Mineral Chemistry and Nomenclature of Amphiboles From Thana Bhilwara, Rajasthan, India

Abstract

Amphiboles are frequently observed in the medium to high grade metamorphic rocks of garnet bearing amphibolites from Thana. In present work, authors have discussed the mineral chemistry and nomenclature of amphiboles. On the basis of mineral chemistry, the amphibole from garnet bearing amphibolite are normally varies from Hastingsite, Ferropargasite to Tschermakite variety.

Petrological and Geochemical Characteristics of Al-rich Pelitic Granulites/Paragneiss from Thana, District-Bhilwara Rajasthan: Implication for Its Origin

“…1725 and ca. 1622 Ma Sarkar et al (1989) [5] ; Joshi et al, (1993) [6] ; Fareeduddin et al, (1994) [7] and Roy et al, (2005) [8] ; Buick et al, (2006) [9] ; Rao et al, (2011) [10] The granulite facies rocks include charnockite/enderbite, mafic granulites, khondalites, leptynites and Al-Mg riched metapelites, reported by Sharma, R.S., (1977,1988 and 1999) [11][12][13] ; [14] and Thomas (1995 and2005) [15,16] ; Thomas and Sujata (2008) [17] , Thomas and Neeraj, (2011a and b) [18,19] ; Thomas and Lalu, (2014) [20] ; Kavita and Thomas, (2018) [21] , Neeraj and Thomas, (2015) [22] and Thomas, H., and Rana, H. (2020) [23] . Al-rich pelitic granulites/paragneiss are the special type of mixed meta-morphic of Bhilwara Complex Gupta (1934) [4] .…”