Provenance and weathering history of Mesoproterozoic clastic sedimentary rocks from the basal Gulcheru Formation, Cuddapah Basin

被引：0

作者：

Gopal Chakrabarti

Debashish Shome

Blanca Bauluz

Subhajit Sinha

机构：

[1] Durgapur Govt. College,Department of Geology

[2] Jadavpur University,Department of Geological Sciences

[3] The Universidad de Zaragoza,undefined

[4] Wadia Institute of Himalayan Geology,undefined

来源：

Journal of the Geological Society of India | 2009年 / 74卷

关键词：

Mesoproterozoic; Provenance; Chemical index of alteration; Tectonic discrimination diagram;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Geochemical analysis for the Mesoproterozoic clastic sedimentary rocks of the basal Gulcheru Formation of the Cuddapah Basin in the Gugudu-Dadithota-Parnapalle-Palkonda region (extending atleast 40 km) have been performed to highlight their provenance and weathering history. The low K2O/Al2O3 ratios of the representative samples points to the recycled nature of sediments and illite clay in the sediments indicate an overall cold climate (low chemical weathering degree). All the provenance diagrams indicate a mixed source of the Gulcheru sediments with felsic dominancy and Upper continental crust (UCC) signature.

引用

页码：119 / 130

页数：11

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