST) and highstand systems tracts (HST) which reflect different stages of a lower-order, higher-magnitude sea-level excursion. Fossil assemblages are located in stratigraphic positions within the Spence Shale Member that can be predicted on the basis of sequence architecture. The cycle architecture, taphonomy, and geochemistry of the Spence parasequences confirm synthetic sectio

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21

Makhlouf, Issa Mohamed. "The stratigraphy and sedimentation of Upper Cambrian, Permo- Triassic and Lower Triassic rocks along the North Eastern margin of the Dead Sea basin, Jordan." Thesis, University of Newcastle Upon Tyne, 1987. http://hdl.handle.net/10443/552.

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A thick sequence of predominantly terrigenous clastic sediments ranging from Cambrian to Cretaceous in age is exposed along-the northeastern margin of the Dead Sea, Jordan. The present study is confined to rocks of Upper Cambrian, Permo - Triassic (Um Irna Formation)-and Lower Triassic (Ma'in Formation) age, -which attain a total thickness of about 150 m. The lithology, stratigraphy, sedimentary structures, lithofacies and depositional environments of these sediments have been studied in detail. Early After deposition of the'Middle Cambrian marine Burj Formation, a major regressive event occur

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22

Smith, Douglas D. "Sequence Stratigraphy of the Middle Cambrian Marjum Formation: Response of Sedimentary Facies and Biota to Sea-level Changes." DigitalCommons@USU, 2007. https://digitalcommons.usu.edu/etd/6744.

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Research on the Marjum Formation provides insight into facies transitions in the House Range embayment of southwestern Utah during the Middle Cambrian. Sections of the Marjum Formation and equivalents were measured in strata representing shallow- (Drum Mountains), intermediate- (Wheeler Amphitheater), and deep-ramp (Marjum Pass) environments. This traverse across the embayment reveals strong litho- and biofacies changes. The Drum Mountains strata (343 m thick) are dominated by thickbedded shallow-water limestone facies containing polymerid trilobites and stromatolites. The Wheeler Amphitheater

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23

Laneville, Michael Warren. "Subsurface Depositional Systems Analysis of the Cambrian Eau Claire Formation in Western Ohio." Bowling Green State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu154220482332536.

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24

Fielder, Gordon W. "Lateral and vertical variation of depositional facies in the Cambrian Galesville Sandstone, Wisconsin Dells." 1985. http://catalog.hathitrust.org/api/volumes/oclc/12327897.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1985.<br>Thirteen folded leaves of illustrative matter are in pocket. Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 154-168).

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25

Botsford, Jack W. "Depositional history of middle Cambrian to lower Ordovician deep water sediments, Bay of Islands, western Newfoundland /." 1987. http://collections.mun.ca/u?/theses,94181.

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26

Wilbur, Bryan Charles. "A revision of helicoplacoids and other early Cambrian echinoderms of North America." Thesis, 2005. http://www.lib.utexas.edu/etd/d/2005/wilburb11838/wilburb11838.pdf#page=3.

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27

Pyle, Leanne. "Stratigraphy, conodont taxonomy and biostratigraphy of Upper Cambrian to Lower Silurian platform to basin facies, northern British Columbia." Thesis, 2000. https://dspace.library.uvic.ca//handle/1828/9100.

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This study establishes the stratigraphic framework and conodont biostratigraphy of Lower Paleozoic strata of the Northern Canadian Cordilleran Miogeocline, which document a non-passive tectonic evolution of the rifted margin of Laurentia. Only a few reconnaissance stratigraphic studies have been conducted previously in the study area. Nine key sections span an east-west transect from the Macdonald Platform to the Kechika Trough (platform-miogeocline-basin) and 3 key sections comprise a transect across the parautochthonous Cassiar Terrane. Over 12 000 m of strata from the Kechika and Skok

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28

Blanco, Gaucher Gonzalo Homero. "Provenance analysis of the Neoproterozoic-Cambrian Nama Group (Namibia) and the Arroyo del Soldado Group (Uruguay) : implications for the palaeogeographic reconstruction of SW Gondwana." Thesis, 2012. http://hdl.handle.net/10210/7257.

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D.Phil.<br>The amalgamation of SW Gondwana after the break-up of Rodinia supercontinent during the Neoproterozoic-early Palaeozic was one of the most active tectonic periods of the earth history and its geological evolution remains controversial. Recently, diverse hypotheses such as mantle plume activity, orthogonal continent-continent and strike-slip collisions according to different models try to explain the complex evolution of the Pan-African Brasiliano orogens and the associated sedimentary basins. In order to get insight of the SW Gondwana reconstruction, provenance analyses were perform

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29

White, MJ. "Stratigraphy, volcanology and sedimentology of the Cambrian Tyndall Group, Mount Read volcanics, western Tasmania." Thesis, 1997. https://eprints.utas.edu.au/21968/7/whole_White_thesis_ex_pub_mat.pdf.

