Aniruddha Mitra

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Questions related from Aniruddha Mitra

Does the stability of the Ti-bearing minerals (eg., Titanite, rutile, ilmenite, low-Mg amphibole) vary with pressure? If yes, then how?

During the melting of a metabasaltic rock at variable depths, the Ti budget in the anatectic granitic/intermediate melt is determined by the presence of Ti bearing minerals like Titanite, rutile,...

16 December 2021 9,458 3 View

How to distinguish between a magmatic and a secondary amphibole in Granite gneiss?

Firstly, I am looking for some petrographic criteria to identify magmatic amphibole in meta-granite/granite gneiss? Secondly, I know amphiboles are often prone to re-equilibration. So is there...

18 July 2019 3,306 3 View

How to distinguish between a primary and a secondary biotite?

By primary I mean the magmatic ones, whereas secondary biotite are those formed by metamorphic activity or during late magmatic stages as a result of re- equilibration.

05 June 2019 9,255 26 View