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A new cache of Eoarchaean detrital zircons from the Singhbhum craton, eastern India and constraints on early Earth geodynamics

Sreenivas, Bulusu; Dey, Sukanta; Rao, Bhaskar; Kumara, T. Vijaya; Babu, E. V. S. S. K.; Williams, Ian

Description

The dominant geodynamic processes that underpin the formation and evolution of Earth's early crust remain enigmatic calling for new information from less studied ancient cratonic nuclei. Here, we present U–Pb ages and Hf isotopic compositions of detrital zircon grains from ∼2.9 Ga old quartzites and magmatic zircon from a 3.505 Ga old dacite from the Iron Ore Group of the Singhbhum craton, eastern India. The detrital zircon grains range in age between 3.95 Ga and 2.91 Ga. Together with the...[Show more]

CollectionsANU Research Publications
Date published: 2019
Type: Journal article
URI: http://hdl.handle.net/1885/201953
Source: Geoscience Frontiers (Previously Earth Science Frontiers)
DOI: 10.1016/j.gsf.2019.02.001
Access Rights: Open Access

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