Hillslope evolution by bedrock landslides
Hillslope evolution by bedrock landslides
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DOI：
10.1126/science.275.5298.369
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发表时间：
1997-01-17
期刊：
影响因子：
56.9
通讯作者：
Ellis, MA
中科院分区：
文献类型：
--
作者：
Densmore, AL;Anderson, RS;Ellis, MA
在许多高地貌景观中，基岩滑坡是一种主要的地貌过程，但在景观演化模型中被忽视。提出了一种豆内滑动的物理模型，其中单壁的增量下降模拟了基准面的下落并产生了滑动。频繁的小滑坡会产生不规则的山坡，陡峭的脚趾和陡峭的山崖一直存在，直到被不常见的大滑坡清除。这些陡峭的地段是在高起伏地貌的山坡上观察到的，并被解释为构造或气候过程比率增加的证据。在某些情况下，它们可能会通过滑坡反映正常的山坡演变。
Bedrock landsliding is a dominant geomorphic process in a number of high-relief landscapes, yet is neglected in landscape evolution models. A physical model of sliding in beans is presented, in which incremental lowering of one wall simulates baselevel fall and generates slides. Frequent small slides produce irregular hillslopes, on which steep toes and head scarps persist until being cleared by infrequent large slides. These steep segments are observed on hillslopes in high-relief landscapes and have been interpreted as evidence for increases in tectonic or climatic process rales. In certain cases, they may instead reflect normal hillslope evolution by landsliding.