Journal article

Controls on skarn mineralization and alteration at the Cadia Deposits, New South Wales, Australia

DB Forster, PK Seccombe, D Phillips

ECONOMIC GEOLOGY AND THE BULLETIN OF THE SOCIETY OF ECONOMIC GEOLOGISTS | SOC ECONOMIC GEOLOGISTS, INC | Published : 2004

Abstract

The Cadia Fe-Cu-Au skarns in eastern New South Wales, Australia, are associated with the Late Ordovician, shoshonitic Cadia Intrusive Complex, which hosts the largest mineralized, intrusion-related system in eastern Australia. Both the Big Cadia and Little Cadia skarns are developed within a ∼40-m-thick volcanic-derived calcareous sandstone and adjacent units, which represent the most important control on skarn formation. The ore zones have undergone postore displacement along steeply dipping, predominantly reverse faults, without significant remobilization of ore. Chalcopyrite and minor native gold formed in intimate association with epidote > chlorite-quartz-calcite and in the interstices ..

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