Magmatic Na-rich phlogopite in a suite of gabbroic crustal xenoliths from Volcán San Pedro, Chilean Andes : evidence for a solvus relation between phlogopite and aspidolite
Magmatic Na-rich phlogopite (1–5 wt% Na2O) is present as a late-crystallizing mineral in two groups of texturally and mineralogically distinct gabbroic xenoliths at Volcán San Pedro (36°S, Chile), an Andean arc volcano. Phlogopites are characterized by high 100·Mg/(Mg + Fe) (up to 83) and high Cr2O3...
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Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
2012
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Online Access: | https://hdl.handle.net/10356/95483 http://hdl.handle.net/10220/8721 http://ammin.geoscienceworld.org.ezlibproxy1.ntu.edu.sg/content/86/1-2.toc |
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Institution: | Nanyang Technological University |
Language: | English |