 | | Journal (article/letter/editorial) | | 842-872 ADDITIONAL DATA ON THE GEOLOGY OF THE MBEYA CARBONATITE L. J. FICK AND C. VAN DER HEYDE....................... Geological setting of the Mbeya Carbonatite ............................ Introduction........................ The Carbonafire-bodyat Panda Hill and its associatedcontact and 851 dike-rocks.......................... 863 864 Mineralogyof Mbeya Carbonatite.......................................been established during the development of the Mbeya Carbonatiteas an economicprospect subsequent to |  | | Journal (article/letter/editorial) | | Geomorphologyof the Mbeya Carbonatite ................................ Geology of the Mbeya Carbonat{re ......... Compositionand characterof pyrochlorefrom Mbeya ..................... Value of pyrochlore ........present. INTRODUCTION The Mbeya Carbonatite(originally called the "Panda Hill Pyrochlore Deposit") is nearthe...milesin a direct line west-south-west of the townof Mbeya. The carbonatitewasinvestigated because of its pyrochlore...mappingfor the Tanganyika GeologicalSurvey near Panda Hill in 1950, A.M. M. Spurr observedcrystallinelimestonethat |  | | Journal (article/letter/editorial) | | barium-strontium pyrochlore in a biotite roclc from Panda Hill, Tanganyilca. 1 B y E. J~iGE~, Ph.D., and E....biotite rock (contact-rock of a carbonatite) from Panda Hill, Tanganyika, as small euhedral yellowish-grey...pandaite, from Panda Hill, is proposed for the new mineral. N the concession area of the Mbeya E x p l o r...r a t i o n C o m p a n y ~ (Mbexco) near Mbeya (Tanganyika) (fig. la) Dr. J. F. 0sten, former geologist...and the Colonial Development Corporation. 2 The Mbeya Exploration Company Ltd. (Mbexco) is jointly owned |  | | Journal (article/letter/editorial) | | (dolomite bearing) dikes at Sengeri Hill (Mbeya carbonatite, southwestern Tanzania, East Africa; SUWAet al., 1969)...trending belt were sampled: Sukulu Hill, Tororo Hill and Bukusu Hill (Fig. 2, for geology see DAVIES, 1956)...and fenitized granite. The carbonatite at Tororo Hill represents a plug along a dike. The prominent spine...BAERTSCHI (1957): 9. Chilwa Island (2); 10. Chigwakwalu Hill, Tundulu (2); 11. Kolyano Crater (1); 12. K&we Crater...(4); 16. Mrima Hill (1); 17. Kwsrao (1); 18. Oldoinyo Dili (1); SUWA et aZ. (1969): 21. Mbeya (24); the number |  | | Journal (article/letter/editorial) | | and texturally complex. Ankerite, RE carbonates, fluorite, sulfides and quartz are common associates. Unlike...Heinrich and Shappirio,1966. Irregular nodules with fluorite, cryolite and other rare alumino-fluorides of...and 1.42 fluorite with cores of 9G99/6 barite, von Eckermann, 1948, 1950. the rest fluorite. (Continueil...as barite-rich carbonatite breccia zones. Mbeya (Panda Hill) Tanganyika Chilwa Island, Malawi Late quartz-calcite...quartz-calcite veins with barite, fluorite, chalcopyrite and galena cut "intermediate zone" sdvite. |  | | Journal (article/letter/editorial) | | Table 1. The samples from Phalaborwa, Ton>ro, Panda Hill and Goudinii were collected from fre~,;hly-blasted...Gelai magnesite mine, east shore of L. Natron, Tanzania; trona samples were collected from the lake crust...~I~,U * ~' T,atoro,O r.- TmzduluH~II,M e o.