 | | Journal (article/letter/editorial) | | pose a unique challenge for resource modelling and mine planning due to the extreme lateral variability...ore unit within a lateritic bauxite deposit in Australia. Cross-validation was used to assess the performance... Comparison of the estimates against the actual mine floor indicates that the inclusion of ancillary...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 |  | | Journal (article/letter/editorial) | | Genesis of pisoliths and of the Weipa Bauxite deposit, northern Australia G. TAYLOR1* AND R. A. EGGLETON2...EGGLETON2 1 2 University of Canberra, ACT 2617, Australia. Cooperative Research Centre for Landscape Environments...Sciences, Australian National University, ACT 0200, Australia. Consideration of the Late Cretaceous and Cenozoic...the Cretaceous rocks. This continued until the Weipa Plateau was isolated by river capture and incision...inset into the weathered Cretaceous rocks. The Weipa bauxite deposit has similarities to other northern |  | | Journal (article/letter/editorial) | | Springer-Verlag 1971 Genesis of the Weipa Bauxite Deposits, N. E. Australia P. L . C . GRUBB Institute of Mining...both in vertical profile and bulk sized samples at Weipa are similar in broad outline, but show significant...thickness of profile, size fraction distribution, and quartz sand content also play an essential role. The significance...lithological relationships of the Weipa bauxite. Die Bauxite yon Weipa sind sowohl im senkrechten Profil... wie auch die lithologische Verwandtschaft der Weipa-Bauxite erkl~ren. Introduction For several reasons |  | | Journal (article/letter/editorial) | | (S3–S16) 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) | | 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...isodynamicseparatorto remove iron-rich(magnetic)grainsand quartz(non-magnetic).The resulting gibbsiteconcentratewas...coarserdetritalgrainsof mineralssuch as ilmenite and quartz. The resulting slurry was then treated with cold |  | | 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) | | THE MINERALOGY OF THE BAUXITE DEPOSITS NEAR WEIPA, QUEENSLAND F. C. LoucuNANANDP. Bavrrss, UnhersityoJNew...(maximum depth 19 feet), weipa (36 feet) and Pera Head (42 feet) and bore cones from Weipa and Pera Head were...yielded similar results. The channel samplesat Weipa and Pera Head extended to sealevel' MrNonar,ocv... F-rc. 1. Geological sketch map of the Weipa Area, Queensland. o* l € c e F i:Fsii€pFl'e€ .= I o...temperature distribution at Weipa, eueensland. 2tl BAT/XITE DEPOSITS IN QUEENSLAND F c J B 4 F z E U |  | | Journal (article/letter/editorial) | | Fontainebleau, France; bRio Tinto Alcan, Brisbane, Australia ABSTRACT ARTICLE HISTORY The precise prediction...variability of the bauxite footwall contact at Weipa, Australia: (1) regional, (2) local and (3) detailed...assessment; ferricrete; conditional simulation Weipa. In the first step, top elevation samples (main variable)...simulation to determine the optimum drillhole spacing at Weipa, and they concluded that the distribution of Al2...the optimum dig-lines for the ore extraction at Weipa. In this study, the bauxite seam attributes (i.e |  | | Book | | returned after the date stamped below. Mining and Australia i. a, ae an YY : tae he | aioe ; nl f “+... Mining and Australia edited by W.H. RICHMOND and P.C. SHARMA University of Queensland Press St Lucia...London © New York © University of Queensland Press, St Lucia, Queensland 1983 This book is copyright. Apart...to the publishers. Typeset by University of Queensland Press Printed and bound by Silex Enterprise and...National Library of Australia Cataloguing-in-Publication data Mining and Australia. Bibliography. ISBN |  | | Journal (article/letter/editorial) | | TOHDITE (5A1 2 0 3'H2 0) IN BAUXITES FROM NORTHERN AUSTRALIA Key Words-Akdalaite, Bauxite, Pisoliths, Poorly...(AI(OH))) and boehmite (AIO(OH», with variable minor quartz (Si0 2 ) , hematite (Fe20), kaolinite (Al 2 Si...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...vitreous-cored pisolith. Phase Gibbsite Boehmite Quartz Hematite Kaolinite Anatase PDM Total Wei&ht % |  | | Journal (article/letter/editorial) | | Australian National University, Canberra, ACT 0200, Australia Abstract-High-resolution transmission electron...selected along eastern Australia from southern Victoria to northern Queensland, and some were from New...Weathered in situ Pittong, Vic. Lal-Lal, Vic. West Australia Weipa-Andoom, Qld Granite Granite Granite Sediments...muscovite was commonly found in specimens from Weipa, Pittong and Lal Lal as 'discrete' crystals a few...Bunyan and Weipa. A small amount of tubular halloysite was found in the specimens from Weipa and Wairakei |  | | Journal (article/letter/editorial) | | including the non-consolidated pisolitic bauxite (Weipa) and the intensely lithified types (Gove, Sangaredi...typically produce 1–15 Mt of bauxite a year over a mine life of 20–40 years (Bardossy and Aleva, 1990)....2005–2013 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 |  | | Journal (article/letter/editorial) | | Physics, Monash University Clayton, Victoria 3168, Australia Abstract- 57 Fe Mossbauer spectra have been used...cleaning processes on the iron mineralogy of a Weipa, Australia, kaolin. A magnetically separated fraction...paper industry. Application of these techniques to Weipa kaolins is currently under investigation by Comalco...and surface Fe in a kaolin from Weipa, Cape York Peninsula, Australia. In this paper the effects on the...Comalco. The Weipa kaolin was cyclone-separated to remove coarse particles (predominantly quartz) and dried |  | | Journal (article/letter/editorial) | | Victoria 3168 , Australia Abstract-"Fe Mossbauer spectra of a cleaned Weipa, Australia, kaolin showed...ofthe iron mineralogy of the Weipa bauxite (Cape York Peninsula, Australia) and the clays underlying it...arising from paramagnetic structural iron in the Weipa and other commercial kaolins. We believe this to...2287, Australia. 