 | 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 dyke–vein 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 dolomite–ankerite carbonatite veins; and silicification is displayed within...1134/S1075701517040055 INTRODUCTION The formation of carbonatite is usually accompanied by metasomatic alteration |  | Gwalani, L. G., Rogers, K. A., Demény, 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 |  | Mongelli, Giovanni, Paternoster, Michele, Rizzo, Giovanna, Sansone, Maria T. Cristi, Sinisi, Rosa (2013) Trace element geochemistry of the Mt Vulture carbonatites, southern Italy. International Geology Review, 55 (12) 1541-1552 doi:10.1080/00206814.2013.786310 | Journal (article/letter/editorial) | | 2013) The Mt Vulture carbonatites are the only carbonatite occurrence in the southern Apennines. We present... The origins of carbonatite magmas are debated, and models proposed for carbonatite generation include... Lee and Wyllie 1994; Veksler et al. 1998). Carbonatite ages range from Archaean to recent and these...we present new chemical data for a suite of carbonatite rocks from the Mt Vulture area and use these...these data to discuss the relationships between carbonatite occurrence and REE distribution. In particular |  | Casillas, Ramón, Demény, Attila, Nagy, Géza, Ahijado, Agustina, Fernández, 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 Höy (1989) described some metacarbonatite outcrops included in terrains that have undergone greenschist |  | 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 |  | Toscani, Lorenzo, Salvioli-Mariani, Emma, Mattioli, Michele, Tellini, Claudio, Boschetti, Tiziano, Iacumin, Paola, Selmo, Enricomaria (2020) The pyroclastic breccia of the Cabezo Negro de Tallante (SE Spain): The first finding of carbonatite volcanism in the Internal Domain of the Betic Cordillera. Lithos, 354. 105288 doi:10.1016/j.lithos.2019.105288 | Journal (article/letter/editorial) | | Negro de Tallante (SE Spain): The first finding of carbonatite volcanism in the Internal Domain of the Betic...evidence for the presence of a primary magmatic carbonatite component. The matrix of the pyroclastic breccia...Ba, Nb, P and LREE if compared with typical carbonatite magmas. REE profiles of the carbonate portion...Elsevier B.V. All rights reserved. Keywords: Carbonatite Dolomite melting Liquid immiscibility Cabezo... Intrusive types are dominant, while volcanic outcrops represent only 10% of the known occurrences worldwide |  | | Journal (article/letter/editorial) | | Nb and REE Distribution in the Monte Verde Carbonatite–Alkaline–Agpaitic Complex (Angola) Sandra Amores-Casals... Abstract: The Angolan alkaline–carbonatite 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 |  | | 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...sheets and dykes of dolerite containing numerous plagioclase phenocrysts, often several centimetres in length...syenites were cut by a central plug of xenolithic carbonatite, zoned from calcite-rich margins to a core containing |  | | 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 (article/letter/editorial) | | of what is known about Italian PT alkaline-carbonatite complexes, plus a new description of a carbothermal...potential for mineral deposits. The Italian carbonatite occurrences can be divided into two CE belts...60 km long and 20 km wide in the Northern Latium region in which are carbothermal residua carbonatites...magmatism, critical metals, carbothermal residua, carbonatite MA NU subvolcanic model. 1. Introduction ...carbonatites (Weng et al., 2015). A typical primary carbonatite deposit model includes apatite-magnetite-pyrochlore |  | Campeny, Marc, Kamenetsky, Vadim S., Melgarejo, Joan C., Mangas, José, Manuel, José, 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 |  | | 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) – 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 |  | | 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 |  | Su, Ben-Xun, Zhang, Hong-Fu, Deloule, Etienne, Vigier, Nathalie, Sakyi, Patrick Asamoah (2014) Lithium elemental and isotopic variations in rock-melt interaction. Geochemistry, 74 (4) 705-713 doi:10.1016/j.chemer.2014.04.005 | Journal (article/letter/editorial) | | respectively, than the clinopyroxenes from silicate and carbonatite metasomatized samples. These features indicate...of the xenocrysts recorded carbonatite melt-peridotite reaction (carbonatite metasomatism) at mantle depth...Our results reveal that the interaction with carbonatite and silicate melts gave rise to an increase in...during transportation. In terms of ı7 Li, the carbonatite and silicate melts produced remarkably contrasting...than that of clinopyroxene in discriminating carbonatite and silicate melt interaction agents with peridotites |  | | 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..............................Fimmvörðuháls pass. Relatively primitive olivine and plagioclase bearing basalt was produced from ca. 500 m long...(with four crystals of Fo86), and a bytownite plagioclase (An81-76). Abundant vesicules and microlites...investigation of redox processes. For Fe, the pre-edge region provides an almost direct way of quantifying the |  | | Book (volume) | | APACHECOUNTY, ARIZONA M. F. Roden and D. Smith 2•E OKA CARBONATITE CO•PLEX: R•GNETI2• COF•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 |
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