Nature and evolution of metamorphic fluids associated with turbidite- hosted gold deposits

Hill End Goldfield, NSW, Australia

P. K. Seccombe, J. Lu, A. S. Andrew, B. L. Gulson, K. J. Mizon

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The Hill Goldfield, NSW, Australia, is an example of a syntectonic, slate-belt gold deposit formed in a multiply deformed, Late Silurian slate-metagreywacke turbidite sequence. Gold is confined to bedding-parallel veins and discordant leader veins composed of as many as four generations of quartz, accompanied by phyllosilicates, carbonates and minor sulphides. Vein formation and gold deposition was apparently synchronous with Early Carboniferous metamorphism and deformation. Homogenisation temperatures (Th) for fluid inclusions in vein quartz demonstrate five groupings in the temperature intervals 350-280°C, 280-250°C, 250-190°C 190-150°C, and 150-110°C, corresponding to a variety of primary and secondary inclusions developed during four periods of vein quartz deposition under a generally declining temperature regime. -from Authors

Original languageEnglish
Pages (from-to)423-436
Number of pages14
JournalMineralogical Magazine
Volume57
Issue number3
Publication statusPublished - 1993
Externally publishedYes

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