نتایج جستجو برای: the uplift
تعداد نتایج: 16053201 فیلتر نتایج به سال:
[1] Recent experimental and theoretical studies support the notion that bed load in mountain rivers can both enhance incision rates through wear and inhibit incision rates by covering the bed. These effects may play an important role in landscape evolution and, in particular, the response of river channels to tectonic or climatic perturbation. We use the channel-hillslope integrated landscape d...
The steep topography of mountain landscapes arises from interactions among tectonic rock uplift, valley incision and landslide erosion on hillslopes. Hillslopes in rapidly uplifting landscapes are thought to respond to river incision into bedrock by steepening to a maximum stable or ‘threshold’ angle1–3. Landslide erosion rates are predicted to increase nonlinearly as hillslope angles approach ...
[1] Asian monsoon climate variability at geological time scales is modulated by both the Earth’s orbital changes and tectonic uplift of the Tibetan Plateau (TP). Here, using bandpass-filtered versions of previously-published highresolution geological records from Chinese loess, we show that the orbital-scale variability of the East Asian summer monsoon (EASM) has increased dramatically since th...
This short note presents a derivation of the velocity description of deformation for the geometric models of pure-shear and simple-shear faultbend folding. This allows the calculation of rates of displacement, uplift and limb-rotation associated with such structures and their comparison with classical fault-bend folds. Using this velocity description, we examine the differences between pure-she...
The Shillong Plateau (northeastern India) constitutes the only significant topography in the Himalayan foreland. Knowledge of its surface uplift history is key to understanding topographic development and unraveling tectonic–climate–topographic coupling in the eastern Himalaya. We use the sedimentary record of the Himalayan foreland basin north of the Shillong Plateau to show that the paleoBrah...
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