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Strontium isotopes in carbonate deposits at Crater Flat, Nevada

Conference ·
OSTI ID:138092
Strontium isotope studies of carbonates from soils, veins, eolian dust and Paleozoic basement samples near Crater Flat, southwest of Yucca Mountain, provide evidence for the origins of these materials. Vein and soil carbonates have nearly identical ranges of {sup 87}Sr/{sup 86}Sr ratios at the lower end of the pedogenic range. The average {sup 87}Sr/{sup 86}Sr of Paleozoic basement from Black Marble Hill is similar to the {sup 87}Sr/{sup 86}Sr in the eolian dust, perhaps indicating a local source for this material. Possible spring deposits have generally higher {sup 87}Sr/{sup 86}Sr than the other carbonates. These data are compared with similar data from areas east of Yucca Mountain. 7 refs., 5 figs.
Research Organization:
Geological Survey, Denver, CO (United States)
Sponsoring Organization:
USDOE, Washington, DC (USA)
DOE Contract Number:
AI08-78ET44802
OSTI ID:
138092
Report Number(s):
CONF-910435--77; ON: DE91011936
Country of Publication:
United States
Language:
English