RAM'S IAS STUDY CIRCLE - Earth's first landmass emerged in Singhbhum

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TNPSC | 17 November 2021 03:37:34

Earth's first landmass emerged in Singhbhum

A new study has challenged the widely accepted view that the continents rose from the oceans about 2.5 billion years ago
This happened 700 milllion years earlier- about 3.2 billion years ago- and that the earliest continental landmass to emerge may have been Jharkhnd's Singhbhum region
Scientists have found sandstones in Singhbhum with geological signatures of ancient river channels, tidal plains and beaches over 3.2 billion years old
Representing the earliest crust exposed to air