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Your search keyword '"GEOCHRONOMETRY"' showing total 2 results
Start Over Descriptor "GEOCHRONOMETRY" Region california Publisher geological society of america
2 results on '"GEOCHRONOMETRY"'

1. In situ U-Pb ages of zircons from the Bishop Tuff: No evidence for long crystal residence times.

Author

Reid, M.R. and Coath, C.D.

Subjects
*URANIUM-lead dating, *GEOCHRONOMETRY, *ZIRCON
Abstract

Examines crystal residence times using in situ uranium-lead (U-Pb) dating of zircons from the Bishop Tuff in east-central California. Maximum mean crystal residence time for zircon; Analysis of zircons from fallout and intercalated ash-flow deposits and unpolished rims; Storage of Bishop Tuff rhyolite prior to eruption.

Published
2000
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2. Two diamictites, two cap carbonates, two delta13C excursions, two rifts: The Neoproterozoic...

Author

Labotka, Theodore C. and Bergfeld, Deborah

Subjects
*ROCKS, *GEOCHRONOMETRY, *PROTEROZOIC stratigraphic geology
Abstract

Comments on the evidence presented by Anthony R. Prave (1999) regarding the age of the Proterozoic Kingston Peak Formation in Death Valley, California. Sordough Limestone Member as one of carbonate units within Kingston Peak Formation; Comparison of data from Death Valley rocks with chemostratigraphic record from other Neoproterozoic rocks; Reply of Prave.

Published
2000
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