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January
2006
Issue 88
The Tien Shan Belt: Golden Heart of Central Asia
T. M. (Mike) Porter*Porter GeoConsultancy Pty Ltd.
6 Beatty St., Linden Park, SA, 5065,Australia
Email: [email protected]
IntroductionThe Tien Shan Belt extends for
over 2500 km, from western Uzbeki-stan, through Tajikistan, Kyrgyzstanand southern Kazakhstan to westernChina, and represents the central partof the Altaid Orogenic Collage(Sengr et al., 1993; Sengr and Na-talin, 1996; Yakubchuk, 2004) of cen-tral Eurasia (Fig. 1).
Gold mineralization occurs in twoprincipal settings within the Tien ShanMineral Belt, namely as i) porphyryand epithermal systems developedwithin magmatic arcs, andii) orogenic-type gold deposits thatare structurally controlled, and tempo-
rally and spatially associated with latePalaeozoic, syntectonic to early post-collisional, highly evolved, I-typegranodioritic to monzonitic intrusivesin fore- and back-arc terranes (Coleand Seltmann, 2000; Yakubchuket al., 2002; Mao et al., 2004).
The porphyry and epithermal sys-tems include the vast Almalyk Com-plex of porphyry Cu-Au deposits (>5Gt @ 0.5% Cu, 0.4 g/t Au) comprisingthe connected Kalmakyr and Dalneedeposits to the south-east of Tash-
kent, Uzbekistan, and meso- to epi-thermal deposits such as Kochbulak(which contained around 135 tonnesof Au at grades averaging 12 g/t Au,120 g/t Ag) some 30 km northeast ofKalmakyr-Dalnee.
The orogenic-type gold depositsinclude the incomparable Muruntau(originally containing 5400 tonnes, or175 Moz, of gold at an open pit recov-ered grade of 3.4 g/t Au), the nearbyAmantaitau (primary and oxide re-sources of 700 tonnes, or 22.5 Moz,of Au at grades of 7.5 g/t Au), Dau-gyztau (180 tonnes of Au), Zarmitan(340 tonnes Au), J ilau (90 tonnes ofAu), Kumtor (550 tonnes, or17.5 Moz, of Au at grades of 2 to 6 g/tAu) and others (see Fig. 1).
These deposits are the subject ofTienShan 2006, an International
Study Tour being conducted by PorterGeoConsultancy Pty Ltd. in mid Sep-tember 2006. This professional de-velopment course is open to anyone,from anywhere in the world. Formore information go to http://www.portergeo.com.au.
Tectonic SettingThe contiguous Altaid and Trans-
baikal-Mongolian Orogenic Collages,of which the Tien Shan Belt is part,are made up of fragments of Neopro-terozoic to Mesozoic sedimentarybasins, island arcs, accretionarywedges and tectonically bounded ter-ranes, and are the product of a com-plex sequence of processes resultingfrom subduction, collision, transcur-rent movement and continuing tecton-ism. In broad terms, these collages
(Continued on page 4)
Inside this issue:
Data Metallogenica 6
EMG Volume 14 9
Mod. Course in Exploration
Geochemistry13
Calendar of Events 14
Fig. 1. Tectonic framework and distribution of gold ore deposits in the south-westernsection of the Tien Shan Mineral Belt. After Yakubchuk et al., (2002); Mao et al.,(2004) and others.
