Age of Cu‐Au mineralisation, Cloncurry district, eastern Mt Isa Inlier, Queensland, as determined by ⁴⁰Ar/³⁹Ar datingFootnote∗

Table 3 [indicated by an asterisk (∗) in the text and listed at the end of the paper] is a Supplementary Paper lodged with the National Library of Australia (Manuscript Section); copies may be obtained from the Business Manager, Geological Society of Australia.

References

• Adshead , N. D. 1995 . Alteration, geochemistry and paragenesis of the Osborne Cu‐Au deposit, NW Queensland , Townsville : James Cook University . PhD thesis
   Google Scholar
• Adshead , N. D. The role of hypersaline hydrothermal fluids in the formation of the Osborne Cu‐Au deposit, Cloncurry district, NW Queensland . In: MIC ‘96: New Developments in Metallogenic Research in the McArthur‐Mt Isa‐Cloncurry Minerals Province, Extended Conference Abstracts . Vol. 55 , pp. 1 – 4 . James Cook University Economic Geology Research Unit Contribution
   Google Scholar
• Beardsmore , T. J. 1993 . Petrogenesis of Mount Dore‐style breccia‐hosted copper ± gold mineralisation in the Kuridala‐Selwyn region of northwestern Queensland , Townsville : James Cook University . PhD thesis
   Google Scholar
• Beardsmore , T. J. , Newbery , S.P. and Laing , W. P. 1988 . The Maronan Supergroup: an inferred early volcanosedimentary rift sequence in the Mount Isa inlier and its implications for ensialic rifting in the Middle Proterozoic or northwest Queensland . Precambrian Research , 40/41 : 487 – 507 .
   Web of Science ®Google Scholar
• Beeson , R. 1990 . Broken Hill‐type lead‐zinc deposits—an overview of their occurrence and geological setting . Transactions of the Institution of Mining and Metallurgy , 99 : B163 – 175 .
   Google Scholar
• Berger , G. W. and York , D. 1981 . Geothermometry from 40Ar/39Ar dating experiments . Geochimica et Cosmochimica Acta , 45 : 795 – 811 .
   Web of Science ®Google Scholar
• Bell , T. H. 1983 . Thrusting and duplex formation at Mount Isa . Nature , 304 : 493 – 497 .
   Web of Science ®Google Scholar
• Blake , D. H. 1987 . Geology of the Mount Isa Inlier and environs, Queensland and Northern Territory . Bureau of Mineral Resources Bulletin , 225
   Google Scholar
• Blake , D. H. , Etheridge , M. A. , Page , R. W. , Stewart , A. J. , Williams , P. R. and Wyborn , L. A. I. 1990 . “ Mt. Isa Inlier—Regional geology and mineralization ” . In Geology of the Mineral Deposits of Australia and Papua New Guinea , Edited by: Hughes , F. E. 915 – 925 . Melbourne : Australasian Institute of Mining and Metallurgy .
   Google Scholar
• Connors , K. A. and Page , R. W. 1995 . Relationships between magmatism, metamorphism and deformation in the western Mount Isa Inlier, Australia . Precambrian Research , 71 : 131 – 153 .
   Web of Science ®Google Scholar
• Copeland , P. and Spell , T. 1994 . “ On plateaus ” . In In: ICOG 8 Abstracts Vol. 1107 , 67 US Geological Survey Circular
   Google Scholar
• Craske , T. E. 1995 . Geological aspects of the discovery of the Ernest Henry Cu‐Au deposit, northwest Queensland . Australian Institute of Geoscientists Bulletin , 16 : 95 – 109 .
   Google Scholar
• Dalrymple , G. B. and Lanphere , M. A. 1969 . Potassium‐argon Dating , San Francisco : W. H. Freeman .
   Google Scholar
• Davidson , G. J. 1992 . Hydrothermal geochemistry and ore genesis of sea‐floor volcanogenic copper‐bearing oxide ores . Economic Geology , 87 : 889 – 912 .
   Web of Science ®Google Scholar
• De Jong , G. and Williams , P. J. 1995 . Giant metasomatic system formed during exhumation of mid‐crustal Proterozoic rocks in the vicinity of the Cloncurry Fault, northwest Queensland . Australian Journal of Earth Sciences , 42 : 281 – 290 .
