 | | Journal (issue) | | Geological Society of Zimbabwe Newsletter June, 2011 Geological Society of Zimbabwe 1960 -2010 G S Z...Newsletter June 2011 Tectonic evolution of the Zimbabwe Craton in the early Palaeoproterozoic. (a) Following...Following Söderlund et al. (2010), the Zimbabwe craton is positioned along the eastern margin of the Superior...basin initiated. (c) Assembly of the Kaapvaal and Zimbabwe cratons, and unknown terrane, Terra Incognita...Incognita at ca. 2.0 Ga led to tectonic escape of the Zimbabwe Craton and dextral shearing in the Limpopo Belt |  | | Journal (article/letter/editorial) | | sulmineralization of southern Africa, the threefold sub- fides (pyrite, pyrrhotite, chalcopyrite) occurringin divisionof...underlyingstratigraphicevolutionarycontrol. The Empress nickel-copperdeposit, which has Ideally, Arcbe...causes,the pyrrhotiteand pentlandite,chalcopyrite,pyrite, viomost destructiveof which appearsto have beenthe...The mineralization consistsmainly of chalcopyrite,pyrite, pyrrhotite, and pentlandire. Little is known of... R. ANHAEUSSER ! I O, 5,010, km , / ! / Empress*, ',.,. RHODESIA Selukwe ß / "NICKEL-COPPER |  | | Journal (issue) | | Geological Society of Zimbabwe Newsletter February, 2011 Geological Society of Zimbabwe G Z S Newsletter...SOCIETY OF ZIMBABWE, P.O. BOX CY 1719, CAUSEWAY, HARARE Geological Society of Zimbabwe Newsletter ...……………………….. Geology Department, University of Zimbabwe ……………………………………… Geological Survey Department ...Committee, on behalf of the Geological Society of Zimbabwe, would like to offer a sincere vote of thanks...debeer@cadline.co.zw 2 Geological Society of Zimbabwe Newsletter February, 2011 Editorial Here we |  | | Report (issue) | | 4.614(1) Z = 16 X-ray Powder Pattern: Empress Josephine mine, Colorado, USA. 2.70 (100), 2.23 (80),...19 Total 100.53 100.7 100.1 100.00 (1) Empress Josephine mine, Colorado, USA; average of two analyses...rickardite, altaite, galena (Empress Josephine mine, Colorado, USA); pyrite, rodalquilarite (Tombstone...Colorado, from the Empress Josephine mine, Kerber Creek district [TL], and the Klondike mine, Finley Gulch...Gulch, both in Saguache Co.; the May Day mine, La Plata Co.; and the Red Cloud, Rex, and other mines, Boulder |  | | Journal (article/letter/editorial) | | 210'C. The type locality at the Empress Josephine mine, Kerber Creek district, Saguache County, Colorado,...analysis of material from the May Day mine, La Plata district, Colorado, confirms the above composition...from the analysis locality and the Golden Fleece mine, Lake City, Hinsdale County, Colorado. INrnooucrrox...removed the material from the Empress Josephine mine, Kerber Creek district, Colorado, and who supplied...grained aggregate of sericite containing small pyrite euhedrons.Except for color, which in this specimenis |  | | Journal (article/letter/editorial) | | Ontario, Canada ABsrRAcr Empressite, from Empress Josephine mine, Colorado (type specimen), stuetzite, the...silver telluride, from the Empress Josephine Mine, Kerber Creek District, Colorado, was discoveredand...Short (1940). MerBnral Srrrorno EmpressJosephine Mine, KerberCreekDistrict, Colorado(USNM' 1. Empressite...crystalline pyrite are disseminated throughout the clayJike material. 2. Empressite, Red Cloud Mine, Boulder...original material collected by Dr. George from Empress Josephine mine, Colorado. Obtained from University of |  | | Report (issue) | | GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO BY W. S. BURBANK WITH A SECTION ON...Geography _ ______________ ___-__-__ Situation of the district _ _ _________________ Topographic features. ....Previous geologic and topographic work in the district. ____ ___________._-__-______--__. Field work...Gulch____.._____-----Sosthenes Gulch and Antoro mine __..-.-_ Vicinity of Round Mountain ____________..._________________. Southern part of district._____-______--_ Future exploration in the district.________---__._ Mines |  | | Journal (article/letter/editorial) | | Rhodesia. The occurrenceof gold at the Vubachikwe gold mine has been studied together with samplesof mineralized...Connemara, Empress, Marvel, Nelly 404, Pickstone, and Sherwood Starr mines. At the Vubachikwe mine the orebodies...Both he and Kleinot (1963), who later mappedthe mine in further detail,consideredthe gold to be of h...wasfaciI58 A detailed examination of the Vubachikwe mine has been made, and the stratigraphic situation...EXPLANATION The Vubachikwe Mine Geological setting The Vubachikwe mine is situated in the Gwanda greenstone |  | | Report (issue) | | BULLETIN 9 GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT SAGUACHE COUNTY COLORADO By HORACE B. PATTON.................................... 