• Pooja Brahman
• Deva Ram Meghwal
• Shishir Sharma

Petrography is mainly deals with the systematic classification and specific description of rocks. Petrographic descriptions includes with the field records at the outcrop and macroscopic study of hand-sized specimens in thin sections. The detailed analysis of minerals by optical mineralogy in thin section and the micro-texture and structure are needs to understanding the origin of the rock. In the Bidasar-Dunkar-Charwas and Surawas area of Churu district Ophiolite suite of rocks mainly ultramafic are exposed which includes serpentinite, serpentinized pyroxenite, pyroxenite, amphibolite and gabbro are bounded by rocks of Delhi supergroup in east and Marwar supergroup by west and south. Northern part of suite is buried in the thick cover of windblown sand of Thar Desert. Ophiolites represent slivers of ancient oceanic lithosphere obducted onto the continental or oceanic crust. Mineralogical association, textural and structural relationship with evolution history of exposed rocks in the area of investigation around Bidasar in Churu district, Rajasthan has been established in present study.

Bidasar, Delhi Supergroup, Petrography, Texture, Thar Desert, Ophiolite Suite, Ultramafic.

"PETROGRAPHICAL CHARACTERISTICS OF MAFIC AND ULTRAMAFIC ROCKS AROUND BIDASAR, CHURU DISTRICT, RAJASTHAN", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.11, Issue 1, page no.e378-e382, January-2024, Available :http://www.jetir.org/papers/JETIR2401445.pdf

"PETROGRAPHICAL CHARACTERISTICS OF MAFIC AND ULTRAMAFIC ROCKS AROUND BIDASAR, CHURU DISTRICT, RAJASTHAN", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.11, Issue 1, page no. ppe378-e382, January-2024, Available at : http://www.jetir.org/papers/JETIR2401445.pdf