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Mineralogical and Chemical Characteristics of the Most Important Minerals in the Volcanic Rocks of the Kratovo - Zletovo Volcanic Area

By Violeta Stefanova, Todor Serafimovski and Rosen Nedelkov

Abstract

The Kriltovo-Zletovo volcanic aren, which is interesting from the aspect of its Te11iary magmatism, occupies the mid portions of the Lece-Halkidi metallogenic zone (CepacjmMoBcKH, 1990). Numerous deposits and occurrences of metallic and non-metallic mineral raw materi,lls nre spatinlly and paragenetically related t~ that magmatism. The paper presents the latest understanding on mineralogical and chemical characteristics of rocks and minerals in the volcnnic area. The results of the petrochemical studies point out pronounced calc-alkali mngmatism present :IS volcanic rocks such as dacite-andesite, andesite, latites, andesite-d:lcites etc. Study of individual mineralogical phases indicated that plagioclases are of the order of oligoclases, undesites, labrador, bitovnite, and anorthochtse. The study of potassium of feldspars indicated that they belong to the sanidine group. The clinopyroxenes are of the diopside whereas augite and biotites belong to the phlogopite-anitite series with slightly pronounced nature of phlogopite component

Topics: Other natural sciences
Publisher: Goce Delcev University
Year: 2007
OAI identifier: oai:eprints.ugd.edu.mk:1095

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