 | Broom-Fendley, Sam, Brady, Aoife E., Horstwood, Matthew S.A., Woolley, Alan R., Mtegha, James, Wall, Frances, Dawes, Will, Gunn, Gus (2017) Geology, geochemistry and geochronology of the Songwe Hill carbonatite, Malawi. Journal of African Earth Sciences, 134. 10-23 doi:10.1016/j.jafrearsci.2017.05.020 | Journal (article/letter/editorial) | | geochemistry and geochronology of the Songwe Hill carbonatite, Malawi Article in Journal of African Earth Sciences...are also working on these related projects: Carbonatite and alkaline volcanism in Italy and elsewhere...geochemistry and geochronology of the Songwe Hill carbonatite, Malawi Sam Broom-Fendley a, *, Aoife E. Brady...through three different carbonatite compositions (C1eC3). Early C1 carbonatite is scarce and is composed...composed of mediumecoarse-grained calcite carbonatite containing zircons with a UePb age of 132.9 Âą 6.7 Ma |  | Savelyeva, V. B., Bazarova, E. P., Sharygin, V. V., Karmanov, N. S., Kanakin, S. V. (2017) Altered rocks of the Onguren carbonatite complex in the Western Tansbaikal Region: Geochemistry and composition of accessory minerals. Geology of Ore Deposits, 59 (4) 315-340 doi:10.1134/s1075701517040055 | Journal (article/letter/editorial) | | Altered Rocks of the Onguren Carbonatite Complex in the Western Tansbaikal Region: Geochemistry and Composition...Onguren dykeâvein complex in the Western Transbaikal Region. The alteration processes in the Early Proterozoic...metamorphic complex and synmetamorphic granite hosting carbonatite are areal microclinization and riebeckitization;...near-contact zones of the dolomiteâankerite carbonatite veins; and silicification is displayed within...1134/S1075701517040055 INTRODUCTION The formation of carbonatite is usually accompanied by metasomatic alteration |  | | Journal (article/letter/editorial) | | Nb and REE Distribution in the Monte Verde CarbonatiteâAlkalineâAgpaitic Complex (Angola) Sandra Amores-Casals... Abstract: The Angolan alkalineâcarbonatite complex of Monte Verde has a semi-circular shape...arranged minor bodies of other alkaline rocks and carbonatite magmatic breccias. This rock association is hosted...are concentrated in pyrochlore crystals in the carbonatite and alkaline breccias. Magmatic fluornatropyrochlore...crystallize as late minor secondary minerals into carbonatite breccia and alkaline dykes. In conclusion, the |  | Gwalani, L. G., Rogers, K. A., DemĂŠny, A., Groves, D. I., Ramsay, R., Beard, A., Downes, P. J., Eves, A. (2010) The Yungul carbonatite dykes associated with the epithermal fluorite deposit at Speewah, Kimberley, Australia: carbon and oxygen isotope constraints on their origin. Mineralogy and Petrology, 98 (1) 123-141 doi:10.1007/s00710-009-0102-1 | Journal (article/letter/editorial) | | 1007/s00710-009-0102-1 ORIGINAL PAPER The Yungul carbonatite dykes associated with the epithermal fluorite...2009 Abstract The Yungul carbonatite dykes at Speewah in the Kimberley region of Western Australia were...Rogers : R. Ramsay : A. Eves Speewah Fluorite-Carbonatite Research Project, c/o NiPlats Australia Limited...boundary of the Halls Creek Orogen. The Yungul carbonatite dykes intrude a thick composite sill of the Palaeoproterozoic...associated granites. The carbonatite dykes consist of massive, calcite carbonatite that host very coarse |  | Shavers, Ethan J., Ghulam, Abduwasit, Encarnacion, John, Bridges, David L., Luetkemeyer, P. Benjamin (2016) Carbonatite associated with ultramafic diatremes in the Avon Volcanic District, Missouri, USA: Field, petrographic, and geochemical constraints. Lithos, 248. 506-516 doi:10.1016/j.lithos.2016.02.005 | Journal (article/letter/editorial) | | Carbonatite associated with ultramafic diatremes in the Avon Volcanic District, Missouri...Bridges, David L., Luetkemeyer, Patrick B., Carbonatite associated with ultramaďŹc diatremes in the Avon...to the journal pertain. ACCEPTED MANUSCRIPT Carbonatite associated with ultramafic diatremes in the Avon...presence of a primary magmatic carbonatite phase among ultramafic dikes, pipes, and diatremes of olivine...δ13CVPDB values gradational between primary carbonatite values and country rock values. Unaltered sedimentary |  | | Journal (article/letter/editorial) | | rapid crystal growth during slow cooling of the carbonatite melt at depth. The heat loss through the roof...fracturing of apatite and (iv) the emplacement of the carbonatite melt as dykes. Here, the conditions were favourable...reveal the crystallization processes within carbonatite melts. Introduction Crystallization in multi-component...textural and chemical variations throughout the carbonatite crystallization sequence (e.g. Ionov and Harmer...have explored the textural characteristics of carbonatite minerals and have used that information 58 |  | | Report (issue) | | in the Bokan Mountain district of Alaska, carbonatite dikes, and apatite-bearing iron deposits in the........................................ . Carbonatite Dikes ................................ . 22 9...probable potential resources, in short tons, of carbonatite dikes in three districts . . . . . . . . . III...percent Th0 2 and 0 15 percent UaOs. Some carbonatite dikes, although generally not as high grade as the...veins, contain resources of thorium. Car't~natite dikes in the following six districts were investigated: |  | Stoppa, Francesco, Schiazza, Mariangela, Rosatelli, Gianluigi, Castorina, Francesca, Sharygin, Victor V., Ambrosio, Francesco Antonio, Vicentini, Noemi (2019) Italian carbonatite system: From mantle to ore-deposit. Ore Geology Reviews, 114. 103041 doi:10.1016/j.oregeorev.2019.103041 | Journal (article/letter/editorial) | | Journal Pre-Proof Italian Carbonatite System: from Mantle to Ore-deposit Francesco Stoppa, Mariangela... F. Antonio Ambrosio, N. Vicentini, Italian Carbonatite System: from Mantle to Ore-deposit, Ore Geology...by Elsevier B.V. JOURNAL PRE-PROOF Italian Carbonatite System: from Mantle to Oredeposit Francesco Stoppa1*...Pianciano, Ficoreto and Forcinelle in the Roman Region demonstrates that Italian carbonatites are not...to produce immiscible melilite leucitite and carbonatite E- melts, at lithospheric mantle depths. At |  | Casillas, RamĂłn, DemĂŠny, Attila, Nagy, GĂŠza, Ahijado, Agustina, FernĂĄndez, Carlos (2011) Metacarbonatites in the Basal Complex of Fuerteventura (Canary Islands) The role of fluid/rock interactions during contact metamorphism and anatexis. Lithos, 125 (1) 503-520 doi:10.1016/j.lithos.2011.03.007 | Journal (article/letter/editorial) | | melteigites, ijolites, alkaline gabbros, syenites and carbonatite dykes cut by a basaltic dyke swarm. A later basaltic...in the contact-metamorphosed silicate rocks. Carbonatite dykes have been found in the metamorphic aureole...metasomatism and caused Sr, Ba and S enrichment in the carbonatite. As a result, alkali elements such as K, Na,...criteria should be used to recognise metacarbonatite outcrops in terrains that have undergone severe metamorphism...and HĂśy (1989) described some metacarbonatite outcrops included in terrains that have undergone greenschist |  | Campeny, Marc, Kamenetsky, Vadim S., Melgarejo, Joan C., Mangas, JosĂŠ, Manuel, JosĂŠ, Alfonso, Pura, Kamenetsky, Maya B., Bambi, Aurora C.J.M., Gonçalves, Antonio O. (2015) Carbonatitic lavas in Catanda (Kwanza Sul, Angola): Mineralogical and geochemical constraints on the parental melt. Lithos, 232. 1-11 doi:10.1016/j.lithos.2015.06.016 | Journal (article/letter/editorial) | | Angola. AC CE P Four outcrops of carbonatite lavas have been identified in this region and considering the...interpret these lava types as having been a single carbonatite suite related to the same parental magma. We... Introduction There are more than 500 known carbonatite localities worldwide (Woolley and PT Kjarsgaard...from explosive volcanism, while effusive NU carbonatite lavas have only been described in 14 localities...localities by Woolley and Church, MA 2005. Carbonatite magmas most probably represent low-degree partial |  | | Report (issue) | | Rocks Petrography .. Other Silicate Rocks The Carbonatite Petrography .. Breccia Veins 29 30 31 31 31...Rock Types Fenitised Granite Mixed Rocks The Carbonatite Petrography .. Tinguaite Veins Breccia Veins...of Undersaturated Rocks Petrography .. The Carbonatite Petrography .. 46 47 47 47 SEKULULU Rock...Tororo has been plotted on maps of a larger scale. Outcrops are usually poor in the areas away from the Elgon...Elgon cliff and information has been gained in this region by numerous pits and drill-holes. The writer here |  | | Journal (issue) | | Rasmussen Zircon crystals from the Mud Tank Carbonatite, Northern Territory, Australia ................High in the mountain ranges of the Shigar Valley region of Pakistan, hundreds of mine tunnels pierce steep...Afghani and Pakistani minerals. He traveled to that region for minerals in the early 1970s (around the time...Sainte-Marie-auxMines Show in the amazing Alsace region of France. Marco is a bit of a genius: he is one...aquamarine, especially specimens from the Shigar region of Pakistan. During the 2010 Tucson Show, we were |  | | Journal (article/letter/editorial) | | Cr-rich magnetite and graphite coexist with carbonatite minerals and precipitated from carbonate magma...PTconditions. Mineral geothermometers for the Newania carbonatite give temperatures from 463 to 950°C. The parental...ripp@gin.bscnet.ru Introduction The Newania carbonatite complex is situated 40 km east of Udaipur, within...Mineralization is also associated with the Newania carbonatite in the form of disseminated, uraniferous pyrochlore...described the geology and petrography of the carbonatite outcrops, and Viladkar and Wimmenauer (1986) and |  | Weerakoon, M.W.K., Miyazaki, T., Shuto, K., Kagami, H. (2001) Rb-Sr and Sm-Nd Geochronology of the Eppawala Metamorphic Rocks and Carbonatite, Wanni Complex, Sri Lanka. Gondwana Research, 4 (3) 409-420 doi:10.1016/s1342-937x(05)70340-3 | Journal (article/letter/editorial) | | Geochronology of the Eppawala Metamorphic Rocks and Carbonatite, Wanni Complex, Sri Lanka M.W.K. Weerakoonl,...surrounding metamorphic rocks of the Eppawala carbonatite body, Wanni complex, Sri Lanka, revealed that...fractions suggests 493k5 Ma for the Eppawala carbonatite body. This age indicates the cooling age of the...the biotite. The presence of non-crystalline carbonatite matrix and large hexagonal apatite crystals suggests...Rb-Sr system suggests that the intrusion age of carbonatite body should be more than 493 Ma, but non-metamorphosed |  | | Journal (article/letter/editorial) | | that fenitization precededone or more ofthe carbonatite intrusive phases. The mica chemistry indicates...reaction rim. INrnolucrroN Four of six small carbonatite breccia pipes and sills in the vicinity of Oppelo...Steeleand Wagner(1979)publishedseveralanalysesof the carbonatite matrix of the various intrusions but not of the...phlogopite xenocrysts may represent a more evolved carbonatite phase. The present mineralogical study has been...successive phases of carbonatite emplacement. Gnor,ocrc sETTING The carbonatite bodies in this study |  | | Journal (article/letter/editorial) | | Myanmar. This paper takes an overview of the carbonatite occurrences in the Indian Subcontinent in the...440001, India; Geological Survey of India, Central Region, Seminary Hills, Nagpur (MH) â 440006, India Open...Gruyter. Attribution 4.0 License Keywords: Carbonatite, Sevathur, Newania, Sung Valley, Amba Dongar...Plain, Khanneshin, Eppawala 1 Introduction Carbonatite melts are known to form by very low degrees of...as a veined and metasomatically enriched source region [3]. The carbonatitic magma so generated represent |  | | Corporate Document | | .............. 30 7.2 Geology of the Songwe Carbonatite Vent ............................................................................ 32 7.2.1 Carbonatite ....................................................................... 33 7.2.1.1 Calcite carbonatite........................................................................ 33 7.2.1.2 Fe-rich carbonatite ...............................................Report â 22 November 2012 Page: i 7.3 7.2.3.2 Carbonatite-rich breccia ............................... |  | | Journal (volume) | | of Szeged On the cover: Map of the Carpathian region with type localities of new mineral species, rocks...History of mineralogy: The role of the Carpathian region in the 18th century..............................investigation of redox processes. For Fe, the pre-edge region provides an almost direct way of quantifying the...phase 4C pyrrhotite intergrown with pyrite due to the scarcity of pyrite in these samples. Average solid...Munella region (Albania) in improving the fertility features of a sandy soil from Divjaka region (Albania) |  | | Journal (article/letter/editorial) | | predominantly foyaitic nepheline syenites and carbonatite intruding gneisses and metasediments near Ivigtut...The nepheline syenites have been intruded by carbonatite which was forcibly emplaced with brecciation...metasomatic alteration of its surroundings. The carbonatite is calcite-rich (Sovite) with variable quantities...syenites were cut by a central plug of xenolithic carbonatite, zoned from calcite-rich margins to a core containing...investigations of the igneous rocks of the Ivigtut region to include those of the Grønnedal-Ika area. C. |  | | Book (volume) | | APACHECOUNTY, ARIZONA M. F. Roden and D. Smith 2â˘E OKA CARBONATITE COâ˘PLEX: Râ˘GNETI2⢠COFâ˘OSITIONS AND 'iHE RELATED...1000øC and would suggest that in this temperature region the geotherms for areas of different surface heat...identified in diamonds (Chrenko et al., 1967). region A cloud-like in a diamond from Arkansas appeared...quadrilaterial (Fig. 4) this inclusion plots close to the region of omphacitic pyroxene, but is distinct from them...available but at present serve to indicate the general region in which crystallization may have occurred. type |  | | Report (issue) | | variation, GIPV, as currently computed for a given region, means something different for, say, simulated...addition to classifying the known deposits of a region and aiding in delineation of geologic domains,...deposit being considered, 2) the geology of the region being assessed, and 3) the nature of probability...on employment, income, and tax revenues within a region vis-a-vis alternative policies on those lands favoring...Wanted Used (3) j for what commodities what area/region what form of the results/data B. Choices - how |
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