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Crystal chemistry of clinopyroxenes from Filicudi and Salina (Aeolian Islands, Italy); geothermometry and barometry

Carlo Malgarotto, Gianmario Molin and Pier Francesco Zanazzi
Crystal chemistry of clinopyroxenes from Filicudi and Salina (Aeolian Islands, Italy); geothermometry and barometry
European Journal of Mineralogy (October 1993) 5 (5): 915-923

Abstract

The diopsides and augites of the basalts and basaltic andesites of these islands have been studied by EPMA and XRD. The Filicudi clinopyroxenes are generally characterized by a smaller cell volume, suggesting a higher P of crystallization. A relationship between SiO (sub 2) content of magmas and clinopyroxene intracrystalline equilibration T is discussed in terms of different cooling history due to the more pronounced explosive character of the more silicic magmas, leading to more rapid quenching of eruption products. For a given rock type, clinopyroxene equilibration T is also a function of sample position in the volcanic sequence, to which different cooling rates can be assigned.


ISSN: 0935-1221
Serial Title: European Journal of Mineralogy
Serial Volume: 5
Serial Issue: 5
Title: Crystal chemistry of clinopyroxenes from Filicudi and Salina (Aeolian Islands, Italy); geothermometry and barometry
Affiliation: Universita di Perugia, Dipartimento di Scienze della Terra, Perugia, Italy
Pages: 915-923
Published: 199310
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Federal Republic of Germany
References: 15
Accession Number: 1993-041701
Categories: Mineralogy of silicates
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables
N38°19'60" - N38°49'60", E14°19'60" - E15°19'60"
Secondary Affiliation: Universita di Padova, ITA, Italy
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Mineralogical Abstracts, United KingdomTwickenhamUKUnited Kingdom
Update Code: 1993
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