69 The Rawley mine......................................... 69 Location.................. . . . . . 69 Rock formations in mine and tunnel................... 74 Vein systems ..... . . . . . . . . . . . . . . . . . . . . . 78 Pyrite . . . . . . . . . . . . . . . . . . . . . . . ...tunnel.......... . . . . . . . . . 86 The Antoro mine....... . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | describedby G. Rose in 1830in samplesfrom the Zavodinskii Mine, Altai Mountains. The polymorph stable at surface...S 200 continuous band interference filter. Elba pyrite cut parallel to (111) servedas reflectivity standard;...standard; it was calibrated against the NPl-measured pyrite "b" as quoted by Bowie (1967,p. 125). The spectral...Investigation of the type material of empressite from the Empress JosephineMine proved to be of particular interest...original description of empressiteb.v Frc. 2. Empress Josephine Mine, colorado (USNM R 7243) Agr-Tea AgTe (light |  | | 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 |  | | Report (issue) | | lead-silver-zinc district ______________ _ Geochemical prospecting ___ ._ ____________ _ Future of the district ___________________...___________________ _ Zinc Hill district ___________________________ _ Lee district _______________________________...Hills-----------------------------------Santa Rosa mine ______________________ _ Deposits in the Talc City...acknowledgments _________ _ Deposits in the Darwin district ______________ _ Geology~------------------------------...City' Hills. Geologic map and sections of the Darwin mine area. Map of part of 400 level and section of the |  | | Journal (article/letter/editorial) | | RhodesiaCopperbelt................................... Mufulira Mine ................................................................................... Roan Antelope Mine ............................................. 909............................ 915 920 922 923 The Mine Series ...........................................mineral exploration for RhodesJanSelection Trust Mine Services Ltd., and from 1962 to 1963 he was SeniorGeologistfor...KATANGA SYSTEMS Kundelungu Series BASEMENT SYSTEMS Mine Series KATANGA SYSTEM Undifferentiated IGNEOUS |  | | Book | | tourmaline crystals from William Larson’s Stuart Mine in the Pala Mountains, California (USA). Next to...quartz from the hydrothermal deposits of the Muzo Mine, Colombia. Collection: Mineralogical Institute of...morganite and white quartz from the pegmatite of Queen Mine, San Diego County, California (USA). Collection:...this ornamental gem owes its name. It comes from a mine near Ylamaa, Finland. Museum a. d. Felsenkirche...Moldavite/obsidian Quartz, crystalline/spinel Beryl/pyrite Zircon/emerald Garnet/topaz/turquoise/peridot |  | Allibone, Andrew, Blakemore, Hamish, Gane, Jon, Moore, Jonathan, MacKenzie, Doug, Craw, Dave (2018) Contrasting Structural Styles of Orogenic Gold Deposits, Reefton Goldfield, New Zealand. Economic Geology, 113 (7) 1479-1497 doi:10.5382/econgeo.2018.4599 | Journal (article/letter/editorial) | | The kilometer-long Birthday reef in the Blackwater mine is located on a narrow, mineralized, brittle-ductile...overlain by Devonian sedimentary rocks in the Reefton district (Fig. 1) (Bradshaw, 1995). The Karamea batholith...intruded the Greenland Group in the wider Reefton district from ca. 124 to 100 Ma (Fig. 1; U-Pb zircon SHRIMP...core complexes occurred throughout the Reefton district and areas to the west from ca. 110 to 100 Ma (U-Pb...(LA-ICP-MS), Ritchie et al., 2015). Much of the Reefton district is now overlain by Cenozoic sedimentary rocks |  | | Journal (issue) | | cultured blister pearls from one major producer, Empress Abalone Ltd., using New Zealand’s Haliotis iris...the strongest recent impact on this industry. Empress Abalone Ltd. is producing large, attractive cultured...had a significant impact on face-up appearance. Empress Abalone Ltd. is also experimenting with producing...presented by abalone pearl culture. One company, Empress Abalone Ltd. of Christchurch, New Zealand, is successfully...marketed under the international trademark, Empress Pearl© (or Empress Abalone Pearl© in the U.S.). The company |  | | Journal (article/letter/editorial) | | vein of Altaite and the darn stuff was too poor to mine for lead. Then tellurium was found in other places...Gilpin County at the War Dance Mine where it had been put over the dump as pyrite. When it was found that this...to find a specimen you will surely earn it. This mine also had some fine specimens of Petzite, little...miner who gave it to me from a window edge of a mine at Leadville. He said it was a lead-zinc ore but...mentioned the galena-like Hessites found at the Geyser Mine. I had a chance to buy two or three small specimens |  | | Journal (article/letter/editorial) | | along the shearzoneare, Jane,Bluff, Fairview, Empress,and Victoria. The total productionof copperfrom...SalmonRiver, Premier Mine, Engineer Mine of Atlin, Bear River, Dolly Varden Mine o.f Alice Arm, Hazelton...Vertical Sectionof Fairview Mine. Theargillaceous quartzite intheJane mine usually carries the mineralization...accordingto J. A. Bancroft and as a sill at the Premier mine. 3 The Silica Rock.