 | | Journal (article/letter/editorial) | | subdivision of the Karoo rocks of the Luwegu Basin (Tanzania) and their biostratigraphic classification based...de l'Afrique du Nord et les s~ries Gondsouthern Tanzania is presented. The Karoo strata attain a wana de... 1. Introduction The Luwegu Basin in southern Tanzania represents the most extensive occurrence of Karoo...border to Mozambique and from the Mbarika and Mahenge Mountains in the west 150 to 200 km to the east...Uranerzbergbau-GmbH (Bonn) and Shell Petroleum Development Tanzania Ltd. (Dares Salaam) the investigations started |  | | Journal (article/letter/editorial) | | metamorphism in the Mozambique belt of east-central Tanzania: A petrological, geochemical and geochronological...metamorphism in the Mozambique belt of east-central Tanzania: A petrological, geochemical and geochronological...metamorphism in the Mozambique belt of east-central Tanzania: A petrological, geochemical and PT geochronological...CE PT ED Running title: HT/HP granulites of Tanzania 1 ACCEPTED MANUSCRIPT ABSTRACT This study investigated...rocks from the Mozambique belt of east-central Tanzania, collected close to the town of Ifakara and the |  | | 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 |  | | Journal (article/letter/editorial) | | from eclogite-facies rocks of the Usagaran belt, Tanzania PETRA HERMS Institut fĂŒr Geowissenschaften, UniversitĂ€t...metabasites and metapelites of the Usagaran belt in Tanzania, which are relics of a former oceanic crust subducted...eclogites, metapelites, eclogite-facies fluid, Tanzania. Introduction Subduction of oceanic lithosphere...inclusions found in eclogites from the Western Gneiss Region, Norway. In contrast, for the same area, Larsen...Herms P a n- 4° S 2.6 Ga ? an B ? Af r i c Tanzania Craton e lt ? 0.61-0.65 Ga Zanzibar 6° |  | | Journal (article/letter/editorial) | | rift basin evolution in the Kilombero Rift Valley,Tanzania O. Nilsen, E. Hagen and H. Dypvik Department of...during the Permian and Early Triassic, and in Tanzania they constitute an extensive Karoo-aged sequence...occupies a minor, narrow N-S trending basin in Tanzania. The present rift valley is bounded by Precambrian...(Dingle et al., 1983; Kogbe and Burollet, 1990). In Tanzania, the Karoo strata are contained in several generally...EVOLUTION, KILOMBERO VALLEY, TANZANIA Figure 1. Outline of the geology of Tanzania, with the distribution |  | | Journal (article/letter/editorial) | | the Palaeoproterozoic terrain of southwestern Tanzania Holger Sommer and Alfred Kröner Institut fĂŒr Geowissenschaften...Dar-es-Salaam, P.O. Box 35052, Dar-es-Salaam, Tanzania e-mail: muhongo@udsm.ac.tz Christoph Hauzenberger...the Palaeoproterozoic terrain of southwestern Tanzania. This terrain consists of strongly deformed and...agreement with previous ages reported from this region, from the Ubendian belt farther west, and from...also in good agreement with Archaean ages of the Tanzania craton to the northwest and Archaean rocks in |  | Thomas, Robert J., Roberts, Nick M.W., Jacobs, Joachim, Bushi, Alphonce M., Horstwood, Matthew S.A., Mruma, Abdul (2013) Structural and geochronological constraints on the evolution of the eastern margin of the Tanzania Craton in the Mpwapwa area, central Tanzania. Precambrian Research, 224. 671-689 doi:10.1016/j.precamres.2012.11.010 | Journal (article/letter/editorial) | | the eastern margin of the Tanzania Craton in the Mpwapwa area, central Tanzania Robert J. Thomas a,â , Nick...Bergen, Norway d Geological Survey of Tanzania, Dodoma, Tanzania b a r t i c l e i n f o Article history:...Available online 15 November 2012 Keywords: Archaean Tanzania Craton Palaeoproterozoic Usagaran Geochronology...and geochronology of the eastern margin of the Tanzania Craton near Mpwapwa yields new constraints on...Archaean to Neoproterozoic orogenesis of central Tanzania. The eastern part of the craton comprises typical |  | | Journal (issue) | | You, Donors FEATURE ARTICLE 80 Gem Wealth of Tanzania Dona M. Dirlam, Elise B. Misiorowski, Rosemary...ABOUT THE COVER: Over the last three decades, Tanzania-the subject of the lead article in this issue-has...of gem-quaLity diamonds, rubies, and sapphires, Tanzania is perhaps best known for its production of the...nation of Tanzania has great gem wealth. First known by Westerners for its diamonds, Tanzania emerged in...De Beers has reinstated diamond exploration in Tanzania, n e w gem materials such as transparent green |  | Tamblyn, R., Brown, D., Hand, M., Morrissey, L., Clark, C., Anczkiewicz, R. (2021) The 2 Ga eclogites of Central Tanzania: Directly linking age and metamorphism. Lithos, 380. 