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Evolving magma storage conditions beneath Mount St. Helens inferred from chemical variations in melt inclusions from the 1980-1986 and current (2004-2006) eruptions

Abstract:

Major element, trace element, and volatile concentrations in 187 glassy melt inclusions and 25 groundmass glasses from the 1980-86 eruption of Mount St. Helens are presented, together with 103 analyses of touching Fe-Ti oxide pairs from the same samples. These data are used to evaluate the temporal evolution of the magmatic plumbing system beneath the volcano during 1980-86 and so provide a framework in which to interpret analyses of melt inclusions from the current (2004-2006) eruption. Majo...

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Institution:
University of Oxford
Division:
MPLS
Department:
Earth Sciences
Role:
Author
Journal:
US Geological Survey Professional Paper
Issue:
1750
Pages:
755-790
Publication date:
2008-01-01
ISSN:
1044-9612
Language:
English
Pubs id:
pubs:344709
UUID:
uuid:3e41d3a3-4ab5-4569-a1ee-adc7ee2f2b91
Local pid:
pubs:344709
Source identifiers:
344709
Deposit date:
2013-11-16

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