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195542 195542.Pdf (18.35Mb) RECORD 2010/5 Government of Western Australia Department of Mines and Petroleum This Record is published in digital format (PDF) and is available online at <www.dmp.wa.gov.au/GSWApublications>. Laser-printed copies can be ordered from the Information Centre for the cost RECORD 2010/5 of printing and binding. CONTINENT–CONTINENT COLLISION RECORD OF PALEOPROTEROZOIC RECORD OFPALEOPROTEROZOIC THE GLENBURGH OROGENY ASA OROGENY THE GLENBURGH THE GLENBURGH OROGENY AS A Further details of geological products produced by the Geological Survey of Western Australia can be obtained by contacting: RECORD OF PALEOPROTEROZOIC Information Centre CONTINENT – CONTINENT COLLISION Department of Mines and Petroleum 100 Plain Street EAST PERTH WESTERN AUSTRALIA 6004 by SP Johnson, S Sheppard, B Rasmussen, MTD Wingate, Phone: (08) 9222 3459 Fax: (08) 9222 3444 CL Kirkland, JR Muhling, IR Fletcher, and E Belousova www.dmp.wa.gov.au/ebookshop JOHNSON ET AL. JOHNSON ETAL. Geological Survey of Western Australia Government of Western Australia Department of Mines and Petroleum Record 2010/5 THE GLENBURGH OROGENY AS A RECORD OF PALEOPROTEROZOIC CONTINENT–CONTINENT COLLISION by SP Johnson, S Sheppard, B Rasmussen1, MTD Wingate, CL Kirkland, JR Muhling2, IR Fletcher1, and E Belousova3 1 Department of Applied Geology, Curtin University of Technology, GPO Box U1987, Perth, Western Australia 6845 2 Centre for Microscopy, Characterisation and Analysis M010, The University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia 3 Centre for Geochemical Evolution and Metallogeny of Continents (GEMOC), Department of Earth and Planetary Sciences, Macquarie University, Sydney, New South Wales, 2109 MINISTER FOR MINES AND PETROLEUM Hon. Norman Moore MLC DIRECTOR GENERAL, DEPARTMENT OF MINES AND PETROLEUM Richard Sellers EXECUTIVE DIRECTOR, GEOLOGICAL SURVEY OF WESTERN AUSTRALIA Tim Griffin REFERENCE The recommended reference for this publication is: Johnson, SP, Sheppard, S, Rasmussen, B, Wingate, MTD, Kirkland, CL, Muhling, JR, Fletcher, IR and Belousova, E 2010, The Glenburgh Orogeny as a record of Paleoproterozoic continent–continent collision: Geological Survey of Western Australia, Record 2010/5, 54p. National Library of Australia Card Number and ISBN 978-1-74168-276-2 Grid references in this publication refer to the Geocentric Datum of Australia 1994 (GDA94). Locations mentioned in the text are referenced using Map Grid Australia (MGA) coordinates, Zone 50. All locations are quoted to at least the nearest 100 m. U–Pb measurements were conducted using the SHRIMP II ion microprobes at the John de Laeter Centre of Mass Spectrometry at Curtin University of Technology in Perth, Australia. Geochemical analyses discussed in this publication are funded in part by the Western Australian State government Exploration Incentive Scheme (EIS). Published 2010 by Geological Survey of Western Australia This Record is published in digital format (PDF), as part of a digital dataset on CD, and is available online at www.dmp.wa.gov.au/GSWApublications. Laser-printed copies can be ordered from the Information Centre for the cost of printing and binding. Further details of geological publications and maps produced by the Geological Survey of Western Australia are available from: Information Centre Department of Mines and Petroleum 100 Plain Street EAST PERTH, WESTERN AUSTRALIA 6004 Telephone: +61 8 9222 3459 Facsimile: +61 8 9222 3444 www.dmp.wa.gov.au/GSWApublications Contents Abstract ..................................................................................................................................................................1 Introduction ............................................................................................................................................................1 Regional geology....................................................................................................................................................3 Metasedimentary packages ....................................................................................................................................5 Moogie Metamorphics ....................................................................................................................................5 Mumba Psammite ....................................................................................................................................6 Camel Hills Metamorphics .............................................................................................................................7 Quartpot Pelite .........................................................................................................................................7 Petter Calc-silicate .................................................................................................................................10 Deformation and metamorphism ..........................................................................................................................10 D1g deformation and metamorphism .............................................................................................................10 D2g deformation and metamorphism .............................................................................................................11 Paradise Zone .........................................................................................................................................11 Mooloo Zone ..........................................................................................................................................11 Errabiddy Shear Zone ............................................................................................................................12 Post-Glenburgh Orogeny deformation and metamorphism ..........................................................................12 Ion microprobe U–Pb zircon geochronology .......................................................................................................13 Moogie Metamorphics ..................................................................................................................................13 GSWA 184161: retrogressed pelitic diatexite (Mumba Psammite) ................................................13 GSWA 183275: psammitic schist (Mumba Psammite) ..................................................................14 GSWA 184160: psammitic schist (Mumba Psammite) ..................................................................14 GSWA 187403: tourmaline-bearing orthoquartzite ........................................................................16 GSWA 185942: pelitic diatexite .....................................................................................................17 NP20: fi ne-grained quartzite (Kinny et al., 2004) ...........................................................................17 Camel Hills Metamorphics ...........................................................................................................................18 Quartpot Pelite .......................................................................................................................................18 GSWA 142910: retrogressed pelitic diatexite .................................................................................18 GSWA 142905: retrogressed pelitic diatexite .................................................................................22 GSWA 168944: psammitic schist ...................................................................................................22 Petter Calc-silicate .................................................................................................................................23 GSWA 142908: calc-silicate gneiss ................................................................................................23 In situ U–Pb geochronology of monazite and zircon ...........................................................................................23 GSWA 164369: garnet–sericite schist ............................................................................................23 GSWA 168713: magnetite–sericite schist .......................................................................................25 GSWA 164333: chloritoid schist ....................................................................................................28 Laser ablation Lu–Hf isotopes of zircon ..............................................................................................................28 GSWA 142910: retrogressed pelitic diatexite .................................................................................28 GSWA 142905: retrogressed pelitic diatexite .................................................................................28 GSWA 168944: psammitic schist ...................................................................................................30 Discussion ............................................................................................................................................................30 Basin provenance ..........................................................................................................................................30 Moogie Metamorphics ...........................................................................................................................30 Camel Hills Metamorphics ....................................................................................................................33
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