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CITZ (Central Indian Tectonic Zone) - opengeology.in
CITZ contains fragments of both, northern and southern cratonic domains and is traversed by four crustal scale fault & shear
2026-07-17 -
Eastern Ghats Mobile Belt (EGMB) - opengeology.in
It comprises gneiss, charnokites and khondalites of largely Neoarchean to Mesoproterozoic ages. These rocks were subjected to
2026-07-17 -
Replacement reactions (reaction rim/ corona) - opengeology.in
In metamorphic petrology the reactions generally involves the replacement of minerals by their polymorphs and often the reactions may not complete. In many reactions, a pseudomorph may develop in which the new mineral retain the older minerals shape. “Some reactions produce intimate, typically wormy-looking intergrowths of two or more minerals called symplectite texture. Pseudomorphs may […]
2026-07-17
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Aravalli Delhi fold belt - opengeology.in
The besetment of the Aravalli Mountains is comprised of Banded Gneissic Complex of Neoarchean age. It is overlain by the
2026-07-17