Determining provenance and paleo-weathering conditions of Dahu Formation (lower Cambrian) sandstones by petrography and major elements geochemistry methods in Abyaneh section, Natanz west
Author(s):
Abstract:
In this study, petrological and geochemical characterizes of major elements of the Dahu Formation sandstones (lower Cambrian) in Abyaneh section which in west of Natanz, Central Iran have been investigated to specify the origin, tectonic setting and paleoweathering condition. According to petrological studies, sandstones in this region are fine to coarse grained with intermediate to good sorting. Generally these sandstones are identified as litharenite, sub-litharenite, quartz-arenite and partially pheldesphtic litharenite. By comparing major elements with UCC shows that all elements (except CaO and MnO) have depleted with respect to upper continental crust (UCC). Geochemical data in tectonic setting discernment diagrams show that sandstones were deposited in active continental margin mainly. High value (93) of chemical weathering index (CWI) suggests an intermediate igneous source rocks with wet and warm condition.
Keywords:
Language:
Persian
Published:
Applied Sedimentology, Volume:3 Issue: 6, 2016
Pages:
26 to 42
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