2 Now at Department of Applied Physics, Capricomia LA.E., Rockhampton, Queensland, 4700...4700 Australia. Copyright © 1983, The Clay Minerals Society microprobe (e.g., Jepson and Rowse, 1975) |  | | Report (issue) | | ............................................. 6 Mine ..................................................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...(Mosier, 1986b). The Adoom mine in the Weipa bauxite deposit of Queensland, Australia, reports an estimated...The Darling Range bauxite deposits in Western Australia contain an estimated 900 to 1,000 million metric |  | | 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...both precipitationof alumina and removal of free quartz. In the transitionzone betweenthe high and 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 |  | | Journal (article/letter/editorial) | | to construct theoretical solubility diagrams for quartz, kaolinite, and gibbsite at room temperature and...a resuit of the dissolution of kaolinite unless quartz is absent from the system, the pH of the infiltrating...help explain why bauxites do not readily form on quartz rich rocks or in cooler regions where the pII of...deposits formed on kaolinitic sandstonesat Weipa, Queensland(Loughnan and Bayliss, 1961)is a natural occurrencewhich...Kittrick (1966b) Calculated from solubiiity of quartz of 6 ppm asSiOz (Morey, et aJ. 1962) Calculated |  | | Journal (article/letter/editorial) | | National University, GPO Box 4, Canberra, ACT 260 1, Australia (ReceivedJune 20, 1988; acceptedin revisedformSeptember20... with the exception of samples from northern Australia (north of approximately 20’S), which have anomalously...low values because meteoric waters in northern Australia are largely derived from monsoonal min. The high...the isotopic composition of meteoric waters in Australia since the mid-Tertiary. Pre-mid Tertiary clays...periods, perhaps early or mid Mesozoic, when Australia was at high latitude and the Australian climate |  | | Report (issue) | | 14 1. 2. 3. 4. 5. Asbestos ore Lead ore-Balmat Mine, N. Y. Chromite-chromium ore, Wash. Zinc ore-Friedensville.......................................... 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 |  | | Journal (article/letter/editorial) | | P.O. Box 1, Kensington, New South Wales 2033, Australia (Received 3 August 1982; revised 29 October 1982)...while the enclosing, much more permeable, micaceous quartz sands remained virtually unaffected. However, selectivity...bauxites, e.g. those of western India and northern Australia, where, despite development from a wide array...(1972). Dots represent workedareas. kaolinitic quartz sands, they persist as thick, continuous, blanket-like...the Nanafalia consists of marine strata, mostly quartz and glauconitic sands with some limestone, termed |  | | 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 others’ minds as they pursue |  | | Book | | University of New South Wales Kensington, N.S.W., Australia American Elsevier Publishing Company, Inc. New...to draft the diagrams. F. C. Loughnan Sydney, Australia January, 1969 vil 7 Fane 7 oe Aer as Gril...adjacent swamp region. TiOs-to-AlzO3 ratios for Weipa, Queensland and a South Wales ae (cec) and pH with...derived from the weathering of dolerites, Sydney, Australia . Weathering sequence of basaltic lavas, Hawaiian...Angus Cut profile developed on granite Western Australia Vertical section through the bauxite deposit |  | | Journal (article/letter/editorial) | | Geology, University of NSW, Kensington, NSW 2033, Australia. The recent discovery of dickite, intimately associated...pores or possibly replace pre-existing minerals in quartz-rich sandstones and conglomerates. Typical of the...quartzose sandstones in which the majority of the quartz grains have syntactic overgrowths while the accessory... comprising disordered kaolinite, fine grained quartz and partly degraded illite but devoid of dickite...samples from the Murrimba Colliery section. Q, quartz; K, ordered kaolinite; Kd, disordered kaolinite; |  | | Journal (article/letter/editorial) | | Darling RangesBauxites at Jarrahdale,Western Australia P. L. C. GRUBB Abstract Although the bauxite...bauxite depositsin the Darling Ranges of Western Australia overlie predominatelygranite-gneissBasementrocks...offers the most feasible explanation for the high quartz sand content and distinctive abraded heavy mineral...LATERITIC horizons cover much of south western Australia, yet as far as is known, areas containing economically...beenintermittently rejuvenated. Significantlyin Western Australia this uplandregionrepresentsthe easternhanging |  | | Journal (article/letter/editorial) | | Fithian Shale (18.5 pg), from halloysiteat the Dragon mine (2.83 pg), and from the PennsylvanianDrywood Underclay...contains the minerals kaolinite, illite, smectite, quartz, and alunite in decreasingamount (Keller, 1986)...in the underclay. Halloysite,as from the Dragon mine, is commonly formed in a sulfuric acid environment...distilled-water blank) except in the bauxite from Weipa, Australia. Because borosilicate glassware was used to...a hydrothermal deposit in Mexico and the Dragon mine halloysite are consistent with elevated B end-member |
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