 | | 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...sources both in the EARS and elsewhere (Dawson and Hill, 1998; Klaudius and Keller, 2006; Dawson, 2012;...evolved alkaline (phonolite/nephelinite) silicate melts (Dawson and Hill, 1998; Klaudius and Keller, |  | | Journal (article/letter/editorial) | | with magmatic differentiation ofacarbonated-nephelinite magma. A model is proposed in which differentiation...binary mixing of lower-crustal granulites and a nephelinite magma, or incremental batch melting of a depleted...plugs and dykes of alnoite, camptonite, ijolite, nephelinite, nepheline syenite, and trachyte (Garson & Smith...Blenkinsop, 1987,1989). The abundant carbonatite-nephelinite centres in the East African Rift Valley System...complexes are located in southern Malawi and adjacent Mozambique, at the junction of the north-south-trending |  | | Journal (article/letter/editorial) | | magmas are principally those of the melilitite, nephelinite and aillikite clans. Although many primary niobium...re-evaluated [e.g. Oka (Canada); Fen (Norway); Panda Hill (Tanzania)] for their economic potential. Although...Currently, the petrogenesis of cratonic rift-related nephelinite–melilitite magmas is considered to be a complex...carbonatite, each related to a specific magma type: (1) nephelinite-clan carbonatites; (2) melilitite-clan carbonatites;...aillikite–carbonatite association; (5) a peralkaline nephelinite natrocarbonatite association; (6) carbonatites |  | | Journal (article/letter/editorial) | | 1962, Ore genesis of the Cave In Rock Fluorspar District, Hardin County Illinois: ECON. GEOL.,v. 57, p...Barite zoining in the Illinois-Kentucky Fluorspar District: ECON. GEOL., v. p. 299-302. 3. •, 1964, A possible...Cave-in-Rock Fluorite District, Illinois, and Upper Mississippi Valley Zinc-lead District: Ecom GEOL., v. 58...Structural framework of the Illinois-Kentucky Mining District and its relation to Mineral Deposits: U.S.G.S...Paragenesis and Zoning in the Central Kentucky Mineral District: EcoN. GEox•., v. 59, p. 596-625. 9. McGinnis |  | | Journal (article/letter/editorial) | | the beforsitic (dolomite bearing) dikes at Sengeri Hill (Mbeya carbonatite, southwestern Tanzania, East...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...VINOORA~OV et al. (1970): 15. Ksrimeei (4); 16. Mrima Hill (1); 17. Kwsrao (1); 18. Oldoinyo Dili (1); SUWA |  | | Report (issue) | | associated fenite at 11 localities in the Chilwa Province of Malawi. Remarkably, in that paper it was also...limestone at Kalkfeld, Okorusu, Phalaborwa, Lokupoi Hill (Napak), Toror, and Tororo were also carbonatite...associated with the Bishoftu craters in the Debre Zeyt District of Ethiopia are now considered to be hot spring...associations, i.e., melilitite (melilitolite), nephelinite (ijolite), basanite (alkali gabbro), phonolite...name Alternative name Continent Country State/Province/Territory Latitude Longitude Carbonatite type |  | 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) | | and Kapuskasing Structural Zones of the Superior Province, Canada (e.g. Sage 1991). Most carbonatite complexes... 2004; Anbar et al. 2005; Polyakov et al. 2007; Hill and Schauble 2008; Shahar et al. 2008). Although...sovite. Silicate rocks: trachyte, phonolite, nephelinite melteigite, ijolite, pyroxenite, hornblendite...ferrocarbonatite. Silicate rocks: ijolite, phonolite, nephelinite. Oldoinyo Lengai, Tanzania Still active Natrocarbonatite...pyroxenite, ijolite series rocks, nepheline syenite. Panda Hill, Tanzania 113±6 Mainly sövite but areas of ferrocarbonaite |  | | Journal (article/letter/editorial) | | Island, S.Malawi Kangankunde, S. Malawi Nathace Hill, Tundulu, S. Malawi Deerdepoort, Pretoria Central...(Ma) Oldoinyo Lengai, Tanzania Museum Zone, Panda Hill, Tanzania Bukusu, Uganda The whole rock trace...the highest and lowest total REE contents (Nathace Hill, Oldoinyo Lengai) have the most fractionated REE...Bell and Simonetti, 1996). The data from the Panda Hill sample falls within the mantle array in the 207Pb/204Pb...143Nd/144Nd ratios than the C. The NC fraction from the Panda Hill and Deerdepoort samples have more radiogenic |  | | Journal (article/letter/editorial) | | occurs in platy crystals in kalsilite-melilite-nephelinite lava, Mt. Shaheru, Belgian Congo (see gotzenite...