 | | Report (issue) | | • • • • 81 • • • • • • • • • 86 Uganda • • • • Union of South Africa Canada • • • ...Nkana, Northern Rhodesia . . . . . . . The Kilembe area, Uganda . . . . . Major cobalt deposits of Canada...Selection Trust Ltd.; Rhokana Corporation Ltd.; Rhoanglo Mine Services Ltd.; Anglo-American Corporation of South...in cobaltiferous pyrite concentrate produced in Uganda and stockpiled there for economic reasons. Amongst...which cobalt is the principal commodity extracted. Western Gern1any extracts a large quantity of this m.etal |  | | Journal (article/letter/editorial) | | give well-resolved doublets in the back reflection region, except in the case of the secondary violarites...ore samples from M o u n t Colin and M o u n t Calcite in N o r t h West Queensland as well as from HCmse...3o27 Mount Calcite I* 25.I 16.5 16.8 41.6 IOO.O 9.405 1.3 0.9 0.9 3o96 Madziwa Mine I* 31.O...6 1 0 0 . 5 9.46I I.I 1.7 0.3 3295 Madziwa Mine I** 32.8 19.8 5.3 42.4 1 0 0 . 3 9.438 1...described from the M a d z i w a Mine (formerly the Dry Nickel Mine), Bindura, Rhodesia (Zimbabwe). At |  | | Journal (article/letter/editorial) | | Rdde, near Moss, mossite, 553Gran Hadeland, Oslo region, zoned pyroxenes and amphiboles from camptonites...Sweden (Sverige) Gladhammar mine, nickel-rich carrollite, 737 Harstig mine, Pajsberg, sarkinite, 681 Norr6...Norr6, arrojadite (hiihnerkobelite), 23o Sjo mine, Grythytte Parish, Orebro, xantharsenite, polyarsenite...Blue Anchor point to StolJbrd rocks, Somerset, calcite, baryte, celestine, sphalerite, pyrite, chalcopyrite...Court farm, Ramsgate, Kent, chalk, i6o Tynebottom mine, Garrigill, Cumbria, arsenical marcasite, gersdorffite |  | | Journal (article/letter/editorial) | | particular, two analyses of a sample from the Ore Knob mine, North Carolina (no. 11119/29), yield 6liB values...32 HP-388 -8.14__+0.36 JS-87NB-9A -8.22-+0.36 Kilembe-1 -7.74_0.34 JS-79N-I --12.11__0.24 (-- 12.79 -+0...Elizabeth mine, Vermont Devonian(?) Amphibolite 1, 2 Cu, Zn, Ag Cu, Zn Elizabeth mine, Vermont Pike...Pike Hill mine, Vermont Devonian(?) Devonian(?) Amphibolite Amphibolite 1, 2 2, 3 Cu, Zn Cu, Zn ... Ely mine, Vermont Ore Knob mine, North Carolina Devonian(?) Late Proterozoic Amphibolite Amphibolite |  | | Journal (article/letter/editorial) | | units are found at various levels in the commonly calcite cemented formations. The Kilombero Karoo succession...mineralogical and geochemical investigations support a western, more granitoid provenance of the upper fluviolacustrine...(Figure 2), forming a northeast-striking hilly region, which has the typical geomorphological expression...a typical E-facing half-graben asymmetry. Its western limit corresponds to a steep and almost continuous... 0.0 - 2.3 0.0 0.0 - 0.1 0.2 0.0 - 1.5 Calcite 0.2 0.0 - 1.0 0.6 0.0 - 0.0 0.2 0.0 - 1 |  | | Journal (article/letter/editorial) | | . . . . . . . . . 1.4 Northern and western Europe . . . . . . . . . . . . . ... . . . . . . . . . 1.9 Middle East (Western Asia) . . . . . . . . . . . . . ...closely link geomorphological (land)forms in a region with the climate during a certain period of time...and vanadocrete (vanadate). Panczner 1987 Tajo Mine, Hidalgo del Parral, Chihuahua, Mexico Panczner...zone ( Quaternary < 2 Ma) Muwanga 1997 Kilembe/ Kasese Uganda Dill et al. 1991 Nuba Mts. Sudan Flicoteaux |  | | Journal (article/letter/editorial) | | eastern branch, -p and a younger, less exposed western branch that is characterised deep rift lakes, dense...Rift Basin is one of the few re segments of the western branch receiving extensive geological attention...products of the earliest volcanic events in the western branch, and they are coeval with EARS development...Miocene