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Tectonic uplift is the geologic uplift of Earth's surface that is attributed to plate tectonics. While isostatic response is important, an increase in the mean elevation of a region can only occur in response to tectonic processes of crustal thickening (such as mountain building events), changes in the density distribution of the crust and ...
Post-glacial rebound (also called isostatic rebound or crustal rebound) is the rise of land masses after the removal of the huge weight of ice sheets during the last glacial period, which had caused isostatic depression. Post-glacial rebound and isostatic depression are phases of glacial isostasy (glacial isostatic adjustment, glacioisostasy ...
A tectonic aneurysm is an isolated zone of extreme uplift and exhumation rates. This forms when uplift from local tectonics are combined with very weak crust and uplift from a river anticline. When a major river flows over an area of tectonic uplift, the erosion from the river will erode the uplifted material.
Geologic effects. Delamination of the lithosphere has two major geologic effects. First, because a large portion of dense material is removed, the remaining portion of the crust and lithosphere undergo rapid uplift to form mountain ranges. Second, flow of hot mantle material encounters the base of the thin lithosphere and often results in ...
In tectonics, vertical displacement refers to the shifting of land in a vertical direction, resulting in uplift and subsidence. [1] The displacement of rock layers can provide information on how and why Earth's lithosphere changes throughout geologic time. [1] There are different mechanisms which lead to vertical displacement such as tectonic ...
Earth's crustal evolution. Surface map of oceanic crust showing the generation of younger (red) crust and eventual destruction of older (blue) crust. This demonstrates the crustal spatial evolution at the Earth's surface dictated by plate tectonics. Earth's crustal evolution involves the formation, destruction and renewal of the rocky outer ...
In the case of tectonic driven uplift, an active thrust front is present, constantly driving crustal materials upwards. This adds weight to the Earth's surface, causing land subsidence. Since the nearer a spot is to the active thrust front, the greater the effect of weight the uplifted crust has on the land surface, asymmetric subsidence is ...
Himalaya-Tibet uplift may have caused mid-Miocene global cooling because of the impact of tectonic uplift on the long-term carbon cycle. [32] Uplift and monsoon intensification led to increased subsidence, [ 5 ] chemical weathering rates, and organic carbon burial, which in turn caused drawdown of atmospheric carbon dioxide, therefore resulting ...