105890pp. doi:10.1016/j.lithos.2020.105890 | Journal (article/letter/editorial) | | Journal Pre-proof The 2 Ga eclogites of Central Tanzania: Directly linking age and metamorphism R. Tamblyn...M. Hand, et al., The 2 Ga eclogites of Central Tanzania: Directly linking age and metamorphism, LITHOS... Journal Pre-proof The 2 Ga eclogites of central Tanzania: directly linking age and metamorphism R. Tamblyn1*...retrogressed eclogites in the Usagaran Belt in central Tanzania are among the oldest -p documented eclogites...François et al., 2018), the Usagaran Orogen in Tanzania (ca. 1991 Ma; Möller et al., 1995; Collins et |  | | Journal (volume) | | Interpretation of aerogeophysical anomalies of Southwestern Tanzania by Isaac Marobhe Geologian tutkimuskeskus Espoo...S to 9° 30 ' Sand 32 ° E 10 35 ° E, Southwest Tanzania. The area inc1udes different types of rocks and...density, airborne methods, teetonies, rift zones, Tanzania Isaac Marobh e Helsinki University 01 Technolog)'... 1969). The use of aerogeophysical methods in Tanzania started in 1951 when the Hunting Aerosurveys Ltd...aeromagnetic surveys over some parts of coastal Tanzania to study the basement structures and the extent |  | | Journal (article/letter/editorial) | | Palaeoproterozoic Ndembera Group of southwestern Tanzania: Constraints from SHRIMP UâPb zircon and SmâNd...Dar es Salaam, P.O. Box 35052, Dar es Salaam, Tanzania a r t i c l e i n f o Article history: Received...Palaeoproterozoic Usagaran Belt of southwestern Tanzania. SHRIMP UâPb zircon age data show that the Ndembera...hornblende, plagioclase, biotite, titanite and apatite as indicated by the negative correlation between...event that occurred in southwestern and western Tanzania. © 2015 Elsevier B.V. All rights reserved. 1 |  | Sanislav, I.V., Wormald, R.J., Dirks, P.H.G.M., Blenkinsop, T.G., Salamba, L., Joseph, D. (2014) Zircon UâPb ages and LuâHf isotope systematics from late-tectonic granites, Geita Greenstone Belt: Implications for crustal growth of the Tanzania Craton. Precambrian Research, 242. 187-204 doi:10.1016/j.precamres.2013.12.026 | Journal (article/letter/editorial) | | Greenstone Belt: Implications for crustal growth of the Tanzania Craton I.V. Sanislav a,â , R.J. Wormald a , P...Geita Gold Mine, P.O. Box 532, Geita, Geita Region, Tanzania a r t i c l e i n f o Article history:...2013 Available online 10 January 2014 Keywords: Tanzania Craton Archean granites Zircon ages LuâHf isotopes...to the late high-K granites from the MusomaâMara region, they have lower SiO2 content and higher TiO2 ...greenstone material. Available zircon ages from the Tanzania Craton suggest that crustal growth occurred in |  | | Journal (issue) | | speed of magnetometric work. In the particular region where the present writer has carried out his researches...pronot1nced and produce an eluvial cover; in such a region, however, it is maintained that geophysics, and...encouraging, as the first traverse appeared to reveal a region of low resistivity over a stretch of about 200...200 ft. Details of the traverses in the anomalous region are shown in Fig. 3, the individual anomalies being...strata. On the more southerly line, line Zero, a region of low resistivity was speedily disclosed, but |  | | Book (edition) | | and A. Holmes (1950) : Tanzania Geological Survey and N. J. Guest (1954) : Tanzania Geological Survey and...Tidsskrift and K. S. Heier (1961) Figure 15-9: Tanzania Geological Survey and N. J. Guest (1954) Figure...biotite sOvite (biotite, 10 to 40 per cent), apatite sdvite (apatite, 10 to 30 per cent), see Table 1-2. The...Sphene, ilmenite, rutile, Ti-magnetite, zircon, apatite, pyrochlore Volatile elements: F, Cl, H,O H...villiaumite Biotite, hornblende, cancrinite, calcite, apatite Localities: ilimaussaq, Lovozero, Miask, Haliburton-Bancroft |  | | Book | | volcanic regions (e.g. Rungwe in Southwestern Tanzania) are poorly known, hence the need to increase...Mafic-Ultramafic Magmatism in the Southwest Uganda Region of the African Rift: Implications from Experimental.... . . ... 3 The Crust Under the Canary Islands Region ............. 4 Network of Fractures and Identity...Identity of Vertical Movements in the Canary Islands Region ........................... 4.1 Transoceanic and...Mangbai, northern Sudan; Karoo rifts: Luangwa, Chilwa-Ruaha, Zambezi, Shire-Urema; Mesozoic and Cainozoic rifts: |  | | Book | | analogues. This is also true in the Highwood Mountains region of the USA. Such occurrences may be understood... . . . . . . . . . . . . . . . . . . . . 2.13 Apatite . . . . . . . . . . . . . . . . . . . . . . . ... . 4.13.1 Volcanic Activity in the Aeolian Arc Region. . 4.13.2 K-Rich Rocks of the Tristan da Cunha...of Potassic Volcanism in the Highwood Mountains Region . . . . . . . . . . 