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200520052005---2006 GAC MINERAL DEPOSITS2006 GAC MINERAL DEPOSITS2006 GAC MINERAL DEPOSITS
DIVISION DIRECTORSDIVISION DIRECTORSDIVISION DIRECTORS
Chairperson: Jan PeterGeological Survey of Canada, 601 Booth Street, Ottawa, ONK1A 0E8; Tel: (613) 992-2376; Fax: (613) 996-3726
Email: [email protected]
Past Chairperson: Hendrik FalckNorthwest Territories Geoscience Office, Box 1500, 4601-B,52 Avenue, Yellowknife, NT X1A 2R3; Tel: (867) 669-2636;Fax: (867) 669-2725Email: [email protected]
Vice Chairperson: Suzanne ParadisNatural Resources Canada, 9860 West Saanich Road, Room
4718, Sidney, BC V8L 4B2; Tel: (250) 363-6732;
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Professional DevelopmentField Trips:Dani AlldrickBC Geological Survey, 5 - 1810 Blanshard Street, Victoria, BCV8T 4J 1; Tel: (250) 952-0412; Fax: (250) 952-0381Email: [email protected]
Short Course Coordinator: Steve PierceyMineral Exploration Research Centre, Dept. of Earth Sciences,Laurentian University, Ramsey Lake Road, Sudbury, ON P3E2C6; Tel: (705) 675-1151 ext. 2364; Fax: (705) 675-4898Email: [email protected]
Medals Commit tee and Website Manager:Dan MarshallDept. of Earth Sciences, Simon Fraser University, Vancouver,BC; Tel: (604) 291-5474; Fax: (604) 291-4198Email: [email protected]
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2January 2006 Gangue No. 88
Ross Sherlock (2003-2006)ESS/GSC-MRGB/CNGO, Natural Resources Canada, 626
Tumiit Building, P.O. Box 2319, Iqaluit, NU; Tel: (867) 979-
3539; Fax: (867) 979-0708Email: [email protected]
Steve McCutcheon (2003-2006)New Brunswick Department of Natural Resources, P.O. Box 50,
495 Riverside Drive, Bathurst, NB; Tel: (506) 547-2070;
Fax (506) 547-7694
Email: [email protected]
Gema Olivo (2003-2006)Geological Sciences, Queens University, Kingston, ON;
Tel: (613) 533-6998; Fax: (613) 533-6592
Email: [email protected]
Bob Cathro (2004-2007)
Cathro Exploration Corporation, 3230 Dogwood Road, RR #1Chemainus, BC, V0R 1K2; Tel: (250) 246-4738;
Fax: (250) 246-4738
Email: [email protected]
Steve Rowins (2003-2006)Department of Earth and Ocean Sciences, University of British
Columbia, Vancouver, BC; Tel: (604) 822-9561;
Fax: (604) 822-6088
Email: [email protected]
Rebecca Sproule (2004-2007)Department of Earth Sciences, Laurentian University, Sudbury,
ON, P3E 2C6; Tel: (705) 675-1151, ext. 1325;
Fax: (705) 675-4898
Email: [email protected]
Craig Hart (2004-2007)School of Earth and Geographical Sciences, The University of
Western Australia, 35 Stirling Highway, Crawley, Western Aus-
tralia, 6009, AU;
Email: [email protected]
Robert Carpenter(2005-2008)Committee Bay Resources, 625 Howe St., Suite 1440,
Vancouver, BC, V6T 2T6; Tel: (604) 220-0164
Email: [email protected]
Moira Smith (2005-2008)TECK COMINCO Limited, #600 - 200
Burrard Street, Vancouver, BC V6C3L9; Tel: (604) 640-5373;Fax: (604) 685-3069Email:[email protected]
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President: Damien DuffOntario Ministry of Northern Development and MinesWillett Green Miller Centre, 933 Ramsey Lake RoadSudbury, ON, P3E 6B5; Tel: (705) 670-5876;Fax: (705) 670-581Email: [email protected]
Past President: Reg OlsonAlberta Geological Survey, 4th Floor, Twin Atria 4999-98 Ave-nue, Edmonton, AB, T6B 2X3; Tel: (780) 427-1741;Fax: (780) 422-1459Email: [email protected]
Vice President: Steve McRobertsTeck-Cominco Ltd., PO Box 938, Stn. Main, Kamloops, BC,V2C 5N4; Tel: (250) 372-0032; Fax: (250) 372-1285Email: [email protected]
Vice President Elect: Chris Davis
Inco Technical Services Ltd., P.O. Box 1516, Capreol, ON,P0M 1H0; Tel: (705) 858-0386Email: [email protected]
Secretary/Treasurer: Laurie GaboritHigh River Gold Mines Ltd., Suite 1700, 155 University Ave-nue, Toronto, ON, M5H 3B7; Tel: (416) 947-1440; Fax: (416)360-0010Email: [email protected]
Publications: David SinclairGeological Survey of Canada, 601 Booth Street, 6th Floor,Room 675, Ottawa, ON, K1A 0E8; Tel: (613) 992-9810; Fax:
