 | | Journal (article/letter/editorial) | | University of Western Australia, Nedlands, Western Australia, 6907, Australia Graham S. Walkerb) CSIRO...Minerals, P.O. Box 90 Bentley, Western Australia, 6102, Australia (Received 18 July 1997; accepted 9 September...Minerals, P.O. Box 90 Bentley, Western Australia, 6102, Australia. * Author to whom all correspondence...lateritic bauxites from Weipa, Northern Queensland and Darling Range, Western Australia. 0885-7156/98/13(3)/136/8/$6...operations on the Darling Range in Western Australia by Alcoa of Australia Limited. The term bauxite has been |  | | Journal (article/letter/editorial) | | TOHDITE (5A1 2 0 3'H2 0) IN BAUXITES FROM NORTHERN AUSTRALIA Key Words-Akdalaite, Bauxite, Pisoliths, Poorly...hematite (Fe20), kaolinite (Al 2 Si 2 0s(OH)4) and anatase (Ti0 2 ). Diaspore (AIO(OH», goethite (FeO(OR»...some bauxitic pisoliths at Weipa, Cape York Peninsular, in northern Australia. using a Siemens DSOl X-ray...EXPERIMENTAL METHODS The bulk ofpisoliths from Weipa are somewhat porous and soft enough to powder from...Phase Gibbsite Boehmite Quartz Hematite Kaolinite Anatase PDM Total Wei&ht % excluding PDM 31.47 0.06 42 |  | | Journal (article/letter/editorial) | | National University, GPO Box 4, Canberra, ACT 260 1, Australia 2C.S.I.R.0., Division of Exploration Geoscience...Geoscience, P.O. Box 136, North Ryde, NSW 2 113. Australia (Received May 3, 1988; accepted in revisedform March...of gibbsite from the mid-Tertiary Weipa bauxite in north Queensland indicates equilibrium with waters...fractionation facmrs Deposit tXCUtlIX* THIS STUDY Weipa-rlC hp +6.9io.25 -53ztz.o .6.5= -3e 1.0135...35 -6~s -6.58 -3xa 1.0122 0.96S G~b(l971~) weipa-2c +6.8~.30 -51i2.5 -6.F -38a 1.0134 0.986 |  | | Journal (article/letter/editorial) | | ore unit within a lateritic bauxite deposit in Australia. Cross-validation was used to assess the performance...ground-penetrating radar, laterite, bauxite, ironstone, Weipa. INTRODUCTION Due to high-drilling costs, exploration...WA 6433, Australia. 2 School of Mechanical and Mining Engineering, The University of Queensland, Frank...Brisbane QLD 4072, Australia. 3 Rio Tinto Alcan, 123 Albert Street, Brisbane QLD 4000, Australia. 4 To whom correspondence...can be reliably estimated throughout the entire Weipa deposit using sparsely spaced borehole data. However |  | | Journal (article/letter/editorial) | | (S3âS16) Landscapes and regolith of Weipa, northern Australia G. TAYLOR1*, R. A. EGGLETON2, L. D. FOSTER2...MORGAN3 1 University of Canberra, ACT 2617, Australia. Cooperative Research Centre for Landscape Environments...University, ACT 0200, Australia. 3 48 Rinora Street, Corinda, Qld 4075, Australia. 2 Since its discovery...discovery during the 1950s the Weipa bauxite has been considered to be the product of in situ weathering of...research and outlines the geological setting of the Weipa Bauxite, and provides some evidence for alternative |  | | Journal (article/letter/editorial) | | Low Iron Bauxite,NortheasternCapeYork, Queensland, Australia A. II. WIIiTE Abstract Several small depositsof...remote northeast tip of Cape York Peninsula, Queensland, Australia. The low iron bauxite occurs in the low...leaching iron oxides posits on Cape York are the Weipa depositsthat from bauxite has .been noted in Ghana...hasdescribed the removalof iron in clays per annum. The Weipa bauxites,on the west coast in peatswampsin Hawaii...grade, containingan averageof 55.0 bauxitefoundin Australia. Not only are depositsof percent Al2Oa and 7.0 |  | | Journal (article/letter/editorial) | | Geology, University of NSW, Kensington, NSW 2033, Australia. The recent discovery of dickite, intimately associated...I, illite; M.L., mixed layer clay minerals; A, anatase; G, gorceixite; unlabelled reflections due to dickite...kaolinite with or without minor amounts of quartz and anatase (Loughnan 1971). These claystone bands are mostly...at Weipa, Queensland (Loughnan & Bayliss 1961) and in the Darling Range area of Western Australia (Sadleir...Grose Valley Colliery. Q, quartz; 1, illite; A, anatase; G, gorceixite; unlabelled reflections due to ordered |  | | Book | | John Wiley & Sons Australia, Ltd, 33 Park Road, Milton, Queensland 4064, Australia John Wiley & Sons...and that the majority of our work has been in Australia. We had the view that perhaps our experience being...traditional Northern Hemisphere ideas and concepts. In Australia our geological and geomorphological science has...challenged as research has led to new understandings. Australia, while not unique, is a continent that experienced...book may show and hope that the work sourced in Australia will serve to open othersâ minds as they pursue |  | | Journal (article/letter/editorial) | | Northern Australia P. L. C. GP,u~B CSIRO., University of Melbourne, Melbourne, Australia For optimum...Asian region, there is little evidence of this in Australia, where by contrast bauxites are Tertiary or pre-Tertiary...major bauxite deposits in northern Australia are situated at Gove, Weipa and Mitchell Plateau (Fig. 1), yet...lateritisation (and bauxitisation) in northern Australia, can be interpreted as deriving from a gradual...recognised four such surfaces or erosion cycles in Australia starting with a pre-Cretaceous Gondwana surface |  | | Report (issue) | | ....................................... B121 Australia ....................................... 