 | | Journal (article/letter/editorial) | | assemblages at the Viceroy Mine, Harare-Bindura-Shamva greenstone belt, Zimbabwe T. OBERTHÜR* AND T. W...2008] ABSTR ACT Gold mineralization at the Viceroy Mine is hosted in extensional veins in steep shear zones...zones that transect metabasalts of the Archaean Arcturus Formation. The gold mineralization is generally...liquid/melt-collecting mechanism was probably active at Viceroy Mine, where the distinct Au-Bi-TeS assemblage either...Archaean, Viceroy and Mazowe Mines, Zimbabwe, Passagem de Mariana Mine, Brazil. Introduction FOR a long |  | | Journal (article/letter/editorial) | | the Freda-Rebecca gold deposit ± Bindura District, Zimbabwe Received: 4 January 1999 / Accepted: 13...Abstract The Freda-Rebecca Mine is currently the largest gold producer in Zimbabwe. The ore deposit is hosted...clinozoisite/epidote, quartz, calcite, arsenopyrite, pyrite, pyrrhotite, chalcopyrite. Phase 2. Chlorite, epidote, calcite...``upper greenstones'' are represented by the ``Arcturus Formation'', which consists of a thick pile of...terrigenous metasediments are intercalated in the Arcturus Formation. Metasediments and felsic metavolcanic |  | Oberthür, T., Blenkinsop, T. G., Hein, U. F., Höppner, M., Höhndorf, A., Weiser, T. W. (2000) Gold mineralization in the Mazowe area, Harare-Bindura-Shamva greenstone belt, Zimbabwe: II. Genetic relationships deduced from mineralogical, fluid inclusion and stable isotope studies, and the Sm-Nd isotopic composition of scheelites. Mineralium Deposita, 35 (2) 138-156 doi:10.1007/s001260050012 | Journal (article/letter/editorial) | | Mazowe area, Harare-Bindura-Shamva greenstone belt, Zimbabwe: II. Genetic relationships deduced from mineralogical...In the Mazowe area some 40 km NW of Harare in Zimbabwe, gold mineralization is hosted in a variety of...the mainly granodiorite-hosted workings at Mazowe mine are on pyrite-rich reefs, mines of the Bernheim...arsenopyrite-rich ores, and Stori's Golden Shaft and Alice mine, both in metabasalts, work sul®de-poor quartz veins...Department, University of Zimbabwe, P.O. Box MP 167, Mount Pleasant, Harare, Zimbabwe U.F. Hein Institut fuÈr |  | Hofmann, Axel, Bekker, Andrey, Dirks, Paul, Gueguen, Bleuenn, Rumble, Doug, Rouxel, Olivier J. (2014) Comparing orthomagmatic and hydrothermal mineralization models for komatiite-hosted nickel deposits in Zimbabwe using multiple-sulfur, iron, and nickel isotope data. Mineralium Deposita, 49 (1) 75-100 doi:10.1007/s00126-013-0476-1 | Journal (article/letter/editorial) | | models for komatiite-hosted nickel deposits in Zimbabwe using multiple-sulfur, iron, and nickel isotope...ca. 2.7 Ga volcano-sedimentary sequences of the Zimbabwe craton. At both mines, nickel sulfide mineralization...these competing models. Massive ores at Shangani Mine show mass-dependent fractionation of sulfur Editorial...mass-independent Δ33S values in ore samples from Trojan Mine likely reflects high-temperature assimilation of...Fe isotope values of some samples from Shangani Mine are more fractionated than expected to occur in |  | | Journal (article/letter/editorial) | | Department of Geology, University of Zimbabwe, MP167, Harare, Zimbabwe (Manuscript ucceptecl July 14, 1997)...structural metamorphic data froni the Trojan nickel mine area i n the Shamva-Bindura Greenstone Belt (SBGB)...stratigraphy, while metamorphic conditions in the mine area reached about S O O T at pressures of 3-4 kbar...occurs along the boundary ofthe lron Mask and Arcturus Formations. DJM? structures are related to doming...rccrystallisation of M, assemblages. M? temperatures in the mine area reached 565°C. Such high contact metamorphic |  | | Journal (article/letter/editorial) | | porphyrycopperdepositin the Robinson