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U and Sr Isotopes in ground water and calcite, Yucca Mountain, Nevada: Evidence against upwelling water

Science

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Abstract

Hydrogenic calcite and opaline silica deposits in fault zones at Yucca Mountain, Nevada, have created considerable public and scientific controversy because of the possible development of a high-level nuclear waste repository at this location. Strontium and uranium isotopic compositions of hydrogenic materials were used to test whether the veins could have formed by upwelling of deep-seated waters. The vein deposits are isotopically distinct from ground water in the two aquifers that underlie Yucca Mountain, indicating that the calcite could not have precipitated from ground water. The data are consistent with a surficial origin for the hydrogenic deposits.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
U and Sr Isotopes in ground water and calcite, Yucca Mountain, Nevada: Evidence against upwelling water
Series title:
Science
Volume
254
Issue:
5031
Year Published:
1991
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
551
Last page:
554
Number of Pages:
4