 | | Journal (article/letter/editorial) | | LCT-SUITE PEGMATITE WITH LATE-STAGE SODIUM ENRICHMENT, BRAZIL LAKE, YARMOUTH COUNTY, NOVA SCOTIA. I. GEOLOGICAL...J. KONTAK§ Nova Scotia Department of Natural Resources, P.O. Box 698, Halifax, Nova Scotia B3J 2T9, Canada...Canada Abstract The Brazil Lake pegmatite, in Yarmouth County, Nova Scotia, enriched in Li, Ta and Rb...conforms to the LCT-suite classification. The pegmatite group, dominated by two subvertical sheets, is...395 Ma for the pegmatite equates to an amagmatic event in this part of southern Nova Scotia, but given its |  | | Journal (article/letter/editorial) | | LCT-SUITE PEGMATITE WITH LATE-STAGE SODIUM ENRICHMENT, BRAZIL LAKE, YARMOUTH COUNTY, NOVA SCOTIA. II. IMPLICATIONS...Laurentian University, Sudbury, Ontario P3E 2E6, Canada T. Kurtis KYSER Department of Geological Sciences...Kingston, Ontario K7L 3N6, Canada Abstract The 395 Ma Brazil Lake granitic pegmatite, a rare occurrence of...an LCT-type (Li–Cs–Ta) pegmatite in the Meguma Terrane of Nova Scotia, Canada, is hosted by metasedimentary...mineralogical studies showed the pegmatite formed in two distinct stages, an early spodumene – K-feldspar – quartz |  | | Journal (article/letter/editorial) | | Francis Xavier University, Antigonish, Nova Scotia, B2G 2W5, Canada ROBERT A. MAYANOVIC Department of Physics...Francis Xavier University, Antigonish, Nova Scotia, B2G 2W5, Canada ABSTRACT The local structure of Ta(V)... Keywords: tantalum, complex, aqueous fluid, pegmatite, mineralization, transport. INTRODUCTION Highly...MINERALOGIST Ta-enriched secondary micas in the Tanco pegmatite, Manitoba. Similarly, Kontak & Kyser (2009) suggested...deposition of rare metal oxides in the Brazil Lake pegmatite, Nova Scotia. The transport and deposition of |  | Bradley, Dwight, Shea, Erin, Buchwaldt, Robert, Bowring, Sam, Benowitz, Jeff, O'Sullivan, Paul, McCauley, Andrew (2016) Geochronology and Tectonic Context of Lithium-Cesium-Tantalum Pegmatites In the Appalachians. The Canadian Mineralogist, 54 (4) 945-969 doi:10.3749/canmin.1600035 | Journal (article/letter/editorial) | | along the Appalachian orogen from Alabama to Nova Scotia. We report new U-Pb zircon (CA-TIMS), 40Ar/39Ar...From oldest to youngest, these are: (1) Brazil Lake, Nova Scotia, dated at ca. 395 (U-Pb columbite) by...component. Thus a set of zircon ages from an LCT pegmatite must be treated as analogous to detrital zircon...Keywords: pegmatite, Geochronology, Appalachian orogen, tectonics, lithium-cesium-tantalum pegmatite, nio...niobium-yttrium-fluorine pegmatite. INTRODUCTION Lithium-cesium-tantalum (or LCT) pegmatites are a widespread |  | | Journal (article/letter/editorial) | | close to the thermal-minimum composiKeywords : pegmatite, granite, rare metals, industrial minerals, gemstones...to be tites are precisely the opposite. Most pegmatite bodies are confused with rare earth element pegmatites...Other fabrics that qualify as pegmatitic THE PEGMATITE PUZZLE include systematic coarsening in crystal...upon an aqueous fluid, alone for which the term pegmatite (from phgnumi, to make stout or acting in concert...concepts of pegmatite formation have dominated lent in granitic compositions that the term pegmatite implies |  | Anderson, M. O., Lentz, D. R., McFarlane, C. R. M., Falck, H. (2013) A geological, geochemical and textural study of an LCT pegmatite: implications for the magmatic versus metasomatic origin of Nb-Ta mineralization in the Moose II pegmatite, Northwest Territories, Canada. Journal of GEOsciences, 58 (4) 299-320 | Journal (article/letter/editorial) | | geological, geochemical and textural study of a LCT pegmatite: implications for the magmatic versus metasomatic...mineralization in the Moose II pegmatite, Northwest Territories, Canada Melissa O. ANDERSON1*, David R...Bailey Drive, Fredericton, New Brunswick, E3B 5A3, Canada; anderson.geology@gmail.com Northwest Territories...Avenue, Yellowknife, Northwest Territories, X1A 2R3, Canada Corresponding author The internal zonation and...characterized in the Moose II pegmatite, Northwest Territories, Canada, to distinguish primary magmatic |  | Van Lichtervelde, Marieke, Grégoire, Michel, Linnen, Robert L., Béziat, Didier, Salvi, Stefano (2008) Trace element geochemistry by laser ablation ICP-MS of micas associated with Ta mineralization in the Tanco pegmatite, Manitoba, Canada. Contributions to Mineralogy and Petrology, 155 (6) 791-806 doi:10.1007/s00410-007-0271-z | Journal (article/letter/editorial) | | with Ta mineralization in the Tanco pegmatite, Manitoba, Canada Marieke Van Lichtervelde Æ Michel