• C. Perumalsamy

The subduction of Neotethyan oceanic slab-derived fluids/melts generates a metasomatized lithospheric mantle beneath the Eurasian margin. The mafic enclaves formed by the subduction-modified mantle source derived mafic magmas with intense fractional crystallization and late-stage assimilation of felsic magmas of Neotethyan amphibolite lower crustal melting. The I-type Ladakh granitoids were generated by mantle-derived mafic mixing with felsic magmas of the heterogeneous melting of the heterogeneous source rocks of low to high K Neotethyan amphibolite lower crust, KLA tonalitic lower crust and northern Indian margin metasediments in the active margin of the Eurasian plate. The formation of mafic enclaves and Ladakh granitoids related to the subducted Neotethyan slab roll-back induced asthenospheric mantle upwelling and the initial contact between Indian and Eurasian plates.

Mafic enclaves, granitoids, Metasomatism, Geochemistry, Magma mixing, Slab roll-back.

"The petrogenesis of mafic enclaves and Ladakh granitoids in the southern margin of Ladakh batholith: Evidence of magma mixing and chemical equilibrium", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 11, page no.f897-f913, November-2022, Available :http://www.jetir.org/papers/JETIR2211620.pdf

"The petrogenesis of mafic enclaves and Ladakh granitoids in the southern margin of Ladakh batholith: Evidence of magma mixing and chemical equilibrium", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 11, page no. ppf897-f913, November-2022, Available at : http://www.jetir.org/papers/JETIR2211620.pdf