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Archean greenstones are formed from Obasalts produced at hot spots. O sand and clay eroded from volcanic areas. O the precipi

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Archean green stone belts are formed from

The answer to the question is option D which is

Metamorphosed relicts of ocean crust.

The first stage of sheild formation of various craton forms from green stone belts which represents the remnants of primordial crust. The temperature is also very high due to global heat production. These are the zones of variably metamorphosed mafic to ultramafic volcanic sequences with associated sedimentary rocks with in Archean and Proterozoic cratons between granite and gneiss bodies.

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