(613) 996-3726Email: [email protected]
Field Conference Coordinator:Position Vacant
200520052005---2006 CIM GEOLOGICAL2006 CIM GEOLOGICAL2006 CIM GEOLOGICAL
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Reg Olson (Awards)Alberta Geological Survey, 4th Floor, Twin Atria 4999-98 Ave-nue, Edmonton, AB, T6B 2X3; Tel: (780) 427-1741; Fax (780)
422-1459Email: [email protected]
George OReill y (Bulletin Associate Editor)Nova Scotia Department of Natural Resources, P.O. Box 698,Halifax, NS, B3J 2T9; Tel: (902) 424-2517; Fax: (902) 424-0527Email: [email protected]
Jeremy Richards (EMG Editor)Department of Earth and Atmospheric Sciences, University of
Alberta, Earth Sciences Building Room 3-02, Edmonton, AB,
T6G 2E3; Tel: (780) 492-3430; Fax: (780) 492-2030
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search/University Visiting Lecturer)Department of Geology, Lakehead University, 955 Oliver Road,
Thunder Bay, ON, P7B 5E1; Tel: (807) 343-8463; Fax: (807)
346-7853
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Tom Schroeter(Special Volumes Editor)British Columbia Geological Survey, Vancouver Mineral Devel-
opment Office, Mining and Minerals Division, Suite 300-865
Hornby Street, Vancouver, BC, V6Z 2G3; Tel: (604) 660-2812
Email: Tom. [email protected]
David Lentz (Public Affairs/Education)
University of New Brunswick, Department of Geology, PO Box4400, Fredericton, NB, E3B 5A3; Tel: (506) 453-4804; Fax:(506) 453-5055Email: [email protected]
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1140, Timmins, ON, P4N 7B5; Tel: (705) 264-5200, ext. 8231;
Fax: (705) 267-8874
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Phil Thurston (Sudbury Section Representative)Mineral Exploration Research Centre, Laurentian University,
Sudbury, ON, P3E 2C6; Tel: (705) 675-1151, ext. 2372
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Phil Olson (Saskatoon Section Representative)Claude Resources Inc., 214 Coben Cr., Saskatoon, SK, S7S1B3; Tel: (306) 244-6916;Email: [email protected]
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represent a Palaeozoic subduction-accretion complex on the Palaeo-Tethys Ocean margin of the proto-Eurasiancontinent that was active from the Neoproterozoic to the end of the Permian. Over much of this period, the proto-Eurasian continent was separated from the Palaeo-Tethys Ocean by the broad Khanty-Mansi back-arc basin, and byPalaeozoic magmatic arcs and micro-continental slivers of Precambrian rocks between the back-arc basin and theocean (see Seltmann and Porter, 2005, for more detail).
The Tien Shan Belt is composed of three main elements, the North, Central and South Tien Shan, each sepa-rated by a major suture/structural zone (Fig. 1). The North Tien Shan is composed of Proterozoic basement andNeoproterozoic to early Palaeozoic magmatic arc rocks of the Baikalides and pre-Uralides developed on the marginof the proto-Eurasian continent. To the south of the Nikolaev Line, the Central Tien Shan comprises remnants of theLate Devonian to Carboniferous Valerian-Beltau-Kurama magmatic arc, formed by subduction of oceanic crust of theKhanty-Mansi back-arc basin below the earlier arcs and micro-continental slivers separating the back-arc basin fromthe Palaeo-Tethys Ocean.
The South Tien Shan represents the south-western limb of the giant Kazakh Orocline and is found to the south ofthe Southern Tien Shan Suture. It was formed by compression related to the closure of the Khanty-Mansi back-arcbasin during the Permian and collision between the contiguous Karakum and Altai-Tarim micro-continents to thesouth with the main proto-Eurasian mass to the north. This led to intense deformation of the sedimentary pile withinthe Khanty-Mansi back-arc basin, development of nappe structures, and north-verging under-thrusting of the Kara-kum and Altai-Tarim micro-continents below the Valerian-Beltau-Kurama arc (Yakubchuk et al., 2002).
