 | | Journal (article/letter/editorial) | | Metamorphic ShearZonesof the RencoMine, Southern Zimbabwe ALEXANDER F. M. KISTERS, ā¢ JOCHEN KOLB, ANDF...Germany Abstract TheRencogoldminein southern Zimbabwe istheonlyknownmajorgolddeposit in thegranulite...havegivenrise hosted outside the realms of the Zimbabwe eraton. The Reneo to a debateabouttheconditions...thus,timingof thegold mineis located in southern Zimbabwe, approximately 75 km mineralization(B6hmkeand... Varndell, 1986; Tabcart, 1989; southeast of Masvingo in the northernmarginal zoneof the 1995;Blenkinsop |  | | Journal (article/letter/editorial) | | complex metamorphic assemblages occurs around the mine, compared to the assemblages developed regionally;...no evidence of higher metamorphic grades at the mine, nor that this might have been the prime control...lOOt Au), the Renco mine in the Rhodesian Craton of Zimbabwe (c. 30t Au), and the Consort mine in South Africa...(EGP) Eastern Gold Province, (K) Kalgoorlie gold mine. Five drill hole sections illustrate representative...plagioclase-garnet-sillimanite-quartz (equation 2). anorthite = grossular + sillimanite + quartz 3CaAI2Si2Og= Ca3AI2Si3Ol2+ |  | | Journal (article/letter/editorial) | | limits for alteration chlorite at the Harbour Lights mine, Yilgarn Block (Skwarnecki 1988). The ticked line...n i v a r i a n t reactions for the Victory gold mine are: 1. Ms+Dol=Bt+Chl+Cal; 2. B t + C h l + D o...giving biotite-ankerite - alteration at the Hunt mine, Kambalda as between 5.8 to 6.8; virtually identical...precipitation (e.g. pyrite-only deposits, Morning Star Mine: Henderson 1981) or contain mineralogical and/or...but relatively uniform, ~34S values (e.g. the Ross mine, Ontario: Cameron and Hattori 1987) probably precipitated |  | Zhao, Hesen, Wang, Qingfei, Groves, David I., Deng, Jun (2019) A rare Phanerozoic amphibolite-hosted gold deposit at Danba, Yangtze Craton, China: significance to fluid and metal sources for orogenic gold systems. Mineralium Deposita, 54 (1) 133-152 doi:10.1007/s00126-018-0845-x | Journal (article/letter/editorial) | | large granite intrusion is more than 10 km from the mine (ESM Fig. 1). The ore bodies had been mined to a...magnetotelluric sounding used during exploration at the mine (Fan et al. 2013). Metamorphic petrography Metamorphic...depth of 300 to 600 m in different sectors of the mine. Exploration data show that the Major Lode has a...with ore-related wall rock alteration, in the Danba mine were calculated using three methods: 1) amphibole-plagioclase...which is defined by the reactions (ESM Fig. 5b): Grossular Ć¾ Alpha Quartz Ć¾ 2 Sillimanite Ā¼ 3 Anorthite Ć°1Ć |  | Bineli Betsi, Thierry, Mokane, Lebogang, McFarlane, Chris, Phili, Kelebogile, Kelepile, Tebogo (2020) Multistage gold mineralization events in the Archean Tati greenstone Belt, northeast Botswana: Constraints from integrative white mica Ar/Ar, garnet U-Pb and sulfides Pb/Pb geochronology. Precambrian Research, 339. 105623 doi:10.1016/j.precamres.2020.105623 | Journal (article/letter/editorial) | | northeastern Botswana and 60 in the southwestern of the Zimbabwe Craton (Fig.1) is host to numerous types of ore...TGB, is located in the southwestern edge of the Zimbabwe Craton, 111 which extends in a southwestern...Botswana (Fig.1A, Zhai et al., 2006). The 112 Zimbabwe Craton is separated from the Kaapvaal Craton by...2002; Kampunzu et al., 2003). The part of the Zimbabwe Craton exposed in 116 Botswana is further subdivided...gneisses (Bagai et 145 al., 2002) and Phoenix Mine Gabbro (Van Geffen, 2004), the TTG from the TGB |  | Dziggel, Annika, Wulff, Katharina, Kolb, Jochen, Meyer, F. Michael, Lahaye, Y. (2009) Significance of oscillatory and bell-shaped growth zoning in hydrothermal garnet: Evidence from the Navachab gold deposit, Namibia. Chemical Geology, 262 (3) 262-276 doi:10.1016/j.chemgeo.2009.01.027 | Journal (article/letter/editorial) | | techniques. Garnet essentially forms spessartineāgrossularāalmandine solid solutions, and records a twostage...units. Kisters et al., 2004). The area around the mine is metamorphosed to amphibolite facies conditions...conditions of 550ā650 Ā°C and 2ā3 kbar (Puhan, 1983). The mine workings are situated at the near vertical NW limb...Navachab gold deposit form essentially spessartineāgrossularāalmandine solid solutions. The A. Dziggel et...