نتایج جستجو برای: uplift pressure
تعداد نتایج: 411477 فیلتر نتایج به سال:
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] 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...
[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...
Terrain generation finds many applications such as in CGI movies, animations and video games. This paper describes a new and simple-to-implement terrain generator called the Uplift Model. It is based on the theory of crustal deformations by uplifts in Geology. When a number of uplifts are made on the Earth’s surface, the final net effect is an average of the influence of each uplift at each poi...
Development of alternative livelihoods has become a popular policy to uplift the socioeconomic status of small-scale fishers and to reduce fishing pressure on overexploited fisheries. Seaweed farming has been incorporated into many community-based coastal resources management projects and fisheries management initiatives as an alternative livelihood option for fishers in tropical developing cou...
Rolling-based seismic isolation systems, in which rollers of circular or non-circular section are used, are less expensive and easier to manufacture. However, this type of isolation suffers from either lack of restoring or re-centering capability, or weakness against uplift forces. To resolve the first shortcoming the use of elliptical as well as pillow-shape rolling parts has been suggested, a...
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