Gold-Bearing Deposits of t he Tien Shan BeltWhile the orogenic-type gold deposits of the Tien Shan are not directly related to porphyry systems, they are a
product of the same larger scale metallogenic evolution and set of tectonic processes as the gold-rich porphyry andepithermal deposits of the Tien Shan Belt.
Moreover, although belonging to two different terrane settings, the giant Cu-Au porphyries of the Almalyk districtin the Valerianov-Beltau-Kurama magmatic arc of the Middle Tien Shan, and the giant orogenic Au deposits hostedby the black-shale series of the Central Kyzylkum slate belt of the South Tien Shan Khanty-Mansi accretionary com-plex, have some striking similarities. These hint at crust-mantle interaction and dominance of a deep-seated regimeduring emplacement, referred to as the "Chatkal-Kurama hot spot" (I.M. Golovanov, pers. comm.; Dalimov et al.,2003). They are temporally close (315 to 285 Ma, Seltmann et al., 2004), their isotope signatures reveal the incor-poration of a moderate mantle component (Chiaradia et al., 2005), and geophysical patterns from the middle crust inthe region exhibit zones of low reflection indicating the existence of extended mafic bodies just beneath both giantore-magma systems (S. Cherkasov, pers. comm.).
The orogenic gold deposits of the Tien Shan Mineral Belt, as listed above, include some of the largest economicgold accumulations in the world, and span the time scale from Lower to Late Palaeozoic. The greatest concentration
of significant orogenic gold deposits however, is in the southwestern part of the belt, in the South and Middle TienShan of Uzbekistan and Kyrgyzstan. These deposits are associated with Permian magmatism emplaced during thefinal- to early post-collisional stages of orogenesis, within a sutured back-arc setting containing carbon-rich sedimen-tary sequences (Cole and Seltmann, 2000; Yakubchuk et al., 2002; Mao et al., 2004).
The orogenic gold deposits of the South Tien Shan are controlled by structures related to the Southern Tien ShanSuture Zone that separates the Middle and South Tien Shan terranes. They are hosted by the back arc accretionarycomplex deposited in the basin that had separated the Valerianov-Beltau-Kurama magmatic arc and the Karakumand Altai-Tarim micro-continents (Fig. 1). The suture zone is defined by ophiolites and borders the strongly de-formed fold and thrust belt of the South Tien Shan that has been extensively intruded by Permian granitoids andhosts most of the significant orogenic-style gold deposits (Mao et al., 2004).
Most of the orogenic-gold deposits within the Tien Shan are located at mesozonal crustal levels, within Late Pa-laeozoic granitoid intrusives or their contact metamorphic aureoles, and yield radiometric dates of mineralization co-incident with the magmatism. However, few can be shown to have a direct genetic link with the associated intru-sives. Never-the-less, geochemical, isotope and fluid-structural models have implicated highly evolved Late Palaeo-zoic, syntectonic I-type granitoids as the source of metals and/or fluids for spatially associated orogenic gold depos-its within the belt. The gold-quartz vein systems produced appear to represent only part of a larger magmatic-hydrothermal system that often includes earlier scheelite (Au) skarn mineralization (e.g., Zharmitan in Uzbekistanand J ilau in Tajikistan, while Muruntau, also in Uzbekistan, exhibits some similarities). In these examples, Au and Woccur together with characteristic enrichments of As, Bi, Mo and Te deposited from CO2-rich fluids at temperaturesof up to 400 C and pressures of approximately 2 Kbar (Cole and Seltmann, 2000).
(Continued frompage 1)
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January 2006 Gangue No. 88 5
The distribution of the granitoids and the associated gold deposits are both controlled by the same regional deepseated faults and shear zones that were the primary focus of regional fluid flow and of deformation. Mineralizationappears to have been formed by CO2-rich fluids of deep crustal origin that episodically escaped from geopressuredreservoirs along major high angle reverse faults and deposited gold in zones of local structurally enhanced permeabil-ity (Cole, 1998; 2002).
