 | | Book | | GEMSTONES of East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published by Struik...resources 12 Burundi 13 Kenya 14 Rwanda 16 Tanzania 17 Uganda 20 Gemological properties 21 A to...through Tanzania, Kenya, Ethiopia and into the Sudan - has blessed East Africa, Kenya and Tanzania, with...starting in what was then Tanganyika ( now mainland Tanzania) and then progressing to Kenya - I am proud to...countries are among the finest in the world. The region and its gems are particularly dear to my family |  | | Book | | (field of view 8 cm). Figure 1.3 An opencast iron ore mine (Postmasburg, South Africa). 7 microscopes, or...which are essentially spherical (figure 2.3A), and p, d and f orbitals (figure 2.3B, C), which are shaped...three equivalent orbitals occupied by electrons, the d as a set of five and the f as a set of seven orbitals...orbitals (A) (B) y x x y z z z The five d orbitals (D) (C) y x x y z Figure 2.3 The shapes and...and arrangement of the (A) s, (B) p and (C) d orbitals. The seven f orbitals are extremely complex and | | | Book | | about identifying a Figure 1.3 An opencast iron ore mine (Postmasburg, South Africa). microscopes, or chemically...three equivalent orbitals occupied by electrons, the d as a set of five and the fas a set of seven orbitals...nucleus but rather than follow predictable orbits d and f orbitals (figure 2.3B, C), which Figure 2.2...five d orbitals (Ā©) (D) Figure 2.3 The shapes and arrangement of the (A) s, (B) p and (C) d orbitals...Orbitals interpenetrate each other, as illustrated in (D) by the s and p orbitals. ways and the spatial distribution |  | | Journal (article/letter/editorial) | | Geosciences, Beijing 100083, China AC CE PT E D MA NU SC RI PT *Corresponding author E-mail:...subduction under the paleo-suture in the South China Block; (4) Mesozoic demantling along the Paleo- and Neoproterozoic...superimposed orogeny has exerted significant control on the D metallogeny in China. The giant porphyry, skarn,...Superimposed orogeny; Continental collision; AC CE PT E D MA NU SC RI PT Adakite; Supercontinents. 3...evolution of the North China Craton and South China Block in the PT Archean to Paleoproterozoic (e.g., Santosh |  | Hovakimyan, Samvel, Moritz, Robert, Tayan, Rodrik, Melkonyan, Rafael, Harutyunyan, Marianna (2019) Cenozoic Strike-Slip Tectonics and Structural Controls of Porphyry Cu-Mo and Epithermal Deposits During Geodynamic Evolution of the Southernmost Lesser Caucasus, Tethyan Metallogenic Belt. Economic Geology, 114 (7) 1301-1337 doi:10.5382/econgeo.4662 | Journal (article/letter/editorial) | | Armenia Abstract The Zangezur-Ordubad mining district of the southernmost Lesser Caucasus is located...Introduction The Zangezur-Ordubad region is a major mining district along the Tethyan metallogenic belt...Caucasus (Fig. 1; Moritz et al., 2016a). This mining district records an about 30 m.y. long incremental pluton...zone between the Gondwana-derived South Armenian block and the Eurasian margin (Fig. 1; Philip et al.,...formation stages in the ZangezurOrdubad mining district, (2) their relationship with regional dextral |  | Chen, Yan-Jing, Wang, Pin, Li, Nuo, Yang, Yong-Fei, Pirajno, Franco (2017) The collision-type porphyry Mo deposits in Dabie Shan, China. Ore Geology Reviews, 81. 405-430 doi:10.1016/j.oregeorev.2016.03.025 | Journal (article/letter/editorial) | | China Geological Survey, Chengdu 610081, China d Centre for Exploration Targeting, University of Western...Stirling Highway, Crawley TE CE P WA6009, Australia D c AC *Corresponding author: yjchen@pku.edu.cn or...with the MA Precambrian rocks of the North China block, except for the Tianmugou porphyry system which...geochemical characteristics with the porphyry Mo deposits D in eastern Qinling Orogen. We also develop a scissor-style...In the model, the basement of the North China Block southwardly underthrusted beneath the Dabie AC |  | Hu, Xinlu, Yao, Shuzhen, Zeng, Guoping, Liu, Wenhao, Zhang, Zhenjie (2019) Multistage magmatism resulting in large-scale mineralizaion: A case from the Huojihe porphyry Mo deposit in NE China. Lithos, 326. 