Peninsular gneiss

geological feature, India

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July 1, 2026

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The Peninsular gneiss refers to a geological feature found in southern India, specifically within the Indian subcontinent. It is part of the granulite-gneiss belts, which are remnants of continental cratons formed in the mid-lower crust of the Archean Eon, between 4 and 2.5 billion years ago. These belts represent highly uplifted sections of continents where the upper crust has been eroded, exposing rocks that were metamorphosed at high temperatures and pressures deep within the Earth's crust. The Peninsular gneisses, along with the Sargur supracrustals, are considered among the oldest suture zones in India.12

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Asia
The Precambrian
…intrusive or tectonic contacts with Peninsular gneiss of similar age. The so-called Sargur schist belts within the Peninsular gneiss may be the oldest suture zones in the Indian subcontinent. In the Angaran platform the older (i.e., more than 3 billion years) gneiss-granulite basement shows a progressive development in time from…
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…intrusive or tectonic contacts with Peninsular gneiss of similar age. The so-called Sargur schist belts within the Peninsular gneiss may be the oldest suture zones in the Indian subcontinent. In the Angaran platform the older (i.e., more than 3 billion years) gneiss-granulite basement shows a progressive development in time from…
Read More