Quartz - sericite mylonite, Calamita, Elba
by Samuele Papeschi, University of Pisa, Pisa, Italy
Concomitant thrusting and magmatism resulted in the development of ductile mylonites in the Calamita Schists, part of the contact aureole of the Late Miocene Porto Azzurro pluton. This mylonite is made up of stretched and recrystallized quartz layers, interlayered with thin sericite-rich levels. Sericite resulted from the crushing of contact-metamorphic minerals such as andalusite, cordierite, and K-feldspar.
Field of View: about 2 mm
Polarized light - crossed polars
Related paper: https://doi.org/10.1029/2019GC008270
Taken on 13
February
2017
Submitted on 09 May 2020
Categories
- Earth Magnetism & Rock Physics (337)
- Field (2693)
- Geochemistry, Mineralogy, Petrology & Volcanology (831)
- Geodynamics (353)
- Laboratory (101)
- Tectonics and Structural Geology (523)
Location
- Europe (3400)
- Southern Europe (1465)
- Italy (367)
- Exact location (10.3824 E, 42.7155 N)
Tags
quartz, italy, thin section, mylonite, elba, deformation, calamita schists, recrystallization, microstructure, sericite
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Credit: Samuele Papeschi (distributed via imaggeo.egu.eu)
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