Environments of generation of some base-metal ore deposits
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Abstract
The origin of the ore fluids, their dissolved constituents, the force that drives them, and the causes for deposition of their constituents are reviewed for five districts: Providencia, Mexico; Mississippi Valley (Pb-Zn); Salton Sea geothermal system; Red Sea geothermal system; Nonesuch Shale, Michigan. The compositions (chemical and isotopic) and temperatures, determined directly for brines and from fluid inclusions for ancient deposits, reveal significant differences between the Providencia deposit (close magmatic affiliations) and the others, in which connate water and constituents dissolved from country rock appear to be important. Deposits formed by complex processes, with multiple sources for materials, may well be more common than simple 'end-member' deposits.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Environments of generation of some base-metal ore deposits |
| Series title | Economic Geology |
| DOI | 10.2113/gsecongeo.63.4.301 |
| Volume | 63 |
| Issue | 4 |
| Year Published | 1968 |
| Language | English |
| Publisher | Society of Economic Geologists |
| Description | 35 p. |
| First page | 301 |
| Last page | 335 |
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