Geochemistry and Classification of Amphibolites and Related Rocks

Abstract

Amphibolites from several localities have been studied chemically. The rocks were spectrographically analyzed for Cr, V, Ni, Co, Sc, Zr, Sr, and Ba and major element analyses were done on 20 amphibolites, sediments, and igneous rocks. The chemistry of sediments and igneous rocks which right isochemically metamorphose to amphibolite has been studied. Discriminant function analyses were performed on major and minor elements, to classify rocks of known and unknown origins.