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The Relief Canyon gold deposit, Nevada: a mineralized solution breccia

Economic Geology

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Abstract

The Relief Canyon gold deposit in the Humboldt Range of western Nevada is a low-grade, high-tonnage orebody of Tertiary or younger age. The host rocks include limestones of the Triassic Cane Spring Formation, which are overlain by shales of the Triassic Grass Valley Formation. Gold, fluorite, pyrite, silver, calcite, and fine-grained silica are the principal hydrothermal minerals in the deposit. The deposit formed at a relatively shallow depth. On the basis of fluid inclusion data, late-stage hydrothermal fluids related to gold and fluorite deposition were extremely dilute and had temperatures near 200??C. The fluid inclusions in fluorite show no evidence for boiling, but porous crackle breccias in the jasperoids suggest that hydrobrecciation took place. -from Author

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
The Relief Canyon gold deposit, Nevada: a mineralized solution breccia
Series title:
Economic Geology
Volume
84
Issue:
2
Year Published:
1989
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Economic Geology
First page:
279
Last page:
290
Number of Pages:
12