tectonomagmatic development elsewhere in the western branch, such as ~21 Ma nephelinites of Idwige Island...the Usangu Basin and Tukuyu Journal Pre-proof region of the Rungwe Volcanic Province (RVP) (Fig. 1b) |  | | Journal (article/letter/editorial) | | albite, zeolites, chlorite, recrystallization of calcite and some quartz precipitation have been reported...subsidence results in enhanced recrystallization of calcite, with a trend towards larger crystal size and more...Under such conditions new generations of hematite, calcite and clay minerals were formed, partly as a result...Polyphase rifting is common in both the eastern and western branches of the East African rift system, overprinting...Carboniferous to Triassic age rift basins of both western SOUTH AFRICAN JOURNAL OF GEOLOGY, 2002, VOLUME |  | | Catalog/List | | azurite/chalcocite matrix. 2x2x1-t", £4.5Op 4. AZURITE. Tynagh Mine, Co. Galway, Eire. Select cellular mass of bright...places. ~2-tX1t", £11.00 5. BARYTES. Mt. Wellington Mine, Twelvehead~, Cornwall, Specimen A: Lustrous well...that were f~und last century in the Ale & Cakes mine in Gwennap; barytes is a rare mineral in the Cornish...aggregates to 3 mm in size scattered over creamy Calcite crystals covering quartz matrix. 2-tx2", £4. 50p·...greyish masses and threads impregnating creamy Calcite. 3x2x1-t", ,£4.5Op. BERT~IERITE. 2 10. NATIVE |  | | Catalog/List | | coloured sharp crystals to -t" in size, encrusting Calcite matrix. *x2-txl~". £3.25. ANGLESITE. Leadhills...2~-x2xl". £3.50. 6. 7. 8. APATITE. Great Work Mine, 8reage, Cornwall. Small sharp transparent colourless...rix. 3b<4x2t". £33.00. ARSENOPVRITE. Hingston Down Mine, Gunnislake, Cornwall. Specimen A - well " .•. ·formed...pinkish Calcite crystals covering Barytes matrix. 2tx2xlt". £3.50. BARVTES. settlingstones Mine, Hexham...£2B.00. BARVTOCALCITE. Admiralty Flats, Nentsberry Mine, AlstJn Moor, Cumberland. Specimen A - Lustrous |  | | Report (issue) | | column 1, line 16, should appear as follows: "Western Mining Corporation, owner of Kwinana, has processed...mines and those of other companies having mines in Western Australia. Statistics relating to cobalt products...canhnot be traced to specific mines in Western Australia." Western Mining Corporation does not process concentrates...all feed for the refinery has come from mines in Western Australia. The first entry in table 15, on page...resources and mine production by geologic deposit type. . . 5. Distribution of cobalt resources and mine and metal |  | | Journal (article/letter/editorial) | | with special ~f%~~ the Uganda Probtorate P. G. JEXWERY C:eologioal Survey of Uganda and Department of Chemistry...tungsten in 273 samples of rocks and minerals from the Uganda Protectorate. The sampling is thus restricted to...tungsten, with special reference to the rocks of the Uganda Protectorate determinations of tungsten in carbonate...tungsten, with special reference to the rocks of the Uganda Protectorate (1958) has however shown that in...281 P.G.JEFFERY Table 2 Region g.m. No. of samples Northern Uganda (Karamojrt, Teso, Lango, Acholi |  | | Catalog/List | | matrix.~xltxlt". £2.50. 6. ARTHURITE. Hingston Down Mine, Nr. Callington, Cornwall. Specimen A - Rich lime...display. 7~x4x2" .£22.00. 10. AZURITE. Ting Tar.g Mine, Gwannap, Cornwall. Rich, Bright blue small sparkling... 11. 12. 13. 14. 15. 16. 17. 16. Hilto Mine Scordale was moreland. Sp i en A - Select, creamy...transparent intergrown Calcite crys als on Limonitic IT'atrix. 3x~1". £3.25. CALCITE. Tsumeb, otavi, S.U...19. 20. 21. 22. 23. 24. 25. 