 | | Journal (article/letter/editorial) | | relative to co-exisiting apatite, but the light rare-earth elements partition into apatite. Magnetite from Kerimasi...KEYWORDS: mineral chemistry, carbonatite, carbonate, apatite, magnetite, Africa. Introduction CARBONATITES...common phases in these rocks - the carbonates, apatite and magnetite-rich spinel, though some recent studies...- Verwoerd, 1967), Tundulu Hill (Upper Jurassic - Garson, 1962), Panda Hill (Lower Cretaceous - Van Straaten... x x x Malawi M26 Tundulu Hill M28 ditto x x Tanzania BD724 Panda Hill BD892 Kerimasi BD893 ditto |  | | Journal (article/letter/editorial) | | ..................... The Carbonafire-bodyat Panda Hill and its associatedcontact and 851 dike-rocks...related to the intrusion of the main carbonatite at Panda Hill. Here the salientpoint,madeby the author,is...representativeof the group, as it was collectednear Sengeri Hill and it may have been altered by the SengeriHill...Sen#eri Hill Carbonatite.--Theonly importantcarbonatiteoccurrencew apart from the body at Panda Hill (describedelsewherein...4RBONZITITE 847 Fick)--is that found at Sengeri Hill. It was examinedand sampledduring March and April |  | 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...in Malawi, Mountain Pass in the United States, Panda Hill in Tanzania, and Sokli in Finland were sourced...30˚ Uyaynah 0˚ Tororo & Sukulu Kangankunde Panda Hill Chilwa Island, Songwe & Tundulu Phalaborwa...Amph = alkali amphibole, Ank = ankerite, Ap = apatite, B2S-B3S = intermediate fluorocarbonates, Bast |  | | Journal (article/letter/editorial) | | danalire, 921 Wheal Cock, St. Just-in- Penwith : apatite, bertrandite, herderite, helvine, phenakite, scheelite...thomsonite, 506 Berk Hill: apophyllite, 508 Black Cave, Islandmagee: mordenite, 5O9 Carnmoney Hill, Belfast: calcite...lithomarge, xlvi White Mountain: mordenite, 509 Wolf Hill, Legoniel: apophyllite, 508 Tipperary Knockanroe...Knockanroe and Ballygown South mines, Silvermines district: pyrite, marcasite, arsenopyrite, blende, galena, baryte... 136 Shallee and Gortadyne mines, Silvermines district: pyrrhotine, arsenopyrite, chalybite, pyrite, |  | | Journal (article/letter/editorial) | | pyrochlore(about 63 percentCb•Os), magnetite,and apatite. Eleven million tonsof ore containingabout0.3 percentCb205have...The Mbeya Carbonatite(originally called the "Panda Hill Pyrochlore Deposit") is nearthe southwestborderof...mappingfor the Tanganyika GeologicalSurvey near Panda Hill in 1950, A.M. M. Spurr observedcrystallinelimestonethat...distinctiveaccessorymineral assemblageis magnetite,apatite and pyrochlore(or varietiesof Columbium-bearing...dissected by deepgullies. The sidesof the valleysand hill-slopesmay be as steepas 30 degrees. -. : - : |  | | 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...certain exchange-capacity. The name pandaite, from Panda Hill, is proposed for the new mineral. N the concession...Britain. The Nibeya carbonatite (Mso known as the Panda Hill carbonatite is a pyrochlore-bearing carbonatite...AB~rRCO~M g g IG, Ia : P O S I T I O N OF PANDA HILL IN TANGANYIKA o 8 FtG. l b : PART OF THE |  | | Journal (article/letter/editorial) | | by Holmes (5) from north of Sokoto Hill in the Mozambique district. Dr. Holmes' specimen is much altered...outcrops are found at intervals as far south as Bunga Hill on the western edge of the Urema Sunkland, 150 miles...extreme south the phonolites and nephelinites of Panda and Bunga Hills are associated with the marginal...aegirine and soda-amphiboles. No. 46 from Chinje Hill is quite similar, but contains a few phenocrysts...New Zealand. The two other specimens from Yajenje Hill (Nos. 42 and 43) are trachytoid phonolites containing |  | | Journal (article/letter/editorial) | | over 4000 km from the Red Sea in the north to Mozambique in the south. It is the archetypal continental... Journal Pre-proof region of the Rungwe Volcanic Province (RVP) (Fig. 1b) (Rasskazov et al., 2003; Mesko...Jurassic to Early Cretaceous (165-116 Ma) Panda Hill, Sengeri Hill, Mbalizi, Musensi and Songwe Scarp carbonatites...analytical routine to minimise beam effects. For apatite analyses, F migration was investigated using the...around euhedral igneous minerals (mostly titanite, apatite, phlogopite and sanidine; detailed -p below) |  | | Journal (article/letter/editorial) | | Tororo (40) Fort Portal (0.5) Homa Mountain (6.6) Panda Hill (116) Jacurpiranga (131) Kangankunde (123) Chilwa...signature of 0.420& (138 °C). The sample from Panda Hill, Tanzania (116 Ma) gives 0.309& (293 °C). Samples...Mountains, MT Bearpaw Mountains, MT Magnet Cove, AK Panda Hill, Tanzania Oka, Canada Oka, Canada Oka, Canada...