Global ETD Search
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 17 of 17 for “"Mountain belt"”.
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Lithological and climatic controls on fluvial landscape evolution of a post-orogenic dryland mountain belt
Many mountain ranges in the world are in post-orogenic decay, a stage in which erosion is dominant over crustal thickening. The dominance of regional isostatic and mantle controls on rock uplift over localised fault uplift means climatic changes and intrinsic properties such as drainage capture and …
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A Potential Long-lived Upper Cretaceous Paleodrainage System In The U.s. Southwestern Georgia-southeastern Alabama Region
… Columbus Metamorphic Complex, the nearby Pine Mountain belt and potentially rocks of Inner Piedmont-eastern Blue Ridge terranes. Mapping along the Coastal Plain unconformity near the Lower Chattahoochee River Valley indicates the presence of one or more large paleovalleys in the Upper …
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Submarine channelforms and fans in the Miocene Moki and Mount Messenger formations, Taranaki Basin, New Zealand
… onset of uplift and erosion of the Southern Alps mountain belt, supplied the basin with copious sediment, continuing to the Recent. This resulted in the development of a northwestward prograding shelf-slope wedge within the basin. The Moki and Mount Messenger formations accumulated as sandstone …
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Integrating high-precision U-Pb geochronologic data with dynamic models of earth processes
… and rate of transition between the stages of mountain belt formation and stability. Chapter six works to constrain the timing and duration of Central Atlantic Magmatic Province flood basalt volcanism and its relationship to the end Triassic mass extinction. The seventh and final chapter uses …
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Tectonic and climatic control on the evolution of the Himalayan mountain front
… the spatiotemporal evolution of active mountain belts. The Himalayan mountain belt is one of the most significant Cenozoic collisional mountain belt, formed due to collision between northward-bound Indian Plate and the Eurasian Plate during the last 55-50 Ma. Ongoing convergence of these …
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Geologic and tectonic evolution of the Manzano Peak Quadrangle, central New Mexico
The Sandia and Manzano Mountains in central New Mexico are a N-S-striking, Precambrian-cored, uplift that forms the east flank of the Albuquerque Basin of the Rio Grande Rift. During the Paleoproterozoic, the Precambrian rocks exposed in the range were accreted onto the "southward" growing …
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From the Foreland and Retroarc Thrust Belts to the Mantle Transition Zone: First Multi-Scale Retrodeformable Transect of the Active 90 mm/yr Taiwan Arc-Continent Collision
… reflection profiles of the retroarc thrust belt near Chimei Canyon offshore eastern Taiwan, which is one of the largest submarine canyons around Taiwan and results from the <1 Ma uplift of the retroarc thrust belt and submarine erosion. Chapter 2 presents the precollisional architecture of …
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Earthquake-induced landsliding
… features and contributing to landscape and mountain formation. However, seismic waves produced by earthquakes may also destabilize hillslopes, leading to large amounts of soil and bedrock moving downslope. Moreover, static deformation and shaking are suspected to damage the surface bedrock …
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The kinematics and dynamics of active mountain ranges
… deformation in and around active continental mountain belts, and comprises three interconnected studies. The first chapter investigates lateral variations in the foreland of the New Guinea Highlands, a young mountain range which sits on the northern edge of the Australian plate. I construct …
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Source parameters of the major historical earthquakes in the Tien-Shan region from the late 19th to the early 20th century
… neighboring Pamir region are two of the largest mountain belts in the world. Their deformation is dominated by intermontane basins bounded by active thrust and reverse faulting. The Tien-Shan mountain belt is characterized by a very high rate of seismicity along its margins as well as within the …
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Shearing on the Great Glen Fault: Kinematic and Microstructural Evidence Preserved at Different Crustal Levels
… plate reconstruction models for the Caledonian mountain belt, now exposed in East Greenland, Scandinavia, and Scotland. In contrast, a recent study (Searle 2021) has argued that motion on the GGF may instead have initiated in the Upper Paleozoic and that off-set is therefore minimal, bringing …
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Orbital-scale fluctuations in continental weathering flux and continental ice-volume during greenhouse and icehouse climate intervals : evidence from oxygen and neodymium isotopes
… claims of far-field transport of Caledonian Mountain Belt material via trans-Laurentian fluvial systems.
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Fault interaction at different time- and length scales : the North Tehran thrust and Mosha-Fasham fault (Alborz mountains, Iran)
The seismically active Alborz mountains of northern Iran are an integral part of the Arabia-Eurasia collision. Linked strike-slip and thrust/reverse-fault systems in this mountain belt are characterized by slow loading rates, and large earthquakes are highly disparate in space and time. Similar to …
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Tectonics and kinematics of curved mountain belts: examples from the Andes and the Alps
Curved mountain belts have always fascinated geologists and geophysicists because of their peculiar structural setting and geodynamic mechanisms of formation. The need of studying orogenic bends arises from the numerous questions to which geologists and geophysicists have tried to answer to during …
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The orogenic evolution of the Central Kyrgyz Tien Shan
Intra-continental mountain belts typically form as a result of tectonic forces associated with distant plate collisions. In general, each mountain belt has a distinctive morphology and orogenic evolution that is highly dependent on the unique distribution and geometries of inherited structures and …
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Climate variability and extreme hydro-meteorological events in the Southern Central Andes, NW Argentina
… society. This is particularly true for high-mountain areas, such as the eastern flank of the southern Central Andes of NW Argentina, a region impacted by deep convection processes that form the basis of extreme events, often resulting in floods, a variety of mass movements, and hillslope …
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The kanarra fold-thrust system -- The leading edge of the sevier fold-thrust belt, southwest Utah
“The Jurassic to Eocene Sevier fold-thrust belt is the subject of continued scientific curiosity in tectonics, stratigraphy, and industry. Understanding its development in southwest Utah is hindered in part due to the multiple origins proposed for the Kanarra anticline, a major leading edge …