~rs Mbeya,[ Kerimo~i. T t30ldoinyo~ngal -E SA ¢' e , e...63% BD 892 [ Kerimasi, [ Recent 2440 BD 893 J Tanzania J ( < l m.y.) 1720 BD 1462 ~Tororo, L. Tertiary...1488 Sukulu, Uganda L. Tertiary 1568 BD 742 Panda Hill, Tanzania U. Jurassic 2200 BD 1574 Kangan kunde, Malawi |  | | Journal (article/letter/editorial) | | River. Ontario. Canada; carbonatite Panda Hill, Mbeya, Tanzania; carbonatite Woodcox mine, Hybla, Ontario;...MacDonaldmine,Hybla,Ontario; granitic pegmatite Panda Hill, Mbeya, Tanzania; carbonatite Leushe, Lake Kivu, Zaire;...amphibole;Ap : apatite; Bt:biotite; Cal :calcite; Fl :fluorite; llm:ilmenite; Kfs:potassiumfeldspar; Mag:magnetite;...the formation of bastnaesite, monazite, barite, fluorite, qlrartz, and sulfides. At low pressure,alteration...bariumstrontium pyrochlore in a biotite rock from Panda Hill, Tanganyika. Mineralogical Magazine, 32, 10-25 |  | | Journal (article/letter/editorial) | | barium-strontium pyrochlore in a biotite rock from Panda Hill, Tanganyika, Minerol,og.Mag.,32, 10-25 (1959)...a roof pendant of the Mbeya (also called the Panda Hill) carbonatite, near Mbeya, Tanganyika. The rock...biotite, kaolinized orthoclase, and limonite, minor fluorite, quartz, apatite, zircon, chlorite, piagioclase...5 9 1 ( 7 0 ) . The name is for the locality, Panda Hill, and is suggested for minerals of the pyrochlore...near the village of Dzhuzumli, Mt. Zirabulaksk region, Bukhara, in a hematite-calcite vein cutting banded |  | | Book (edition) | | (Jacupiranga, Brazil). In addition deposits of fluorite, magnetite, vanadium, and vermiculite occur associated...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...phosphate, Fe, Cu, barite, vermiculite, CaCOs;, fluorite, Ti, nepheline, and Zr. HISTORY OF CARBONATITE...Jr., completed most of the field work on the Iron Hill complex of Gunnison County, Colorado, in 1912-1913 |  | Neave, David A., Black, Martin, Riley, Teal R., Gibson, Sally A., Ferrier, Graham, Wall, Frances, Broom-Fendley, Sam (2016) On the Feasibility of Imaging Carbonatite-Hosted Rare Earth Element Deposits Using Remote Sensing. Economic Geology, 111 (3) 641-665 doi:10.2113/econgeo.111.3.641 | Journal (article/letter/editorial) | | in North America (Mountain Pass, Oka, Iron Hill, and Gem Hill), albeit in nondigital form. As reviewed...hyperspectral instruments. Examples include mapping the Iron Hill carbonatite-alkaline complex in the United States...Malawi, Mountain Pass in the United States, Panda Hill in Tanzania, and Sokli in Finland were sourced from...30˚ Uyaynah 0˚ Tororo & Sukulu Kangankunde Panda Hill Chilwa Island, Songwe & Tundulu Phalaborwa...= bastnäsite, Bt = barite, Cal = calcite, Fl = fluorite, Haung = huanghoite, Mag = magnetite, Mz = monazite |  | | Journal (article/letter/editorial) | | europium in several minerals including apatite, fluorite, strontianite, and scheelite. Information on the...these same rocks. Similar results are found for fluorite. INTRODUCTION THE RARE earth element europium...state of europium produces a broad line in the blue region of the color spectrum while the trivalent state...state produces several narrow lines in the red region of the color spectrum. In the light of this knowledge...give a constant energy response for the wavelength region of 400-700 nm. This adjustment has been calibrated |  | | Journal (article/letter/editorial) | | Utah 84112 Mineralogy and Petrology of the Iron Hill Carbonatite Complex, Colorado determine what, if...are ubiquitously assotypes occurring in the Iron Hill carbonatite ciated. For this study I have chosen...Iron complex have been examined in order to deter- Hill carbonatite complex, one of the largest mine the...alkaline igneous rocks with which they are The Iron Hill carbonatite body, also known ubiquitously associated...south of the town of Gunnison. developed at Iron Hill. The carbonatites are The composite intrusion, occupying |  | | Report (issue) | | Most production appears to be centered in the region of the major alkaline intrusive complexes of Lovozero...Peninsula and Vishnevogorsk in the middle Ural region. • Both niobium and tantalum are held on the U...~~-~'-'~· ec·I' Q ~. .r :!