(Prp), andradite (And), spessartine (Sps) and grossular (Grs) are given in mol%. Bright areas in X-ray |  | | Journal (article/letter/editorial) | | biotite + cummingtonite + anorthite to almandine + grossular + biotite. The pressure estimate confirms that...al., 1998). This study complements the published mine-scale study of the Nevoria deposit and previous...metamorphic, and hydrothermal events in the wider Nevoria mine area. The precise age of the Nevoria skarn agrees...petrography, and mineralogy of samples from the Nevoria mine. The estimated temperatures of metamorphism and...are quoted at the 95 percent confidence level. District Geology The Nevoria and three other mines (2ā30 |  | | Journal (article/letter/editorial) | | 723-750 Hydrothermal Alteration at the MineralHill Mine,Jardine, Montana: A Lower Amphibolite FaciesArchean...highermetamorphic grade Metasediments in the Mineral Hill mine area underwent formedat the P-T conditions suggested...alsoindiThe Archcanlodegolddepositin the MineralHill mine 1986).Regionalmedium-grade (Klein,1983). at Jardine...States(lā¢ig.1). The Beartooth Mountains arein theArchcan mine,rareFā¢ foldhinges, andtheorientation of Sā¢subparallel...graniticstocks, batho- anddeformation MINERALHILL MINE, MT: ARCHEANAu DEPOSIT 725 LEGEND Tertiaryvolcanics |  | | Journal (article/letter/editorial) | | Spessartine Mn3Al2Si3O12 Pyrope Mg3Al2Si3O12 Grossular Ca3Al2Si3O12 Andradite Ca3Fe2Si3O12 0.9458 0...in the Harare-Shamva-Bindura greenstone belt (Zimbabwe), H2OāCO2 and graphite-bearing H2OāCO2āCH4 inclusions... 2002. In mid-crustal mylonites from southern Zimbabwe, the immiscibility between brines and CO2āCH4āN2...the Harare-Shamva-Bindura greenstone belt, NE Zimbabwe. Eur. J. Mineral. 11, 1079ā1090. Japas, M.L.,...mid-crustal auriferous mylonites of the Renco mine, southern Zimbabwe. Mineral. Deposita 35, 109ā125. Kreulen |  | | Journal (article/letter/editorial) | | Sb-Au veins in the Brandholz-Goldkronach Mining District prevalently are oriented N-S, NNE-SSW, NE-SW and...Less widespread than the well-shaped tremolite, grossular, titanite and vesuvianite developed in both facies...reference types from the Lichtenberg-Issigau mining district, in which fluorite is associated with calcite...the calcsilicate 20 host rock accompanied by grossular (hessonite), diopside-hedenbergite, clinozoisite...between 430Ā°C and 570Ā°C, marked by the presence of grossular. This area is a LP/HT āhot spotā like the hydrothermal |  | | Journal (article/letter/editorial) | | al. 1995; Ridley et al. 2000). The Marymia gold mine is at the northern end of the Plutonic Well greenstone...discrete structures that are not penetrative even at mine scale. Early deformation events (D1āD2) correlate...following extensive nickel exploration. The ļ¬rst gold mine commissioned in the inlier was at the world-class...Interpreted geology of the area around the Marymia Gold Mine showing major lithological units, structures, and...aeromagnetic images. Northings and eastings represent mine grid co-ordinates. Also, inset (A) map of Plutonic |  | Bucci, L. A., McNaughton, N. J., Fletcher, I. R., Groves, D. I., Kositcin, N., Stein, H. J., Hagemann, S. G. (2004) Timing and Duration of High-Temperature Gold Mineralization and Spatially Associated Granitoid Magmatism at Chalice, Yilgarn Craton, Western Australia. Economic Geology, 99 (6) 1123-1144 doi:10.2113/gsecongeo.99.6.1123 | Journal (article/letter/editorial) | | pegmatite, which truncates all mine rock units, constrains the minimum age of mine-scale