 | | Journal (article/letter/editorial) | | Genetic aspects of the Geita and Jubilee Reef Archean BIF-hosted gold deposits, Tanzania By G. BORG, Hannover...Hannover 51, FRG, D. R. LYATUU,Box 903, Dodoma, Tanzania, Africa, ]D. RAMMLMAIR,Bundesanstalt fiir Geowissenschaften...und -texturen sowie Goldanalysen (fire assay) yon Geita und Jubilee Reef belegen eine Wan&rung der Erzl&ungen...(new name), which is located in north-western Tanzania hosts a large number of gold deposits, prospects...zones. Ore textures and fire assay results from Geita and Jubilee Reef indicate the introduction of ore |  | van Ryt, Matthew R., Sanislav, Ioan V., Dirks, Paul H.G.M., Huizenga, Jan M., Mturi, Marwa I., Kolling, Sergio L. (2019) Biotite chemistry and the role of halogens in Archaean greenstone hosted gold deposits: A case study from Geita Gold Mine, Tanzania. Ore Geology Reviews, 111. 102982 doi:10.1016/j.oregeorev.2019.102982 | Journal (article/letter/editorial) | | hosted gold deposits: a case study from Geita Gold Mine, Tanzania Matthew R. van Ryt, Ioan V. Sanislav,...hosted gold deposits: a case study from Geita Gold Mine, Tanzania, Ore Geology Reviews (2019), doi: https://doi...hosted gold deposits: a case study from Geita Gold Mine, Tanzania Matthew R. van Ryta*, Ioan V. Sanislava... South Africa b c Geita Gold Mine, Geita, P.O. Box 532, Geita Region, Tanzania Corresponding author... Abstract Geita Hill is one of the largest Tanzanian gold deposits, located southwest of Lake Victoria and |  | Kwelwa, Shimba, Dirks, Paulus, Sanislav, Ioan, Blenkinsop, Thomas, Kolling, Sergio (2018) Archaean Gold Mineralization in an Extensional Setting: The Structural History of the Kukuluma and Matandani Deposits, Geita Greenstone Belt, Tanzania. Minerals, 8 (4) 171 doi:10.3390/min8040171 | Journal (article/letter/editorial) | | the Kukuluma and Matandani Deposits, Geita Greenstone Belt, Tanzania Shimba D. Kwelwa 1,2 , Paulus H. G...edu.au (P.H.G.M.D.) Geita Gold Mine, Geita, P.O. Box 532, Geita Region, Tanzania; skolling@anglogoldashanti...long, WNW trend in the E part of the Geita Greenstone Belt, NW Tanzania. The deposits are hosted in Archaean...world-class Nyankanga and Geita Hill deposits in the central part of the Geita Greenstone Belt. This similarity...belt is similar. All major gold deposits in the Geita Greenstone Belt lack close proximity to crustal-scale |  | van Ryt, Matthew R., Sanislav, Ioan V., Dirks, Paul H.G.M., Huizenga, Jan M., Mturi, Marwa I., Kolling, Sergio L. (2017) Alteration paragenesis and the timing of mineralised quartz veins at the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 91. 765-779 doi:10.1016/j.oregeorev.2017.08.023 | Journal (article/letter/editorial) | | veins at the worldclass Geita Hill gold deposit, Geita Greenstone Belt, Tanzania Matthew R. van Ryt, Ioan...veins at the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania, Ore Geology Reviews (2017)...veins at the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania Matthew R. van Ryta*...2520, South Africa c Geita Gold Mine, Geita, P.O. Box 532, Geita Region, Tanzania Keywords: Archean gold;...greenstone belt; quartz veins; Tanzania Abstract The world-class Geita Hill deposit is one of the largest |  | Sanislav, I. V., Brayshaw, M., Kolling, S. L., Dirks, P. H. G. M., Cook, Y. A., Blenkinsop, T. G. (2017) The structural history and mineralization controls of the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania. Mineralium Deposita, 52 (2) 257-279 doi:10.1007/s00126-016-0660-1 | Journal (article/letter/editorial) | | controls of the world-class Geita Hill gold deposit, Geita Greenstone Belt, Tanzania I. V. Sanislav 1 & M....Heidelberg 2016 Abstract The Geita Hill gold deposit is located in the Archean Geita Greenstone Belt and is...of the largest gold deposits in East Africa. The Geita Greenstone Belt experienced a complex deformation...well illustrated and preserved in and around the Geita Hill gold deposit. Deformation involved early stages... QLD, Australia 2 Geita Gold Mine, Geita, P.O. Box 532, Geita Region, Tanzania 3 School of Earth |  | Sanislav, Ioan V., Kolling, Sergio L., Brayshaw, Mathew, Cook, Yvonne A., Dirks, Paul H.G.M., Blenkinsop, Thomas G., Mturi, Marwa I., Ruhega, Roger (2015) The geology of the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania. Ore Geology Reviews, 69. 