 | | Journal (article/letter/editorial) | | 717–738 The Bisha Volcanic-Associated Massive Sulfide Deposit, Western Nakfa Terrane, Eritrea C. TUCKER...Alberta, Canada T2G 0V2 Abstract The Neoproterozoic Bisha volcanic-associated massive sulfide deposit (VMS)...in a newly discovered VMS district in western Eritrea. The host stratigraphic section comprises a large...possibly coeval and cogenetic intrusion known as the Bisha Gabbroic Complex, ~3 km downsection, a series of...Two other VMS deposits are present along strike: Bisha Northwest, 1.5 km to the north-northwest, and Harena |  | | Book | | Tunisia, Mali, Mauritania, Egypt, Sudan, and Eritrea. Originally our goal was to include papers on deposits...the setting and origin of major deposits in the region, together with information on tonnages and grades...Northeast Africa, with a focus on deposits in Eritrea, Sudan, and Egypt. The second paper is by M. Bouabdellah...comparisons and contrasts with MVT deposits in the region. The last part is focused on sediment-hosted iron...Tunisia, and Comparisons with MVT Deposits in the Region . . . . . . . . . . 497 Sophie Decrée, Christian |  | Niu, Lei, Hong, Tao, Xu, Xing-Wang, Li, Hang, Ke, Qiang, Wang, Xue-Hai, Ma, Yin-Ce (2020) A revised stratigraphic and tectonic framework for the Ashele volcanogenic massive sulfide deposit in the southern Chinese Altay: Evidence from stratigraphic relationships and zircon geochronology. Ore Geology Reviews, 127. 103814pp. doi:10.1016/j.oregeorev.2020.103814 | Journal (article/letter/editorial) | | stratigraphic sequence in the Ashele district, 4) deter mine the shape of the main orebody, and 5) provide useful...chalcopyritebearing pyrite, medium-coarse grained gypsum-bearing chalcopy rite-bearing pyrite, medium-fine...of the Geological Department of the Ashele Cu-Zn Mine and No. 4 Geological Party of the Xinjiang Bureau...2007. The Bisha volcanic-associated massive sulfide deposit, western Nakfa Terrane. Eritrea. Econ. Geol...Evolution of the Northern Xinjiang and Its Adjacent Region. Geological Publishing House, Beijing, pp. 1–180 |  | | Book | | original volcanic chain, which ran partly where Bisha and Taif now stand, had been unroofed and worn down...parts remaining as dry land were the northwest, the region around Tabuk and perhaps some ground in the southwest...water the rock forms will be halite, anhydrite, gypsum or common salt. Exposed to weathering, evaporites...marine sedimentary rock. T 28 from the polar region and into warmer latitudes. The glaciers retreated...typical of the sedimentary strata in Central Pond Region. *7 4 yA * 7 ee poet*t! 262%" s* e** i a rr |  | | Report (issue) | | St. Andre, maps, bibliog. TS, RT, S, D, Cl, WR. Eritrea, Physical features and mineral resources, 1942...L, S, CM, WR. Rome region, Terrain intelligence, 1943. TS. Po Valley region, Terrain intelligence...MR. TS, V, D, WR, Spp, SES 32. Aralo-Caspian Region, Terrain intelligence, 1942, 23 p., maps, bibliog...R, SW, V, R, AF, CM, S, RT, Cl. SES 75. Naples Region, Terrain intelligence, 1943, 55 p., ill us., maps...MR. SES 137a. Southwestern Formosa, Tinan-Shinei Region, Terrain intelligence, 1944, 128 p., illus., maps |  | | Report (issue) | | Gallium Garnet Gemstones Germanium Gold Graphite Gypsum Hafnium Helium Indium Iodine Iron and Steel Iron.............................................. 72 Gypsum .................................................(beryllium; cadmium; cement; diamond, industrial stones; gypsum; iron and steel; iron and steel slag; lime; magnesium...mineral commodities. The estimated value of U.S. metal mine production in 2017 was $26.3 billion (table 1),...Principal contributors to the total value of metal mine production in 2017 were gold (38%), copper (30%) |  | | Book (edition) | | sculptures. The name 'alabaster' is often applied to gypsum (CaSO4.2H2O) and used for the same purpose. FIGURE...Fluorite/Fluorspar is a fluoride (CaF2) FIGURE 1.17 Gypsum is a soft sulfate mineral (CaSO4) mineral with...visit to zincelead polymetallic ore deposit, Megan Mine, Germany. Source: Ref. 24. 10 1. ROCKS AND MINERALS...Fig. 1.15), garnet (Ca3Al2(SiO4)3; Fig. 1.16), gypsum (CaSO4$2H2O; FIGURE 1.19 Bauxite is a primary...schist host rock at Kolihan Section, Khetri Copper Mine, India. 1.3. MINERALS 11 FIGURE 1.23 Chromite |  | | Book (edition) | | 13 Galena and cerussite 11.3.14 Graphite 11.3.15 Gypsum 11.3.16 Hematite 11.3.17 Mica 11.3.18 Pyrite 11...the mineral industry and human consequences 11.6.1 Mine waste catastrophe 11.6.2 Mineral process plant failure...(x 5 0 to 0.2)) Sulfate Barites (BaSO4 2H2O), gypsum (CaSO4), anglesite (PbSO4) Sulfosalts Bournonite...sphalerite (ZnS), galena (PbS), baryte (BaSO4 2H2O), gypsum (CaSO4), and apatite (Ca5(PO4)3 (F,Cl,OH)), etc...tailing in the future. The tailing of Kolar gold mine, India, historically stored at tailing dam, is being |  | | Book | | pl). Tear-drop dunes in the southern Al Qa‘amiyat region of the south–eastern Rub‘ al Khali. Note slip face...Plateau. (Photo credit D. C. Padget). Fig.15.19. Gypsum encrusted surface of a small sabkhah south–west...courtesy of nasa.gov/mrsid/mrsid.pl). A mat of gypsum crystals formed at the ground water table in sabkhah...Saudi Arabia. They consist mainly of aggregates of gypsum crystals incorporating aeolian sand grains. (Photo...enterolithic folding seen in the lower layers of the white gypsum beds in a dug pit in Sabkhat ar Riyas. Dark grey |  | | Journal (issue) | | association between karst scholars of the Dinaric region and France continues; Jean Nicod, doyen of the...compares its geographical source in the Dinaric region to its potential extent (the global outcrop of...that this was strong evidence that in any given region most karst flow must be converging into just a...B, that is above the general base level of the region (e.g., above sea level if close to the coast) The...the development of karst landforms in the Guilin region, Guangxi, China Embeyons ‘and fractures being |  | | Book | | the arts is the proper focus of interest at every mine; that the operations converging on this point are...conditions The problem of ore treatment confronts every mine manager. Mining should be looked upon as a manufacturing...crushers that first take the ore as it comes from the mine (some of them can take 6-ft. cubes) are called COARSE...flow-sheet at a large mine has more steps and is more complicated than that at a small mine. Grade of ore. High-grade...The fact that the mill owner is also usually the mine owner is not sufficient insurance as to the adequacy |  | | Book (volume) | | 1872 he brought out his first social novel, the Bisha-Brikkha or Poison Tree, which was followed by others...Route.” Cheboygan is situated in a fertile farming region, for CHECHENZES—CHEERING which it is a trade...somewhat neglected; we find Georg Agricola considering gypsum (calcium sulphate) as a compound of lime, while...spectroscopically. By such a study in the ultra-violet region of a fraction prepared from crude yttria he detected...time of Berzelius many experimenters have entered mine the purity of a product before it can be valued |
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