Role of fluid mixing and fault-related sulfide in the origin of the Ray Point uranium district, south Texas
Economic Geology
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Abstract
The Lamprecht and Felder deposits are roll-type deposits hosted by the Miocene Oakville Sandstone. Four distinct stages of FeS 2 mineral formation are recognized: (1) a generation of isotopically light (delta 34 S < -20 per mil) preore pyrite, (2) a generation of isotopically light (delta 34 S < -20 per mil) marcasite that formed mostly before, but also during ore deposition, (3) a postore generation of isotopically heavy pyrite (delta 34 S > 0 per mil), and (4) a yet later generation of marcasite with isotopically light sulfur close to the values of stages 1 and 2. Complex zone of mixing between saline brines migrating up the fault from depth and oxygenated meteoric water recharging at the outcrop. Bacterial activity.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Role of fluid mixing and fault-related sulfide in the origin of the Ray Point uranium district, south Texas |
| Series title | Economic Geology |
| DOI | 10.2113/gsecongeo.78.6.1043 |
| Volume | 78 |
| Issue | 6 |
| Publication Date | October 01, 1983 |
| Year Published | 1983 |
| Language | English |
| Publisher | Society of Economic Geologists |
| Description | 21 p. |
| First page | 1043 |
| Last page | 1063 |