1-16 doi:10.1016/j.oregeorev.2015.02.002 | Journal (article/letter/editorial) | | the giant Nyankanga gold deposit, Geita Greenstone Belt, Tanzania Ioan V. Sanislav a,⁎, Sergio L. Kolling...4011 QLD, Australia Geita Gold Mine, Geita, P.O. Box 532, Geita Region, Tanzania School of Earth & Ocean...February 2015 Keywords: Gold deposits Archean Tanzania Craton Nyankanga gold deposit Roof pendants a...largest gold deposit in the Geita Greenstone Belt of the northern Tanzania Craton. The deposit is hosted...Craton in India, and the Kaapvaal, Zimbabwe and Tanzania Cratons in Africa. Except for gold deposits linked |  | | Journal (article/letter/editorial) | | Gold Mineralization in the Archean Cratons of Tanzania and Uganda, East Africa G. G A B E R T Federal...of Tanzania and Uganda, East Africa. Precambrian Res., 46: 59-69. The Archean cratons of Tanzania and...mineralization in the greenstone belts of the Tanzania and Uganda cratons based on the controlling factors...exploration activities, presently in progress in Tanzania, will result in lithostratigraphic redefinitions...Buganda-Toro belt and partly hidden underneath Lake Victoria, has been suggested al- © 1990 Elsevier Science |  | Cook, Y.A., Sanislav, I.V., Hammerli, J., Blenkinsop, T.G., Dirks, P.H.G.M. (2016) A primitive mantle source for the Neoarchean mafic rocks from the Tanzania Craton. Geoscience Frontiers, 7 (6) 911-926 doi:10.1016/j.gsf.2015.11.008 | Journal (article/letter/editorial) | | source for the Neoarchean mafic rocks from the Tanzania Craton Y.A. Cook a, I.V. Sanislav a, *, J. Hammerli...in the ca. 2.8 to 2.6 Ga Geita Greenstone Belt situated in the NW Tanzania Craton. They outcrop mainly...w50 km south. The mafic rocks outcropping in the Geita area were erupted through oceanic crust over a short...licenses/by-nc-nd/4.0/). Keywords: Mafic rocks Archean Tanzania Craton Primitive mantle MORB Oceanic plateau ...source for the Neoarchean mafic rocks from the Tanzania Craton, Geoscience Frontiers (2015), http://dx |  | | Journal (article/letter/editorial) | | Australia d Geological Survey of Tanzania, P.O Box 903, Dodoma, Tanzania b c a r t i c l e i n f o Article...2012 Keywords: Tanzania Craton Gold endowment Tectonic framework Lake Victoria Region Undiscovered resources...resources Southern East African Orogen Central Tanzania Region a b s t r a c t The lack of new gold discoveries...in recent times has prompted suggestions that Tanzania is mature or approaching maturity, in terms of...regions: 1) the Lake Victoria Region, comprising the gold-endowed East Lake Victoria and Lake Nyanza Superterranes |  | | Report (issue) | | the third with the Geological Survey Division, Tanzania. The paper compares the three airborne techniques.... 2 11agnetic susceptibilities of rocks of the Geita area . 3 Variation of the secondary field due to...Afmag system . . . . . 16 Aerial E1-1 responses over lake, marsh and alluvium . . 17 Aerial EI\1 responses...granite and Nyanzian rocks, Block A, . . . . . . . Geita . faci1zg page . 18 Aerial EM responses over granite...granite, marsh and alluvium, Block C, . . . . . . . . Geita . . 19 Aerial El\1 responses over alluvium, Block |  | | Journal (article/letter/editorial) | | Keywords: Archean; Tanzanian Craton; Nd; Sm; Tanzania; Tulawaka; Geochemistry; Petrology; Greenstone...Geological map of Tanzania (modified from the Mineral Resource Department of Tanzania). resenting important...formation of the Lake Victoria goldfields district including the Bulyanhulu and Geita gold mines. Tulawaka...southwestern Sukumaland, 100 km west of the Bulyanhulu mine and 700 km northwest of the capital city of Dar...