14.5.2 Generation of Potassic...mantle metasomatism. Phlogopite, K-richterite and apatite found in the mantle xenoliths within the K-rich |  | | Book | | Bibliography-Sweden 4 10 410 Bibliography- Switzerland 4 I 0 Tanzania 410 The Mozambique Orogenic BelrEasr Africa's...The corundun1 mines of the Thai/Cambodian border region straddle the border. Thus the phrase "Thai ruby"...round from North Carolina and a 1.87 et oval from Tanzania. (Photo: Harold & Erica Van Pelt/ American Museum...incellectually asleep. apparencly refers co the Araka.n region of present-day Burma. RUBY & SAPPHIRE 37 Chapter...particularly those from che Thai/Cambodian border region, are faceced with overly shallow pavilions. In |  | | Book (edition) | | for nearly one third of its exports. The Flanders region is famous for its textiles. Most of Belgiumâs trade...extensive upland basins, to the Black Sea coastal region on the eastern fringe of the country. The climate...products. The irrigated central basin and the coastal region to the east of the Irrawaddy delta are the main...languages GUANGDONG (KWANGTUNG) STATUS: Autonomous Region AREA: 220,400 sq km (85,075 sq miles) POPULATION:...NE] MONGOL (INNER MONGOLIA) STATUS: Autonomous Region ARE* 450.000 sq km (173,700 sq miles) POPULATION: |  | | Book | | localities for good ilmenite crystals exist in the region (Brunet, I 977b ). NEW YORK Amity, Orange County...in Switzerland, it is only in the Maderanertal region of east-central Canton Uri that clefts bearing...clefts are found fairly commonly throughout this region, such that only a handful of notable finds during...about 20 other quartz mines are operated in the region of the Subpolar Urals, northwest of Saranpaul,...collected intermittently from pegmatites of the region, associated with crystals of corundum, rutile, |  | | Journal (issue) | | Rhexoxylon and Dadoxylon from the Lower Shire Region of Nyasaland and Portuguese East Africa. By Professor...Rhexoxylon africanum Banc. Half the expanded pith region of a large stem, with shreds of normal secondary...trench crossing bands of iron ore iron ore ba11cls. Region indicated by rectangular outline 011 Text-fig.... RHEXOXYLON AND DADOXYLON FROM THE LOWER SHIRE REGION OF NYASALAND AND PORTUGUESE EAST AFRICA COMPARED...STEMS, FROM THE Karroo rocks of the Lower Shire region of Nyasaland and neighbouring parts of Portuguese |  | | Journal (issue) | | 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...afforded by the Carrizo Sandstone of the Winter Garden region of Texas in which the water was computed to be...Portugal and Tunisia, particularly those of the latter region. At present, the Nigerian Turonian appears to be...at Ezillo, Nkalagu and Calabar· in the Eastern Region of Nigeria. At the latter locality the vascoceratid |  | | Journal (volume) | | Rhexoxylon and Dadoxylon from the Lower Shire Region of Nyasaland and Portuguese East Africa . By Professor...Rhexoxylon africanum Banc . Half the expanded Pith Region of a large Stem, with Shreds of normal Secondary...other highly interesting rocks that occur in the region of Lake Chilwa (or Lake Shirwa), in southern Nyasaland.... Accessory Minerals : Magnetite, sphene, and apatite are almost invariably the accessory minerals, though...iron ore, and containing ac cessory sphene and apatite â are considered to be metadolerite derived from |  | | Book (edition) | | African members of the Commonwealth of Nations 33. Region al organizations in Africa 34. Cooperative associations...Rhodesia mainland portion of United Republic of Tanzania Central African Republic Egypt Burundi Lakes...is also great variation and contrast from region to region within most countries. By some economic criteria...Cameroon, the Central African Republic, Uganda, and Tanzania. The second prototype is characterized by an exchange...collective fields in Mali or of village collectives in Tanzania. On the other hand, the nationalizations of several |  | | Book (edition) | | economy. AZORES STATUS: Self-governing Island Region of Portugal BAHRAIN STATUS: State AREA: 661 sq...for nearly one third of its exports. The Flanders region is famous for its textiles. Most of Belgiumâs trade...products. The irrigated central basin and the coastal region to the east of the Irrawaddy delta are the major...GUANGXI-ZHUANG (KWANGSI-CHUANG) STATUS: Autonomous Region AREA: 220,400 sq km (85,075 sq miles) POPULATION:...440,000 JIANGXI (KIANGSI) STATUS: Autonomous Region CAPITAL: Urumqi JILIN (KIRIN) XIZANG (TIBET) |  | | Journal (issue) | | other highly interesting rocks that occur in the region of Lake Chilwa (or Lake Shirwa), in southern Nyasaland...reddish-brown. AccessoryMinerals: Magnetite, sphene, and apatite are almost invariably the accessory minerals, though...iron ore, and containing accessory sphene and apatite·-are considered to be metadolerite derived from...sedimentary grains contains a euhedral crystal of apatite, and, in another grain, was a zircon-the only zircon...type '' as described earlier, pale sphene, and apatite in newlyintroduced quartz, with which are associated |
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