121 Fiji...................... 25. Bauxite districts in Australia ................................................Summary of estimates of bauxite resources in Australia ................................................major world bauxite resources are in Africa, Australia, South America, and the Caribbean region; significant...Guinea ........................................ Australia ...................................... Brazil |  | | Journal (article/letter/editorial) | | including the non-consolidated pisolitic bauxite (Weipa) and the intensely lithified types (Gove, Sangaredi...2005â2013 at the mining operations and projects in Australia, Africa, South America, and the Middle East and...from nonconsolidated pisolitic mineralisation (Weipa) to intensely lithified bauxite beds (Gove, Sangaredi)... WA 6010, Australia Centre for Exploration Targeting, The University of Western Australia, 35 Stirling...Perth, WA6009, Australia 3 Rio Tinto Alcan, 123 Albert street, Brisbane, QLD 4000, Australia 2 *Corresponding |  | Bird, Michael I., Longstaffe, Frederick J., Fyfe, William S., Tazaki, Kazue, Chivas, Allan R. (1994) Oxygen-isotope fractionation in gibbsite: Synthesis experiments versus natural samples. Geochimica et Cosmochimica Acta, 58 (23) 5267-5277 doi:10.1016/0016-7037(94)90310-7 | Journal (article/letter/editorial) | | Australian National University, Canberra, A.C.T. 0200, Australia âDepartment of Earth Sciences, University of Western...information on bauxite formation. southwestern Australia (BALL and GILKES, 1985 ), as well as from the...( KRONBERC et al., 1982) and the Weipa deposit in northern Australia ( GRUBB, 197 la). Despite the general...minerals, such as goethite ( YAPP, 1990). rutile, and anatase (BIRD et al., 1993b). (2) (K)a,., values are calculated...obtained from a variety of bauxite deposits in Australia, Papua New Guinea, Malaysia, Hawaii, Brazil and |  | | Report (chapter) | | comparable with those of North America, South Africa, Australia and elsewhere. A re-examination of the outcrop...the flint clays of North America, South Africa, Australia and elsewhere, and have suggested that the bauxitic...basalt of Early Permian age in the Sydney Basin, Australia (Loughnan 1973, 1975). The green-grey clayrocks...ferruginous minerals, mostly siderite and A = anatase. W = kaolinite is predominantly well-ordered. D...at 3.51 A corresponding to the 101 spacing of anatase. The intensity of this reflection increases with |  | | Journal (article/letter/editorial) | | completely from some samples prior to analysis. Anatase-water oxygen-isotope fractionation factors of 1...the starting solutions. Higher values of a for anatase-water vs. rutile-water are in accord with predictions...maxima of 1.0143 at 22°C and 1.0081 at 50°C for anatase-water syntheses in which sulphate ions were added...similarity suggests that the isotopic composition of anatase is controlled not only by its temperature of formation...where rutile formed by inversion of less stable anatase, rutile appears to at least partially inherit its |  | | Report (issue) | | clay mineral kaolinite, and a minor amount of anatase (TiO2). The formation of bauxites requires intense...example of a lateritic bauxite deposit is Weipa in Queensland, Australia (fig. 1, point 1; Anand and others...Major world bauxite resources occur in Africa, Australia, South America, and the Caribbean (fig. 1). Guinea...1986b). The Adoom mine in the Weipa bauxite deposit of Queensland, Australia, reports an estimated 3.2 billion...The Darling Range bauxite deposits in Western Australia contain an estimated 900 to 1,000 million metric |  | | Journal (article/letter/editorial) | | lateritic bauxite deposit in the world is Weipa in north Australia. This region also contains other large...Bauxite Deposits Around the World Deposit Country Weipa Worsley (Boddington) Gove Huntly and Willowdale...Moengo Onverdacht Los Pijiguaos Australia Australia Australia Australia Brazil Brazil Brazil Brazil Brazil...Moengo Gove Kindia Grassalco 45.0 Reference Weipa Trombetas JurutiPanchpatmali Poços de Caldas Fria-Kimbo...semiquantitative phase concentrations at CSIRO, Waterford, Australia. X-ray diffraction patterns were collected for |  | | Journal (article/letter/editorial) | | Applied. Geology, Uniaersity of Neut South Wales, Australia. During a recent visit to a number of disused...Hulloysite {o"::otil- Mi.u coethite Hematite Anatase Quartz Emmatille E1 E2 E3 E4 n.) E6 E7 E8 E9...deposits near Weipa, Queensland.Am. Minerol. 