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Cadia East Deposit

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Journal Article
Journal: Economic Geology
Published: 01 January 2007
Economic Geology (2007) 102 (1): 3-26.
...Alan J. Wilson; David R. Cooke; Holly J. Stein; C. Mark Fanning; John R. Holliday; Ian J. Tedder Abstract The Cadia district, located in the eastern Lachlan fold belt of New South Wales, Australia, comprises four gold-copper porphyry deposits (Ridgeway, Cadia Quarry, Cadia Hill, and Cadia East...
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Journal Article
Journal: Economic Geology
Published: 01 June 2004
Economic Geology (2004) 99 (4): 761-788.
..., and the higher grade Ridgeway deposit 2 km to the northwest, which exploits a stockwork of quartz-sulfide veins within and adjacent to pipelike intrusions of monzonite and quartz monzonite. In addition, several other mineralized porphyry systems are present within the mining district, including Cadia East...
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Journal Article
Journal: Economic Geology
Published: 17 May 2019
Economic Geology (2019)
...Cassady L. Harraden; Matthew J. Cracknell; Lett James; Ron F. Berry; Ronell Carey; Anthony C. Harris Abstract The Cadia East porphyry deposit, located approximately 20 km south of Orange, New South Wales, Australia, contains a significant resource of copper and gold. This resource is hosted within...
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Journal Article
Journal: Economic Geology
Published: 01 June 2014
Economic Geology (2014) 109 (4): 1117-1135.
... Reefs Volcanics host the Au-rich Ridgeway and the giant Au-Cu Cadia East deposits. Geologic studies of the Cadia district have focused on the nature of the Au and Cu alkalic porphyry deposits and associated skarn mineralization (e.g., Harper, 2000 ; Holliday et al., 2002 ; Wilson, 2003 ; Wilson et...
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Journal Article
Journal: Geology
Published: 01 September 2015
Geology (2015) 43 (9): 811-814.
...Nathan Fox; David R. Cooke; Anthony C. Harris; Dean Collett; Graeme Eastwood Abstract Located in the accreted remnants of the Ordovician Macquarie Arc (Australia), Cadia East is the largest alkalic porphyry Au-Cu deposit currently known. The deposit is centered on a 2-km-long, northwest-trending...
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Journal Article
Journal: Economic Geology
Published: 01 May 2012
Economic Geology (2012) 107 (3): 553-554.
... Mines: A Mining Success Story is a comprehensive account of the discovery, evaluation, development, and operation of a series of gold-copper orebodies that today comprise Newcrest Mining Limited’s Cadia Valley operations. This is a globally significant cluster of porphyry-style ore deposits hosting...
Journal Article
Journal: Economic Geology
Published: 01 January 2005
Economic Geology (2005) 100 (1): 177-178.
...-potassic alteration assemblages that are related to porphyry systems such as Ridgeway. However, at both Ridgeway and the nearby Cadia East deposit ( Tedder et al., 2001 ), in addition to the Goonumbla porphyry deposits, which are also related to similar-aged Ordovician volcano intrusive complexes west...
Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2013
DOI: 10.5382/SP.17.11
EISBN: 9781629491639
... deposits. The gold-rich alkalic porphyry and epithermal deposits formed in and along the margin of sedimentary basins that were intruded by alkalic dikes and stocks. In the largest example (Cadia East), deep mineralization is hosted by sheeted quartz-sulfide veins associated with potassic alteration...
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Journal Article
Journal: Economic Geology
Published: 01 December 2003
Economic Geology (2003) 98 (8): 1637-1666.
... and lesser sandstone intercalated with minor fossiliferous limestone unconformably overlie the Cadia Hill and Cadia East-Far East deposits ( Fig. 2 ). These sedimentary rocks are either part of the early-middle Llandovery-age Cadia Coach Shale unit ( Jenkins, 1978 ) or the Piřídolí-age Wallace...
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Journal Article
Journal: Economic Geology
Published: 01 August 2013
Economic Geology (2013) 108 (5): 1185-1193.
... Reserves and Mineral Resources for the Cadia Valley Group Deposit Ore type Mt ore g/t Au % Cu g/t Ag kt Cu t Au Other 1 Porphyry 560 0.38 0.15 nd 838.0 212.4 Ridgeway/Ridgeway Deeps Porphyry 148.1 0.71 0.37 543.6 104.4 Cadia East Porphyry 2,300 0.44 0.29 6,560...