26. CALCITE. Levant Mine, pendeen, Corrwall. Choice, Qustrous creamy |  | | Journal (article/letter/editorial) | | United Kingdom Abstract Au mineralization in the western Lupa goldfield, southwestern Tanzania was associated...the two dominant structural trends within the western part of the Lupa goldfield, southwestern Tanzania...a comprehensive structural description of the western Lupa goldfield. We combine observations of structures...Paleoproterozoic Ubendian belt circumscribes the western edge of the Tanzanian craton and is divided into...lateral accretion of Ubendian terranes along the western margin of the Tanzanian craton (Daly, 1988; Lenoir |  | | Journal (article/letter/editorial) | | that of the carbonate rocks associated with the Western Rift volcanism ( -5.8 to -7*90/,). In contrast...carbonatite carbonates. q Calcite; n dolomite; 13 ankerite; Ixiiron-bearing calcite. the carbon isotopic...sys~rn&tica~y enriched in C!ls compared to so&es (mainly calcite with accessory minerals) from the same complex...eastern belt along the Uganda-Kenya border, and a western one along the Uganda-Congo border associated...associated with the Western Rift system. Three carbonatites from the eastern, north-south trending belt were sampled: |  | Griffin, William L., Slack, John F., Ramsden, Anthony R., Win, Tin Tin, Ryan, Chris G. (1996) Trace elements in tourmalines from massive sulfides deposits and tourmalinites; geochemical controls and exploration applications. Economic Geology, 91 (4) 657-675 doi:10.2113/gsecongeo.91.4.657 | Journal (article/letter/editorial) | | recrystallized duringregional (and from the Ore Knob mine (North Carolina) and the Prieska in onecasecontact)...onecasecontact) metamorphism, whichtypically hasde- mine(SouthAfrica)mayalsobe premetamorphie, because velopedcoarse...minorchalcopyrite andquartz,andtracesphalerite, from Elizabeth mine,Vermont; CP-16,coarse crystals, 1-7 cmlong,withinmatrixof...dolomite, andminorpyrrhotite andchalcopyrite, fromEly mine, Vermont; JS-79N-3, prismatic crystals <1 cmlong...pyrrhotite andchalcopyrite, fromthe Bleikvassli mine, Norway; KC-2505,prismatic crystals, <0.5 cmlong |  | | Catalog/List | | Chloritised rock. 2xlixl". £3.25. ANGLESITE. Redgill Mine, ~aldbeck, Cumberland. Translucent ~( transparent...associated Hith platy hexagonal crystals of translucent Calcite to t" in size. 3tx2tx2"'. £6.50. ARGENTITE. Freiburg...Carbonotite matrix. lxt". £1.65. BARYT~S. Force Crag MinE, NI'. Keswi~k, ~umberland. Lustrous, crEamy white...75; Specimen B - 2x2". £1.25. B' YTES. ilverband Mine, Dun fEll, WEstmoreland. SpE imEn A An intergrown...crystal. 2txl:t". £2.25. BARYTO~ALCITE. Blagill MinE, NI'. Alston, CumbErland. Choi~e, transparent, sharp |  | | Journal (article/letter/editorial) | | chocolate-brown crystalline Please Send Them In. calcite from the West End quarry, Inyo Co., Calif., and...of black, crystallized ferberite from the Conger Mine, near Nederland, Boulder Co., Colo. It is good to...Clark Co., Ind., colorless dogtooth crystals of calcite occur in vugs in a dark gray fossiliferous limestone...Hampden Co., Mass. The best specimens occur at the Old Mine. Michigan—A nice dark grayish cephalopod from the...RRl, Granby, Mo., sent in the following item: "Calcite crystals of various size and different colors are |  | | Catalog/List | | masses and microcrystals thickly intergrown on Calcite matrix with minor Pyrite, Sphalerite and Native...2xlt". £4-. 7. ANDRADITE GARNET. Belstone Consols Mine, Nr. Okehampton, Devon. Sharp, lustrous, well formed...of arsenical compounds in the shale during a coal mine fire. Distinct crystals of Native, rsenic in nature... £4. 21. ~UGITE. 22. BOURNONITE. Herodsfoot Mine, Lanreath, Cornwall. Bright, slightly tarnished...matrix. 2-}x2". £5. 