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GEOREF RECORD

Geology of the Atacocha Mine, department of Pasco, Peru

Robert Francis Johnson
Geology of the Atacocha Mine, department of Pasco, Peru
Economic Geology and the Bulletin of the Society of Economic Geologists (May 1955) 50 (3): 249-270

Abstract

The lead-zinc ores of the Atacocha mine northeast of Cerro de Pasco, Peru, occur mainly as irregular replacement bodies and veins in Jurassic limestone and as galena-rich veins in Cretaceous sandstone. Mineralization is also found along contacts and in small fractures in Tertiary dacite which was emplaced following the main period of folding and strong faulting in the district. Much of the ore occurs near the axis of a small cross fold formed by drag along a major fault zone. The mineralogy of the ores indicates deposition at moderate to low temperatures and pressures.


ISSN: 0361-0128
EISSN: 1554-0774
Coden: ECGLAL
Serial Title: Economic Geology and the Bulletin of the Society of Economic Geologists
Serial Volume: 50
Serial Issue: 3
Title: Geology of the Atacocha Mine, department of Pasco, Peru
Pages: 249-270
Published: 195505
Text Language: English
Publisher: Economic Geology Publishing Company, Lancaster, PA, United States
Accession Number: 1955-002821
Categories: Economic geology of ore deposits
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. (incl. geol. sketch map)
S18°15'00" - N00°00'00", W81°10'00" - W70°00'00"
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States
Update Code: 1955
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