FIGURES
Journal Article
Journal: Geology
Published: 01 December 2003
Geology (2003) 31 (12): 1073-1076.
... Gondwana in response to subduction zone lock-up following arc collision ca. 455 Ma. World-class porphyry copper gold deposits (e.g., Cadia) formed in the backarc during extension and magmatism associated with slab rollback. Upwelling of the asthenosphere also provided the heat engine for generation...
FIGURES
Series: Special Publications of the Society of Economic Geologists
Published: 01 January 2014
DOI: 10.5382/SP.18.07
EISBN: 9781629499291
... to porphyries hosted by basaltic rocks (e.g., Cadia, NSW, Wilson et al., 2003 ) Laumontite CaAl 2 Si 4 O 12 ^4(H 2 O) Outer propylitic (chlorite subzone) Laumontite and other zeolites (e.g., chabazite) are low-temperature distal propylitic alteration products in porphyry deposits hosted by mafic rocks...
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Journal Article
Journal: Economic Geology
Published: 01 June 2019
Economic Geology (2019) 114 (4): 771-786.
... Orogenic gold     11 Belousov et al., 2016 Anniversary deposit central, Canada SEDEX     44 Gadd et al., 2016 Anniversary deposit east, Canada SEDEX     15 Gadd et al., 2016 OP, Canada SEDEX     7 Gadd et al., 2016 Alum shale, Sweden Sedimentary pyrite     28...
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Series: Economic Geology
Published: 01 January 2005
DOI: 10.5382/AV100.10
EISBN: 9781934969519
... Abstract Porphyry deposits arguably represent the most economically important class of nonferrous metallic mineral resources. These magmatic-hydrothermal deposits are characterized by sulfide and oxide ore minerals in vein-lets and disseminations in large volumes of hydrothermally altered rock...
Journal Article
Journal: Economic Geology
Published: 01 June 2014
Economic Geology (2014) 109 (4): 1079-1115.
... of the Cowal Igneous Complex in the Junee-Narromine belt, and Cadia district in the Molong belt ( Cooke et al., 2007 ; Fig. 1 ). The porphyry deposits were related to alkaline monzonitic stocks and pipes that were emplaced during the waning stages of the Macquarie Arc (445–438 Ma; Crawford et al., 2007b...
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Journal Article
Journal: Economic Geology
Published: 01 June 2014
Economic Geology (2014) 109 (4): 859-890.
... in British Columbia. Examples of silica-oversaturated alkalic systems include the Cadia district in New South Wales and the Mars deposit in the Yukon ( Lang et al., 1993 , 1995a ; Lang and McClaren, 2003 ). The silica-undersaturated alkalic porphyry Cu-Au deposits of British Columbia are unusual when...
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Journal Article
Journal: Economic Geology
Published: 01 March 2015
Economic Geology (2015) 110 (2): 557-574.
... . Calagari A.A. , 2004 , Fluid inclusion studies in quartz veinlets in the porphyry copper deposit at Sungun, East-Azarbaidjan, Iran : Journal of Asian Earth Sciences , v. 23 , p. 179 – 189 . Chaussidon M. Albarede F. Sheppard S.M.F. , 1989 , Sulphur isotope variations...
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Journal Article
Journal: Economic Geology
Published: 01 June 2014
Economic Geology (2014) 109 (4): 1005-1033.
...C. Paul Jago; C. Paul Jago; Richard M. Tosdal; David R. Cooke; Anthony C. Harris Abstract The moderately tilted and faulted Early Jurassic Mt. Milligan Au-Cu deposit provides a cross-section view of the hydrothermal alteration, sulfide mineralogy, and geochemical zonation of a silica-saturated...
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Journal Article
Journal: Economic Geology
Published: 01 June 2014
Economic Geology (2014) 109 (4): 979-1004.
... pyroxenites, monzonites, and syenites. Some of the biotite pyroxenites have interstitial sulfides, which appear similar to net-textured sulfides in magmatic ore deposits; however, the pyroxenites have undergone several stages of hydrothermal alteration. Main-stage mineralization produced sulfide zonation...
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Image
District geology map of the <b>Cadia</b> Valley based on surface mapping by Newcre...
Published: 01 June 2014
in and around multiphase monzonitic stocks. By contrast, the Cadia East deposit occupies a mineralized zone 2 km long, 600 m wide, and >1,500 m in vertical extent. Here, hydrothermal alteration and mineralization is lithologically controlled at surface, becoming more structurally controlled (as stockwork