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Oxygen isotope relationships in plutonic igneous rocks of the Peninsular Ranges Batholith, southern and Baja California

Taylor, Hugh P. and Silver, Leon T. (1978) Oxygen isotope relationships in plutonic igneous rocks of the Peninsular Ranges Batholith, southern and Baja California. In: Short papers of the Fourth International Conference, Geochronology, Cosmochronology, Isotope Geology, 1978. Open-file report (Geological Survey (U.S.)). No.78-701. U. S. Geological Survey , Reston, VA, pp. 423-426. https://resolver.caltech.edu/CaltechAUTHORS:20220812-154007495

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Abstract

Whole-rock δ¹⁸O values have been determined for 155 samples from approximately 140 plutons 1n the northern 600 km of the Peninsular Ranges batholith (fig. 1). Analyses of tonalites, granodiorites, gabbros and a few quartz monzonites are represented in crude proportion to the abundance of these rocks in the batholith. Host samples have been studied also for U-Pb zircon geochronology (Banks and Silver, 1968; Silver and others, 1968); K-Rb-Sr isotope and trace element systematics (Early and Silver, 1973); and rare earth element distributions (Gromet and Silver, 1977). All of these parameters display striking geographic regularities and profound transverse asymmetries related to the NNW-trending plutonic arc (Silver and others, 1975; Silver and Early, 1977).


Item Type:Book Section
Additional Information:© 1978 U. S. Geological Survey.
Series Name:Open-file report (Geological Survey (U.S.))
Issue or Number:78-701
Record Number:CaltechAUTHORS:20220812-154007495
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20220812-154007495
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:116269
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:12 Aug 2022 15:59
Last Modified:12 Aug 2022 15:59

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