~;>'. ~, - . . · Mnma Hill TAPanda H'll NZANIA •axa Geolog;c d • · / ...Greenland United States Brazil Gabon Kenya Nigeria 2 Tanzania Uganda Zaire Malaysia2 · 3 Soviet Union3 Thailand2...figures quoted by ISMI for Greenland, Gabon, Kenya, Tanzania, and Uganda are not accorded status even within |  | | Journal (article/letter/editorial) | | Malawi: Evidence for a Depleted Mantle Source Region, Liquid Immiscibility, and Open-System Behaviour...concentrated primarily in the core region. Minerals such as fluorite, barite, quartz, galena, pyrite, Mn-rich...Zambezi Rift (Fig. 1; Garson, 1965, 1966). This region also contains major intrusions of peralkaline granite... / ^ Illlilllldf sIIIIr /J Zambia J i/ * Tanzania - - • . - . - • " • Chilwa .Alkalln*...analyses of Chitwa Island carbonatites and quartz-fluorite-bearing sample (G 255) G 357 C G369 C N 1290 |  | Johnson, Clark M., Bell, Keith, Beard, Brian L., Shultis, Aaron I. (2010) Iron isotope compositions of carbonatites record melt generation, crystallization, and late-stage volatile-transport processes. Mineralogy and Petrology, 98 (1) 91-110 doi:10.1007/s00710-009-0055-4 | Journal (article/letter/editorial) | | dolomite-bearing carbonatites, enriched in REEs, fluorite, and incompatible trace elements such as U and...with distance from the source. The occurrence of fluorite, including in some low-grade fenites, suggests...fluid inclusions in minerals such as apatite and fluorite. The complexities of fluidmineral interaction... 2004; Anbar et al. 2005; Polyakov et al. 2007; Hill and Schauble 2008; Shahar et al. 2008). Although...ijolite, phonolite, nephelinite. Oldoinyo Lengai, Tanzania Still active Natrocarbonatite flows and tuffs |  | | Journal (article/letter/editorial) | | subvolcanic carbonatite from the Panda Hill deposit, Mbeya, Tanzania (van der Veen, 1965). Secondary dolomite...amphiboles from the Buldym carbonatites fall in region G, where amphiboles are in equilibrium with carbonatitic... chondrodite, titanite, corundum, quartz, and fluorite are noted. Zircon, apatite, magnetite, ilmenite...chromite, hematite, millerite, corundum, quartz, and fluorite are less abundant. Two mineral assemblages of |  | | Journal (article/letter/editorial) | | Kangankunde, Nkalonje, and Tundulu in Nyasaland, Mbeya (Panda Hill) and Wigu in Tanganyika, and Mrima in Kenya...pattern in apatitebastnasite sSvite from Nathace Hill, Tundulu, by Garson (unpublished Ph.D. thesis, 1961)...acknowledged. The carbonatite complex at Kangankunde Hill, Nyasaland, is one of the intrusions of the Chilwa...ankerite or strontianite locally dominant. The Wigu Hill carbonatite lies at 7 ~ 26' S., 37 ~ 34' E. near...goyazite, Wigu Hill, Tanganyika. Analyst: R. Pickup. 3. Strontian florencite, Kanganknnde Hill, Nyasaland |  | | Journal (issue) | | Dam Site 292 Plate XVI • '' 292 Plate XVII Sena Hill, Lower Zambezi . • • • • Plate XVIII Bridge over...Text-fig. 1 Text-fig. 2 Sovite Dyke, Chigwakwalu Hill, Tundulu . facing p. • Xenoliths in Sovite, S.E...solution appeared to be the removal of Cox's Fort Hill, overlool...able to point out, however, that some of Cox's Fort Hill and the adjacent area (which was planned for installation...necessary to· map carefully the area of Cox's Fort Hill and to calculate the quantities of black shale and |  | Mangler, Martin F., Marks, Michael A.W., Zaitzev, Anatoly N., Eby, G. Nelson, Markl, Gregor (2014) Halogens (F, Cl and Br) at Oldoinyo Lengai volcano (Tanzania): Effects of magmatic differentiation, silicate–natrocarbonatite melt separation and surface alteration of natrocarbonatite. Chemical Geology, 365. 