 | | Journal (article/letter/editorial) | | in The DalesGorgeMember,Hamersley Group, Western Australia D. E. AYRES Abstract The HamersleyIron Ore...stableHamersleyBasin. The dominantiron oxidepresent,magnetite,formedprincipallyduringdiagenesis by crystallization...(1962) aided formationsof the HamersleyRange of Western carbonate-staining identification Australiacontainabundant...Australiacontainabundant iron-richminerals--magnetite, hematite,siderite,ankerite, stilpnomelane, minnesotaite and...Trendall (1965a) within the Dales Gorge Member of the of Western Australia, some 700 miles from Perth. BrockmanIron |  | | Journal (article/letter/editorial) | | HAMERSLEY ROCKS IN IRON-FORMATION RANGE, WESTERN GENE IN AUSTRALIA L. LABERGE ABSTRACT Altered pyroclasticrocks...theareahasbeenmapped by theGeological Surveyof Western Australia(10). Figure1 is a location mapof thearea....onlyslightlymetamorphosed, andare relativelyflat-lyingin the Wittenoom Gorgearea. Threebanded iron-formations, theMatraMamba...IRON-FORMATIONS MARBLE.BAR ß IRON FORMATIONS NULLAGINEß WITTENOOM • •OLGEEI)A BROCKMAN [] MARRA MAMBA .•TOß•...andsample theirdrillcoreandmineworkings at Wittenoom Gorge. The research wasdonein the Dept.of Economic |  | | Journal (article/letter/editorial) | | Asteroid Impact Fallout Units, Pilbara Craton, Western Australia ANDREW Y. GLIKSON ABSTRACT Pioneering studies...deposits in the Hamersley Basin, Pilbara Craton, Western Australia, by B.M. Simonson and S.W. Hassler, document...Bed SMB-1 and SMB-2 impact events, Bee Gorge Member, Wittenoom Formation. The two impact cycles are separated...depth. The ,2.47–2.50 Ga DGS4 (S4 Macroband, Dales Gorge Member, Brockman Iron Formation) fallout units include...example is the Acraman impact structure, South Australia, and the adjoining fallout and tsunami units in |  | | Journal (article/letter/editorial) | | hematite ore deposit at Mount Whaleback, Western Australia Received: 20 February 2004 / Accepted: 5 August...martite-microplaty hematite ore deposits in northwest Australia remains a contentious topic in part because important...to unaltered black Mount McRae Shale from Wittenoom Gorge in the north and altered black and red Mount...carbonate-rich, silica-poor rocks in the overlying Dales Gorge Member at Mount Whaleback is consistent with pervasive...James Cook University, 4811 Townsville, QLD, Australia E-mail: Adam.Webb@jcu.edu.au Present address: |  | | Journal (article/letter/editorial) | | Petrographicstudiesof a bore core sectionthrough the Dales Gorge Member of the Brockman Iron Formation, supportedby...associatedferroan silicate minerals in the Wittenoom Gorge area. The primitive silicate phasesappear to...abundanceof Fe*+ ions and low Eh conditions. Associated magnetite, despiteits apparent seedingrole, is a seriouscontenderfor...seriouscontenderfor Fe++,so to minimize magnetite formation, relatively low pH values are also probably more...source of crocidoliteand hematiteore, the Dales Gorge Mem- ingly more acceptable,the use of the term |  | | Journal (article/letter/editorial) | | constraints from across the Hamersley Province, Western Australia Adam D. Webb a,*, Gerald R. Dickens a,b, Nicholas...James Cook University, Townsville, QLD 4811, Australia b Department of Earth Sciences, Rice University...Hamersley Province, Western Australia, where banded ironformation (BIF) of the Dales Gorge Member has been...samples of the Dales Gorge Member and surrounding shales from the type section near Wittenoom and the Mt. Whaleback...Whaleback mine near Newman. Profound chemical and mineralogical changes suggest that after early diagenesis |  | | Journal (article/letter/editorial) | | the origin of a banded iron-formation in Western Australia RICHARD H. BECKER Department of Chemistry...iron-formation of the Dales Gorge Member of the Brockman Iron Formation and from the Wittenoom and Duck Creek Dolomite...Formations of the Hamersley Range area of Western Australia. The ironformation carbonates had SCY3values... CLAYTON The Hamersley Iron Province of Western Australia contains examples of extremely well-preserved...Iron Province lies on the northwest coast of Australia, between latitudes 21’30’ and 23’30’5 and longitudes |  | | Journal (article/letter/editorial) | | Upper Mount McRae Shale at Mount Whaleback, Western Australia – implications for iron ore genesis A. D....genesis of giant hematite ore deposits in northwest Australia remains a contentious topic in part because key... Compared with unaltered black shale from Wittenoom Gorge in the north and altered black and red shale...Introduction The Hamersley Province of northern Western Australia is one of the largest iron ore producing regions...formation (BIF), originally composed predominantly of magnetite and chert, have been altered to martite and microplaty |  | | Journal (article/letter/editorial) | | carbon isotopic (δ13C, vs. V-PDB) compositions