Loess Plateau storage of Northeastern Tibetan Plateau-derived Yellow River sediment.
Loess Plateau storage of Northeastern Tibetan Plateau-derived Yellow River sediment.
复制标题
黄土高原青藏高原东北部黄河沉积物储量
DOI：
10.1038/ncomms9511
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发表时间：
2015-10-09
影响因子：
16.6
通讯作者：
Pan B
中科院分区：
文献类型：
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作者：
Nie J;Stevens T;Rittner M;Stockli D;Garzanti E;Limonta M;Bird A;Andò S;Vermeesch P;Saylor J;Lu H;Breecker D;Hu X;Liu S;Resentini A;Vezzoli G;Peng W;Carter A;Ji S;Pan B
海洋堆积的陆源沉积物被广泛认为是准确记录气候和构造控制的山脉剥蚀，并在了解晚新生代山脉隆升和全球变冷方面发挥重要作用。支持这一观点的假设是，从内陆造山带侵蚀而来的大部分沉积物被输送到并最终储存在海洋盆地中，侵蚀和沉积之间几乎没有滞后。在这里，我们使用一个详细的和多技术的沉积物源数据集从黄河显示，大量的沉积物从西藏东北部侵蚀和携带的河流上游存储在中国黄土高原和西部毛乌素沙漠。这一发现修正了我们对中国黄土高原起源的认识，并为晚新生代陆地沉积和海洋地球化学记录以及全球CO2和侵蚀记录之间的不匹配提供了一个潜在的解决方案。
Marine accumulations of terrigenous sediment are widely assumed to accurately record climatic- and tectonic-controlled mountain denudation and play an important role in understanding late Cenozoic mountain uplift and global cooling. Underpinning this is the assumption that the majority of sediment eroded from hinterland orogenic belts is transported to and ultimately stored in marine basins with little lag between erosion and deposition. Here we use a detailed and multi-technique sedimentary provenance dataset from the Yellow River to show that substantial amounts of sediment eroded from Northeast Tibet and carried by the river’s upper reach are stored in the Chinese Loess Plateau and the western Mu Us desert. This finding revises our understanding of the origin of the Chinese Loess Plateau and provides a potential solution for mismatches between late Cenozoic terrestrial sedimentation and marine geochemistry records, as well as between global CO2and erosion records.