Browse wiki

From Open Energy Information

ESR Dating of Quartz Phenocrysts in the El Cajete and Battleship Rock Members of Valles Rhyolite, Valles Caldera, New Mexico
Abstract The electron spin resonance (ESR) dating m
The electron spin resonance (ESR) dating method was employed on quartz phenocrysts separated from pumice of the El Cajete and Battleship Rock Members of the Valles Rhyolite in the Valles caldera, New Mexico. The results of heating experiments indicate that Ti impurity centers have two components; a thermally stable one and a less stable, temperature sensitive one. ESR dates using the stable Ti center yield eruption ages of 59 &plusmin; 6 ka for the Battleship Rock Member and 53 &plusmin; 6 ka for the El Cajete Member while recent 14C dates (S. Reneau and J. Gardner, unpub. data) from carbonized logs in the El Cajete pumice indicate that its age is older than 50 ka. Our results indicate that volcanism in the Valles caldera is much younger than previously thought (� 130 ka) and that recent revisions to the post-0.5 Ma stratigraphy of Valles caldera are probably in error. The results suggest that ESR dating of quartz may be a useful method for obtaining ages of units in other Quaternary volcanic areas.
units in other Quaternary volcanic areas.  +
Author Shin Toyoda  + , Fraser Goff  + , Sumiko Ikeda  + , Motoji Ikeya  +
Citation Shin Toyoda,Fraser Goff,Sumiko Ikeda,Motoji Ikeya. 1995. [[ESR Dating of Quartz Phenocrysts in the El Cajete and Battleship Rock Members of Valles Rhyolite, Valles Caldera, New Mexico]]. Journal of Volcanology and Geothermal Research. 67(1):29-40.  +
Document type Journal Article  +
Foaf/Page http://www.sciencedirect.com/science/article/pii/037702739400093V  +
Link http://www.sciencedirect.com/science/article/pii/037702739400093V  +
Name ESR Dating of Quartz Phenocrysts in the El Cajete and Battleship Rock Members of Valles Rhyolite, Valles Caldera, New Mexico  +
PublicationDate 1995  +
Publisher Journal of Volcanology and Geothermal Research  +
ReferenceGenre Geothermal  +
Has query
"Has query" is a predefined property that represents meta information (in form of a subobject) about individual queries and is provided by Semantic MediaWiki.
ESR Dating of Quartz Phenocrysts in the El Cajete and Battleship Rock Members of Valles Rhyolite, Valles Caldera, New Mexico + , ESR Dating of Quartz Phenocrysts in the El Cajete and Battleship Rock Members of Valles Rhyolite, Valles Caldera, New Mexico + , ESR Dating of Quartz Phenocrysts in the El Cajete and Battleship Rock Members of Valles Rhyolite, Valles Caldera, New Mexico + , ESR Dating of Quartz Phenocrysts in the El Cajete and Battleship Rock Members of Valles Rhyolite, Valles Caldera, New Mexico + , ESR Dating of Quartz Phenocrysts in the El Cajete and Battleship Rock Members of Valles Rhyolite, Valles Caldera, New Mexico +
Categories References , Geothermal References , Reference Materials
Modification date
"Modification date" is a predefined property that corresponds to the date of the last modification of a subject and is provided by Semantic MediaWiki.
14:54:02, 22 May 2014  +
hide properties that link here 
Fenton Hill HDR Geothermal Area + , Valles Caldera - Redondo Geothermal Area + , Valles Caldera - Sulphur Springs Geothermal Area + ReferenceForToyodaGoffIkedaIkeya1995
At Valles Caldera - Sulphur Springs Geothermal Area (Toyoda, Et Al., 1995) + Reference material
 
Enter the name of the page to start browsing from.