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The Tyndall Group is a Cambrian, dominantly submarine, volcano-sedimentary succession that occurs in the upper part of the Mount Read Volcanics, western Tasmania. The Tyndall Group comprises a relatively complex assemblage of lithofacies including crystal- and lithic-rich volcaniclastic breccia, conglomerate and sandstone, welded ignimbrite, rhyolite lava and/or intrusions, laminated mudstone and carbonate. Problems with the previously defined stratigraphic nomenclature have prompted development of a new stratigraphic scheme, based on detailed mapping and facies analysis of major Tyndall Group

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30

Myrow, Paul Michael. "Sedimentology and depositional history of the Chapel Island Formation (late Precambrian to early Cambrian) southeast Newfoundland /." 1987. http://collections.mun.ca/u?/theses,97100.

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31

Baghiyan-Yazd, Mohammad Hassan. "Palaeoichnology of the terminal Proterozoic-Early Cambrian transition in central Australia : interregional correlation and palaeoecology / Mohammad Hassan Baghiyan-Yazd." Thesis, 1998. http://hdl.handle.net/2440/21668.

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32

Zaw, Khin. "The effect of Devonian metamorphism and metasomatism on the mineralogy and geochemistry of the Cambrian VMS deposits in the Rosebery-Hercules district, Western Tasmania." Thesis, 1991. https://eprints.utas.edu.au/21917/1/whole_ZawKhin1992_thesis.pdf.

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The Rosebery, Hercules and South Hercules deposits in western Tasmania are composed of polymetallic massive to disseminated sulphide mineralisation hosted in felsic volcanics of the Cambrian Mt Read Volcanic belt. The deposits have been affected by regional metamorphism of upper greenschist facies and associated tectonic deformation related to the Devonian Tabberabberan Orogeny. The Devonian tectonic movement has resulted in folding, shearing and faulting (thrusting) of the ore lenses which caused significant changes in the overall configuration of the original strati.form ores and underl

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33

Wade, Benjamin P. "Unravelling the tectonic framework of the Musgrave Province, Central Australia." Thesis, 2006. http://hdl.handle.net/2440/57768.

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The importance of the Musgrave Province in continental reconstructions of Proterozoic Australia is only beginning to be appreciated. The Mesoproterozoic Musgrave Province sits in a geographically central location within Australia and is bounded by older and more isotopically evolved regions including the Gawler Craton of South Australia and Arunta Region of the Northern Territory. Understanding the crustal growth and deformation mechanisms involved in the formation of the Musgrave Province, and also the nature of the basement that separates these tectonic elements, allows for greater insight i

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34

Wade, Benjamin P. "Unravelling the tectonic framework of the Musgrave Province, Central Australia." 2006. http://hdl.handle.net/2440/57768.

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The importance of the Musgrave Province in continental reconstructions of Proterozoic Australia is only beginning to be appreciated. The Mesoproterozoic Musgrave Province sits in a geographically central location within Australia and is bounded by older and more isotopically evolved regions including the Gawler Craton of South Australia and Arunta Region of the Northern Territory. Understanding the crustal growth and deformation mechanisms involved in the formation of the Musgrave Province, and also the nature of the basement that separates these tectonic elements, allows for greater insight i

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35

Hogan, Eric Gordon. "Sedimentologic and Stratigraphic Analysis of Units Defining the Basal Sauk Supersequence Across the Craton Margin Hinge Zone, Southeastern California." 2011. http://trace.tennessee.edu/utk_gradthes/880.

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In the Death Valley and Mojave Desert regions of southeastern California, the contact separating the lower and middle members of the Wood Canyon Formation (WCF) is currently interpreted as a regional scale unconformity coincident with the base of the Sauk Sequence. Regional mapping of this surface, however, reveals a nonconformable contact with underlying crystalline basement in cratonic settings, and a relatively conformable contact atop a northwest thickening wedge of miogeoclinal strata that is capped by the lower member of the WCF. Consistent with an unconformity, the progressive loss of

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36

Kamali, Mohammed Reza. "Sedimentology and petroleum geochemistry of the Ouldburra Formation, eastern Officer Basin, Australia / by Mohammad Reza Kamali." 1995. http://hdl.handle.net/2440/18732.

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Copies of author's previously published works inserted.<br>Bibliography: leaves 153-165.<br>ix, 165, [153] leaves, [10] leaves of plates : ill. (chiefly col.), maps ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>Thesis (Ph.D.)--University of Adelaide, National Centre for Petroleum Geology and Geophysics, 1996

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37

Nedin, C. "The nature of the Precambrian-Cambrian transition in the northern Flinders Ranges, South Australia." Thesis, 1990. http://hdl.handle.net/2440/119917.

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This item is only available electronically.<br>Previous investigations into the Ediacara Member of the late Proterozoic Rawnsley Quartzite in the Flinders Ranges have produced differing interpretations of the depositional environment. Studies at Nilpena Hills indicate that deposition was influenced by back barrier lagoonal conditions with the intermittent influx of fluidised sands which mantled lagoonal muds. Re-interpretation of the Ediacara assemblage shows a hitherto unrecognised benthonic bias. This abundance of sessile, benthonic forms supports a sub-tidal depositional environment.

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