 | | Journal (article/letter/editorial) | | in The DalesGorgeMember,Hamersley Group, Western Australia D. E. AYRES Abstract The HamersleyIron Ore...formationmacrobands.Chert,hematite,sideriteand stilpnomelane are primarymineralsand representthe crystallization...(1962) aided formationsof the HamersleyRange of Western carbonate-staining identification Australiacontainabundant...iron-richminerals--magnetite, hematite,siderite,ankerite, stilpnomelane, minnesotaite and,lesscommonly, biotite. The...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...volcanismwas active during much of Brockman time. The stilpnomelane-rich layersappearto haveformedby alterationof...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-formation. The mineralogy and originof the stilpnomelane layersis very differentfrom that of ironformation |  | | 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) | | 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...nature of subsequentdiagenesis,thesegave way to stilpnomelane and minnesotaite, respectively, with occasionally...representsa metasomaticreplacementproduct after stilpnomelane, crocidoliteis essentiallya direct crystallizationproduct...source of crocidoliteand hematiteore, the Dales Gorge Mem- ingly more acceptable,the use of the term |  | | 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...volatile Rare Earth Element (REE) abundances in stilpnomelane spherule cores is consistent with this model...DGS4 microkrystite spherules are dominated by stilpnomelane mantled by K-feldspar shells, which consist |  | | 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) | | 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) | | 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...with unaltered equivalents that contain mostly stilpnomelane, K-feldspar and relatively minor carbonates...Introduction The Hamersley Province of northern Western Australia is one of the largest iron ore producing regions |  | | Journal (article/letter/editorial) | | ABSTRACT Hundredsof layers composed dominantlyof stilpnomelane occur in thick, extensiveiron-formationin the...madewith similar stilpnomelane-rich layers in iron-formationfrom Western Australia. The presenceof thesealtered...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...sections, confirmation that the materialis stilpnomelane by X-ray methods, anda chemical analysis of |  | | 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) | | Brockman Iron Formation (Hamersley Group, Western Australia) Scott HASSLER1, Sandra BILLER2, and Bruce...the Dales Gorge Member is the only bed in the Brockman Iron Formation (Hamersley Group, Western Australia)...spherules. At a newly discovered site in Munjina Gorge (MG), the internal stratigraphy of the DS4 impact...consists of two newly recognized subunits at Yampire Gorge (YG). The lower subunit is rich in well-sorted spherules...boundary: five in the Hamersley Basin of Western Australia and three in the Griqualand West/ Transvaal |  | | 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...dolomite, calcite), and silicates (greenalite, stilpnomelane, minnesotaite, riebeckite) as well as chert...facies in the Brockman Iron Formation of Western Australia where oxides, carbonates and silicates are |  | | Journal (article/letter/editorial) | | study from the Dales Gorge BIF, Paleoproterozoic Hamersley Group of Western Australia Dawn SWEENEY1 and...the DS4 layer of the Dales Gorge BIF (Hamersley Group, Western Australia) are so well preserved that...have the same composition (mainly diagenetic stilpnomelane and K-feldspar) and share a common suite of...Paleoproterozoic in age. The Hamersley Group of Western Australia (Fig. 1) consists of a thick package of Neoarchean... The youngest known layer resides in the Dales Gorge Member of the Brockman Iron Formation (Fig. 2). |  | | 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...after calcining. Karst erosion of the overlying Wittenoom Formation has produced steep-sided buried valleys...approximately 75 km northwest of Newman (Fig. 1) in Western Australia. The main hematite ore deposits at Hope Downs |  | | 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,...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...riebeckite-bearing of riebeckite within the Dales Gorge Member of the iron-formations have been described |  | | Journal (article/letter/editorial) | | from the late Archean (~2.5 Ga) Hamersley Basin, Australia and the early Archean (~3.8 Ga) Isua Supracrustal...less commonly, calcite), chert and silicate (stilpnomelane, riebeckite, greenalite, minnesotaite), and...Mesoband Type Dales Gorge Member, Brockman Iron Formation Drill core from Wittenoom Gorge Area (118° 28′ E;...drilling operations in two areas: Wittenoom Gorge and Yampire Gorge. Hole designates core number. Depth...121–132 Dales Gorge Member, Brockman Iron Formation Drill core from Wittenoom Gorge Area (118° 28′ E; |  | | 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 | | 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 |  | | 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 | | 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 |  | | 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 (article/letter/editorial) | | More Bee Gorge spherule layer (TAN BED INDICATED BY ARROW) in Wittenoom Gorge, Western Australia. The layer...Hamersley layers are: Dales Gorge, Bee Gorge (originally called the Wittenoom), Paraburdoo, Jeerinah, and...Nuussuaq spherule layer (Jones et al. 2005) in western Greenland is uncertain, and this layer will not...is from the 0.58 Ga Acraman structure (South Australia) (Williams and Gostin 2005); both are relatively...Mt, NiSp, Cr Popigai Nuussuaq spherule bed3 Western Greenland ~30-60 ~60 GSph(qt), NiSp Unknown |  | | Journal (article/letter/editorial) | | Precambrianiron-formationsfrom the U.S., Canada,Australia, and South Africa reveals the commonpresenceof...surpassed by dolomiteduringmiddleandlater in Western Australia and South Africa. Middle Precambrian. It is...restrictedto the Precambrian. man formation at Wittenoom Gorge and Deepdale, Sedimentaryiron depositsand chert...foundin youngerrocksequences, but thereseemsto Western Australia; and the iron-formation in the havebeena ...Goldsworthyand Wilgie Mia, Western tweenbiologicalactivityand iron-formations.Leith Australia; and Bomvu Ridge |  | | Journal (volume) | | progress review of the Hamersley Basin of Western Australia 113 Vokes, F. M.: Caledonian-Appalachian...Bj0rnevann occur on both sides of a synform, Bj0rnevann Mine lies at the northern crest" of the synform with...Bulletin 307 axes striking NW-SE. By this shear the western side of the deposits were displaced northwards...eposits (e. g . Souvrarappat, Porsanger). Repparfjord mine is a disseminated lowgrade copper deposit with chaleopyrite...nickel deposits in the Norseman-Viluna belt in Western Australia. According to R. Gee, D. Groves and C. Fletcher |
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