• Marka Dinesh
• M. Srinivas
• Ch. Karunakar
• G. Rajeshwari
• R. Ranga

This paper presents the petrology and geochemistry of SE part of Dharmaram granites which are occur near to Karimnagar Granulite belt area, NE of Karimnagar district of Telangana State within Eastern Dharwar Craton (EDC). Geologically, the study area is dominated by granitic rocks of Precambrian age. The lithological variants in the study area mostly covered by pink granites, gneissic grey granites, coarse-grained pegmatite veins, quartz veins and epidote veins are observed as cross-cutting or parallel to the granitoids and are sometimes folded and deformed. The monzogranite is megascopically medium to coarse grained, inequigranular, porphyritic in texture and composed of K-feldspar (microcline perthite; 25-36% by volume), quartz (27-31%) and plagioclase (31-39%) in the order of decreasing abundance. Mafic minerals include biotite (2-8 %) and magnetite, titanite, zircon and apatite are accessory phases. Presence of discrete plagioclase grains in substantial proportions suggests sub-solvus crystallisation of the parental magma. Geochemically monzogranite are having high SiO2 (69-73 wt. %), high K2O (4-6wt. %) and low Na2O (3 wt.%). The chondrite normalised REE patterns of monzogranite display LREE-enriched and HREE-depleted patterns with negative Eu anomaly. The monzogranites show high LREE/HREE ratio that hints at either fractional crystallisation or an LILE-enriched source. The negative Eu anomaly indicates the role of feldspar in the genesis of the monzogranites. And one sample shows positive europium anomaly indicate role plagioclase in equilibrium conditions.

Granite, TTG, dolerite dyke, pegmatite quartz vein, Dharwar craton, Dharmaram.

"Petrography and Geochemistry of the Monzogranites from SE part of Dharmaram, Peddapalli District, Eastern Dharwar Craton, South India.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 3, page no.d485-d494, March-2023, Available :http://www.jetir.org/papers/JETIR2303362.pdf

"Petrography and Geochemistry of the Monzogranites from SE part of Dharmaram, Peddapalli District, Eastern Dharwar Craton, South India.", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 3, page no. ppd485-d494, March-2023, Available at : http://www.jetir.org/papers/JETIR2303362.pdf