   Web of Science ®Google Scholar
• Drummond , J. , MacCready , T. Lister , G. S. 1995 . AGCRC Mount Isa Transect Workshops , Australian Geodynamics Cooperative Research Centre .
   Google Scholar
• Edwards , A. B. and Baker , G. 1954 . Scapolization in the Cloncurry District of north‐western Queensland . Journal of the Geological Society of Australia , 1 : 1 – 33 .
   Google Scholar
• Gow , P. A. , Wall , V. J. , Oliver , N. H. S. and Valenta , R. K. 1994 . Proterozoic iron oxide (Cu‐U‐Au‐REE) deposits: further evidence of hydrothermal origins . Geology , 22 : 633 – 636 .
   Web of Science ®Google Scholar
• Harland , W. B. , Armstrong , R. L. , Cox , A. V. , Craig , L. E. , Smith , A. G. and Smith , D. G. 1989 . A Geologic Time Scale 1989 , Cambridge : Cambridge University Press .
   Google Scholar
• Harrison , T. M. 1981 . Diffusion of 40Ar in hornblende . Contributions to Mineralogy and Petrology , 78 : 324 – 331 .
   Web of Science ®Google Scholar
• Harrison , T. M. and McDougall , I. 1980 . Investigations of an intrusive contact, northwest Nelson New Zealand—I. Thermal, chronological and isotopic constraints . Geochimica et Cosmochimica Acta , 44 : 1985 – 2003 .
   Web of Science ®Google Scholar
• Harrison , T. M. and McDougall , I. 1982 . The thermal significance of potassium feldspar K‐Ar ages inferred from 40Ar/39Ar age spectrum results . Geochimica et Cosmochimica Acta , 46 : 1811 – 1820 .
   Web of Science ®Google Scholar
• Hitzman , M. W. , Oreskes , N. and Einaudi , M. T. 1992 . Geological characteristics and tectonic setting of Proterozoic iron oxide (Cu‐U‐Au‐REE) deposits . Precambrian Research , 58 : 241 – 287 .
   Web of Science ®Google Scholar
• Jaques , A. L. , Blake , D. H. and Donchak , P. J. T. 1982 . Regional metamorphism in the Selwyn Range area, northwest Queensland . BMR Journal of Australian Geology & Geophysics , 7 : 181 – 196 .
   Google Scholar
• Kary , G. and Harley , R. 1990 . The Selwyn gold‐copper project . Australasian Institute of Mining and Metallurgy Monograph , 14 : 955 – 963 .
   Google Scholar
• Laing , W. P. 1993 . Structural/metasomatic controls on ore deposits in the East Mount Isa Block: the key to tonnes and grades . Australian Institute of Geoscientists Bulletin , 13 : 17 – 24 .
   Google Scholar
• Laing , W. P. , Rubenach , M. and Switzer , C. K. 1988 . The Starra gold‐copper deposit—syndeformational metamorphic mineralisation localised in a folded early regional zone of decollement . Geological Society of Australia Abstracts , 21 : 229
   Google Scholar
• Loosveld , R. J. H. 1989 . The intra‐cratonic evolution of the central eastern Mount Isa Inlier, northwest Queensland, Australia . Precambrian Research , 44 : 243 – 276 .
   Web of Science ®Google Scholar
• McDougall , I. and Harrison , T. M. 1988 . Geochronology and thermochronology by the 40Ar/39Ar method , New York : Oxford University Press .
   Google Scholar
• McDougall , I. and Roksandic , Z. 1974 . Total fusion 40Ar/39Ar ages HIFAR reactor . Journal of the Geological Society of Australia , 21 : 81 – 89 .
   Google Scholar
• McLean , G. and Benjamin , P. 1993 . The geology and development of the Mount Elliott copper‐gold deposit . Australian Institute of Geoscientists Bulletin , 13 : 47 – 54 .
   Google Scholar
• Mitchell , L. C. 1993 . Geology and geochemistry of the Wiley Igneous Complex, Eastern Fold Belt, Mount Isa Inlier , Townsville : James Cook University . BSc (Hon) thesis
   Google Scholar
• Noon , T. A. 1979 . Summary report of the geology of the Malbon 1:100 000 Sheet area (6955), northwestern Queensland . Geological Survey of Queensland Record , 1979/11
   Google Scholar
• Oliver , N. H. S. 1995 . Hydrothermal history of Mary Kathleen Fold Belts, Mt Isa Block, Queensland . Australian Journal of Earth Sciences , 42 : 267 – 279 .
