Magnetite trace element characteristics and their use as a proximity indicator to the Avoca Tank Cu-Au prospect, Girilambone copper province, New South Wales, Australia

The Avoca Tank orebody is one of a series of copper-rich orebodies occurring within the Girilambone Cu province of central New South Wales. Mineralisation at Avoca Tank is hosted within several narrow, chloritic, greenschist-facies shear zones which developed ~430 Ma (U-Pb titanite) within metasedim...

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Veröffentlicht in:	Mineralium deposita 2024, Vol.59 (1), p.169-187
Hauptverfasser:	Simpson, Brenainn, Fitzherbert, Joel, Moltzen, Jake, Baillie, Ian, Cox, Brad, Huang, Huiqing
Format:	Artikel
Sprache:	eng
Schlagworte:	Abundance Chalcopyrite Chlorite Copper Copper ores Earth and Environmental Science Earth Sciences Gangue Geology Gold Greenschist facies Magnetic surveys Magnetite Mineral Resources Mineralization Mineralogy Nickel Ordovician Proximity Pyrite Recrystallization Sedimentary facies Shear Shear zone Shears Sills Sulfides Sulphides System effectiveness Ternary systems Titanite Titanium Trace elements Vanadium Zinc
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Zusammenfassung:	The Avoca Tank orebody is one of a series of copper-rich orebodies occurring within the Girilambone Cu province of central New South Wales. Mineralisation at Avoca Tank is hosted within several narrow, chloritic, greenschist-facies shear zones which developed ~430 Ma (U-Pb titanite) within metasedimentary rocks around the margins of an Ordovician (ca. 470 Ma) mafic sill complex. Mineralisation at Avoca Tank preserves an early oxide phase (sulfide barren) as magnetite-rich shears that are overprinted by a pyrite-chalcopyrite-rich sulfide phase. The mineralogical and chemical footprint surrounding sulfide mineralisation is narrow (
ISSN:	0026-4598 1432-1866
DOI:	10.1007/s00126-023-01204-9