of magnetite and of iron-rich and iron-poor carbonates in BIFs...from the late Archean (~2.5 Ga) Hamersley Basin, Australia and the early Archean (~3.8 Ga) Isua Supracrustal...the Hamersley Basin, including light values in magnetite and heavy values in iron-rich carbonates (up to...diagenetic reduction of ferric oxide precursors to magnetite and carbonate through microbial iron respiration...combinations of four dominant facies: oxide (magnetite, hematite), carbonate (siderite, ankerite, Fe–dolomite |  | | Journal (article/letter/editorial) | | Brockman Iron Formation, Hamersley Basin, Western Australia: evidence for a major asteroid impact in simatic...Australian National University, Canberra, ACT 0200, Australia Received 26 May 2003; received in revised form...Dales Gorge Member (2.47^2.50 Ga), Brockman Iron Formation, Hamersley Group, Western Australia, displays...needles of feldspar-exsolved ilmenite. Associated magnetite may have high nickel ( 6 1.25% NiO). The generally... Dales Gorge Iron Member, Brockman Iron Formation, Hamersley Group, Hamersley Basin, Western Australia |  | | Journal (article/letter/editorial) | | wo]framite, 995. Pengenna mine, St. Kew: meneghinite, 424. South Terras mine, St. Stephen-in Brannel:...argentojarosite, li. WALES Benallt mine, Rhiw, Caernarvonshire: celsian, 508. Clogau mine, Dolgelly, ~ier.ionethshire:...424. Vigra mine, Dolgelly, Merionethshire: tellurbismuth, 424. SCOTLAND Morar, Inverness-shire: garnet...e c h o s l o v a k i a (~eskoslovensko) Plavno mine, Krus'~ tlory, Bohemia: stannian andradite, 379...varlamoffite, 622. Japan Kaso mine, Tochiga : kasolte, 508. Nodo Tamagawo mine, Iwate prefecture: barium-orthoclase |  | | Journal (article/letter/editorial) | | Precambrian banded iron-formation. Hamersley Range. Western Australia RICHARD H. BECKER* Department of Chemistry...Abstract-Oxygen isotope ratios were determined for quartz, magnetite, ankerite, siderite, riebeckite, hematite and...samples of banded iron-formation from the Dales Gorge Member of the Brockman Iron Formation and for quartz...quartz, dolomite and calcite in samples of the Wittenoom Dolomite and Duck Creek Dolomite Formations, all...all from the Hamersley Range area of Western Australia. Additionally, in order to interpret the measured |  | | Journal (article/letter/editorial) | | stilpnomelane-rich layers in iron-formationfrom Western Australia. The presenceof thesealtered pyroclasticlayers...opportunityto studythe BrockmanIron-formation in Western Australia, and found abundant evidenceof volcanic activity...pyroclasticrocksin the BrockmanIron-formation in Western Australia. The writer spent 2 monthsin South Africa...the iron mineralogychangesdrastically;siderite,magnetite,stilpnomelane and minnesotaite are common;hematiteand...transitionswere seenin ntunerousdrill coresand in mine workingsin the Kuruman and Koegasareasin the CapeProvince |  | | Journal (article/letter/editorial) | | Geoscience Journal of the Geological Society of Australia Publication details, including instructions for... Australian National University , ACT, 0200, Australia E-mail: Published online: 27 Sep 2011. To cite...Geoscience Journal of the Geological Society of Australia, 52:4-5, 785-798, DOI: 10.1080/08120090500170328...Sciences, Australian National University, ACT 0200, Australia (andrew.glikson@anu.edu.au). Criteria allowing...Palaeoproterozoic sequences in the Pilbara Craton, Western Australia, with references to similar units in the Kaapvaal |  | | Journal (article/letter/editorial) | | University of Western Australia, 35 Stirling Highway, Perth, Western Australia 6009, Australia *Corresponding...sedimentary basins such as the Hamersley basin, Western Australia and the Transvaal basin of South Africa. Major...America and the coeval Frere Formation in Western Australia, and the Rapitan-type iron formations deposited...contain multiple generations of iron oxides (magnetite, hematite, goethite), carbonates (siderite, ankerite...recognized deposition of oxide (hematite and magnetite subfacies), carbonate, silicate and sulphide facies |  | | Journal (article/letter/editorial) | | Downs Iron Ore Deposit, Hamersley Province, Western Australia DESMOND F. LASCELLES† Centre for Exploration... University of Western Australia, 35 Stirling Highway, Crawley, W.A. 6009, Australia Abstract The banded...Archean to Proterozoic Hamersley Group of Western Australia. The main orebody extends to 260 m below the...rich in martite (pseudomorphous hematite after magnetite) and poor in limonite and goethite compared to...after calcining. Karst erosion of the overlying Wittenoom Formation has produced steep-sided buried valleys |  | | Journal (article/letter/editorial) | | iron-formation of the Dales Gorge Member, HamersleyGroup, Western Australia T,cxesHr MIveNor eNo ConNeI-Is...riebeckite formation in the Dales Gorge Member, Hamersley Group, Western Australia. Computed