(2005) 147–163 149 Fig. 2. Geological map of Lake Victoria district and Sukumaland Greenstone Belt (modified |  | | Journal (article/letter/editorial) | | Aufs~itze Geophysical prospecting in the Lake Victoria Goldfields By DtETER VOGELSANG,Mwanza*) With...Zusammenfassung Zwei Gebiete am Victoriasee in Tanzania, in denen zahlreidle alte Goldbergbaue liegen...erffiutert. Abstract Two areas of the Lake Victoria Region in Tanzania, where most of the old gold prospects...Nations Special Fund, P. O. Box 1440, M w a n z a , Tanzania. Annotation note of the editorial staff: Due to...VOGELSANG - - Geophysical prospecting in the Lake Victoria Goldfields ties as the gold occurrences. This |  | | Journal (article/letter/editorial) | | arsenic content of pyrite. In contrast, in Kumtor and Geita Hill, the invisible gold is principally related...pre-orogenic and post-orogenic (py1 and py3) Geita Hill Tanzania BIF and chert 105 no both greenschist...rocks—Spanish Mountain in British Columbia and Geita Hill in diagenetic pyrite in the black shale host...invisible gold in pyrite from the Geita Hill orogenic deposit, Tanzania, are shown in Figure 4A,B. Here...uniformly low ppm) inofall pyrite from Spanish these Geita Hill deposit. samples. Such low levels of As is |  | Vos, I. M. A., Bierlein, F. P., Standing, J. S., Davidson, G. (2009) The geology and mineralisation at the Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania. Mineralium Deposita, 44 (7) 751-764 doi:10.1007/s00126-009-0245-3 | Journal (article/letter/editorial) | | Golden Pride gold deposit, Nzega Greenstone Belt, Tanzania I. M. A. Vos & F. P. Bierlein & J. S. Standing...Belt at the southern margin of the Lake Victoria Goldfields in Tanzania. It represents an inferred Late... Sulphide minerals in both ore types include pyrrhotite, arsenopyrite, pyrite and accessory sphalerite...sequence and associated with a secondary phase of pyrrhotite deposition. Sulphur isotope compositions range...mineralisation in this deposit. Keywords Lake Victoria Goldfields . Tanzania Orogenic gold . Golden Pride . Late |  | Lawley, C.J.M., Selby, D., Condon, D., Imber, J. (2014) Palaeoproterozoic orogenic gold style mineralization at the Southwestern Archaean Tanzanian cratonic margin, Lupa Goldfield, SW Tanzania: Implications from U–Pb titanite geochronology. Gondwana Research, 26 (3) 1141-1158 doi:10.1016/j.gr.2013.08.025 | Journal (article/letter/editorial) | | Archaean Tanzanian cratonic margin, Lupa Goldfield, SW Tanzania: Implications from U–Pb titanite geochronology...Keywords: Lupa Goldfield Paleoproterozoic Orogenic Gold Tanzania Ubendian Belt a b s t r a c t The Lupa Goldfield... 1. Introduction 1.1. Tanzanian gold deposits Tanzania represents the fourth largest gold producer in...exploration are concentrated in northern Tanzania and the Lake Victoria Goldfield where world-class deposits...contained gold in proven and probable reserves) such as Geita (12.3 Moz; AngloGold Ashanti Annual Report, 2012) |  | Steadman, Jeffrey A., Large, Ross R. (2016) Synsedimentary, Diagenetic, and Metamorphic Pyrite, Pyrrhotite, and Marcasite at the Homestake BIF-Hosted Gold Deposit, South Dakota, USA: Insights on Au-As Ore Genesis from Textural and LA-ICP-MS Trace Element Studies. Economic Geology, 111 (7) 1731-1752 doi:10.2113/econgeo.111.7.1731 | Journal (article/letter/editorial) | | Synsedimentary, Diagenetic, and Metamorphic Pyrite, Pyrrhotite, and Marcasite at the Homestake BIF-Hosted Gold...typical diagenetic pyrite. LA-ICP-MS imaging of pyrrhotite in the same rocks reveals multistage growth in...Tl relative to all generations of pyrite and pyrrhotite. Mass-balance calculations indicate that the...the volume of upper Poorman Formation in the mine area (approx. 12 km3) could potentially yield ~4,500 t...Precambrian and Tertiary lithologies within the mine; (2) other gold deposits of known Tertiary age in |  | | Journal (issue) | | issue .. Published Quarterly at £1 per annum 3 VICTORIA STREET, LONDON, s.w.1 . - - - .. . •• 11...) and T. confusum (Ovv.) in Wheat and Flour in Victoria. By L. W. Miller. J. Dep. Agric. Viet., r944....3, 97-119. Management of Jack Pine Stands in the Lake States. By F. H. Eyre and R. K. Le Barron. Tech...Amiata, Idria and Siele, and the high-grade Spanish mine of Almaden, was controlled by a cartel • known as...available from Italy, the entire output from the Almaden mine in Spain, with the exception of about a thousand |  | | Journal (article/letter/editorial) | | sequences: evidence from the Harp Swarm and Seal Lake Group, Labrador, Canada A. C. Cadman, J. Tarney...bioavailability of phosphorus