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Pliocene intrusive rocks and mineralization near Rico, Colorado

Economic Geology

By:
, , ,
DOI: 10.2113/gsecongeo.75.1.122

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Abstract

Fission-track and potassium-argon studies of intrusive rocks in the vicinity of Rico, Colorado, have shown that there are at least two periods of igneous activity and that significant ore mineralization is associated with alaskites and latites that are 3 to 5 m.y. old. Discordant fission track ages of apatite and zircon in the older rocks reveal a major heat source that cooled in late Miocene or early Pliocene and is centered under the mineralized rocks near the townsite of Rico. This heating may indicate the presence of a buried stock that is related to the mineralization.

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Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Pliocene intrusive rocks and mineralization near Rico, Colorado
Series title:
Economic Geology
DOI:
10.2113/gsecongeo.75.1.122
Volume
75
Issue:
1
Year Published:
1980
Language:
English
Publisher:
Society of Economic Geologists
Description:
12 p.
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Economic Geology
First page:
122
Last page:
133
Country:
United States
State:
Colorado
City:
Rico