397-414 doi:10.1016/j.lithos.2018.12.036 | Journal (article/letter/editorial) | | * D School of Earth Sciences and Resources, China University of Geosciences, Beijing PT E d CE...Geosciences, Wuhan. Lumo Road No.388, Hongshan District, Wuhan 430074, China. ACCEPTED MANUSCRIPT Abstract...Northeast China. The major magmatic rocks in the ore district include granodiorite, porphyritic granodiorite...Ma, respectively. The ReāOs model ages of the molybdenite range from 182.4 to 179.2 NU Ma. Combined with...the Huojihe Mo deposit experienced two epoches of D mineralization related to the granodiorite (ca. 185 |  | | Journal (article/letter/editorial) | | the stability ļ¬eld of coexisting scheelite and molybdenite at 577 8C and 1000 bars ļ¬uid pressure (modiļ¬ed...calculations indicate that endmember scheelite and molybdenite exhibit an overlapping ļ¬eld of stability in terms...metals which absorb energy and re-emit it via dād block transitions (e.g., Grasser et al. 1988, Marfunin...scheelite show a number of peaks associated with F-block electrons, these being attributed to REE. In general...Barewood (D) Ortiz Mine (Cunningham Hill) (D) CastanĢeda de Llamuco Mine (D) Silverton (Sunnyside Mine?) (D) |  | Anderson, Eric D., Monecke, Thomas, Hitzman, Murray W., Zhou, Wendy, Bedrosian, Paul A. (2017) Mineral Potential Mapping in an Accreted Island-Arc Setting Using Aeromagnetic Data: An Example from Southwest Alaska. Economic Geology, 112 (2) 375-396 doi:10.2113/econgeo.112.2.375 | Journal (article/letter/editorial) | | Aeromagnetic Data: An Example from Southwest Alaska Eric D. Anderson,1,2,ā Thomas Monecke,2 Murray W. Hitzman...magnetic data were utilized to map lithologies in the district (Anderson et al., 2013; Shah et al., 2013). In...Al Kemuk Johnson River k Bor der Ra n Bruce Hills Windy Craggy k In 60Ā°N Pebble n ia YukoColumb...ua LC013 Bonanza q a l Hills Te Tlikakila na at ch lt l u u M fa Shotgun Hills LC022 Chilikadrotna ...Al Muklung Hills IL047 au yf Iliamna Lake Ba as ka Ra -Al ng eut e ia Stuyahok Hills lt n Mtn |  | | Report (issue) | | INTENTIONALLY BLANK Figure 1 Vulture and Congress Mine field-trip stops. BACKGROUND MATERIAL Il Arizona...Reynolds . 1977. in press ; Hardin g. 1978; Eberly an d Stanley . 197 8 ; Keith . 1978 ; Otton . 197 8 ; C...Marshak . 1 97 9 ; Robison . 197 9 ; S uneson an d Lucchitta , 1979; Davis and others . in press ; S...red as follo ws : ( 1) Dome Rock Mountains , (2) Plomosa Mountains , ( 3) Ne w Wate r MounĀ t a ins ...Livin gston H ills , ( 5) Kofa Mountains , ( 6) Little Ho rn Mountains , ( 7) Ceme te ry Rid ge , ( 8) |  | Heitt, D. G., Dunbar, W. W., Thompson, T. B., Jackson, R. G. (2003) Geology and Geochemistry of the Deep Star Gold Deposit, Carlin Trend, Nevada. Economic Geology, 98 (6) 1107-1135 doi:10.2113/gsecongeo.98.6.1107 | Journal (article/letter/editorial) | | the Deep Star fault and above the deposit in a region where secondary carbonate veins (ankerite, kutnahorite...north of the Genesis-Bluestar mine and 1,525 m south of the Betze-Post mine at latitude 40Ā°57'38" N, longitude...exploration in the Genesis-Bluestar and Betze-Post mine areas focused on near-surface oxide gold mineralization...0361-0128/98/000/000-00 $6.00 1109 Production and Reserves Mine development began in early 1994 with twin parallel...carbonaceous carbonate rocks beneath the Roberts Mountains thrust (RMT) formed during the Antler orogeny |  | | Book | | . . . . 4.1.2 Polymetallic Veins in the Ore Mountains . . . . . . . . . . . 