 | | Journal (article/letter/editorial) | | There are a few small phenocrysts of aegirine-augite and occasional patches of partly resorbed brown...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...microphenocrysts of nepheline, and a few of aegirine, aegirine-augite, or soda-amphiboles. Some of them carry rather |  | | Journal (article/letter/editorial) | | 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...dissected by deepgullies. The sidesof the valleysand hill-slopesmay be as steepas 30 degrees. -. : - :.... ':' •..• •.. . • • Fro. 1. •.'J. Panda Hill and the Mbeya carbonatitedepositin the background...dikes. 4 Aln6ite•a dike rock composedof olivine, augite, hornblende,biotite and melilite. It is akin to |  | | 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) | | 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...titanite and the minerals fluorapatite, nepheline, augite, cancrinite, calcite, pyrrhotite and phonolite...sources both in the EARS and elsewhere (Dawson and Hill, 1998; Klaudius and Keller, 2006; Dawson, 2012; |  | | 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...the development of Na- and Kamphiboles, aegirine-augite, K-feldspar, albite, perthite, mesoperthite, antiperthite...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...3+ ±Ca ±Al Na K Na and K amphibole Aegirine-augite K-feldspar Mesoperthite Antiperthite Albite Pale |  | | Journal (volume) | | 19 Zircon 19 Petrogenesis References ii Ilomba Hill from the Songwe Plain to the north-west 3 Photomicrograph...15 5 Radiometric map of the summit area, Ilomba Hill 16 TABLES 1 2 3 4 5 6 7 Geological history of...The complex, part of the North Nyasa Alkaline Province, is U-shaped in plan and some 2 km across and...magmatic activity in the North Nyasa Alkaline Province over a period of more than 700Ma·negates the theory...out intermittently over the past 23 years. Ilomba Hill is noteworthy for its uranium-rich pyrochlore, and |  | | 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...rock around alkalic complexes; up to 25% aegirine-augite, minimum of 52% StOz: Mafic-metasomatites of altered...around alkalic complexes; more than 25% aegirine-augite. Ringite Table 1-2. Nomenclature for Hybrid |  | 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...pyroxenite, ijolite series rocks, nepheline syenite. Panda Hill, Tanzania 113±6 Mainly sövite but areas of ferrocarbonaite...dikes of dolomite carbonatite. Sengeri Hill, Tanzania Same as Panda? Dolomitic dikes. Dicker Willem, Namibia...Homa Bay (Kenya), Oldoinyo Lengai (Tanzania), Panda Hill (Tanzania), and Borden (Canada) from Halama et |  | | 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) | | presented for the orientation and identifie&tion of augite, pigeonite, and orthop~-oxene in poly-phase crystals... 3. The formation of supergene galena at Broken Hill, Northern Rhodesia: by Prof. J. H. Taylor (vol....Kennedy (vol. 31, p. 846). 4. Minium from Broken Hill, New South Wales: by Dr. Brian J. Skinner and Miss...are closely similar to those described from Scawt Hill, but at one point on the excavated conduit wall...barium-strontium pyrochlore in a biotite rock from Panda Hill, Tanganyika : b y Dr. E. J~ger, Prof. E. l~iggli |  | Graupner, Torsten, Klemd, Reiner, Henjes-Kunst, Friedhelm, Goldmann, Simon, Behnsen, Helge, Gerdes, Axel, Dohrmann, Reiner, Barton, Jay M., Opperman, Rehan (2018) Formation conditions and REY enrichment of the 2060 Ma phosphorus mineralization at Schiel (South Africa): geochemical and geochronological constraints. Mineralium Deposita, 53 (8) 1117-1142 doi:10.1007/s00126-018-0791-7 | Journal (article/letter/editorial) | | sampling in the Schiel Alkaline Complex Limpopo Province, Republic of South Africa 30.425 E b 30.450...replaced by minor secondary amphibole. Aegirine augite also occurs in a few samples. The modal