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首页> 外文期刊>Journal of Asian earth sciences >Proterozoic platform sequences of Peninsular India: Implications towards basin evolution and supercontinent assembly
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Proterozoic platform sequences of Peninsular India: Implications towards basin evolution and supercontinent assembly

机译：印度半岛的元古代平台序列：对盆地演化和超大陆组装的启示

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摘要

A group of less disturbed and unmetamorphosed 'Proterozoic' platformal sediment package lying over deformed and metamorphosed Archean to Paleoproterozoic basement in several parts of Peninsular India is informally termed as 'Purana' basins in Indian stratigraphy. The trend shift in the understanding of these basin fills in last two decades, often supported by international collaborations, has made significant advancements in respect to unconformity and 'Sequence' development, relationship with accretion and break-up of the supercontinents, initiation and evolution of the basins in different tectonic set ups, nature of sediment provenance, paleoclimate and paleo-weathering patterns and basin water chemistry. Geophysical backups encompassing the basins, occasionally extending up to the craton and adjacent mobile belts helped in refining the understanding on the basement structure and tectonic forcings. The present paper is an attempt towards the collation of the database generated in last two decades in order to present the status of current understanding on different 'Purana' basins with regard to interactions of physical, chemical and biological parameters of the Proterozoic Earth.
机译：在印度地层中，一群分布在变形和变质的太古宙至古元古代基底上的扰动程度较小且未变质的“元古代”平台沉积物包被非正式地称为印度地层中的“ Purana”盆地。过去二十年来，人们对这些盆地的认识逐渐发生变化，通常在国际合作的支持下，在不整合和“序列”发展，与超大洲增生和破裂的关系，地球的形成和演化方面取得了重大进展。不同构造构造的盆地，沉积物来源的性质，古气候和古风化模式以及盆地水化学。围绕盆地的地球物理备份，偶尔延伸到克拉通和邻近的移动带，有助于加深对基底结构和构造强迫的认识。本文是对过去二十年来生成的数据库进行整理的一种尝试，目的是就元古代地球的物理，化学和生物学参数之间的相互作用，介绍当前在不同的“波拉纳”盆地上的理解状况。

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