 | | Journal (article/letter/editorial) | | 165 THE LATE-STAGE MINIFLOOD OF Ca IN GRANITIC PEGMATITES: AN OPEN-SYSTEM ACID-REFLUX MODEL INVOLVING PLAGIOCLASE...Abstract As Richard H. Jahns used to say, granitic pegmatites are prone to stew in their own juice. The early...country rock, mostly from the apical parts of zoned pegmatites. There, it interacts with plagioclase in any...envision a convecting fluid phase cycling around the pegmatite body, and a reaction path that brings the acidified...acidified fluid back into the heart of the pegmatite. There, it is aggressive toward the microcline perthite |  | 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) | | AND TECTONIC CONTEXT OF LITHIUM-CESIUM-TANTALUM PEGMATITES IN THE APPALACHIANS DWIGHT BRADLEY§,* U.S. Geological...99775 U.S.A. PAUL O’SULLIVAN GeoSep Services, 1521 Pine Cone Road, Moscow, Idaho 83843, U.S.A. ANDREW MCCAULEY...lum (LCT) and niobium-yttrium-fluorine (NYF) pegmatites occur at intervals along the Appalachian orogen...(LA-ICP-MS), and apatite fission track ages for 14 pegmatites. Based mostly on these new results, we recognize...recognize a minimum of four ages of LCT pegmatites in the Appalachians. From oldest to youngest, these are: |  | Martins, T., Lima, A., Simmons, W. B., Falster, A. U., Noronha, F. (2011) GEOCHEMICAL FRACTIONATION OF Nb-Ta OXIDES IN Li-BEARING PEGMATITES FROM THE BARROSO-ALVAO PEGMATITE FIELD, NORTHERN PORTUGAL. The Canadian Mineralogist, 49 (3) 777-791 doi:10.3749/canmin.49.3.777 | Journal (article/letter/editorial) | | OF Nb–Ta OXIDES IN Li-BEARING PEGMATITES FROM THE BARROSO–ALVÃO PEGMATITE FIELD, NORTHERN PORTUGAL Tânia...University of New Orleans, New Orleans, Louisiana 70148, USA Fernando NORONHA Geology Centre, and Department...Portugal Abstract The Barroso–Alvão granitic pegmatite field, located in northern Portugal, is known...Li-bearing pegmatites, especially spodumene- and petalite-bearing bodies. Recent work on this pegmatite field...field characterized other types of pegmatites, and complex mineralization and mineral associations. Minerals |  | Novák, Milan, Cempírek, Jan, Gadas, Petr, Škoda, Radek, Vašinová Galiová, Michaela, Pezzotta, Federico, Groat, Lee A. (2015) Boralsilite and Li, Be-bearing "Boron Mullite" Al8B2Si2O19, Breakdown products of spodumene from the Manjaka pegmatite, Sahatany valley, Madagascar. The Canadian Mineralogist, 53 (2) 357-374 doi:10.3749/canmin.1400092 | Journal (article/letter/editorial) | | BREAKDOWN PRODUCTS OF SPODUMENE FROM THE MANJAKA PEGMATITE, SAHATANY VALLEY, MADAGASCAR MILAN NOVÁK§ Department...elbaite-subtype Manjaka granitic pegmatite, Sahatany Valley, Madagascar. The pegmatite mineral assemblage is relatively...> Ap + several accessory B-rich phases). This pegmatite forms an E–W-trending elongated body emplaced...emplaced in an Mg-rich calc-silicate rock; the pegmatite exocontact locally contains thin reaction zones (Tur+Phl±Brl)...minor extent of exocontact reactions along the pegmatite, and secondary rhodochrosite, are responsible |  | Černý, P., Teertstra, D. K., Chapman, R., Selway, J. B., Hawthorne, F. C., Ferreira, K., Chackowsky, L. E., Wang, X.-J., Meintzer, R. E. (2012) