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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 153 for “"Late Cretaceous"”.
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Late cretaceous - early tertiary calcareous nannofossils from Australia
Title page, contents and abstract only. The complete thesis in print form is available from the University Library.
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Turonian (Late Cretaceous) Ostracoda from Dover, south-east England
… collected through the Turonian Stage of the Late Cretaceous from Dover, Kent, south-east England, consist of one hundred and three species group taxa. These are described and illustrated. This represents a significant increase in the knowledge of the Turonian fauna, since previous estimates …
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Depositional Model of a Late Cretaceous Dinosaur Fossil Concentration, Lance Formation
… taken and used in facies analysis. In addition, laterally continuous units were observed and mapped using real time kinematic (RTK) GPS equipment. For 3D analysis of the bonebed, we unitized a large GPS dataset collected over 20 years of excavation. Displaying and manipulating the points in …
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Multi-Disciplinary Analyses of Outcropping Late Cretaceous Clinoform Stratigraphy, Magallanes Basin, Chile
… through time. This thesis investigates Upper Cretaceous strata at Cerro Cazador in the Magallanes Basin, Chile, where a seismic-scale outcrop exposes shelf-edge clinoforms, deltaic strata, an incised submarine canyon, stratigraphic pinch-outs, and down-dip deep-water deposits within a …
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Stratigraphy and Palaeontology of the Late Cretaceous Wapiti Formation, west-central Alberta, Canada
… an extraordinarily diverse fauna during the latest Cretaceous, including dinosaurs, squamates, and fresh-water fishes and reptiles. Lastly, in order to better characterize the Wapiti Formation, major marker beds were described: these include several bentonites (altered volcanic ash deposits) …
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The Gastropods of The Late Cretaceous Ripley, Owl Creek, and Prairie Bluff Formations
Made available in DSpace on 2014-12-04T19:13:28Z (GMT). No. of bitstreams: 1 0010549.pdf: 28818227 bytes, checksum: e7f84879b5b449a70a5f0fdcb8107b16 (MD5) Previous issue date: 1954
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High resolution palaeoceanography and palaeoclimatology from mid and high latitude Late Cretaceous laminated sediments
Late Cretaceous laminated diatomaceous sediments from the Marca Shale (California) and CESAR 6 core (Arctic Ocean) have been analysed using scanning electron microscopy techniques and found to contain marine varves. The varve interpretation is based on the pervasive occurrence of laminae types that …
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Paleoenvironmental Reconstruction of the Late Cretaceous Eastern Gulf Coastal Plain in Georgia and Alabama
… (particularly paleoclimate) of the Late Cretaceous Eastern Gulf Coastal Plain of Georgia and Alabama using paleobotanical, paleoecological and geochemical methods in order to evaluate the Late Cretaceous climate of the Southeastern United States, and to add to the body of …
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The Middle to Late Cretaceous microbiostratigraphy (foraminifera) and lithostratigraphy of the Cauvery Basin, Southeast India
The present research is on the Cretaceous microbio- and litho-stratigraphy of the Cauvery Basin, Southeast India. The planktonic and benthonic foraminifera are used to establish microbiostratigraphic zonations for the mid-Cretaceous succession in the Basin; leading to the first proposal of a …
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Mid- to late Cretaceous Microbiostratigraphy, Palaeo-ecology and Palaeogeography of the Sergipe Basin, northeastern Brazil
… The foraminifera recovered - from the oldest, late Aptian, marine sediments reveal a characteristic Tethyan affinity and suggest that this area had at least minimal surface water exchange with low latitude central North Atlantic-western Tethyan bioprovinces, even possibly at intermediate (epi- …
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Late cretaceous (Maestrichtian) calcareous nannoplankton biogeography with emphasis on events immediately preceding the cretaceous/paleocene boundary
… conditions in the marine photic zone during the latest Cretaceous. Different theories explaining the biospheric turnover at the Cretaceous/Paleocene (KIP) boundary have alternatively suggested or denied substantial environmental perturbations during the last ~500 ky of the Cretaceous. The purpose …
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Late cretaceous (Maestrichtian) calcareous nannoplankton biogeography with emphasis on events immediately preceding the cretaceous/paleocene boundary
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences, 1993.
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Mineral Ridge: A Late Cretaceous Orogenic Gold System in the Miocene Silver Peak-Lone Mountain Metamorphic Core Complex
… cut Neoproterozoic metasedimentary rocks and Cretaceous peraluminous granite and migmatite. Gold production at Mineral Ridge since discovery in 1864 has been approximately 1 million oz. Gold-bearing veins are concentrated in a major low-angle ductile shear system active during the Late …
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Stratigraphy, sedimentology, and depositional environments of the Hell Creek Formation (Late Cretaceous) and adjacent strata, Glendive area, Montana
… of mostly sandstone, The Hell Creek Formation (Late Cretaceous) is 120 m thick, The basal member, the Little Beaver Creek, is up to 12 m thick and consists of about half sandstone and half shale. The Marmarth is 24 to 30 m thick and consists of mostly sandstone. The Bacon Creek is 36 m thick and …
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Braided stream deposition and provenance of the Late Cretaceous-Paleocene(?) Canaan Peak Formation, Table Cliff and Kaiparowits Plateaus, southwestern Utah
The Late Cretaceous to Paleocene(?) Canaan Peak Formation of southwestern Utah is comprised of approximately 100 m of cobble conglomerate and subordinate sandstone. Gravel deposition occurred during high-discharge periods within a Scott-type, perennial, braided fluvial system as longitudinal (Gm) …
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Sedimentary and ecosystem response to Late Cretaceous (Cenomanian - Turonian) paleoenvironmental events along the eastern margin of the Western Interior Seaway, Canada.
During the Cretaceous Period, the Western Interior Seaway (WIS) was influenced by long-term and short-term environmental changes. Vertebrate bonebeds are particularly abundant within the Cenomanian-aged strata of the Western Interior Sedimentary Basin’s eastern margin. The major control for their …
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Multiscale Integration of Empirical Geologic Observations with Quantitative Structural Modeling to Constrain Late Cretaceous to Eocene Paleostress Environments on the Colorado Plateau
… well as sequestration efforts. The ability to relate patterns of rock deformation to stress conditions also permits geologists to better understand structural evolution. This dissertation focuses on interpreting and modeling crustal stress conditions from outcrop to regional scale associated with …
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