Global evaluation of erosion rates in relation to tectonics

Autor: Takashi Oguchi, Hagar Hecht
Rok vydání: 2017
Předmět:
Zdroj: Progress in Earth and Planetary Science, Vol 4, Iss 1, Pp 1-9 (2017)
ISSN: 2197-4284
DOI: 10.1186/s40645-017-0156-3
Popis: Understanding the mechanisms and controlling factors of erosion rates is essential in order to sufficiently comprehend bigger processes such as landscape evolution. For decades, scientists have been researching erosion rates where one of the main objectives was to find the controlling factors. A variety of parameters have been suggested ranging from climate-related, basin morphometry and the tectonic setting of an area. This study focuses on the latter. We use previously published erosion rate data obtained mainly using 10Be and sediment yield and sediment yield data published by the United States Geological Survey. We correlate these data to tectonic-related factors, i.e., distance to tectonic plate boundary, peak ground acceleration (PGA), and fault distribution. We also examine the relationship between erosion rate and mean basin slope and find significant correlations of erosion rates with distance to tectonic plate boundary, PGA, and slope. The data are binned into high, medium, and low values of each of these parameters and grouped in all combinations. We find that groups with a combination of high PGA (> 0.2.86 g) and long distance (> 1118.69 km) or low PGA (
Databáze: OpenAIRE