期刊
TERRA NOVA
卷 29, 期 5, 页码 282-293出版社
WILEY
DOI: 10.1111/ter.12274
关键词
-
资金
- Swiss National Science Foundation [155892]
We present Be-10-based basin-averaged denudation rates for the entire western margin of the Peruvian Andes. Denudation rates range from c.9mm ka(-1) to 190mm ka(-1) and are related neither to the subduction of the Nazca plate nor to the current seismicity along the Pacific coast and the occurrence of raised Quaternary marine terraces. Therefore, we exclude a tectonic control on denudation on a millennial time-scale. Instead, we explain >60% of the observed denudation rates with a model where erosion rates increase either with mean basin slope angles or with mean annual water discharge. These relationships suggest a strong environmental control on denudation.
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