(2010) 4110–4122 0.004& and NMNH_109369-49 from Panda Hill at 0.309 ± 0.015&, correspond to temperatures...the Lower Cretaceous (e.g., NMNH_109369-49 from Panda Hill, Tanzania and BOK-7c from Oka, Canada) record |  | | Journal (article/letter/editorial) | | carbonatites. The process results in the decomposition of apatite and magnetite, removal of soluble carbonates and...re-evaluated [e.g. Oka (Canada); Fen (Norway); Panda Hill (Tanzania)] for their economic potential. Although...calcite carbonatite, magnetite apatite dolomite carbonate, magnetite apatite olivine calcite carbonatite...Development Corporation. The pyrochlore-bearing apatite dolomite carbonatites of the complex are considered...(see below), and carbonatites in the East Sayan province, especially the Nizhnesayanskii and Bolshyetaginskoye |  | | Journal (article/letter/editorial) | | ooCeurs in the carbonatite plug which forms Nkumbwa Hill Oat. 10 10"S. long. 32 ~ 51' E.), 15 miles east...rauhaugite. The principal accessory minerals are apatite (including strontian fluorapatite), isokite, pyrite...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 |  | | 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...orthoclase, and limonite, minor fluorite, quartz, apatite, zircon, chlorite, piagioclase, rutile, and heamatite...zircon0.42, phlogopite 0.27, orthoclase O.42, apatite 0 92, cassiterite 0.32, quartz 0.33, rutile 0.15/s...5 9 1 ( 7 0 ) . The name is for the locality, Panda Hill, and is suggested for minerals of the pyrochlore |  | | Journal (article/letter/editorial) | | Table 1. The samples from Phalaborwa, Ton>ro, Panda Hill and Goudinii were collected from fre~,;hly-blasted...Pegmatoid body, a coarse ~gmatitic phlogopite-apatite pyroxenite (Verwoenl 1967). The Goudini sample...contained in the lattices o! ether phases, mainly apatite and/or phi!ogopite and, in the Oldoinyo Lengai...been supplememed by a microprobe anal~'sis of apatite in carbonatite BDI609, which gives F 3.4~o, Cl...F/CI voluraes differ from those of apatite in the pegmafitic mica-apatite pyroxenite (Table 2) which has |  | | Report (issue) | | 0.93 SnO2 0.00 0.25 (1) Oka, Canada; diopside+apatite+pyrite 0.3%, H2 O by difference; corresponds to...carbonatites; detrital. Association: Zircon, aegirine, apatite, perovskite, columbite. Distribution: Numerous...Kaiserstuhl, Baden-Württemberg, and in the Eifel district, Germany. In Russia, at Miass and Vishnevogorsk...Narssârssuk, Greenland. From the Mbeya carbonatite, Panda Hill, near Mbeya, Tanzania. On Rouma Isle, Los Islands |  | | Journal (article/letter/editorial) | | complexes are located in southern Malawi and adjacent Mozambique, at the junction of the north-south-trending...part of the Chilwa Alkaline Province (CAP). A general account of this province, including its tectonic setting...1. Inset shows location of the Chilwa Alkaline Province (CAP) at the southern extremity of the East African...(1987). The most basic silicate rocks of the entire province are the Chilwa Island olivine nephelinite dykes...carbonatites ~130Maold.K—Kangankunde (Ziegler, 1992),P—Panda Hill (Morisset, 1992), C—Chilwa Island (this work) |  | | Journal (article/letter/editorial) | | Island, S.Malawi Kangankunde, S. Malawi Nathace Hill, Tundulu, S. Malawi Deerdepoort, Pretoria Central...dolomite/magnetite, apatite, zircon, pyrochlore Ankerite/apatite pyrochlore, magnetite Calcite/magnetite, apatite Bas...Bastnaesite-ankerite/apatite, magnetite Ankerite, calcite/K-feldspar, magnetite, apatite, quartz Calcite/apatite, phlogopite...phlogopite Calcite, ankerite/apatite, quartz Calcite/niocalite, magnetite Carbonatite Dawson et al. (1995);...sylvite Calcite/apatite, magnetite pyrochlore Calcite/magnetite, phlogopite, apatite 0 113±6 40 (25–55) |  | | Journal (article/letter/editorial) | | (REE) and Nb, and host significant deposits of apatite, vermiculite, Cu, Ti, fluorite, Th, U, natural zirconia...Alkaline-carbonatite complexes are significant sources of Cu, apatite, fluorite, vermiculite, and other commodities. Most...surface; dolomite-brown, Naamphibole – green, apatite – white. Coin for scale is 2 cm in diameter. subdivides...carbonatiterelated deposit types (e.g. apatite ores at Seligdar apatite deposit, Russia; Prokopyev et al....intergrown with, and included in, dolomite, calcite, apatite, REE- fluorocarbonates, pyrochlore, fluorite, and |  | | Journal (article/letter/editorial) | | Zaitsev • Keith Bell Sr and Nd isotope data of apatite, calcite and dolomite as