miningdistrict,east centralNevada,represents the easternextremityof...pophyses of a largerpluton that underlies the district. Prior to intrusionthe sedimentaryrockswere folded...emplacementof an earlyquartzmonzoniteporphyrypluton.In the mine areathisintrusionis cylindricaland plunges25ø westwith...sulfide-richgarnet-pyroxene skarnselsewherein the district,the predominantskarntype at Ruth is a massivegarnetskarnlow...a magnetite-rich zonewhichalsocontains pyrite,pyrrhotite,and chalcopyrite. Early quartz monzoniteporphyry |  | | Report (issue) | | .......................... . Situation of the district ...................................................................... General geology of the district ........................................................................................... . Arcturus limestone ........................... ~ ........40 41 41 4 CONTENTS. General goology of the district-Continued. Structure ........ ~ . . . . . . .... . . . . . . . . . . . . . . . . Composition of mine water ........................... ·. . . . . . |  | | Report (issue) | | interest in the geo logy and mineral resources of Zimbabwe which followed the removal of United Nations sanctions...original Bulletin is the insertion of Table IIIA, Zimbabwe Mineral Production and Value, on page 114A. Due...for views of Wankie Colliery and the Trojan nickel mine, and to the Photographic Section of the Ministry...near Salisbury. facing page 23 IV Trojan Nickel Mine, near Bindura. facing page 33 V The Great Dyke...Complex. VI Chrome seam in the Great Dyke, Vanad Mine. VII Lower Karoo Landscape. No. 1 Colliery, Wankie |  | | Journal (issue) | | Geological Society of Zimbabwe Newsletter February, 2009 Geological Society of Zimbabwe G Z S Newsletter...SOCIETY OF ZIMBABWE, P.O. BOX CY 1719, CAUSEWAY, HARARE Geological Society of Zimbabwe Newsletter ... 4 The Indigenisation of the Mining Sector in Zimbabwe, A Reality Check and Practical Perspective .……...9 Open Pit Operations and Grade Control at Ngezi Mine ...…………………………………….. 9 Use of a Niton XRF instrument...………. 15 History of Oil and Gas Exploration in Zimbabwe ……………………………………………. 15 Archean Komatiitic Sill-hosted |  | | Journal (issue) | | Oourte,v of Beo.r Mountain Bridge Oo. View looking east from top of BeaT Mountain, Orange County, New York...collectora for miles around will tTek to the Pyrrhotite :Mine located about a mile and a half in from the...QUARTERLY 1933 If ,t J r The Anthony~s Nose Pyrrhotite Mine -By- PETER Z()DAC' Editor, Roc•ks a11d .lli11...111i11erals. ) You would look in vain for the pyrrhotite mine were you to come ~o Peekskill with the express...copper mine, man y iron and emery mines, a n d even a gold nline but no-what d id you call it mine? Well |  | | Journal (article/letter/editorial) | | miles beyondthe ore deField work in the Robinson district was carried posit and its alteration aureole....aid in explorationfor madethroughall areasof the district, but the major concealeddeposits. effort consistedof...operatingmines at a scale mining districtnear Ely, east-centralNevada, have of 1:1,200. Mining operationsprovided...5 per(1957) mappedthe mine geologythen exposedat the •vest end of the district, and Fournier (1958, cent...chiet•competitor,in 1958 and conductedunified studies of the district (Bauer et al., 1960, 1964, 1966). Recentlythe |  | | Report (issue) | | Gold in the Bingham District, Utah By EDWIN W. TOOKER Gold in the Butte District, Montana By EDWIN W...W. TOOKER Gold in the Ely (Robinson) Copper District, White Pine County, Nevada By LAURENCE P.JAMES ...Gold in the Bingham District, Utah / by Edwin W. looker Gold in the Butte District, Montana / by Edwin...Edwin W. looker Gold in the Ely (Robinson) Copper District, White Pine County, Nevada / by Laurence P. James... 