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Rear-arc vs. arc-front volcanoes in the Katmai reach of the Alaska Peninsula: A critical appraisal of across-arc compositional variation

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Rear-arc vs. arc-front volcanoes in the Katmai reach of the Alaska Peninsula: A critical appraisal of across-arc compositional variation; 2004; Article; Journal; Contributions to Mineralogy and Petrology; Hildreth, W.; Fierstein, J.; Siems, D. F.; Budahn, J. R.; Ruiz, J.

Summary

Physical and compositional data and K-Ar ages are reported for 14 rear-arc volcanoes that lic 11-22 km behind the narrowly linear volcanic front defined by the Mount Katmai-to-Devils Desk chain on the Alaska Peninsula. One is a 30-km3 stratocone (Mount Griggs; 51-63% SiO2) active intermittently from 292 ka to Holocene. The others are monogenetic cones, domes, lava flows, plugs, and maars, of which 12 were previously unnamed and unstudied; they include seven basalts (48-52% SiO2), four mafic andesites (53-55% SiO2), and three andesite-dacite units. Six erupted in the interval 500-88 ka, one historically in 1977, and five in the interval 3-2 Ma. No migration of the volcanic front is discernible since the late Miocene, so even the older [...]

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Harvested on Mon Jul 21 13:51:36 MDT 2014 from MODS XML Service

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Type Scheme Key
local-index unknown 70027267
local-pk unknown 70027267
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1007/s00410-004-0558-2
series unknown Contributions to Mineralogy and Petrology

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journalContributions to Mineralogy and Petrology
parts
typevolume
value147
typeissue
value3
languageEnglish
citationTypeArticle

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