• Venkanna Banothu
• Dr. Linda Prabhakar Babu

The Archaean schist belts are remnants of once larger tracts of meta-volcanic and meta-sedimentary rocks that are mostly metamorphosed from greenschist to amphibolite facies. Amphibolite belonging to the Khammam Schist Belt (KSB) marked at the eastern fringe of the Eastern Dharwar Craton (EDC) still retains its parental basic magmatic signatures in terms of lithological association, mineral assemblage and geochemical character, which provides a clear picture of the Archaean magmatic activity, their petrogenesis and mode of evolution. Amphibolites occur as sporadic enclaves within the granite gneiss of Peninsular Gneissic Complex (PGC-II) exhibits strong foliation with epidote-amphibolite facies metamorphic mineral assemblages. Amphibolites of KSB from the Wyra area contains lower ferromagnesian values and low Ni (<200 ppm) content suggests fractionation of magma. Most of the amphibolites are having basaltic to basaltic-andesite composition classified as tholeiitic magmatic series indicating strong enrichment of iron in the initial stages. The high enrichment of LILE, LREE and depletion of HREE with pronounce negative troughs of Nb and Ti in the amphibolite is the product of volcanic arc basalt.

Khammam schist belt, Eastern Dharwar craton, Eastern Ghats Belt, Amphibolites

"Field relationship and Geochemical characterization of Amphibolites from Khammam schist belt at the margin of the Eastern Dharwar Craton, South of Wyra, Khammam District, Telangana, South India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 3, page no.d390-d402, March-2022, Available :http://www.jetir.org/papers/JETIR2203353.pdf

"Field relationship and Geochemical characterization of Amphibolites from Khammam schist belt at the margin of the Eastern Dharwar Craton, South of Wyra, Khammam District, Telangana, South India", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 3, page no. ppd390-d402, March-2022, Available at : http://www.jetir.org/papers/JETIR2203353.pdf