Cole and Seltmann (2000) note that a general trend can be recognised in these granitoid related systems, whereW, in the form of scheelite, dominates in mesozonal, more reduced settings, whereas Cu substitutes for W in the par-agenesis of epizonal, more oxidized systems. They also observe that these same Late Palaeozoic (Variscan-Hercynian) granitoids are temporally, mineralogically, compositionally and isotopically similar, whether related to oro-
genic-style Au-W veins and associated skarn systems in the South Tien Shan fore-arc accretionary complex, or re-lated to shallower porphyry Cu-Au systems in the magmatic arc of the Middle Tien Shan. They suggest a continuum,which would encompass classic Cu-Mo-Au porphyry, Cu-Au skarn and Au-Ag epithermal deposits in epizonal crustalenvironments/levels, passing down into W-Mo-Au with associated Bi-As-Te associations in skarn, lode and stockworkdeposits (i.e., orogenic-style Au) at mesozonal depths.
ReferencesChiaradia, M., Konopelko, D., Seltmann, R., & Cliff, R., 2005. Lead sources in ore deposits and magmatic rocks of the Tien Shan
and Chinese Altay, in Mao, J .W. et al., eds., Mineral Deposit Research: Meeting the Global Challenge, Proceedings of theEighth Biennial SGA Meeting, Beijing, China, p. 1301-1304.
Cole, A., 1998. Gold mineralisation in the southern Tien Shan, Central Asia: tectonic setting, characteristics and regional explora-tion criteria. Program and Abstracts, Geological Society of London, Mineral Deposits Studies Group Annual Meeting, v. 22,p. 27.
Cole, A., 2002. The Great Silk Road paved with gold. International Mining and Minerals, No. 48, pp. 13-15.
Cole, A. & Seltmann, R., 2000. The role of granitoids during Variscan orogenic gold mineralization in the Tien Shan and Uralmountain belts of central Eurasia, in Bouchot, V. & Moritz, R., eds., Orogenic Gold Deposits in Europe, Editions BRGM, v.297, p. 110-111.
Dalimov, T.N., Ganiev, I.N., & Ishbaev, Kh.D., 2003. The Chatkal-Kurama "hot spot" and history of magmatic evolution.- Ge-ologiya i Mineral'nyie Resursy (Geology and Mineral Resources), Tashkent, v. 5 (5), pp. 3-14 (in Russian).
Mao, J ., Konopelko, D., Seltmann, R., Lehmann, B., Wen Chen, Yitian Wang, Eklund, O., & Usubaliev, T., 2004. Postcollisionalage of the Kumtor gold deposit and timing of Hercynian events in the Tien Shan, Kyrgyzstan. Economic Geology, v. 99, p.1771-1780.
Seltmann, R. & Porter, T.M., 2005. The Porphyry Cu-Au/Mo Deposits of Central Eurasia: 1. Tectonic, Geologic & MetallogenicSetting and Significant Deposits, in Porter, T.M., ed., Super Porphyry Copper & Gold Deposits: A Global Perspective; PGCPublishing, Adelaide, v. 2, p. 467-512.
Sengr, A.M.C., Natalin, B.A., & Burtman, V.S., 1993. Evolution of the Altaid tectonic collage and Paleozoic crustal growth inEurasia. Nature, v. 364, p. 299-307.
Sengr, A.M.C. & Natalin, B.A., 1996. Palaeotectonics of Asia: Fragments and synthesis, inYin, A. & Harrison, M., eds., The Tec-tonic Evolution of Asia, Cambridge University Press, p. 486-640.
Yakubchuk, A., 2004. Architecture and mineral deposit settings of the Altaid orogenic collage: a revised model. J ournal of AsianEarth Sciences, v. 23, p. 761-779.
Yakubchuk, A.S., Cole, A., Seltmann, R., & Shatov, V., 2002. Tectonic setting, characteristics and regional exploration criteria forgold mineralization in central Eurasia: The southern Tien Shan province as a key example, in Goldfarb, R. & Nielsen, R.,eds., Integrated Methods for Discovery: Global Exploration in Twenty-First Century, Society of Economic Geologists, SpecialPublication No. 9, p. 177-201.
*This article is an edited extract from Seltmann and Porter (2005).
