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Genetic implications, composition, and structure of trioctahedral micas in xenoliths related to Plinian eruptions from the Somma-Vesuvius volcano (Italy)
- Source :
- American Mineralogist (De Gruyter); March 2024, Vol. 109 Issue: 3 p556-573, 18p
- Publication Year :
- 2024
-
Abstract
- The present work is part of a systematic mineralogical and petrographic characterization of mica-bearing xenoliths from Somma-Vesuvius volcano (Roman Magmatic Province, southern Italy). Skarns, composite skarns-marbles and cumulates from Pompeii Plinian eruption (AD 79), and skarns and syenite from Avellino eruption (3945 ± 10 cal yr BP) were investigated to define the crystal chemistry of the Somma-Vesuvius trioctahedral micas and to draw inferences on petrogenetic processes to which they were subjected. Xenoliths were characterized by means of polarized optical microscopy, scanning electron microscopy (SEM-EDS), X-ray powder diffraction (XRPD), and bulk-rock geochemical analyses. Mica crystals were studied using electron microprobe analysis (EMPA) and single-crystal X-ray diffraction (SCXRD).
Details
- Language :
- English
- ISSN :
- 0003004X and 19453027
- Volume :
- 109
- Issue :
- 3
- Database :
- Supplemental Index
- Journal :
- American Mineralogist (De Gruyter)
- Publication Type :
- Periodical
- Accession number :
- ejs65733853
- Full Text :
- https://doi.org/10.2138/am-2022-8782