   Web of Science ®Google Scholar
• Oliver , N. H. S. and Wall , V. J. 1987 . Metamorphic plumbing system in Proterozoic calc‐silicates, Queensland, Australia . Geology , 15 : 793 – 796 .
   Web of Science ®Google Scholar
• Oliver , N. H. S. , Holcombe , R. J. , Hill , E. J. and Pearson , P. J. 1991 . Tectonometamorphic evolution of the Mary Kathleen Fold Belt, northwest Queensland: a reflection of mantle plume processes . Australian Journal Earth Sciences , 38 : 425 – 455 .
   Web of Science ®Google Scholar
• Page , R. W. 1978 . Response of U‐Pb zircons and Rb‐Sr total rock and mineral systems to low‐grade regional metamorphism in Proterozoic igneous rocks, Mount Isa, Australia . Journal of the Geological Society of Australia , 25 : 141 – 164 .
   Google Scholar
• Page , R. W. 1987 . Geochronology . BMR87 , : 101
   Google Scholar
• Page , R. W. 1983 . Timing of superposed volcanism in the Proterozoic Mount Isa Inlier, Australia . Precambrian Research , 21 : 223 – 245 .
   Web of Science ®Google Scholar
• Page , R. W. 1993 . Mount Isa Geochronology . AGSO93 , : 60
   Google Scholar
• Page , R. W. and Bell , T. H. 1986 . Isotopic and structural responses of granite to successive deformation and metamorphism . Journal of Geology , 94 : 365 – 379 .
   Web of Science ®Google Scholar
• Page , R. W. and Sun , S‐S. Age and provenance of granites and host sequences in the Eastern Fold Belt of the Mount Isa Inlier . In: MIC ‘96: New developments in metallogenic research: the McArthur‐Mount Isa‐Cloncurry Minerals Province, Extended Conference Abstracts . Vol. 55 , pp. 95 – 98 . James Cook University Economic Geology Research Unit . Contribution
   Google Scholar
• Page , R. W. and Sun , S‐S. in press . Aspects of geochronology and crustal evolution in the Eastern Fold Belt, Mt Isa Inlier . Australian Journal of Earth Sciences ,
   Google Scholar
• Perkins , C. , McDougall , I. , Claoue‐Long , J. and Heithersay , P. S. 1990 . 40Ar/39Ar and U‐Pb Geochronology of the Goonumbla Porphyry Cu‐Au deposits, New South Wales, Australia . Economic Geology , 85 : 1808 – 1824 .
   Web of Science ®Google Scholar
• Perkins , C. , Walshe , J. L. and Morrison , G. 1995 . Metallogenic episodes of the Tasman fold belt system, eastern Australia . Economic Geology , 90 : 1443 – 1466 .
   Web of Science ®Google Scholar
• Perkins , C. and Wyborn , L. A. I. 1996 . The age of Cu‐Au mineralisation, Cloncurry District, Mount Isa Inlier, as determined by 40Ar/39Ar dating . AGSO Research Newsletter , 25 : 8 – 9 .
   Google Scholar
• Ramsay , C. R. and Davidson , L. R. 1970 . The origin of scapolite in the regionally metamorphosed rocks of Mary Kathleen, Queensland, Australia . Contributions to Mineralogy and Petrology , 25 : 41 – 51 .
   Web of Science ®Google Scholar
• Ryburn , R. J. , Wilson , I. H. , Grimes , K. G. and Hill , R. M. 1988 . Cloncurry, Queensland . Bureau of Mineral Resources 1:100 000 Geological Map Commentary ,
   Google Scholar
• Shergold , J. H. and Druce , E. C. 1980 . “ The Proterozoic and lower Palaeozoic rocks of the Georgina Basin ” . In The Geology and Geophysics of Northeastern Australia , Edited by: Henderson , R. A. and Stephenson , P. J. 149 – 174 . Brisbane : Geological Society of Australia, Queensland Division .
   Google Scholar
• Sillitoe , R. H. 1992 . Gold and copper metallogeny of the central Andes—past, present and future exploration objectives . Economic Geology , 87 : 2205 – 2216 .
