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首页> 外文期刊>Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften: ZDGG >Chenier plain sedimentation in the Palaeogene-age lignite-rich successions of the Surat area, Gujarat, western India
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Chenier plain sedimentation in the Palaeogene-age lignite-rich successions of the Surat area, Gujarat, western India

机译：Chenier Parly沉积在古代植物植物富含苏格兰地区的古老植物，古吉拉特邦，印度西部

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摘要

The age and location of the Palaeogene lignite deposits found in three large opencast lignite mines (Vastan, Tadkeshwar and Rajpardi) in the region of Surat, Gujarat, western India, are of particular interest because of the coincidence of deposition and the collision of the Indian subcontinent with Eurasia. Detailed analysis of the outcrops has allowed the recognition of a variety of sedimentary facies, including lignites (and associated amber layers), mudstones, sandstones, carbonates and shell-rich horizons. The succession can be grouped into three predominant facies, namely, a) the shell beds, which are intimately associated with marked thicknesses of b) low-energy muds and c) lignites. The depositional system is interpreted as a nearshore/coastal chenier plain, similar to the extensive coastal systems developed along the northeast coast of present-day South America. Conditions along this mud-dominated coast were controlled by moist atmospheric conditions, which support the idea that India had entered the equatorial humid belt at the same time as the collision of India- Eurasia occurred.
机译：在印度西部古吉拉特邦古吉拉特邦古吉拉特邦古吉拉特邦地区的三个大型露天植物矿山（Vastan，Tadkeshwar和Rajpardi）的年龄和地点是特别令人兴趣的沉积和印度人的碰撞欧亚亚洲次大陆。对露头的详细分析允许识别各种沉积相，包括褐煤（和相关琥珀色层），泥岩，砂岩，碳酸盐和富含壳的视野。连续可以分为三个主要相，即，壳床，其与B）低能量泥浆和C的标记厚度相关联。沉积系统被解释为近岸/沿海Chenier平原，类似于沿着当天南美洲东北海岸开发的广泛沿海系统。沿着这种泥浆主导的海岸的条件是由潮湿的大气条件控制的，这支持印度在印度碰撞的同时进入赤道湿带的想法。

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