43-53 doi:10.1016/j.chemgeo.2013.11.027 | Journal (article/letter/editorial) | | Halogens (F, Cl and Br) at Oldoinyo Lengai volcano (Tanzania): Effects of magmatic differentiation, silicate–natrocarbonatite...their alteration products from Oldoinyo Lengai (Tanzania) are compared to those of associated silicate...natrocarbonatites from Oldoinyo Lengai volcano (Tanzania) and the associated silicate rocks in order to...Oldoinyo Lengai Volcano Oldoinyo Lengai is located in Tanzania, approximately 16 km south of Lake Natron within...ENGW1 rock samples Fort Portal water samples Panda Hill escarpment OL 804 fresh and altered natrocarbonatites |  | | Catalog/List | | rusting both sides of matrix with cubic purple Fluorite crystals to -?:" in s i ze c:nd a l i t tle Quartz...Quartz . 2x2x1t ", £4 . 00 20 . CARMINITE. Benjamin Hill , Sonora , Mexico . Rich carmine- red masses with...£1 . 7Sp 2S . CHALCEDONY r eplacing octahedral Fluorite . Wheal Mary An n , Menheni ot , Cornwall . Ch...til cavity in matrix , 1X~ II , £2 .75p 4,2 . FLUORITE . Bl ack dene Mine , Weardale , Co. Durham . A...ce display specimen . 8x5x}~" , £25 .50p 43 . FLUORITE . Hi lton Mine , Scordale , westmore l and . Golden |  | | Journal (article/letter/editorial) | | James Bay (Canada); Fen (Norway); Panda Hill, Ngualla (Tanzania)]. Brazil has significant Nb reserves...lesser hydrothermal rare-earth fluorocarbonate-fluorite-quartz-ferrodolomite carbonatite. The potassium...St Honoré (0.41 wt.%); Oka (0.45 - 0.66 wt.%); Panda Hill 0.43 - 0.87 wt.%; Elk Creek 0.67 wt.%) (see Mitchell...those with a broad 400 - 500 nm band in the blue region of the spectrum (Verity, Howard Creek, Big Beaver...apatite has been noted from the Ngualla carbonatite (Tanzania) by Witt et al., (2019). This carbonatite has |  | | Journal (article/letter/editorial) | | ooCeurs in the carbonatite plug which forms Nkumbwa Hill Oat. 10 10"S. long. 32 ~ 51' E.), 15 miles east...recorded being Panda Hill in Tanganyika, 90 miles to the north, and Kangankunde Hill in Nyasaland, 380...Nkumbwa is much more akin to Kangankunde than to Panda Hill. Most of the specimens used in the present study...Rhodesia Geological Survey during his mapping of the hill in 1952, but additional material was obtained by...apatite, for whereas the fine red soils on ~Nkumbwa Hill contain abundant apatite liberated from the underlying |  | | Journal (article/letter/editorial) | | the Kuangou fault zone, the lithology in the mine region is represented by the recrystallized marbles (H8c...variable magnetite, monazite, bastnaesite, barite and fluorite (Fig. 2c). Dolomite is usually euhedral with a...untwinned. Very fine monazite, bastnaesite and fluorite bands occur in the dolomite marble, together with...contains banded magnetite, monazite, bastnaesite and fluorite aggregates, suggesting that the fold was formed...magnetite, monazite, allanite, dolomite, quartz, fluorite, and barite (Yang et al., 2000a, 2003). The coarse-gained |  | | Book | | gemological wealth of East Africa. This unique region encompasses ·what may be the world's richest gem...gemologist and geologist, Dr. Peter Keller. Kenya and Tanzania are revealed in their full mineralogical splendor...chrome tourmaline are widely identified with the region. ( continuedon backflap) ♦ ♦ ♦ ♦ ♦ ~...Conclusion 11 Chapter 2. Diamond Deposits of Tanzania 15 Location 16 Geology 18 Mining 20 Properties...Northern Province, Tanzania 28 Ruby and Sapphire from Umba, Tanga Province, Tanzania 32 Sapphire from Kenya |  | | Journal (article/letter/editorial) | | probaby related to formation of associated massive fluorite deposits, known to be of low-temperature hydrothermal...' zz ° M i .IEI31~ln Mineralization (F) [ ] Fluorite Aml~~ i E• Carbonatite B IndianOcean 0L'~-J00km...The Amba Dongar complex also hosts the largest fluorite deposit ( 11.6.10 6 t 1 at 30% CaF2; Deans et...carbonatite of Viladkar, 1981 ), some of which are fluorite-bearing. The ferrocarbonatites can be subdivided...of the massive fluorite deposits, given that ferrocarbonatite emplacement and fluorite deposition are |
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