46,209-217. OwrN, H. B. (1954) Bauxite in Australia. Bw. Mineral |  | | Journal (article/letter/editorial) | | Orissa, India Panchpatmali, Orissa, India Weipa, Queensland, Australia high-level highqevel highqevel low-level...Abbreviations of mineral names: am = amorphous; an - anatase; ca = calcite; cd = chloritoide; ch = chlorite;...represented by four samples. The sample from the Weipa deposit, Australia, has a typical pisolitic macrotexture...studied. Fig. 38. Gibbsitecrystals in bauxite,Weipa,Australia.A: 3000x; B: lO,O00x. CONCLUSIONS The |  | | Report (volume) | | countries ___________________ -_-_------------------Australia and Pacific Islands _______________________ -...110 Ill 114 114 115 115 CONTENTS v Page Australia and Pacific Islands-Continued Fijii~ands_____...Variation in chemical and mineral composition of Weipa bauxite and underlying rocks with depth_____________...younger rocks. The largest bauxite deposits are in Australia, which has 2 billion tons of reserves and about...imported metal made by American companies in Australia and countries in Asia and Africa. The drain on |  | | Journal (article/letter/editorial) | | concentration of Ti-bearing minerals (e.g., rutile and anatase) is Table 1 Summary of textural and mineralogical...goethite, rutile Kaolinite, diaspore, goethite, anatase Diaspore, illite, pyrite, quartz Hematite, limonite...resistant accessory minerals such as rutile and anatase. The concentration of these minerals is remarkably...presence of boehmite as the major Al-rich mineral and anatase as the main Ti-rich mineral in the bauxiticâlateritic...Acquafredda, 1999; Mongelli, 2002). The presence of anatase and rutile in the bauxiticâlateritic horizons indicate |  | | Report (issue) | | MINERAL RESOURCES BULLETIN 19 KAOLIN IN WESTERN AUSTRALIA by F? B. Abeysinghe and J. M. Fetherston -m ... GEOLOGICAL SURVEY OF WESTERN AUSTRALIA MINERAL RESOURCES BULLETIN 19 A by P. B. Abeysinghe and J...Ranford DIRECTOR, GEOLOGICAL SURVEY OF WESTERN AUSTRALIA David Blight Copy editor: L. Day The recommended...FETHERSTON, J. M., 1999, Kaolin in Western Australia: Western Australia Geological Survey, Mineral Resources...Library of Australia Card Number and ISBN 0 7309 6649 6 Abeysinghe, P. B. Kaolin in Western Australia Bibliography |  | | Journal (article/letter/editorial) | | SiO2; hematite, Fe203; goethite, Fe203" H20; and anatase, TiO2. For the exploration and exploitation of...correlated the chemical analysis of bauxites from Weipa, Australia, with the mineralogy as determined by X-ray |  | Liu, Xuefei, Wang, Qingfei, Zhang, Qizuan, Yang, Shujuan, Liang, Yayun, Zhang, Ying, Li, Yan, Guan, Tao (2017) Genesis of the Permian karstic Pingguo bauxite deposit, western Guangxi, China. Mineralium Deposita, 52 (7) 1031-1048 doi:10.1007/s00126-017-0723-y | Journal (article/letter/editorial) | | ore is mainly diaspore, pyrite, chamosite, and anatase, whereas the argillaceous bauxite contains diaspore...diaspore, kaolinite, pyrophyllite, pyrite, and anatase. Two types of pyrite have been identified within...instrument at CODES, University of Tasmania, Hobart, Australia. This instrument is equipped with a high-performance...this profile is dominated by diaspore, pyrite, anatase, chamosite, and minor kaolinite and zircon (ESM...ore in this profile contains diaspore, pyrite, anatase, chamosite, and minor calcite. The upper argillaceous |  | | Report (Issue volume) | | + 4, Mineral Fe # â of Australia andâą Papua New Guinea ...O02unse Geology of the Mineral Deposits of Australia and Papua New Guinea The COVER PHOTOGRAPH shows...Economic Geology of Australia Guinea â 1. Metals 6.* Economic Geology of Australia Guinea â 2. Coal 7...Economic Geology of Australia Guinea â 3. Petroleum 8.* Economic Geology of Australia Guinea â 4. Industrial...New Zealand Geology of the Mineral Deposits of Australia and 1982 Eds D.A. Berkman and W. Ryall Ed. D |  | | Journal (article/letter/editorial) | | associated with kaolinite, goethite, titaniumârich anatase, calcite, haematite, and quartz as subconstituents...mineral suite is composed of magnetite > > > > anatase > - pisolites (up to 2 cm in diameter) of light...altered into oolitic and Subangular grains of anatase are identified by their characteristic deep pisolitic...into Fe and Al oxides/ kaolinite, augite, and anatase are the dominant mineral constituents hydroxides...bauxite, while goethite, gibbsite, kaolinite, and anatase the lateritic bauxites are dominated by circular |
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