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Abstract
A review of the calderas in the San Juan volcanic field, southwestern Colorado, indicates that lead, zinc, copper, gold, and silver mineralization took place in and near calderas which had complex histories of postsubsidence intrusive and extrusive igneous activity. Most known ore occurs in veins that follow fractures formed during the different caldera cycles, but some intrusive bodies were extensively mineralized and possibly may host disseminated, porphyry-type deposits. The mineral deposits seem to be related most commonly to the youngest and most highly differentiated late intrusives of a caldera cycle.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Relation of mineralization to calderas in the San Juan volcanic field, southwestern Colorado |
| Series title | Journal of Research of the U.S. Geological Survey |
| Volume | 2 |
| Issue | 4 |
| Year Published | 1974 |
| Language | English |
| Publisher | U. S. Geological Survey |
| Description | 5 p. |
| First page | 405 |
| Last page | 409 |
| Country | United States |
| State | Colorado |
| Other Geospatial | San Juan volcanic field |
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