Grégoire...least small amounts of Ta. Abstract In the Tanco pegmatite, one of the world’s major Ta deposits, tantalum...petrogenesis of its host pegmatite. Micas are common in most of the pegmatite units and are intimately...they are interpreted to reflect Keywords Tanco pegmatite Tantalum Trace elements Ore deposit Micas... University of Waterloo, Waterloo, ON N2L 3G1, Canada D. Béziat S. Salvi CNRS-UMR5563. Laboratoire |  | | Journal (article/letter/editorial) | | ca. 1000 Ma. Keywords: granitic pegmatite, LCT pegmatite, NYF pegmatite, secular trends, supercontinent...et al. 1979, Tkachev 2011). Our tabulation of pegmatite ages builds on that of Tkachev (2011), but we...to the comprehensive book by London (2008). Pegmatite Geochronometers Although granitic pegmatites are...precise, accurate ages have proven elusive for many pegmatite occurrences, especially those in the LCT family...(1907) determined U-Pb ages for uraninite from two pegmatite districts in Connecticut. Over the past 40 years |  | | Journal (article/letter/editorial) | | statistical analysis applied to rare-element LCT-type pegmatite fields: an original approach to constrain faults–...emplacement of LCT-type (Lithium–Cesium–Tantalum) pegmatite fields and their relationships with host rocks...quantify both i) the spatial distribution of the pegmatite occurrences, including their grouping/ scattering...NNE trending faults family; with 50 % of the pegmatite occurrences located less than 500 m away from...out a lack of spatial link between each of the pegmatite subtypes and several potential granitic sources |  | Ballouard, Christophe, Elburg, Marlina A., Tappe, Sebastian, Reinke, Christian, Ueckermann, Henriette, Doggart, Shane (2020) Magmatic-hydrothermal evolution of rare metal pegmatites from the Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Ore Geology Reviews, 116. 103252 doi:10.1016/j.oregeorev.2019.103252 | Journal (article/letter/editorial) | | pegmatites from the Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Christophe Ballouard...pegmatites from the Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa), Ore Geology...pegmatites from the Mesoproterozoic Orange River pegmatite belt (Namaqualand, South Africa) Authors: Christophe...geochronology Abstract The 450 km long Orange River pegmatite belt intruded the Namaqua Sector of the Mesoproterozoic...aplite border and wall zone, a quartz-feldspar-spodumene-lepidolite-bearing intermediate zone, and a quartz-K-feldspar |  | Melleton, J., Gloaguen, E., Frei, D., Novak, M., Breiter, K. (2012) HOW ARE THE EMPLACEMENT OF RARE-ELEMENT PEGMATITES, REGIONAL METAMORPHISM AND MAGMATISM INTERRELATED IN THE MOLDANUBIAN DOMAIN OF THE VARISCAN BOHEMIAN MASSIF, CZECH REPUBLIC?. The Canadian Mineralogist, 50 (6) 1751-1773 doi:10.3749/canmin.50.6.1751 | Journal (article/letter/editorial) | | rare-element pegmatites, belonging to different pegmatite fields, have been obtained by the LA–SF–ICP–MS...exhumation of high-pressure rocks. Keywords: LCT pegmatite, rare-element-enriched magma, columbite–tantalite...l’exhumation des roches de haute pression. Mots-clés: pegmatite LCT, magmatisme à éléments rares, datation sur...ideally suited for U–Pb dating of rare-element pegmatite. They can easily accept U into their structure...from ~1 m to up to 35 m in thickness. All the pegmatite bodies studied are located in the Moldanubian |  | | Thesis/Dissertation | | regular NYF-type pegmatites from the Namaqualand pegmatite belt, Northern Cape, South Africa by Minenhle...Johannesburg NOVEMBER 2020 Supervisor: Prof. M. A Elburg Co-supervisor: Dr. C Ballouard ACKNOWLEDGEMENTS I...never unnoticed and for that, I thank you. To my co-supervisor, Dr. Christophe Ballouard, thank you for...40-50 km wide Namaqualand pegmatite belt, synonymous with the Orange River pegmatite belt (ORPB), consists...consists of the Witkop, Koegab and Sidi-Barrani pegmatite-1 complex pegmatites which were emplaced at 985 |  | | Journal (article/letter/editorial) | | Keywords Jo ur Anatexis, rare metal, rare earth, pegmatite, Chinese Altai 1. Introduction Granitic pegmatites...et al., 2012a; London, 2018). In some cases, a pegmatite can be linked to its parental granite according...differentiation of granitic melts and the emplacement of pegmatite-forming melts are still unclear. Recent studies...proved that other than fractional crystallization, pegmatite formation can involve other mechanisms, such as...2017; Simmons and Falster, 2016). The study of pegmatite petrogenesis is crucial from a scientific prospective |
|
Brazil Lake pegmatite, Yarmouth Co., Nova Scotia, Canada