Abstract
Several Alaskan-type complexes intrude metasedimentary rocks of the Cambro-Ordovician Girilambone Group near Fifield, New South Wales, Australia. These intermediate to ultramafic circular intrusives, emplaced during the Devonian, are composed of monzodiorite, gabbro-norite, clinopyroxenite, hornblendite, peridotite and dunite. Several types of PGE mineralization associated with these complexes are known. A new type described here occurs within pegmatoid, biotite- and magnetite-poor clinopyroxenites (“P-units”) which form irregular lenses and vein-like bodies within biotite- and magnetite-rich, fine grained clinopyroxenites. The mineralized "P-units" are not enriched in base metal sulphides with respect to the surrounding barren clinopyroxenites.
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