『Abstract
Sediment accumulation rates of well-dated, primarily terrigenous
marine sediments collected along the Chilean continental margin
were used to infer erosion rates of the southern Andes and the
adjacent Coastal Cordillera. Compared to the Holocene, sediment
supply to the margin and thus erosion were substantially enhanced
during the last glacial, when continental rainfall in the region
was higher. Major changes in precipitation forcing to the southern
Andes on such glacial-interglacial time scales appear to be transferred
to offshore sedimentation rates by a fixed relation. These data
show that marine archives can make it possible to trace variability
in erosion at adjacent continents on time scales to 103
yr, a much better resolution than provided by commonly used methods
such as thermochronometry or seismic studies.
Keywords: marine sediments; erosion; climate change; Andes; southern
Pacific; precipitation』
Introduction
Regional setting
Material and methods
Results and discussion
Conclusions
Acknowledgments
References cited