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...5 9 1 ( 7 0 ) . The name is for the locality, Panda Hill, and is suggested for minerals of the pyrochlore...banded metamorphosed Devonian limestone in Hunan Province. The limestone was intruded by granite. In the |  | 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) | | melilitite to evolved combeite–wollastonite nephelinite, demonstrating their incompatible behavior during...condensates (Nielsen and Veksler, 2002), mixing of nephelinite and natrocarbonatite magma batches (Dawson et...natrocarbonatites from a carbonated peralkaline nephelinite melt at low pressure and temperature (Bell and...)- and wollastonite (Ca 3 Si 3 O 9 )-bearing nephelinite (CWN) tuffs and lavas (Lengai II stage) that...ENGW1 rock samples Fort Portal water samples Panda Hill escarpment OL 804 fresh and altered natrocarbonatites |  | | Book (edition) | | Jr., completed most of the field work on the Iron Hill complex of Gunnison County, Colorado, in 1912-1913...accepted the idea of an igneous origin for the Iron Hill carbonatite. In 1924 Bowen, who had visited the...Cove, Arkansas (Erickson and Blade, 1963), Iron Hill, Colorado (Olson and Wallace, 1956), Mountain Pass...wall-rock alterations brand the area as an alkalic province. The types of carbonatite occurrences may be grouped...and the core carbonatite is eccentric, as at Iron Hill, Colorado, or Songwe, Nyasaland. It is not to be |  | | Journal (article/letter/editorial) | | asthenospheric source. The Palaeozoic K o l a alkaline province is situated between north-eastern Finland and...1947), Dorowa and Shawa, Zimbabwe (Johnson 1966), Panda Hill (Basu and Mayila 1986) and Ngualla, Tanzania...(1993) in his study of alkaline massifs of the Kola province. The U-Pb data from baddeleyite fiom tetrafer...the carbonatite complexes from the Kola alkaline province involve mixing of two mantle reservoirs. The fact...Petrographic and chemical characteristics of the Panda Hill carbonatite complex, Tanzania. J Afr Earth Sci |  | | Journal (article/letter/editorial) | | Sr isotopic data from the Napak carbonatite-nephelinite centre, eastern Uganda: an example of open-system...and Sr isotopic data from nephelinite lavas from the Tertiary nephelinite-carbonatite complex of Napak...wide compositional range (melilite nephelinite, olivine nephelinite, melanephelinite, phonolite), and...Napak is unique among the many eastern Ugandan nephelinite-carbonatite centres, because both extrusive and...some of the Tertiary and Recent carbonatite-nephelinite centres: 1, Kalyango; 2, Rusekere; 3, Toror; |  | | Journal (article/letter/editorial) | | normally associated with numerous carbonatite-nephelinite centres, that are ideal for monitoring the isotopic...flood basalts. Udaipur carbonatite-alkalic ' 'province' ', which covers an area of ~ 1200 km: (Viladkar...Udas, 1963), forms part of the Chhotta Udaipur "province". K-Ar dates from Amba Dongar include a value...value of 37.5 + 2.5 Ma from a pyroxene from a nephelinite (Deans and Powell, 1968), and 61 + 2 and 76 + 2...Fault Breccia Basalt & doledte dykes Breccia Nephelinite & D Phonollte 17171Limestone K-rich Fenite |  | | Journal (article/letter/editorial) | | mafic dikes and basaltic lavas from the Gardar Province, South Greenland (Halama et al., 2003, 2004, 2005)...4.7 5.6 / 5.7 4.8 1.5 2.1 3.6 4.2 6.2 Gardar Province, Greenland GR 46 Grønnedal-Ika GR 70 Grønnedal-Ika...tephrite WR WR 17 17 Ngualla Chilwa Panda Hill Panda Hill Panda Hill Sukulu Toror Homa Bay Oldoinyo Lengai...Eledoi Sinja Eledoi Dorobo cone Dorobo cone Armykon Hill Kaiserstuhl, Germany K1 Föhrenberg/Ihringen K1...Limberg K5 Badloch Olivine tephrite Olivine nephelinite Limburgite Limburgite Clinopyroxene megacryst |  | | Journal (article/letter/editorial) | | carbonatites are: (1) British Columbia Alkaline Province, Canada (Pell 1994, Millonig et al. 2012); (2)...example the Ontario and Southwest Quebec carbonatite province covered by Woolley and Bailey (2012). Although...0 25.4 0.7 0.3 8.8 10.3 2.1 42.6 0.2 2.5 Panda Hill 9.8 1.9 19.3 7.9 Naantali 3.5 0.2 4.3 3.4 Fen...alkaline-carbonatite complex. For example, at Panda Hill, Naantali, Callander Bay, Kangankkunde, and Ipanema...largely on field observations from Chilva alkaline province in southern Malawi, fits many complexes from Eastern |  | | 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...lava Tuff, agglomerate, carbonatite, phonolite, nephelinite, trachyte, etc. Shear dike (ring di of sovite...