---The largestwedgeof all, the...well as from the fact that the other wedgesof the Empress and Victoria mines do not show silicificationto |  | | Journal (article/letter/editorial) | | nogenic Cu-ZnSulfideDeposits in the Britannia District, British Columbia J. G. PAYNE, 877 Lillooet Road...Britannia was completedby H. J. THF• Britannia district, 25 milesnorth of Vancouver, James(1929). His...Au. The deformedrocksare cut by dacitedikes Jane mine and the ubiquitous presence of anhydrite and severalmajor...hoods." 7OO CU-ZN SULFIDE DEPOSITS, BRITANNIA DISTRICT, B. C. 701 Subsequentto preparationof the present...advanced. R. J. Beatty (1974), in a project suggestedby mine were shearedtuffs and agglomerates and that, "movementalong |  | | Journal (article/letter/editorial) | | ickardite was first discovered in the Good Hope mine, Vulcan, Colorado, by Dr. Loui Weiss in 1902. The...Hope mine. H. B. Patton2 named rickardite as one of the minerals of the Empress Josephine mine, Bonanza...petzite, and empressite were also found in this mine. Patton gave no description of the occurrence, only...rickardite in small amounts in the san Sebastion mine, Salvador. According to Mr. Wuensch{ the rickardite...was in small and irregular grains associated with pyrite. Calaverite occurred in minor quantities. A number |  | | Report (issue) | | 38 c = 8.45 Z=7 X-ray Powder Pattern: May Day mine, Colorado, USA. 2.16 (100b), 2.55 (80b), 3.03 (70)...58.49 41.51 Total 99.7 99.1 100.00 (1) Red Cloud mine, Colorado, USA; by electron microprobe, corresponding...sphalerite, colusite, tetrahedrite–tennantite, pyrite. Distribution: A museum specimen, probably from...In the USA, in Colorado, at the May Day mine, La Plata district, La Plata Co.; from the Golden Fleece mines...Lake City, Hinsdale Co.; at the Empress Josephine mine, Bonanza district, Saguache Co.; from Buckeye Gulch |  | | Report (issue) | | c = 6.1066(3) X-ray Powder Pattern: Good Hope Mine, Colorado, USA. 2.07 (100), 3.36 (60), 2.55 (40)... (2) 40.0 60.9 Total 99.95 100.9 (1) Good Hope mine, Colorado, USA; corresponds to Cu2.76 Te2.00 . (2)...berthierite, pyrite, arsenopyrite, bornite. Distribution: In the USA, in Colorado, at the Good Hope mine, Vulcan...Gunnison Co. [TL]; also at the Empress Josephine mine, Bonanza district, Saguache Co., at Buckeye Gulch...Little Joe shaft, Tombstone, Cochise Co. In the Horne mine, Noranda, Quebec, Canada. From the San Miguel prospect |  | | Journal (article/letter/editorial) | | footwall of the irruptive) have made the Sudbury District the greatest single producer of nickel since the...minerals, the balance being made up by cubanite, pyrite, magnetite and ilmenite. In the average Sudbury...(mainly pentlandite, pyrrhotite, ehaleopyrite and pyrite) of the platiniferous Merensky horizon within the...area, Western Australia (McCALL, 1972), and the Empress Ni-Cu-deposit, Rhodesia (SrIAneE, 1964). 2.2. T...derived from an extraneous source, principally from pyrite-rich host-rocks of the ultrabasic intrusion. When |  | | Report (issue) | | of vug. Reflected light, in air, 183 X. Smuggler mine; c. Galena (gn) replaced by hessite (hs) which was...light, in air, 218 X. Nancy mine; d. Tetrahedrite (td) interstitial to pyrite (py) has been replaced by...quartz (qz). Reflected light, in air, 153 X. Croesus mine; f. Single crystal of tellurium (Te) was largely...visible. Reflected light, in air, 157 X. Emancipation mine; g. Subhedral, bladed tellurium in penecontemporaneous...quartz. Reflected light, in air, 28 X. John Jay mine; h. Sylvanite (sv) and native tellurium (Te) in |  | | Journal (issue) | | ISSUE 21 RECORD-BREAKING RUBY DISCOVERY THE DIDY MINE, MADAGASCAR An Outlook on the Resource-rich Hunan...Record-breaking Discovery of Ruby and Sapphire at the Didy Mine in Madagascar: Investigating the Source Gemology...trademark, although he says he has the only license to mine and export Turkish Diaspore. Milenyum Mining Limited...71 for its ethically mined stones from the Kagem mine in Zambia. That compared with an average of US$38...high-quality ethically sourced emeralds from our Kagem mine in Zambia. “During the coming year, we will also |
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