4.2 Orogenic Gold Veins... Research trips led him to Oldoinyo Lengai in Tanzania, through the High Atlas in Morocco, and to the...East African carbonatites led him to Uganda and Tanzania. He works at CRB Analyse Service GmbH in Hardegsen...is the minimum grade at which it is worthwhile to mine a certain deposit. Everything below it (low-grade...chalcopyrite (brass) from the Friedrich-Christian Mine in Wildschapbach, Black Forest (Germany) (photo |  | | Report (volume) | | Canada THE MINES HANDBOOK Meeting tbe Needs of Mine and Smelter Hundreds of plants on both American...(all types) Crushers Crushing Rolls NEW YORK Mine Pumps Oil Engines Sampling Machinery Screens Stamp...ENGINES, MINING AND SMELTING MACHINERY CTON JOHN D. RYAN, CHAIRMAN OF THE BOARD OF DIRECTORS OF THE...the iron mining companies of the Lake Superior district is given, and the many mining corporations of...all the metals, and a corresponding expansion of mine work. The MINES HANDBOOK will hereafter be published |  | | Journal (article/letter/editorial) | | PT Richard J. Goldfarba,b,c* and David I. Grovesc,d U.S. Geological Survey, Box 25046, MS 964, Denver...and Geographical Sciences, University of Western d MA Australia, Crawley, Western Australia, Australia...Close, Leeming, WA 6149, Australia TE Abstract D *corresponding author: goldfarb@usgs.gov AC CE P...and for Phanerozoic ores of +7 to +13 per mil; (2) ļ¤D and ļ¤34S values that are extremely variable; (3) ļ¤13C...the O, S, and C ratios. The extreme variations in ļ¤D mainly reflect measurements of hydrogen isotopes by |  | | Report (volume) | | contributors to this volume were James W. Clarke, Georgianna D. Conant, Howard R. Cramer, Bettie S. Hackman, Virginia...Monograph Series. Washington, D. C. Am. Geophys. Union Trans. Washington, D. C. Am. Jour. Botany Baltimore...Mineralogist - American Mineralogist. Washington, D. C. University of Notre Dame. Mineralogical Society...North America. Montreal, Quebec, Canada; Washington, D. C. Arctic Inst. North America Tech. Paper Paper....Asociacion Mexicana de Geof(sicos de Exploracion. Mexico, D. F., Mexico. Asoc. Mexicana Geologos Petroleros Bol |  | | Report (volume) | | California. THE MINES HANDBOOK, 1922 MACHINERY FOR MINE ā¢ MILL SMELTER Embodying recent developments...Compressor NEW YORK Crushing Rolls Air Compressors Mine Pumps Ball Mills Blast Furnaces Oil Engines Screens...of Mines. Located in the Lake Superior Mining district. Mines and Mills accessible for college work....considered to be working the public and not the mine. Many suspicious promotions are however not positively...Street New York COPPER "C * Q" Electrolytic "P. D. Co." Casting ALPHABETICAL Note ā Roman INDEX TO |  | Li, Qian, Zhao, Kui-Dong, Lai, Pan-Chen, Jiang, Shao-Yong, Chen, Wei (2018) Petrogenesis of Cretaceous volcanic-intrusive complex from the giant Yanbei tin deposit, South China: Implication for multiple magma sources, tin mineralization, and geodynamic setting. Lithos, 296. 163-180 doi:10.1016/j.lithos.2017.11.006 | Journal (article/letter/editorial) | | University MA NU of Geosciences, Wuhan 430074, China D *Corresponding author: zhaokd@cug.edu.cn AC CE...yielded a zircon U-Pb age of 143Ā±1 Ma, and the granite D porphyry has the emplacement age of 138Ā±1 Ma. Diabase...mineralization; Yanbei tin deposit; South AC CE PT E D MA NU SC RI PT China ACCEPTED MANUSCRIPT ...normal slab subduction (Jahn et al., 1990), oblique D subduction with changing subduction angles (Zhou...crust-mantle interaction (e.g., Herzberg et al., D 2007; Wang et al., 2007; He and Xu, 2012; Li et al |  | | Report (volume) | | contributors to this volume were James W. Clarke, Georgianna D. Conant, Howard R. Cramer, Bettie S. Hackman, Virginia...S. 04470 04358 Acker, Louis L.; Hatcher, Robert D., Jr. Relationships between structure and topography...deposit- Discussion [of paper by L. G. Soderman andY. D. Kim, 1970]: Canadian Geotech. Jour., v. 7, no. 2...illus., 1970. Adams, John A. S. See Baldwin, Otha D. 00482 Adams, John A. S. See Hartung, Jack B. 06393...Adams, SamuelS. Ore controls, Carlsbad potash district, southeast New