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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 14 of 14 for “"uplift history"”.
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Uplift history and geomorphic development of the Southern Alps, New Zealand, assessed by fission track analysis
The uplift history and geomorphic development of the Southern Alps has been studied, using fission track analysis of basement samples in combination with measurement of the present geomorphology of the Southern Alps. During the late Cenozoic the Pacific plate has been converging obliquely with the …
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Integrating apatite (U-Th)/He and fission track dating for a comprehensive thermochronological analysis: refining the uplift history of the Teton Range
Uplift of the Teton Range is primarily controlled by displacement across the range-front Teton normal fault. The Tetons comprise the footwall block while the hanging wall encompasses Jackson Hole valley and a portion of the Snake River. Relative to the rest of the Rocky Mountains, the Tetons …
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Long-Term Surface Uplift History of the Active Banda Arc-Continent Collision: Depth and Age Analysis of Foraminifera from Rote and Savu Islands, Indonesia
… Indonesia, reveals high rates of surface uplift in the past 1.5 Ma of the incipient Banda arc-continent collision. Paleodepth estimates are derived from benthonic forams and ages from planktonic forams. But estimates are complicated, however, by abundant reworking; yet several distinctive …
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Fluid evolution during metamorphism and uplift of the massive sulfide deposits at Ducktown, Tennessee, U.S.A.
… and subsequent conversion of CO₂ to CH₄ during uplift in response to an fH₂ gradient between inclusion and matrix fluids. Low δD values of primary fluid inclusions are consistent with diffusive addition of isotopically light hydrogen after trapping. Secondary inclusions in metamorphic quartz …
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The sedimentary record of seafloor uplift
… by vertical seafloor movements, such as uplift and subsidence. The vertical deformation of the seafloor and subsurface influences sedimentary systems, hydrocarbon distribution, paleoclimate archives, and poses significant geohazard risks. This thesis investigates the different origins, …
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Epeirogeny of South America and Evolution of Parnaíba Basin, Northeast Brazil
… is applied to retrieve a continental-scale uplift history. Erosional parameters are calibrated against an independently derived uplift history of the Borborema Province that reveals uplift in the last 30 Ma. Results suggest that the bulk of South American regional topography grew during …
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Quantitative Analysis of River Profiles and Fluvial Landscapes
… river profiles to obtain testable cumulative uplift histories implies that channels respond predictably to regional tectonic forcing. However, these models make simplifying assumptions about drainage networks that require careful justification. For example, precipitation rate is assumed to be …
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Deciphering climatic controls on sedimentation in a tectonically active area, Cyprus
… active period coeval with major climatic change. Uplift, associated with the activities of the supra-subduction zone to south of island was concomitant with global cooling, the expansion of the Northern Hemisphere Ice Sheets and the Middle Pleistocene Transition. Despite the globally significant …
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Geology of the Phil Pico Mountain Quadrangle, Daggett County, Utah, and Sweetwater County, Wyoming
… additional constraints on the erosional and uplift history of this section of the north flank of the Uinta Mountains. Phil Pico Mountain is largely composed of the conglomeratic facies of the early Eocene Wasatch and middle to late Eocene Bridger Formations. These formations are separated by …
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Ultrahigh-resolution paragenesis of the Cambrian-age Mt. Simon Sandstone at a burial depth of 1.8-2.1 km, Illinois basin, USA
… and provided the depositional and diagenetic history required to enhance carbon capture and storage (CCS) strategies within early Paleozoic strata of the Illinois Basin. Petrographic analyses of the host quartz arenite Mt. Simon Sandstone lithologies, coupled with wireline log data and …
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Understanding topographic evolution of continents with landscape evolution simulations: the case of North America
… mechanisms of both the WIS and the subsequent uplift remain debated. In general, proposed mechanisms of continental-scale vertical motions can be categorized into: 1) isostatic topographic variation due to changes in lithospheric buoyancy, and 2) dynamic topography driven by flow within the …
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Dynamic Topography of Madagascar and its Surroundings
… during Neogene times suggests that a pulse of uplift of 100--500~m occurred at $30\pm10$~Ma. Samples at the base of escarpments have cooled more significantly than those located higher up, suggesting that erosion is diachronous. The uplift history of Madagascar is also determined by jointly …
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Evaluating the Controls of Neogene Exhumation in the Tropical Northern Andes (colombia)
… the evolution of the landscapes through earth's history. This dissertation aims to determine how do tectonic processes and climate variability interact to shape Earth's tropical mountains. In chapter 1, I studied the Eastern Cordillera of the Northern Andes, a mountain range located in Colombia …
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EPISODIC UPLIFT OF THE ROCKY MOUNTAINS: EVIDENCE FROM U-PB DETRITAL ZIRCON GEOCHRONOLOGY AND LOW-TEMPERATURE THERMOCHRONOLOGY WITH A CHAPTER ON USING MOBILE TECHNOLOGY FOR GEOSCIENCE EDUCATION
… Cretaceous. These units have been differentially uplifted/subsided and are presently at elevations of -10 to 4 km elevations, and have been eroded from above the core of many Precambrian basement cored uplifts exposed in > 4 km peaks. This study applies several different methodologies towards …