The Bengal Depositional System: From rift to orogeny
The Bengal Depositional System: From rift to orogeny
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DOI：
10.1016/j.margeo.2014.02.001
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发表时间：
2014-06
期刊：
影响因子：
2.9
通讯作者：
J. Curray
中科院分区：
文献类型：
--
作者：
J. Curray
孟加拉沉积体系被定义为地表沉积环境和底层沉积物堆积，从恒河和雅鲁藏布江下游的冲积、湖泊和沼泽沉积物延伸，穿过孟加拉三角洲、孟加拉国大陆架和斜坡直至并包括孟加拉扇。它是现代世界最大的沉积物堆积之一，其体积可与地质过去的巨大沉积物堆积相媲美。其形成历史始于中生代冈瓦纳大陆东部的裂解、印度向北漂移、与亚洲南缘的碰撞、西巽他弧的旋转和弯曲以及印度大陆块向南亚的渗透。在此历史中，随着青藏高原和喜马拉雅山的最终隆起，区域构造发生了演变，沉积物的来源和物源发生了变化。
The Bengal Depositional System is defined as the surface depositional environments and the underlying sediment accumulation extending from the alluvial, lacustrine and paludal sediments of the lower Ganges and Brahmaputra Rivers, across the Bengal Delta, the Bangladesh continental shelf and slope to and including the Bengal Fan. Together it is one of the greatest sediment accumulations in the modern world, and is comparable in volume to the great sediment accumulations of the geological past. The history of formation started with the Mesozoic breakup of Eastern Gondwanaland, the northward drift of India, its collision with the southern margin of Asia, rotation and bending of the western Sunda Arc, and the penetration of the Indian continental mass into southern Asia. During this history, the regional tectonics evolved and sources and provenance of the sediments changed with the ultimate uplift of the Tibetan Plateau and the Himalayas.