Mexico, in Third symposium on salt |  | | Other Paper | | time Transfer of concession Botswana Namibia Tanzania Mauritania Subject to updating Within 4 weeks...Munali Lumwana Project name Feasibility Study Mine construction Stage Exploration Exploration West...6 years - Average of 122Kt Cu/year over 37-year mine life. Appendix II-5 (1) Mineral Development and...the Mufulira Syncline at the well-known Mufulira Mine - Drilling for confirmation of reserves and other...Stage Surrounding the Exploration Buwana Mkubwa mine 15km from Mufulira, Copperbelt Location - Until |  | | Report (issue) | | paralle l to host-rock bedding. Black Cloud mine, Leadville district. Sherman-type ore (bottom) in paleokarst...veined with ferroan dolomite. rv1oose mine, North Alma district. Photographs b)' \Villiarn Sacco, Peabody...Carbonate-hosted sulfide deposits of the central Colorado mine ral belt: Introduction, general discussion, and...Johansing Leadville district: Geology and the origin of ore deposits in the Leadville district, Colorado: Part...and the origin of ore deposits in the Leadville district, Colorado: Part II. Oxygen, hydroge n, carbon |  | | Book | | Features of Ireland-Glaciated and Unglaciated Mountains of Ireland-Glaciation of Lowlands of Ireland (mainly)Typical...Terrace-Storm Beaches: Sand Beaches-Blown Sand: Sand Hills- Beach Drifting: Spits: Bars-The Irish Coast (Its...Sheets and Isostasy- Geosynclines- Origin of Fold Mountains-Lateral Movements: Continental Drift- Land and...Caledonian Mountain Building. CHAPTER XIX- DEVONIAN (O1,D RED SANDSTONE) . . 217 A Great Unconformity- Mountain...time, nor observed how nature has sculptured the hills so marvellously that their outline has harmony with |  | | Report (issue) | | c al S o c ie ty of Ame r i c a , as s o c iat e d s o c i e ti e s m e eting on the c ampus c oncu r...r r ently . The Unive r s ity i s pl e a s e d to makļæ½ i t s fac ilitie s availabl e fo r the s e me...b e c om e acquaint e d with the wo rk b e ing done . The C oll e g e of Mine s i s out standing fo r...r imentation, and r e s ea r c h in g eology and mine ralogy and in mining and metallurg ic al engin e...with the Arizona B u r eau of Mine s and the United State s B u r eau of Mine s , both of which have offic |  | | Report (volume) | | contributors to this volume were James W. Clarke, Georgianna D. Conant, Howard R. Cramer, Bettie S. Hackman, Elizabeth...Geophys. Union Geophys. Mon. Monograph. Washington, D. C. Am. Jour. Botany Baltimore, Md. American Geophysical...Mineralogist - American Mineralogist. Washington, D. C. University of Notre Dame. Mineralogical Society...America. Montreal, Quebec, Canada, and Washington, D. C. Arctic and Alpine Research- Arctic and Alpine...Paper. Montreal, Quebec, Canada, and Washington, D. C. Arctic lnst. North America Tech. Paper- Arctic |  | | Report (volume) | | Washington, D. C. 20242. The principal contributors to this volume were James W. Clarke, Georgianna D. Conant...Mon. Monograph. Washington, D. C. Am. Geophys. Union Trans. Washington, D. C. Am. Jour. Botany Baltimore...Mineralogist - American Mineralogist. Washington, D. C. University of Notre Dame. Mineralogical Society...America. Montreal, Quebec, Canada, and Washington, D. C. Arctic Anthropology- Arctic Anthropology. University...Paper. Montreal, Quebec, Canada, and Washington, D. C. IX BIBLIOGRAPHY OF NORTH AMERICAN GEOLOGY, |  | | Report (volume) | | Burinn. Uy K. UMB.Si*. (Mnnoh.), AHHiniant Su}M*rmtoĀ«d<āĀ«t, .Survoy Ā«Ā£ India . . * . m 4U 412 4irĀ» 41Ā«-"430...from 15tli September 1921. Asf'iblanl SupprintfĀ»d...field work in Assam on 3(Jth April 1921. J)ei>ut<ād to investigate the gas seepages of Baroda on 8th October...and left for the field on 13th November 1921. Mr. D. N. Wadxa . Appointed Assistant Superinfendent,...officers joined the Department dining the ye-nr:ā Mr. D. N. Wadia, M.A., B.Sc., P.G.S., on Kith April 1921 |
|