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DATA METALLOGENICA BUILDING THEGLOBAL ENCYCLOPEDIA OF ORE DEPOSITS
Dr. Alan GoodeProject Director, Data Metallogenica
AMIRA InternationalLevel 2, 271 William StMelbourne, Australia
Over the past 7 years, AMIRA International with the help of over 100 sponsors (mining companies, government or-ganisations and professional societies) from around the globe has been building the foundations of a communityworld encyclopedia of ore deposits through its projectData Metallogenica(www.datametallogenica.com). There isalready an impressive amount of material available on the website (over 6 gigabytes), much of it unique, which isbeing continuously augmented with new material. Data Metallogenica(DM) is self-funding through sponsorships andannual subscriptions but is not-for-profit.
The primary objectives ofData Metallogenica are to be:
A primary web portal for high-level information on global ore deposits.
An information source and rock reference base for experienced geologists, analysts and regulators.
A training resource for younger geologists in companies.
An education and research resource for students and teachers at universities.
A permanent and easily accessible repository of much fragile and transient data held by individuals and com-panies an ultimate world encyclopaedia of mineral deposits.
A fast integrated link to detailed and supporting quality data sets elsewhere, including commercial providers,government surveys and university research groups.
North American sponsors include professional organisations such CIM, PDAC, AME BC and SEG, governmentgroups such as the GSC, USGS, and several Canadian provincial geological surveys (Alberta, British Columbia,Saskatchewan), and major companies such as Barrick, Cameco, Newmont, Phelps Dodge and Teck Cominco.
The original nucleus of DM is a major collection of representative samples from over 3000 deposits in over 70 coun-tries acquired from Professor Peter Laznicka (formerly University of Manitoba), and has since increased to total over70,000 samples. These have been photographed at very high quality and placed on the DM website. While the col-lection is still growing, major current emphasis is now being placed on adding deposit descriptions and data galleriesof maps, sections, and field and petrographic photographs. These are being provided by companies and individuals,with the aim of making DM a globally accessible repository of all types of technical data on ore deposits, past, pre-sent and future. Recent additions are listed on the News page of the website.
A recent innovation has been the addition of full text PhD theses, with increasing numbers being offered by studentskeen to share their knowledge with others. Examples of theses currently being loaded include:
Textural evolution of the Hellyer Massive Sulphide Deposit (Gary McArthur, 1996)
The setting, geometry and timing of intrusion-related hydrothermal systems in the vicinity of the Batu Hijau por-phyry copper-gold deposit, Sumbawa, Indonesia (Steve Garwin, 2000)
Metallogenesis of the J ales Au District, Northern Portugal (Diogo Rosa, 2001) Geology and Genesis of the Bulyanhulu Gold Deposit, Sukumaland Greenstone Belt, Tanzania (Claire Cham-berlain, 2003) Magmatic and Hydrothermal Evolution of the Cripple Creek Gold Deposit, Colorado, and Comparisons with Re-gional and Global Magmatic-Hydrothermal Systems Associated with Alkaline Magmatism (Eric J ensen, 2003) Structural and Geochemical Evolution of the Rosario Copper-Molybdenum Porphyry Deposit and Related Cop-per-Silver Veins, Collahuasi District, Northern Chile (Glen Masterman, 2003)
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The Upper Critical and Lower Main Zones of the eastern Bushveld Complex (Charlie Seabrook, 2005)
The geology, timing of mineralisation, and genesis of the Menninnie Dam Zn-Pb-Ag Deposit, Eyre Peninsula,South Australia (Mike Roache, 1996) this intrusive-related deposit is coeval with the Olympic Dam mineralisationevent Geology and Genesis of the Mammoth Cu Deposit, Mt Isa Inlier, Australia (Darryl Clark, 2003)
In the meantime, a separate AMIRA project (P874Australian Geoscience Thesis Database) has commenced withthe support of 14 sponsors and the contributing university departments the aim is to develop a complete Australian
geoscience thesis database, including short summaries of each thesis related to mineralization. Almost 10,000 titlesare already listed. This neglected data resource will become easily accessed via the Internet. Although access willinitially be confined to sponsors, the database will later be included in DM, and thesis listings from universities inother countries will also be progressively added (several contributions from North American universities are alreadyon hand). Together with the full text theses, this will provide a valuable information resource for all exploration andmining companies as well as researchers around the world.
