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Journal article

Magma evolution and open-system processes at Shiveluch Volcano: Insights from phenocryst zoning

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...

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Publication status:
Published

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Publisher copy:
10.1093/petrology/egl045

Authors


Humphreys, MCS More by this author
Blundy, JD More by this author
Sparks, RSJ More by this author
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:

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