~~-~'-'~· ec·I' Q ~. .r :!~;>'. ~, - . . · Mnma Hill TAPanda H'll NZANIA •axa Geolog;c d • · / |  | | 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 |  | | Journal (article/letter/editorial) | | associated silica undersaturated magmatic rocks (e.g. nephelinite, ijonite) occur along deep fault zones in the...Phalaborwa and Goudini, South Africa; Tundulu Hill, Malawi; Panda Hill and Kerimasi, Tanzania; Tororo, Uganda...and Goudini in South Africa, Tundulu Hill in Malawi, Panda Hill and Kerimasi in Tanzania, and Tororo...263 – 274. Le Bas, M.J., 1977. Carbonatite – Nephelinite Volcanism. Wiley, London. Le Bas, M.J., 1981...geochemistry of the Mundwara carbonatite dykes, Sirohi District Rajasthan, India. N. J. Mineral. Abh. 160, 207 |  | Cheng, Zhiguo, Zhang, Zhaochong, Hou, Tong, Santosh, M., Chen, Lili, Ke, Shan, Xu, Lijuan (2017) Decoupling of Mg–C and Sr–Nd–O isotopes traces the role of recycled carbon in magnesiocarbonatites from the Tarim Large Igneous Province. Geochimica et Cosmochimica Acta, 202. 159-178 doi:10.1016/j.gca.2016.12.036 | Journal (article/letter/editorial) | | magnesiocarbonatites from the Tarim Large Igneous Province Zhiguo Cheng, Zhaochong Zhang, Tong Hou, M. Santosh...magnesiocarbonatites from the Tarim Large Igneous Province, Geochimica et Cosmochimica Acta (2016), doi:...magnesiocarbonatites from the Tarim Large Igneous Province Zhiguo Chenga, Zhaochong Zhang a,*, Tong Hou b...86-10-82322195. Abstract: The Tarim Large Igneous Province in NW China hosts numerous magmatic carbonatite...Magnesiocarbonatite; Mg isotopes; Tarim Large Igneous Province; Plume-plate tectonics interaction 1. Introduction |  | | Journal (article/letter/editorial) | | Divergence (NTD) and Mt. Kenya, Rungwe Volcanic Province, and the Southern Kenya Rift. The Stratoid Phase...intermediate shield phase in the Rungwe Volcanic Province. The Axial Phase (0.5 Ma to present) is defined...with ro proximity to the craton (basalt -> nephelinite/ melilitite -> alkali picrite -> kimberlite)...rising from the African Low Large Shear Velocity Province (LLSVP) (Mulibo and Nyblade, 2013). A deep mantle...rift architecture – e.g., in the Rungwe Volcanic Province, rifting during the Mesozoic has impacted modern |  | | Report (chapter) | | at Lemagrut also started with extrusions of nephelinite and subsequently produced abundant alkali basalt...The oldest dated rock within the province is an 8.1 Ma nephelinite from Essimingor (Appendix 1, Dawson...Essimingor, Shombole, Mosonik and Sadiman are nephelinite – phonolite pyroclastic stratovolcanoes, thus...allowed a more specific name to be given e.g. nephelinite, melilitite. In the case of olivine- and augite-...perovskite nephelinite, succeeded by titanite nephelinite and later phonolitic nephelinite. Kjaarsgaard |  | | 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...occurrence, discharge and replenishment fall within the province of the geologist. But practically all ground waters...dangerous landslides or mudflows. It is within the province of the geologist to advise the engineer in all...solution appeared to be the removal of Cox's Fort Hill, overlool |  | | Book | | 1905, 120–123 von Eckermann H (1948) The alkaline district of Alnö Island. Sver Geol Unders Ca 36:176 Weidendorfer...questions, focusing especially on the so-called vitrified hill forts in Sweden and other parts of Europe. Since...in research on Alnö and the mysteries of vitrified hill forts. xvii xviii About the Authors Prof. Valentin...the Canary Islands, the North Atlantic Igneous Province and the Sunda Arc with a focus on magmatic crystals...samples compared to typical carbonatite and nephelinite compositions and to the highly economic Bear |
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