Data Metallogenica would greatly appreciate any form of support from the readers of GANGUE, including data suchas PowerPoint presentations or descriptions of individual deposits or mineral districts, digital theses, or simply finan-cial support through annual subscription or sponsorship to allow this work to continue. Bona-fide individuals can sub-scribe for as little as US$75 per year. Given the current foundation of information, DM represents a wonderful andtimely opportunity to preserve knowledge from past as well as current and future mineral deposits around the globefor the benefit of the whole mining industry and its associated education institutions. An excellent start has been
made but there still remains a very great deal to do.
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Exploration and Miningxploration and MiningGeologyeologyCIMs quarterly journalIMs quarterly journalVolume 14 (2005) ofEMGis now available! Future vol-umes will include special volumes on mineral depositsof the Bathurst Mining Camp, pegmatites, and Protero-zoic gold deposits.
Volumes 11, 12, 13, and 14 are available to membersof MDD at a special affiliated rate of $CDN 75/ $US55. Special offer: order Volume 12 and receive Volume11 at no additional cost! To purchase these volumes,contact Jo-Anne Watier at CIM (Tel.: 514-939-2710 ext1311; email: [email protected]).
Volume 14, Nos. 1-4, January October 2005(Published April 2006)Table of ContentsA Review of Rare-Element (Li-Cs-Ta) Pegmatite Exploration Techniques for the Superior Province, Can-ada, and Large Worldwide Tantalum Deposits
J.B. Selway, F.W. Breaks, and A.G. Tindle
The Nature and Distribution of Tantalum Mineralization in Pegmatite Dikes, Lilypad Lakes Property,
Fort Hope, Northwestern OntarioR.P. Taylor, J.C. Pederson, D.S. Bubar, I.C. Campbell, K. Rees, and J. A. Morgan
The Aubry Pegmatites: Exploration for Highly Evolved Lithium-Cesium-Tantalum Pegmatites in North-ern OntarioP.M. Dimmell and J.A. Morgan
Une Corrlation Gntique entre les Roches Granitiques, et les Dpts luvionnaires, Colluvionnaireset Alluvionnaires de Columbo-Tantalite d'Issia, Centre-Ouest de la Cte d'IvoiresB.A. Allou, H-Z Lu, J. Guha, J. Carignan, J., Naho, K. Pothin, and R. Yobou
Zircon-Rich Ta-Nb-REE Mineralization in the McKeel Lake Pegmatite-Aplite System, Welsford Intru-sion, Southwestern New Brunswick
J.K. Seidler, D.R. Lentz, D.C. Hall, and N. Susak
Re-Os Model Age Constraints on the Genesis of the Moss Molybdenite Pegmatite-Aplite Deposit,Southwestern Grenville Province, Quyon, Quebec, CanadaD.R. Lentz and R.A. Creaser
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AnnouncementThe Canadian Institute of Mining's Barlow Memorial Medal for the besteconomic geology paper in 2005/2006 was awarded to Garth Kirk-ham, Hendrik Falck, andJames Siddorn. The award winning paper
was entitled, An integrated 3-D Model of the Yellowknife Camp: A toolfor efficient development, which was published in Volume 12 of Explo-ration and Mining Geology (Nos. 1-4, p. 49-59). This award was estab-
lished in 1916 as a memorial to Alfred Ernest Barlow, President of theInstitute from 1912-1919, and distinguished for his contributions toour knowledge of Precambrian geology.
Congratulations guys!!
Left: J ames Siddorn and
Garth Kirkham with the
CIM Barlow Memorial
award; right: HendrikFalck, co-author of the
award-winning paper.