values of Sie6,...conditions than hematite and higher pH values than magnetite or hematite. Where riebeckite coexists with carbonates...assemblagesin the iron-formations of the Dales Gorge Member can be divided into two groups, carbonate-free...temperature formations of the Hamersley Group of Western Australia pressureis bounded by the lower part ofthe |  | | Journal (article/letter/editorial) | | Neoarchean-Paleoproterozoic Dales Gorge Member (Brockman Iron Formation, Hamersley Basin, Australia) Pillar de Oliveira...Neoarchean-Paleoproterozoic Dales Gorge Member (Brockman Iron Formation, Hamersley Basin, Australia), Precambrian Research...NeoarcheanPaleoproterozoic Dales Gorge Member (Brockman Iron Formation, Hamersley Basin, Australia) Pillar de Oliveira...The Dales Gorge Member (DGM) of the Brockman Iron Formation (Hamersley Basin, Western Australia) is a classic...photographs from three cores drilled in the Wittenboom Gorge vicinity is examined using well established methods |  | | Book | | Perth, W.A., Australia and R.C. MORRIS Division of Mineralogy, CSIRO, Wembley, W.A., Australia ELSEVIER...6 9 5 Burke Road, Camberwell, Victoria 3124, Australia. P. CLOUD Department of Geological Sciences...House, 6 6 Adelaide Terrace, Perth Western Australia 6000, Australia. W.E. EWERS Unit 1 6 , 1 2 8 Forrest...Forrest Street, Peppermint Grove, Western Australia 6011. Australia. B.J. FRYER Department o f Geology...6 9 5 Burke Road, Camberwell, Victoria 3124, Australia. G.A. GROSS Geological Survey of Canada, 6 0 |  | | Book | | Related Mineral Systems with Special Reference to Australia Modern Approaches in Solid Earth Sciences Volume...Franco Pirajno, The University of Western Australia, Perth, Australia Brian Windley, Department of Geology...Related Mineral Systems with Special Reference to Australia Andrew Y. Glikson Planetary Science Institute...ACT, Australia Franco Pirajno Centre for Exploration Targeting The University of Western Australia Crawley...Crawley, WA, Australia Responsible Series Editor: F. Pirajno ISSN 1876-1682 ISSN 1876-1690 (electronic) |  | | Journal (volume) | | progress review of the Hamersley Basin of Western Australia 113 Vokes, F. M.: Caledonian-Appalachian...The main metal is iron in quartz-hypersthene magnetite ores and iron quartzites. Geochemically specialized...alkaline-intrusive magmatism (apatite, nepheline, phologopite, magnetite, etc). The age of the ores is 400290 Ma. The deposits...small vein deposits of remobilized highgrade magnetite ore. The supracrustals of the iron formation were...1911, Bugge 1960). The ore is thin banded with magnetite-rich bands alternating with quartz-rich bands |  | | Book | | Geological Survey of Western Australia, and The University of Western Australia, Perth, Australia M.J.R. Wortel...University Canberra, Australian Capital Territory Australia Responsible Series Editor: F. Pirajno Additional...zircons <4.404 Ga-old from the Jack Hills, Western Australia, leave large part of the earliest history...Superior Province in Canada, Yilgarn Craton and the western Pilbara Craton, compared by some authors to circum-Pacific...following my studies at the University of Western Australia during 1964–1968, my years in the Australian |  | | Journal (article/letter/editorial) | | Refining Co. Ltd. Research Laboratories, Sydney, Australia [Read 12 March 1964] Summary. The thermal disintegration...were obtained from Wittenoom Gorge, in the Hammersley Ranges of Western Australia. The asbestos veins...H = hematite, C cristobalite, and S = spinel (magnetite) In air In vacuo Temperature (~ 800~ 850~ 900...reflections not consistent with the spinel structure of magnetite were observed. These reflections can be associated |  | | Book | | Australian National University Canberra, ACT Australia ISSN 2191-5369 ISSN 2191-5377 (electronic) ISBN...the study of Gosses Bluff Structure, Central Australia, where the United States Astrogeology Branch,...Craton, with the support of Arthur Hickman of the Western Australian Geological Survey and my field mate...investigations of impact ejecta units in the Pilbara, Western Australia, on laboratory studies of impact ejecta from...Arthur Hickman of the Geological Survey of Western Australia. I thank Robert Iasky, Franco Pirajno, Peter |  | | Journal (article/letter/editorial) | | classification of, lxv, 945. Andamoolca, South Australia, opal, 429. Andalusite, pseudomorphs of kyanite...Bearpaw Mtns., Montana, pseudoleucite, 596. Benallt mine, Rhiw, Caernarvonshire, celsian, 508. Berek compensator... 2rid edn, Vol. 2, 554; Vol. 3, 1022. Boqueirdo mine, Parelhas, Rio Grande do Norte, Brazil, leucophosphite... 200. Brazilianite, Brazil, d.t.a., 427. Brejui mine, Currais Novos, Rio Grande do Norte, Brazil, bismuth... Capo di Bavo, Rome, leucite, 596. Cariboo gold mine, Wells, British Columbia, scheelite, 995. CARN~mO |
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