- Abstract:
-
Phenocryst zoning patterns are used to identify open-system magmatic processes in the products of the 2001 eruption of Shiveluch Volcano, Kamchatka. The lavas and pumices studied are hornblende-plagioclase andesites with average pre-eruptive temperatures of ∼840°C and fO2 of 1.5-2.1 log units above nickel-nickel oxide (NNO). Plagioclase zoning includes oscillatory and patchy zonation and sieve textures. Hornblendes are commonly unzoned, but some show simple, multiple or patchy zoning. Apatite...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1093/petrology/egl045
-
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- Journal:
- JOURNAL OF PETROLOGY
- Volume:
- 47
- Issue:
- 12
- Pages:
- 2303-2334
- Publication date:
- 2006-12-05
- DOI:
- EISSN:
-
1460-2415
- ISSN:
-
0022-3530
- URN:
-
uuid:76ab8e9d-7e34-4932-ba8c-88e88baa3f5d
- Source identifiers:
-
184845
- Local pid:
- pubs:184845
- Language:
- English
- Keywords:
- Copyright date:
- 2006
Journal article
Magma evolution and open-system processes at Shiveluch Volcano: Insights from phenocryst zoning
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