abundance...associated LREEWDS values (Fig. 12). For the Panda Hill carbonatite complex, a similar observation was...fluorapatite in phoscorites from the Kola Alkaline Province (Kovdor, Seblyavr) as stated by Krasnova et al...Petrographic and chemical characteristics of the Panda Hill carbonatite complex, Tanzania. J Afr Earth Sci |  | | 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...intergrowth of calcite and lamellar pyroxene (aegirine augite), with some mica, titanomagnetite and apatite |  | | Journal (issue) | | Mfwanganu looking up the dip-slope Miocene from Kiwari Hill . . ,, of the . . . Sketch map of Mfwanganu Island...1aL>orator)', 1110n a zi tc from Kangar1ku 11de Hill. is separated from slrontianile b)· 111ean' of tl1e...disseminated fine magnetite, and very subordinate fine augite. The plagioclase occurred as a mass of fine laths...laths averaging about 0·2-0·4 mm., the augite as equidimensio,nal particles of about 0·05-0· 1 mm. diameter...p. 272) and are basalts containing titaniferous augite but devoid of olivine. The bulk of the rocks are |  | | 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 |  | | Journal (issue) | | near the coast at Lumley, south-eastwards to Picket Hill, and then swings rather sharply southwestwards to...backbone of the Banana Islands. Alignment of the hill crests in the northern half of this range is shown...extends southwards from Mt. Horton, through Jagba Hill, to the vicinity of Mamah Town on the south coast...to in the text. TEXT-FIG. flowing from Good Luck Hill to join No. 2 River (E, Text-fig. 2),, on the dip-slope...geology in the forest area southwards from Picket Hill to the Kent peninsula. It is probable, however, |  | | Book | | Africa's Gem Fields 3 The Tanzanian Shield 6 The Mozambique Belt 8 The Capping Volcanics 10 Conclusion 11...Longido, Northern Province, Tanzania 28 Ruby and Sapphire from Umba, Tanga Province, Tanzania 32 Sapphire...Garnets of East Africa 73 Rh.odolite of the Lindi District, Tanzania 76 Tsavorite Garnets 76 The Pyrope-...Narok District, Kenya 99 Uvite-Dravite Chrome Tourmaline 99 Chapter 8. Prase Opal from Haneti Hill, Tanzania...Geologic map of the Umba River drainage, Tanga Province, Tanzania. 34 Figure 3. 7. Geologic map of serpentinite |  | | Journal (issue) | | • • Occurrence of Helium-bearing Gases in Lake Province, Tanganyika Platinum Metals Review . . . Sedimentological...Map of Lower Shire Valley • • ,, fig. 1 Namalambo Hill, Lower Shire Plate I • • ,, fig. 2 Alluvium at Chikwawa...ofpedisediment deposits-or masses of debris carried down hill by gravitation, rain wash and stream action in the...reappears near the Dandi, just north of Namalambo Hill (Plate I, fig. 1), and passes to the west of that...south of the Tangadzi West, beginning with Namalambo Hill opposite Chiromo (seeaccompanying map). From the |  | | Report (chapter) | | basaltic magmatism. The oldest dated rock within the province is an 8.1 Ma nephelinite from Essimingor (Appendix...nephelinite, melilitite. In the case of olivine- and augite- phyric feldspathoidal lavas, especially from the...olivine þ minor Ti-augite 50% olivine þ 50% Ti-augite , 10% olivine, mainly Ti-augite the author’s fieldwork...volcano now lies beneath Lake Natron, though a small hill of basalt, poking up through recent sediments on...of flows of olivine basalt, with phenocrysts of augite, olivine and labradorite, and subordinate trachybasalt |  | | Journal (volume) | | Guiana Occurrence of Helium- bearing Gases in Lake Province, Tanganyika 85 85 86 87 88 89 90 91 91 210 211...Photomicrographs of San Jorge Rocks 1. Hornblende -augite-plagioclase -schist, Salavo . 2. Albite - epidote...Malaita Rocks 1. Medium - grained dolerite showing augite clusters and sub -ophitic fabric, Fiu Lavas . 2...of Lower Shire Valley facing p. fig . 