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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 220 for “"Cenozoic"”.
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Late Cenozoic palynological studies on Java
This study is based on palynological investigations at three sites in Java: Bandung Lake, Trinil and Bumiayu. At Bandung Lake (Holocene) three cores were studied, while surface section samples were studied from Trinil in East Java (Middle Pleistocene) and Bumiayu in Central Java (Upper Pliocene). …
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Late Cenozoic uplift of southeastern Tibet
… large-magnitude compressional structures of late Cenozoic age are lacking, we propose that crustal thickening beneath the southeastern plateau margin has largely been accomplished by preferential thickening the lower crust. Perched, relict landscape remnants that reflect slow erosion, low initial …
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Cenozoic deep-water agglutinated foraminifera in the North Atlantic
Cenozoic (predominantly Paleogene) "flysch-type" agglutinated foraminiferal assemblages and their modern analogs in the North Atlantic and adjacent areas have been studied to provide an overview of their spatial and temporal distribution and utility for paleoenvironmental analysis. Over 200 species …
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Cenozoic deep-water agglutinated foraminifera in the North Atlantic
Thesis (Ph. D.)--Joint Program in Oceanography (Massachusetts Institute of Technology, Dept. of Earth, Atmospheric, and Planetary Sciences; and the Woods Hole Oceanographic Institution), February 1988.
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Newly discovered fossils provide novel insights on Cenozoic neotropical snakes
Las serpientes son un grupo de reptiles escamados con una enorme diversidad en el Neotrópico. Sin embargo, el registro fósil de estos vertebrados es escaso en el norte de Sur América. Aquí describo algunos fósiles de serpientes de tres diferentes localidades de Colombia. Primero, del Mioceno del …
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Cenozoic extension superimposed on a Mesozoic thrust belt, central Nevada
… Pancake Range underwent multiple episodes of Cenozoic extensional faulting. Fault sets generally strike N-S or NE-SW; one synvolcanic set strikes E-W. These normal fault sets: (1) form five temporally distinct episodes that correspond to regional tectonic events; (2) record a rotation in the …
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Cenozoic potassic magmatism and uplift of the Western United States
… with the onset of major uplift during the late Cenozoic. <br></br><br></br>The temporal evolution of magmatism and the degree of uplift, combined with geophysical and xenolith evidence, are consistent with a model in which uplift and preextensional magmatism of the Colorado plateau and Sierra …
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Cenozoic Tectonic Evolution of the Eastern Cordillera and Adjacent Basins
<p>Analyses of Global Positioning System (GPS) results, estimates of slip, seismic reflection data, and a variety of stress indicators (including borehole breakouts, natural fractures, and earthquake focal mechanism solutions) suggest that the Eastern Cordillera region in Colombia is an active zone …
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Cenozoic Sedimentary Evolution of the Helmville Basin, West-Central Montana
… Julian, Glenn, M.S., Spring 2008 Geosciences Cenozoic Sedimentary Evolution of the Helmville Basin, West-Central Montana Chairperson: Marc S. Hendrix The Helmville basin is an intermontane topographic depression located ~100 kilometers east of Missoula, Montana. The basin occurs within the …
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Cenozoic Sedimentary Evolution of the Helmville Basin, West-Central Montana
… Julian, Glenn, M.S., Spring 2008 Geosciences Cenozoic Sedimentary Evolution of the Helmville Basin, West-Central Montana Chairperson: Marc S. Hendrix The Helmville basin is an intermontane topographic depression located ~100 kilometers east of Missoula, Montana. The basin occurs within the …
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Basalt Magmatism as a Key to Unlocking Cenozoic Dynamic Topography
… useful insights can be gained by analysing Cenozoic basalt magmatism, which correlate with convectively driven regional uplift across the globe. This dissertation comprises three regional studies. First, Neogene-Quaternary magmatism of the Western Mediterranean region is analysed within a …
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Cenozoic extensional features in the geology of central mainland Greece
… trending folds are probably related to Late Cenozoic extension. The lack of through-going faults indicates that the North Giona fault and the Parnassos detachment do not connect. Structural relations also show that the Parnassos detachment is younger than the east-west trending fold …
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Late Cenozoic extension in Limni Basin in northern Evia, Greece
The Aegean region has undergone several episodes of extensional deformation from early Miocene to present time. Among the structures that accommodate extension are faults that bound and cut sediments within young fault-controlled sedimentary basins. The objective of this study is to add to …
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Late Cenozoic Exhumation in a Transpressional Setting: Fairweather Range, Alaska
… Average (~1 mm/yr) and peak (~3 mm/yr) late Cenozoic exhumation rates are similar to rates to the north, and suggest that the orogen is actually boomerang-shaped in map view. If ~1 mm/yr exhumation has been steady, the onset of rapid exhumation is constrained to post-12 Ma, but likely …
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Towards a model of the Cenozoic tectonic development of New Zealand
New Zealand has a regionally complex and diverse Cenozoic geological record. However, few attempts have been made so far to formulate a model of the Cenozoic tectonic development of New Zealand, which reconciles this regional complexity and diversity. The objective of this thesis is to work towards …
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Late Cenozoic basalts from the Basin-Range province, western United States
… and chemical analyses demonstrate that late Cenozoic mafic lavas from the Basin-Range province, western United States, are predominantly alkali-olivine basalts. Associated with these lavas are lesser volumes of basaltic andesite which appear to be differentiates from the more primitive alkali …
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Body Size Histories in Cenozoic Reptiles From Global to Community Scales
… maximum body size change in reptiles across the Cenozoic and examine which factors drive reptile size evolution at different scales. I characterize maximum body size trends of crocodylians, turtles, lizards, snakes, and birds across all terrestrial continents through the Cenozoic. My results show …
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