indicators of source,...Abstract A detailed Sr-Nd isotopic study of primary apatite, calcite and dolomite from phoscorites and carbonatites...data from apatite define at least two distinct groups of phoscorite and carbonatite. Apatite from the...2975ppm, N d = 2 7 5 660ppm and S m = 31.7 96.2 ppm. Apatite from the second group has higher ~TSr/8~'Sr (0...to the later phoscorites and carbonatites. One apatite sample from a carbonatite from the earlier group |  | | Journal (article/letter/editorial) | | presence of europium in several minerals including apatite, fluorite, strontianite, and scheelite. Information...coexisting mineral pairs may be obtained. The apatite in oarbonatites and genetically related igneous...strontianite when it crystallizes together with apatite in these same rocks. Similar results are found...the following minerals or synthetic crystals: apatite, fluorite, plagioclase, scheelite and strontianite...N. MARIANO and P. J. RING 652 Apatite: Ca,(F, CL, 0H)(P04)3 Apatite spectra are given in Fig. 2a, b |  | | Journal (article/letter/editorial) | | aegirine, phlogopite and microcline with accessory apatite, pyrochlore, magnetite, pyrrhotite and chalcopyrite...the high cliffs on the northeastern side of Mutoro Hill contain up to 50% feldspar while some are rich in...found and sampled from the upper parts of Mutoro Hill. lxtterite The lower part of the weathering profile...weathered material in which the major components arc apatite, microcline and albite which arc residual phases... r o a d or track ~ river + Lulime+ + + ~ + Hill + + + 500 m + ++~ ~++Q~+++ +++ + ~ + +~+ + + + |  | | Journal (article/letter/editorial) | | Baerzhe; (35) Bonga; (36) Kaluwe; (37) Mrima Hill; (38) Panda Hill; (39) Oka; (40) Araxa; (41) Catalão I; (42)...Chuktukon Toongi Baerzhe Bonga Kaluwe Mrima Hill Panda Hill Oka Araxa Catalão I Catalão II Salitre Tapira...agpaitic intrusive massifs of the Gardar alkaline province, Greenland Shield, namely, Motzfeldt (1.27 Ga)...by two objects, both in the Labrador alkaline province (Fig. 1), the Two Tom REE–Be–Nb (1.34 Ga) and...Analogous to the foidic-type deposits of the Gardar Province, their main niobium mineral is finely disseminated |  | | Journal (article/letter/editorial) | | of the carbonate and, (3) in some cases,to the province. A carbonate-richrock may be classifiedasa carbonatiteif...barite-rich carbonatite breccia zones. Mbeya (Panda Hill) Tanganyika Chilwa Island, Malawi Late quartz-calcite...severaltypes of carbonatite dikes occur together in a district, the baritic type is the youngest. 2. In mineralogically...to major amounts: calcite, dolomite, ankerite, apatite, barite, pyrochlore (pandaite); (rare species)...proxies primarily for K in silicates and for Ca in apatite and the carbonates and therefore has a more diverse |  | | Journal (article/letter/editorial) | | (Brazil), the Pitinga Mine (Brazil) and Marropinno (Mozambique). The Yichun mine (China) is another well-known... 1000 Australia Brazil Canada 800 Rwanda Mozambique 600 Other World Total 400 200 0 1994 1996...Tanco, Canada; Keticha, Ethiopia; and Marropino, Mozambique), rare-element-enriched peraluminous granites...Prairie Lake [Nuinsco Resources Ltd. 2014], Nkombway Hill [van Straaten 2002] and Sukulu [Karagambe-Kaliiza...g. Nechalacho [Ciuculescu et al. 2013] and Iron Hill [Staatz et al. 1979; van Gosen 2009]). Known major |  | | Journal (article/letter/editorial) | | pyrochlores are hosted by small prismatic crystals of apatite (~ 100 - 500 μm x 10 - 25 μm) that are commonly...μm) overgrowths. Apatite lacks fluid or solid inclusions of other minerals. The apatite is rich in Sr (7030...and Nd (La/NdCN ratios (0.73-1.14) relative to apatite in cumulate apatitites (La/NdCN > 1.5) in the adjacent...haplocarbonatite melts predicts the formation of apatite and pyrochlore as the initial liquidus phases in...texture of the clasts indicates that pyrochlore and apatite did not crystallize together and it is concluded |  | | Report (issue) | | production. No geologic definition of a deposit or district is used for compiling records for this report...Brazil, and the Niobec underground mine in Quebec Province, Canada. The Brazilian position is currently being...Limu mine in Guangxi Province and the Yichun niobium-tantalum mine in Jiangxi Province (Werner, 1988). Yichun...leaves an enriched concentration of magnetite, apatite, and bariopyrochlore (pandaite). Other rarer minerals...~~-~'-'~· ec·I' Q ~. .r :!~;>'. ~, - . . · Mnma Hill TAPanda H'll NZANIA •axa Geolog;c d • · / |
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