Hundred million years of landscape dynamics from catchment to global scale

• 成果类型: Article
• 署名作者: Salles, Tristan; Husson, Laurent; Rey, Patrice; Mallard, Claire; Zahirovic, Sabin; Boggiani, Beatriz Hadler; Coltice, Nicolas; Arnould, Maelis
• 署名单位: University of Sydney; Communaute Universite Grenoble Alpes; Universite Grenoble Alpes (UGA); Centre National de la Recherche Scientifique (CNRS); Institut de Recherche pour le Developpement (IRD); Universite Gustave-Eiffel; Universite Savoie Mont Blanc; Centre National de la Recherche Scientifique (CNRS); CNRS - National Institute for Earth Sciences & Astronomy (INSU); Universite PSL; Ecole Normale Superieure (ENS); Universite Claude Bernard Lyon 1
• 刊物名称: SCIENCE
• ISSN/ISSBN: 0036-11526
• DOI: 10.1126/science.add2541
• 发表日期: 2023-03-03
• 页码: 918-922
• 关键词: uplift history; sediment; erosion; ocean; rates; river; EVOLUTION; climate; record; MODEL

摘要

Our capability to reconstruct past landscapes and the processes that shape them underpins our understanding of paleo-Earth. We take advantage of a global-scale landscape evolution model assimilating paleoelevation and paleoclimate reconstructions over the past 100 million years. This model provides continuous quantifications of metrics critical to the understanding of the Earth system, from global physiography to sediment flux and stratigraphic architectures. We reappraise the role played by surface processes in controlling sediment delivery to the oceans and find stable sedimentation rates throughout the Cenozoic with distinct phases of sediment transfer from terrestrial to marine basins. Our simulation provides a tool for identifying inconsistencies in previous interpretations of the geological record as preserved in sedimentary strata, and in available paleoelevation and paleoclimatic reconstructions.