23. BOURNONITE. Herodsfoot Mine, Lanreath, Cornwall. Small, bright grey, bladed |  | | Book | | East Africa Burundi, Kenya, Rwanda, Tanzania and Uganda Bruce Cairncross Published by Struik Nature...cover: (top) Grossularvariety hessonite on blue calcite, 2.5 cm - Philip Hitge specimen, Bruce Cairncross...12 Burundi 13 Kenya 14 Rwanda 16 Tanzania 17 Uganda 20 Gemological properties 21 A to Z of minerals...countries are among the finest in the world. The region and its gems are particularly dear to my family...most renowned gemstones from East Africa, this region is also host to some of the world's finest examples |  | | Journal (issue) | | REPORTS FROM THE GEOLOGICAL SURVEYS Kenya • • Uganda • • • Tanganyika • Nor them Rhodesia Cyprus...189 189 COLONIAL GEOLOGICAL ABSTRACTS Part 2.-Uganda . • • • • • • • 191 BOOK REVIEWS Africa...endeavours to appraise the total water resources of a region and to dev-elop the maximum supplies for all purposes...knowledge of the available water resources of a region is a pre-requisite to wise planning and successful...example, in the arid and semi-arid regions of the western United States, that part of precipitation which |  | | Journal (article/letter/editorial) | | 18 1088 Fig. 2 a Ikulu metapelite at Chemchem mine showing mafic bands (Bt-Sil) and felsic bands (Qz-Fsp)...adjacent to the Au–Cu-bearing veins at Chemchem mine. c Epidote–K-feldspar–sericite alteration of Ikulu...adjacent to the Au–Cu–Pb-bearing veins at Chemchem mine. d Chlorite–epidote–pyrite alteration of amphibolite...Fig. 3 a A photo of ores from Singililwa Au–Cu mine that consist of barite, K-feldspar, siderite and...4 Photomicrograph of various rock types from the Chemchem mine in plane-polarized light (a, b). Photomicrograph |  | | Journal (issue) | | 284 286 • • • • • • • • 289 292 Kenya. Uganda Northern Rhodesia Nyasaland • • • • • •...The Ruwenzori Mountains lie in western Uganda on the margin of the western branch of the Rift Valley System...the old.er 1 Formerly Assistant Director of the Uganda Geological Survey, and Director of the Geological...much the same pattern of forces has acted in the region from the earliest (Ubendian) diastrophism and successive...bands of the Ruwenzori Group at both eastern and western margins of the massif indicates up to 5 miles of |  | | Report (issue) | | not coincide with the Google-Earth images of the mine workings. The authors wish to thank William F. Cannon... Zimbabwe Aitik, Sweden, Dong Chuan China Kilembe, Uganda Udokan, Russia Copper Mmt 120 3 7 24 35...Alteration Green, white, or gray rocks rich in Fe-calcite and chlorite result from reaction of reducing fluids...zone are fairly stable minerals in the oxidizing mine environment, and pyrite occurs only as trace amounts...plans where acid mine drainage caused by oxidizing pyrite must be avoided. Calcite is present in 20 deposits |  | Spandler, Carl, Hammerli, Johannes, Sha, Peng, Hilbert-Wolf, Hannah, Hu, Yi, Roberts, Eric, Schmitz, Mark (2016) MKED1: A new titanite standard for in situ analysis of Sm–Nd isotopes and U–Pb geochronology. Chemical Geology, 425. 110-126 doi:10.1016/j.chemgeo.2016.01.002 | Journal (article/letter/editorial) | | School of Earth and Environment, University of Western Australia, 6009, WA, Australia Advanced Analytical...rift related volcanism and sedimentation in the western branch of the East African Rift System. © 2016...in length (Fig. 1B) associated with coarse pink calcite and minor diopside in a vein that cuts banded ...(1999)). MK = Mary Kathleen. The Mary Kathleen U-REE mine and Elaine Dorothy Cu–Au–REE prospect are marked...= formation. B. Diamond drill core of the pink calcite vein containing coarse euhedral MKED1 titanite |
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