   Web of Science ®Google Scholar
• Steiger , R. H. and Jäger , E. 1977 . Subcommission on geochronology: Convention on the use of decay constants in geo‐ and cosmochronology . Earth and Planetary Science Letters , 36 : 359 – 362 .
   Web of Science ®Google Scholar
• Switzer , C. K. , Laing , W. P. and Rubenach , M. J. 1988 . The Proterozoic Starra Au+Cu ironstone deposit—syntectonic mineralisation in a folded early regional zone of decollement . Geological Society of Australia Abstracts , 23 : 212 – 214 .
   Google Scholar
• Tanaka , H. and Idnurm , M. 1994 . Palaeomagnetism of Proterozoic mafic intrusions and host rocks of the Mount Isa Inlier, Australia: revisited . Precambrian Research , 69 : 241 – 258 .
   Web of Science ®Google Scholar
• Tetley , N. , McDougall , I. and Heydegger , H. R. 1980 . Thermal neutron interferences in the 40Ar/39Ar dating technique . Journal of Geophysics Research , 85 : 7201 – 7205 .
   Web of Science ®Google Scholar
• Wall , V. J. and Gow , P. A. 1995 . “ Some copper‐gold ore‐forming systems: iron(ic) connections ” . In Giant Ore Deposits—II Controls on the scale of orogenic magmatic‐hydrothermal mineralization. Proceedings of the Second Giant Ore Deposits Workshop , Edited by: Clark , A. H. 486 – 510 . Canada : Queen's University .
   Google Scholar
• Webb , M , Rowston , P. and Donohue , J. The geophysics of the Ernest Henry Cu‐Au Deposit (NW) Qld . In: MIC ‘96: New Developments in Metallogenic Research in The McArthur‐Mt Isa‐Cloncurry Minerals Province, Extended Conference Abstracts . Vol. 55 , pp. 143 – 145 . James Cook University Economic Geology Research Unit Contribution .
   Google Scholar
• Williams , P. J. 1994 . Iron mobility during synmetamorphic alteration in the Selwyn Range area, NW Queensland: implications for the origin of ironstone‐hosted Au‐Cu deposits . Mineralium Deposita , 29 : 250 – 260 .
   Web of Science ®Google Scholar
• Williams , P. J. and Blake , K. L. 1993 . Alteration in the Cloncurry District . James Cook University Economic Geology Research Unit Contribution , 49 : 75
   Google Scholar
• Williams , P. J. , Adshead , N. D. , Blake , K. L. , De Jong , G. , Mark , G. and Rotherham , J. F. Magnetite‐Cu‐Au deposits in deeply eroded magmatic arcs: lessons from Proterozoic terrains . In: Pacific Rim Congress 1995, Proceedings . pp. 631 – 636 . Australasian Institute of Mining and Metallurgy .
   Google Scholar
• Wyborn , L. A. I. , Page , R. W. and McCulloch , M. T. 1988 . Petrology, geochronology and isotope geochemistry of the post‐1820 Ma granites of the Mount Isa Inlier: mechanisms for the generation of Proterozoic anorogenic granites . Precambrian Research , 40/41 : 509 – 541 .
   Web of Science ®Google Scholar
• Wyborn , L. A. I. 1992 . The Williams and Naraku Batholiths, Mt. Isa Inlier: an analogue of the Olympic Dam Granites? . BMR Research Newsletter , 16 : 13 – 16 .
   Google Scholar
• Wyborn , L. A. I. in press . The younger ca 1500 Ma granites of the Williams and Naraku Batholiths, Cloncurry district, eastern Mount Isa Inlier: geochemistry, origin, metallogenic significance and exploration indicators . Australian Journal of Earth Sciences ,
   Web of Science ®Google Scholar
• Wyborn , L. A. I. and Heinrich , C. 1993 . The relationship between late‐tectonic felsic intrusives and Cu‐Au mineralisation in the eastern Fold Belt, Mount Isa Inlier . Australian Institute of Geoscientists Bulletin , 13 : 27 – 30 .
   Google Scholar
• Table 3 [indicated by an asterisk (∗) in the text and listed at the end of the paper] is a Supplementary Paper lodged with the National Library of Australia (Manuscript Section); copies may be obtained from the Business Manager, Geological Society of Australia.
   Google Scholar
• Present address: Coal and Mineral Industries Division, Department of Primary Industries and Energy, GPO Box 858, Canberra, ACT 2601, Australia.
   Google Scholar