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Molong - Sofala Igneous Subprovince

Entity ID: 20364 Compiled by: Liu, S.F. and Bain, J.H.C. Year: 2002 Status: Informal

Last Revised: 2013

Rank: subprovince Type: igneous Subtype: mixed intrusive/extrusive Location: NSW On-shore

Synonyms: NA Symbol: NA

Minimum age: Llandovery Age method: biozone

Maximum age: Early Ordovician Age method: inferred, biostratigraphic correlation

Summary: The Molong - Sofala Igneous Subprovince forms the eastern part of the Ordovician Macquarie Igneous Province, and contains predominantly mafic-intermediate volcanic and volcaniclastic rocks with some ultramafic volcanic and intrusive rocks formed in an island arc environment in central New South Wales. The subprovince hosts the Cadia Cu-Au porphyry deposit.

Attributes:
State: NSW
Resources: Copper
porphyry copper-gold
Resources: Gold
vein gold (and derived younger placer deposits)
Country: AUS
Igneous crystalline rocks - volcanic: basaltic
Igneous crystalline rocks - volcanic: andesitic
Mafic composition: calc-alkaline
Mafic composition: shoshonite
Mafic composition: M (mantle)

Parent: Macquarie Igneous Province

Child Provinces: No data

Relationships:
Underlies - Sydney Basin

Constituent units: Cabonne Group, Junction Reefs Monzodiorite, Marangulla Syenite, Tettenhall Monzodiorite, Errowan Monzonite, Tallwood Monzodiorite, Rowen Brae Porphyry, Cadiangullong Porphyry, Millamolong Porphyry, Crowther Monzodiorite, Cadia Intrusive Complex, Cadia Hill Monzonite, Wuuluman Granite, Umagarlee Monzodiorite, Cowra Granodiorite, Young Granodiorite, Mount Misery Granite, Eugowra Granite, Broula Granite, Dulladerry Volcanics, Kenilworth Group (consists of the Walli Volcanics, Kenyu Fm, Coombing Fm and Triangle Fm), Forest Reefs Volcanics, Canowindra Volcanics, Goonigal Group, Kenyu Formation, Wyangala Supersuite, Carcoar Granodiorite, Burranah Formation, Sofala Volcanics, Rockley Volcanics, Cadia Hill Monzonite intrusive suite, Glendale Quartz Monzonite, Fernside Monzodiorite, Moorilda Monzonite, Big Box Hill Syenite, Stokefield Metagabbro, Swallow Creek Porphyry, Angullong Formation, Millthorpe Volcanics, Byng Volcanics, Copper Hill Suite, Mitchell Formation, Blayney Volcanics, Fairbridge Volcanics, Cargo Volcanics, Walli Volcanics, Mount Pleasant Basalt Member, Bundella Syenite, Glen Ayr Syenite, Tunbridge Wells Diorite

Events: Benambran Orogeny

Mineral Deposits: Lucknow, Lucky Draw, Cargo, Mitchells Creek, Sofala-Wattle Flat, Sheahan-Grants, Cadia Hill

Key Reference: Pogson, D.J., Watkins, J.J. 1998, Bathurst 1:250 000 geological Sheet. SI/55-8: Explanatory Notes., Australian Geological Survey Organisation and Geological Survey of New South Wales, SI/55-8, (Refid:23214)

Comments: Includes the Molong and Rockley-Gulgong belts of the Ordovician Macquarie Arc

Overview: No data

Images: No data

Other media: No data

Source Information:

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This report was generated on Friday, October 3, 2014 12:53:00 AM EST.