1 Namalambo Hill , Lower Shire Plate I fig. 2 Alluvium at Chikwawa...valley shall be exalted, and every mountain and hill shall be made low " . But at last, by the nineteenth |  | | Journal (issue) | | valley shall be exalted, and every mountain and hill shall be made low''. But at last, by the nineteenth...photographs indicated that southern Nyasaland for1ned a province of ring structures, intrusions, and dyke swarms...comparable in many ways with the Tertiary igneous province in the west of Scotland, although of different...occurs as a marginal alteration product of aegirine-augite or o.f aegirine. It also occurs independently,...described by Br0gger in fenitised rocks from the Fen district in Norway (1912, p. 165). In one of these he records |  | | Journal (article/letter/editorial) | | phoscorite occurrences, including the Maimecha–Kotuy Province in Siberia (3), In’Ouzzal in Algeria (4), Loch...Petrographic and chemical characteristics of the Panda Hill carbonatite complex, Tanzania. J. Afr. Earth...AYLOR , L.A. (1980): Crystal/liquid partitioning in augite: effects of cooling rate. Earth Planet. Sci. Lett...of metamorphosed carbonatites in the Grenville Province, Ontario. Can. J. Earth Sci. 34, 1185-1201. MOORE...Amba Dongar and adjacent areas, Deccan Alkaline Province, Gujarat, India. 2. Complexly zoned clinopyroxene |  | | Journal (article/letter/editorial) | | Anderson, G. F. Claringbull, R. J. Davis, and D. K. Hill, 1961. Nature, vol. 190, p. 997. (Th,U)(Ca,Fe,Pb)~SisO20;...tetragonal phase. From Eheliyagoda, Raknapura district, Ceylon. Named after the discoverer, Mr. F. L...p. 654. A variety of muscovite from the Iimori district, Japan, near K~(Mg,Fe)Fc'"A13SiTO20(OH)4. Ferri-phlogopite...(English summary). A brown mica from Teshirogi district, Fukushima prefecture, having 15% F%03 and very...alteration of blanfordite, from Ponia, Balaghat District, Madhya Pradesh, India. Near magnesio-arfvedsonite |  | | Book | | individual chapters: i) the carbonatitic-alkaline province outcropping on the Kenya-Uganda border which have...Petrogenesis of the volcanic rocks of the Karoo Province edited by ERLANK (1984). In addition, a review...review paper related to this volcanic province appeared in the book devoted to the Flood Basalts Provinces...138 139 142 146 146 5 The Mesozoic Tholeiitic Province of Northwest Africa: A Volcanotectonic Record................ 12 The Chilwa Alkaline Igneous Province of Malawi: A Review A. R. Wooley ............ |  | | Report (issue) | | MAURITIUS MEXICO MONACO MONGOLIA MONTENEGRO MOROCCO MOZAMBIQUE MYANMAR NAMIBIA NEPAL NETHERLANDS NEW ZEALAND.................................... 54 6.5.14. Mozambique ...............................................quartzundersaturated intrusions, starting with augite-syenite followed by peralkaline agpaitic nepheline...latter is present in the Roman Comagmatic U-Th-Ta district. Rhyolitic volcanics are assumed to be the source...occurrences in Norway is presented in Fig. 5. In the Fen district of Telemark a carbonatite body was discovered |  | Mikhailova, Julia, Ivanyuk, Gregory, Kalashnikov, Andrey, Pakhomovsky, Yakov, Bazai, Ayya, Panikorovskii, Taras, Yakovenchuk, Victor, Konopleva, Nataly, Goryainov, Pavel (2018) Three-D Mineralogical Mapping of the Kovdor Phoscorite–Carbonatite Complex, NW Russia: I. Forsterite. Minerals, 8 (6) 260 doi:10.3390/min8060260 | Journal (article/letter/editorial) | | (Araxá, Catalăo, Fen, Lueshe, Mt. Weld, Oka, Panda Hill, St. Honoré, Tomtor, etc.), Cu (Palabora), Fe...to Mine: The Key Example of the Kola Alkaline Province; Mineralogical Society: London, UK, 2004. Ivanyuk...to Mine: The Key Example of the Kola Alkaline Province; Zaitsev, A.N., Wall, F., Eds.; Mineralogical...exsolution textures in Fe-Mg olivine: An example from augite syenites of the Ilimaussaq Intrusion, South Greenland |
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