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Title: Twin Hills and Mount Gunyan silver deposits
Contributor(s): Halloran, Davina (author); Ashley, Paul (author); Cooke, Jessie (author)
Publication Date: 2017
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Abstract: The Twin Hills and Mt Gunyan deposits are located approximately 230 km SW of Brisbane. The Twin Hills deposit (-28.85°, 151.26°) is approximately 8 km east of Texas, with Mt Gunyan a farther 4.5 km north-east of Twin Hills. The 2010 JORC Resource for Twin Hills Vias 9.5 Mt grading 53.8 g/t Ag for 16.4 Moz of contained silver at a cut-off grade of 26.5 g/t Ag, with an Inferred Mineral Resource for Mt Gunyan of 2.3 Mt grading at 69 g/t Ag for 5.19 Moz of silver. Twin Hills and Mt Gunyan were discovered during regional exploration to locate further silver mineralisation proximal to the significant Silver Spur deposit. The deposits lie within the Silver Spur beds, contained within the Early Permian Silver Spur Basin, whid1 unconformably overlies the Carboniferous Texas beds (Donchak et nl, 2007).
Publication Type: Entry In Reference Work
Source of Publication: Australian Ore Deposits, v.32, p. 725-728
Publisher: The Australasian Institute of Mining and Metallurgy
Place of Publication: Melbourne, Australia
ISBN: 9781925100686
Field of Research (FOR): 040307 Ore Deposit Petrology
HERDC Category Description: N Entry In Reference Work
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Appears in Collections:Entry In Reference Work
School of Environmental and Rural Science

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