in eutrophic Amisk Lake, Alberta P. G. Manning, T. P. Murphy & E. E. Prepas...Pb-isotopic compositions at the Geita gold deposit, Snkumaland Greenstone Belt, Tanzania F. Walraven, J. Pape &... (London), Geochemicalfeatures of the ma&ve pyrrhotite deposit of ElKettara (Jebilet Mts., central Morocco)and |  | | 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 |  | Foster, R. P., Leahy, K., Hunns, S. R., Pelham, D. A., Lawrence, S. R., Harrison, A. E. (2001) Pan-African terranes: realizing the metal potential. Applied Earth Science, 110 (1) 15-23 doi:10.1179/aes.2001.110.1.15 | Journal (article/letter/editorial) | | historical mining areas of East Africa—in particular, Tanzania. The result was the discovery of many new gold...among these being Ashanti in Ghana and Geita and Bulyanhulu in Tanzania. Presented at the Second Annual Australian...cratonic remnants of South Africa, Zimbabwe and Tanzania and the early Proterozoic Birimian sequences of...of the Katangan Supergroup, which dominate the region, comprise a lower sequence of subaerial and shallow-marine...considerable evidence for thrust tectonics in the region, the previously accepted stratigraphic correlations |  | Pisemskiy, G.V., Slier, S. D., Zhadnova, T. P., Ganzha, L. M., Pletnev, A. C., Legedza, V. Ya., Yeleyeva, I. V., D'yachenko, A. P. (1975) Types of gold-ore manifestations and exploration criteria of gold mineralization in basement of Russian Platform. International Geology Review, 17 (10) 1121-1127 doi:10.1080/00206817509471571 | Journal (article/letter/editorial) | | may provisionally assign the manifestations of pyrrhotite-arsenopyrite and pyrite-arsenopyrite composition...Monoquartz conglomerates are most characteristic of the region of the KMA and the Ukrainain crystalline shield...increasing toward the base of the layers; sulfides (pyrrhotite and pyrite) are present in the matrix. Increase...though medium in size, deposits of gold in Africa ( Geita), Brazil (Raposos and GoncoSocco), Australia (Hill...quartz veins contain up to 3 -5 % of pyrite and pyrrhotite ( 4). In addition, manifestations of veinlet-segregation |  | | Journal (article/letter/editorial) | | the occurrence of visible pyrite-chalcopyrite¡pyrrhotite¡ sphalerite¡galena mineralisation. Gold is refractory...to modern day sea-floor spreading centres.32 The Lake Superior type BIF deposits in the upper peninsula...formation. Nevertheless, the presence of ancient mine workings associated with the BIF has led several...Distribution of the quartz veins at the Abu Marawat mine area in relation to the structural elements. Lithologies...pyrite-chalcopyrite¡pyrrhotite¡sphalerite¡galena mineralisation. The distribution of pyrite and pyrrhotite vary throughout |  | | Journal (article/letter/editorial) | | of black, crystallized ferberite from the Conger Mine, near Nederland, Boulder Co., Colo. It is good to...Hampden Co., Mass. The best specimens occur at the Old Mine. Michigan—A nice dark grayish cephalopod from the... Gettings. Minnesota — Howard E. Jackson, Moose Lake, Minn., has found pebbles of green plasma (quartz)...large gravel pit located 2 miles southwest of Moose Lake. He also found a large pebble, weighing 1V4 lbs...massive milky quartz, from the abandoned Dodge gold mine, at Lyman, Grafton Co., N . H., was donated to R |  | | Journal (article/letter/editorial) | | Ashanti Timmins Kolar Boddington Campbell Red Lake Geita Hemlo Morro Velho Olympic Dam Telfer Homestake...Ma Archean 2700 Ma 2700–2900 Ma Ma Ma Ma Ma Tanzania Canada Brazil Australia Australia USA Venezuela...occurrence reflecting more than just the gold source region. Stable isotope studies (O, H, C, S and N) have...these isotopes may reflect one or more of source region, pathway and depositional sites the studies are...Synonym Up to few 100 km by few 100 km Carlin, Victoria, Witwatersrand 10–20 by 1–5 km generally Bendigo |  | | Journal (article/letter/editorial) | | arsenic content of pyrite. In contrast, in Kumtor and Geita Hill, the invisible gold is principally related...framboidal and fine-grained pyrite varieties replaced pyrrhotite, greigite and mackinawite “precursors”. The later |
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