gold-bearing alteration...diamond drill core from 70 holes, covering the Chalice mine area. The lithostratigraphy and structural and hydrothermal...monzogranitic Pioneer dome (ca. 2665ā2655 Ma; Nelson, 1995). Mine Geology The local lithostratigraphy, structural...the following section with reference to the local mine environment at Chalice, not regional deformation...Greenstones and metamorphism The volcanic rocks of the mine sequence (Fig. 2a) are intercalated tholeiitic and |  | | Journal (article/letter/editorial) | | rocks consisting essentially of pyrope-almandine-grossular garnet and diopsidejadeite (omphacite) clinopyroxene...magnesian almandine, magnesian almandine, pyrope-grossular-almandine, and chrome pyrope; most of these are...are found in eclogites from the Roberts Victor Mine, illustrating the wide range of composition in garnets...temperature ranges; for example those from the Bultfontein Mine equilibrate over a very narrow temperature range...diamondiferous eclogites from the Roberts Victor Mine described by Reid et al. (1976). This more restrictive |  | | Conference Proceedings (Volume) | | Cover photograph: View of the Aitik open pit copper mine in the very north of Sweden. Mining operations started...evolution of the world class Siguiri orogenic gold district (Guinea, West Africa) ..........................processes in the orogenic gold deposit of the Pampalo mine, Hattu schist belt, eastern Finland . . ..........Alfons Berger & Ole Christiansen Svartliden gold mine: shear zone and BIF-hosted orogenic gold deposit...native silver association in the Cu-Ag deposit, Lubin mine, Fore-Sudetic Monocline (SW Poland) ........... |  | | Book | | . . . . . . . . . . . . . . . . . . 6.2.3 The Zimbabwe Craton . . . . . . . . . . . . . . . . . . . ...Iron Formations in the Greenstone Belts of the Zimbabwe Craton . . . . . . . . . . . . . . . . . . . ...Skorpion, Gergarub Pb-Zn District . . . . . . . . . . . . . . . . . 23.8.1 Rosh Pinah Mine . . . . . . . . ..... . . . . . . . . . . 23.9 The Oāokiep Copper District . . . . . . . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . 23.10.1 The Aggeneys District (Gamsberg, Black Mountain, Broken Hill) . . . |  | | Report (issue) | | Kolar Gold Fields (KGF) was the second deepest mine in the world which along with Hutti mines produced...Dona sector of Jonnagiri schist belt in Anatapur district, is being explored. Elsewhere, investigation for...ASSOCIATED MINERALISATION IN GULALDIH AREA SONBHADRA DISTRICT, , U T TAR PRADESH . --- lvI.A.KHAN. MANGALA...IN KAPPIL PROSPECT, NILAMBUR AREA , MALAPPURAM DISTRICT, KERALA 191 ---R.S. NAIR AND M. SURESH CHANDRAN...MINERALISATION IN T HE MANKADA PROSPECT, MALAPPURAM DISTRICT, KERALA 203 ---R.S. NAIR AND M. SURESH CHANDRAN |  | | Report (volume) | | studied the carbonatization reaction of grossular to calcite, anorthite, wollastonite/quartz in...consisted always of omphacitic clinopyroxene + grossular-rich garnet + coesite + rutile + kyanite. Major...the deposits (Yuzhna Petrovitsa) in the Madan district. Grouping the homogenization results as a function...Environment of ore deposition in the Creede mining district, San Juan Mountains, Colorado. 5. Epithermal mineralization...mid crust: fluidized breccias from the Cloncurry District, Australia. Geofluids 6:346-358 O'Sullivan MJ | | | Report (volume) | | (1982) studied the carbonatization reaction of grossular to calcite, anorthite, wollastonite/quartz in...consisted always of omphacitic clinopyroxene + grossular-rich garnet+ coesite + rutile Ā± k:yanite. Major...the deposits (Yuzhna Petrovitsa) in the Madan district. Grouping the homogenization results as a function...Environn1ent of ore deposition in the Creede mining district, San Juan Mountains, Colorado. 5. Epithermal mineralization...mid crust: fluidized breccias from the Cloncurry District, Australia. Geofluids 6:346-358 O'Sullivan MJ |
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