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11January 2006 Gangue No. 88
Readings in Historical Metallurgy: Changing Technology in Extractive MetallurgyReadings in Historical Metallurgy: Changing Technology in Extractive MetallurgyReadings in Historical Metallurgy: Changing Technology in Extractive MetallurgyAuthor: Fathi HabashiAuthor: Fathi HabashiAuthor: Fathi Habashi
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12January 2006 Gangue No. 88 12January 2006 Gangue No. 88
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13January 2006 Gangue No. 88 13January 2006 Gangue No. 88
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MEETINGS, WORKSHOPS, & FIELDTRIPSEETINGS, WORKSHOPS, & FIELDTRIPSEETINGS, WORKSHOPS, & FIELDTRIPS2006 August 21-24 - 12th Quadrennial IAGOD Symposium, Understanding the Genesis of Ore Deposits - to meet the Demands of the
21st Century, Moscow, Russia; http://www.iagod.sgm.ru/; contact: [email protected]
September 10-15- CIM Geological Society Field Conference; Uranium: Athabasca Deposits and Analogues, Saskatoon, SK;http://www.saskuranium2006.ca; contact: [email protected]
September 18-29- Modular Course in Mineral Exploration in Volcanic Terrains, Laurentian University, Sudbury, ON;http://earthsciences.laurentian.ca; contact: [email protected]
October 1-4 - COM 2006 The Conference of Metallurgists, Montreal, PQ; contact: [email protected]
October 22-25 - Geological Society of America Annual Conference, Philadelphia, PA; http://www.geosociety.org/meetings
December 6-15 - Modular Course in Exploration Geochemistry, Laurentian University, Sudbury, ON;http://earthsciences.laurentian.ca; contact: [email protected]
2007 J anuary 29-February 1 - Mineral Exploration Roundup 2007, The Westin Bayshore, Vancouver, BC;
http://www.amebc.ca/roundupoverview.htm; contact: [email protected]
March 4-7 - PDAC 2007 International Convention, Metro Toronto Convention Centre, Toronto, ON;http://www.pdac/conv/index.html
April 29-May 2 - 2007 CIM Conference and Exhibition, Palais de Congrs de Montral, Montreal, PQ; contact: [email protected]
May 23-25- GAC/MAC Annual Meeting 2007, Y ellowknife, NWT; http://www.nwtgeoscience.ca/gac_mac
August 20-24 - 9th Biennial SGA Meeting, Dublin, Ireland; http://www.e-sga.org/sga.html
September 24-30- Ores and orogenesis: Circum-Pacific Tectonics, Geological Evolution, and Ore Deposits, Tucson, Arizona;http://www.agssymposium.org/
14January 2006 Gangue No. 88
Information for Contributors:
The Gangue began as a quarterly publication assembled by the
Mineral Deposits Division of GAC, which was distributed to itsmembers in hard copy form. In 2005, MDD and the Geological
Society of CIM decided to join forces and jointly publish the
Gangue. The Gangue is currently distributed to members of
MDD and CIM-GeolSoc as an online publication. The Mineral
Deposits Division of the Geological Association of Canada is
Canadas foremost society for promoting the study of mineral
deposits by supporting local and national meetings, symposia,
short courses and field trips. We sponsor the publication of re-
search relating to ore deposits and metallogeny, and recognize
the contributions of outstanding Canadian economic geologists
by annually awarding the Duncan Derry and William Harvey
Gross medals and the J ulian Boldy Certificate.
Publication Schedule:SUBMISSION DATE
December 15 J anuary
March 15 April
J une 15 J uly
September 15 October
The objective of this newsletter is primarily to provide a forum for
MDD and CIM-Geological Society members and other profes-
sionals to voice new ideas, describe interesting mineral occur-
rences or expound on deposit models. Articles on ore deposits,deposit models, news events, field trips, book reviews, confer-
ences, reprints of presentations to companies, mining groups or
conferences, or other material which may be of interest to the
economic geology community are welcome. Manuscripts should
be submitted by email in WP or WORD format. A printed version
should be mailed or FAXed. Illustrations should be camera-ready
(ideally as CDR digital files); photos should be of good quality.
Short items dealing with news events or meetings can be sub-
mitted by FAX, postal mail or email. Contributions may be edited
for clarity or brevity.
For Information & Submiss ions:
Kay ThorneTHE GANGUENB DNR-MineralsPO Box 6000, Room 150
Fredericton, NB E3B 5H1
Email: [email protected]
Tel: (506) 453-2206
Fax: (506) 453-3671
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