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Article citations


Shekhawat, L.S., Pandit, M.K. and Joshi, D.W. (2007) Geology and Geochemistry of Palaeoproterozoic Low-Grade Metabasic Volcanic Rocks from Salumber Area, Aravalli Supergroup, NW India. Journal of Earth Science System, 6, 511-524.

has been cited by the following article:

  • TITLE: Geochemistry of Palaeoproterozoic Rocks of Aravalli Supergroup: Implications for Weathering History and Depositional Sequence

    AUTHORS: Pavanesh K. Singh, M. Shamim Khan

    KEYWORDS: Clastic Geochemistry, Aravalli Supergroup, Rajasthan, Palaeoweathering, Indian Shield

    JOURNAL NAME: International Journal of Geosciences, Vol.8 No.10, October 31, 2017

    ABSTRACT: The Paleoproterozoic Aravalli Supregroup of rocks, hosted in Aravalli Craton of NW shield, is deposited in shallow and deep water conditions. The major lithologies are phyllites and quartzites with significant components of greywacks and dolomite. Geochemical indices in particular, CIA (Chemical Index of Alteration) values (avg. phyllites: 51.6 - 81.5, avg. quartzites: 57.4 - 95.5) calculated from the data of clastic rocks of ASG suggest minimum to highly intense weathering in the source region. Other indices including PIA, CIW and ICV along with plot patterns on the A-CN-K diagram also nearly endorse CIA based interpretation. These rocks possess relatively high Th/U ratios compared to that found in fresh igneous rocks or their high grade metamorphic equivalents. This high Th/U ratio is neither a source inheritance nor a result of oxidation state rather a manifestation of Th hosting mineral accumulation through sorting. Viewed in the context of present stratigraphic succession, the weathering history adduced from geochemistry does not seem compatible but matches well with earlier classification scheme wherein the evolution of Aravalli Supergroup was considered episodic.