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Low-^(18)O meteoric-hydrothermal signatures in groundmass and fiamme of fossil fumaroles of the 0.76 Ma Bishop Tuff, California

Holt, Elizabeth Warner and Taylor, Hugh P., Jr. (1996) Low-^(18)O meteoric-hydrothermal signatures in groundmass and fiamme of fossil fumaroles of the 0.76 Ma Bishop Tuff, California. Eos, 77 (46). p. 775. ISSN 0096-3941. http://resolver.caltech.edu/CaltechAUTHORS:20130820-102425104

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Abstract

A 150-m thick δ^(18)O profile of whole-rock (WR) samples from an area of fossil fumaroles in the Bishop tuff at Owens River Gorge shows a low-^(18)O horizon sandwiched between an essentially unwelded upper portion and a densely-welded lower part displaying magmatic ^(18)O/^(16)O (see figure). Shallow-dipping columnar joints (sdcj) are correlative with the low-^(18)O horizon, the base of which is extremely sharp (~3 per mil per meter).


Item Type:Article
Additional Information:© 1996 American Geophysical Union.
Record Number:CaltechAUTHORS:20130820-102425104
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130820-102425104
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:40733
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 Sep 2013 19:56
Last Modified:11 Nov 2014 23:40

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