Palaeo-Mesoproterozoic sedimentation and tectonics of the Singhbhum Craton, eastern India, and implications for global and craton-specific geological events

Rajat Mazumder, Shuvabrata De, Tohru Ohta, David Flannery, Leena Mallik, Trisrota Chaudhury, Priyanka Chatterjee, Marinah A. Ranaivoson, Makoto Arima

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    Abstract

    The Singhbhum Craton in eastern India preserves a depositional record from the Palaeo-Mesoarchaean to the Mesoproterozoic. Herein, we have summarized the Palaeo-Mesoproterozoic supracrustal record of the Singhbhum Craton, discussed tectonosedimentary processes and discriminated Palaeo-Mesoproterozoic global and craton-specific events. The late Palaeo-Mesoproterozoic supracrustal record of the Singhbhum Craton is limited. It includes evidence for high continental freeboard conditions during 2.6- 2.1 Ga in the form of terrestrial deposits (alluvial fan-fluvial) of the Dhanjori Formation. This was followed by a major transgression and a transition to the relatively deeper-water shelf to shallow intertidal environments recorded by the Chaibasa Formation. A long hiatus ensued before deposition of the Dhalbhum Formation and conformably overlying Dalma and Chandil formations, suggesting continued high continental freeboard during 2.2-1.6 Ga. In significant contrast to the craton-specific Dhanjori Formation volcanism, the 1.7- 1.6 Ga plume-related Dalma volcanism was probably part of a global tectonothermal event.

    Original languageEnglish
    Pages (from-to)139-149
    Number of pages11
    JournalGeological Society Memoir
    Volume43
    DOIs
    Publication statusPublished - 2015

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    ASJC Scopus subject areas

    • Geology

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