Surface-water influx in shallow-level Archean lode-gold deposits in Western Australia

S.G. Hagemann, M. Gebre-Mariam, David Groves

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

Archean shallow-level lode-gold deposits in Western Australia are located in rocks of prehnite-pumpellyite to lower greenschist facies and are characterized by (1) predominantly brittle shear zones that formed well after volcanism and late in the structural history, (2) breccia-hosted lodes, (3) low-temperature ore and gangue minerals such as silver sulfosalts, stibnite, and precursor chalcedony, and (4) vertical metal zonation of the orebodies. Ore-fluid temperatures ranged from 150 to 325-degrees-C, and a depth of emplacement of
Original languageEnglish
Pages (from-to)1067-1070
JournalGeology
Volume22
DOIs
Publication statusPublished - 1994

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