89-600379 CIP CONTENTS Gold in the Bingham district, Utah Abstract El Introduction E2 Production and |  | | Journal (issue) | | Speaking 3 T5I California Convention 4 Yogo Sapphire Mine Reopened 4 Alpha Counters 5 Berkeley Cass iter ite...WILL PROBABLY BE HELD AT OAKLAND, CALIF., WITH THE EAST BaY MINERAL Society as officiating host. Final decision...States. YOGO SAPPHIRE MINE REOPENED A REOPEN INC OF THE FAMED YOGO~ 'SAPP H I RE MINE, IN THE LITTLE BELT...scheduled TO BEGIN THIS MONTH, UNDER NEW OPERATORS. THE MINE HAS BEEN IDLE SINCE 1929, AFTER HAVING PRODUCED...Mountains The Yogo mine has the distinction of being the only lode vein SAPPHIRE MINE IN THE WORLD, SINCE |  | | Report (issue) | | accurate and are still useful. The Merrimac mining district at Lone Mountain was discussed briefly by W....argillite, and siltstone predominate south of an east-west line drawn at the latitude of Double Mountain...one mile WSW of spring at sharp bend in road, Coal Mine Canyon. Identifications and age by John W. Huddle...one mile WSW of spring at sharp bend in road, Coal Mine Canyon. Identifications and age by John W. Huddle...and probably pyrrhotite. Analyses of three composite samples of pyrite and pyrrhotite(?) revealed an |  | | Journal (issue) | | IMPERIAL iNSTITtJT� administrative appointments in East and West Africa. Instruction in these Courses in...Committee for India Sir C. C. McLEOD, Chairman, East India Section, London Chamber of Commerce (Cha.innan)...charcoal and tar. There is a large demand in the East for acetic acid, and possibly the wood naphtha would...grown in Boyaca appears to be indigenous to the district, and is apparently the same type that was cultivated...of the African oil palm in Malaya and the Dutch East Indies and to the satisfactory results which have |  | | Book | | USSR Academy of Sciences, Chernogolvka, Moscow district, U . S . S . H . J. Foden, Bureau of Mineral Resources...Rhodesia, Box M.P. 167, Mount Pleasant, Harare, Zimbabwe. R.W. Ojakangas, Department of Geology, University...O. B o x . MP. 1 6 1 , Mount Pleasant, Harare, Zimbabwe. B.F. Windley, Department of Geology, University...MINERALISATION IN THE EARLY PRECAMBRIAN CRUST OF ZIMBABWE J.F. Wilson and T.H.C. Nutt 555 MINERAL OCCURRENCES...631 LITHIUM PEGMATITES OF AMARESHWAR, RAICHUR DISTRICT, KARNATAKA, INDIA T.C. Devaraju, N. Rajshekhar |  | | Journal (article/letter/editorial) | | 102, pp. 1129–1155 Bald Mountain Gold Mining District, Nevada: A Jurassic Reduced Intrusion-Related...Colorado 80209 Abstract The Bald Mountain mining district has produced about 2 million ounces (Moz) of Au...deposits (Fig. 1A) include the Battle Mountain district (Theodore, 2000) and the world-class Bingham deposit...porphyry-related Cu deposit at the small Victoria mine in the Dolly Varden Mountains (Atkinson et al.,...Profett, 2000). The Bald Mountain mining district is in east-central Nevada, about 115 km south-southeast |  | | Report (issue) | | Talapoosa and Olinghouse districts and the Gooseberry mine. Northeast of Lovelock we pass through Roberts'...Silver deposit hosted in Tertiary rhyolitic rocks. East of Golconda we enter the Getchell trend which Roberts...strong lithologic and structural control. Further east, as we cross the main Battle Mountain-Eureka trend...and perlite forms the summit of Washington Hill east of the altered zone. Scattered low-grade gold values...the hills north of Sparks in the WEDEKIND mining district. The Wedekind ores consisted of silver halo ids |  | | Report (issue) | | 323 A. Rifle area, Colorado «0s... 323 B. Uravan District, Colorado 324 Cope tick Rock DIsEEIcL sCoLoradO)...324 DeeGkante District, New sMext Comer. clecetsls cused cists! 