Yiddah

Porphyry copper (Cu-Au) deposit in New South Wales, Australia

Names and other identifiers

GMRAP ID 4074
Alternate names Temora Project
Tract name Macquarie (009pCu8002)
Site status deposit

Geographic location

Country Australia
State or province New South Wales
Geographic location 147.3344, -34.0465
Geologic map unit 147.3344, -34.0465
Nearby data

Geologic information

Deposit type Porphyry copper
Deposit subtype Cu-Au
Age (Ma) 436.4Ma
Age determination method Inferred from U-Pb zircon age of intrusion at Gidginbung
Age range 436.4 ±3.1 Ma
Age reference Lawrie and others (2007)
Minerals albite, actinolite, biotite, carbonate, chalcopyrite, chlorite, epidote, hematite, K-feldspar, magnetite, pyrite, sericite
Associated rocks mafic to intermediate volcanic and volcaniclastic rocks of the Ordovician Narragudgil, Gidginbung, and Temora Volcanics, diorite to monzodiorite stocks, plugs, and dikes
Tectonic setting island arc
Stratigraphic age Early Silurian

Commodity and development information

Development status Prospect
Major commodities Cu
Minor commodities Au
Trace commodities Mo
Tonnage (Mt) 61Mt
Cu grade (%) 0.35%
Mo grade (%) 0.0038%
Au grade (g/t) 0.13g/t
Contained copper 210,000t
Gold-Moly ratio 34

Reference information

Comments Location, tonnage and grade of inferred resources from Geoscience Australia (2010). Porphyry Cu-Au mineralization related to porphyritic monzodioritic stocks, plugs and dikes. Locally overprinted by albite-sericite-pyrite assemblage associated with Devonian orogenic gold veins.
Study area name Australia
References Lawrie and others (2007); Mowat (2007); Goldminco Corp. (2008); Geoscience Australia (2010); Munro (2010); Perkins and others (1995)
Site reference Bookstrom and others (2014)
Geoscience Australia, 2010, Australian mines atlas: Geoscience Australia Web page accessed October 20–December 27, 2010, at http://www.australianminesatlas.gov.au/.Goldminco Corp., 2008, Goldminco acquires ground along strike from the Dam porphyry copper-gold deposit, at its 100% owned Temora project: Goldminco Corp. press release, 2008, 1 p., accessed October 2010, at http://www.goldminco.com/images/stories/newsrelease/2008/Goldminco_acquires_ground_along_strike_from_the%20_DAM_Porphyry_Coopper-Gold_Deposit,_at_its_100_owned_Temora_Project_%2120080229.pdf. (Accessed September 3, 2013, at http://www.stockhouse.com/companies/bullboard/delisted/delisted-companies?postid=14585106.)Lawrie, K.C., Mernagh, T.P., Ryan, C.G., van Achterbergh, E., and Black, L.P., 2007, Chemical fingerprinting of hydrothermal zircons—An example from the Gidginbung high sulphidation Au-Ag-(Cu) deposit, New South Wales, Australia: Proceedings of the Geologists’ Association, v. 118, p. 37–46. (Also available at http://dx.doi.org/10.1016/S0016-7878(07)80045-9.)Mowat, Bruce, 2007, Characteristics of porphyry copper-gold mineralization in the Gidginbung Volcanics, in Mines and Wines Symposium—Mineral Exploration in the Tasmanides, Orange, New South Wales, September 20–21, 2007, Proceedings: Sydney Mineral Exploration Discussion Group presentation, 24 p., and AIG Bulletin 46, p. 107–112, accessed September 3, 2013, at http://smedg.org.au/M&W07/Bruce%20Mowat%20-%20Gidginbung%20Volcanics%20porphyry%20Cu-Au.pdf.Munro, Scott, 2010, Developments at Goldminco's Temora exploration project: Sydney Mineral Exploration Discussion Group (SMEDG)-Australian Institute of Geoscientists (AIG)-New South Wales Geological Survey Mines and Wines Symposium, Mudgee, New SouthWales, September 23–24, 2010 [Proceedings], [14] p., accessed September 16, 2013, at http://smedg.org.au/M&W%202010/Munro%20Goldminco%20Temora.pdf.Perkins, Caroline, Walshe, J.L., and Morrison, Gregg, 1995, Metallogenic episodes of the Tasman fold belt system, eastern Australia: Economic Geology, v. 90, p. 1443–1466. (Also available at http://dx.doi.org/10.2113/gsecongeo.90.6.1443.)