0/0 326 E. Shiprock District, Utah—Arizona...Utah—Arizona ....vccccsnens F. Monticello-Moab-Thompsons District, Utah .....secvceee 326 327 ee eeseeee Gig GE...between galena sphalerite, Darwin Lead-Silver-Zinc mine, Inyo County, California, Econ. Geol., v. 66, p... study mine, of the '"'B" limestone Bingham mining The age of porphyry-type district, 66, p. |  | | Report (issue) | | United States 8 Background Impact of the Hemlo district upon future annual Canadian gold output Total...availability Annual gold production potential Hemlo gold district 20 22 industry profitability Annual production...Australia Historical perspective Composition of mine production of gold, 1970-83 Minor primary gold operations...countries The Philippines Papua New Guinea Chile Zimbabwe Colombia Dominican Republic Ghana Peru Mexico...operations of the Far West Rand, West Rand, Central Rand, East Rand, and Evander Goldfields Gold ore and refined |  | | Report (issue) | | Introduction Mineral deposits in and near the study area East flank zone Pyritiferous veins Silver-lead-zinc replacement...deposit':?.. Elkhorn-Tizer Basin zone Elkhorn district -»_»_.,H"1 -? r7Q f i-L^ifciL P. d o-i-n DdO-Lll...Ridge prospect Breccia pipe deposits Skyline Mine Blackjack Mine Chicago and Last Hope Mines Group I - Precious-...occurrences Mining districts (lodes) Beaver Creek district C O O /-\ t£ +L fU -t-L Y-* ', * H _ »__ _...History and production Economic geology Elkhorn district 88c 88f 88f History and production Economic |  | | Report (issue) | | from references to the geographic term ''Mining District," especially in the pre-1920 literature. Widespread...stone hammers and called his claim the Stone Hammer mine. This find aroused so much interest that the San...circumstance the location was named the Stone Hammer mine. "The State Mining Bureau reported at about the...region between Death Valley and Goff's Mining District, nearer the former, and that good samples were...the museum of the Bureau. * * * "The turquoise district, as described by Mr. Eisen and others of the party |  | | Report (volume) | | 560-2652 E-mail: bookstore@aapg.org India Affiliated East-West Press PVT Ltd G-l/16 Ansari Road, Daryaganj...P. H. G. M. Tectono-magmatic evolution of the Zimbabwe Craton 135 151 183 Constraints on the Archaean...Stable isotopes in the Archaean Belingwe belt, Zimbabwe: evidence for a diverse microbial mat ecology...propose a tectono-magmatic evolution model for the Zimbabwe craton. The third section contains papers concerned...broad, and looks back to a meeting in Harare, Zimbabwe 50 years ago when Fermor and A. M. Macgregor explored |  | | Report (issue) | | stone hammers, and called his claim the Stone Hammer mine. This find aroused so much interest that the San...circumstance the location was named the Stone Hammer mine. "The State Slining Bureau reported at about the...region between Death Valley and Goff's Mining District, nearer the former, and that good samples were...the museum of the Bureau. * * * "The turquoise district, as described by Mr. Eisen and others of the party...Klamath River, two localities; 1 mile east of Tuolumne 4 miles east of Lindsay, Tulare County near mouth |  | | Report (volume) | | (I) Six new Paleozoic and Mesozoic formations in east-central Alaska, by Earl E. Brabb. (J) Four new members...Photograph of conglomerate of the Root Glacier Formation east of McCarthy Creek.___-__________..-_-______._-....Basalt of Baker (1912) adopted. (Dibblee, 1967a.) Arcturus Formation Ashlock Formation_..............._.......----........---. Early Devonian.._......... east-central New York............ Age changed from Early...name adopted. (Ekren and Frischknecht, 1967.) Meeke Mine Formation__..-.--_............ late Pliocene and |
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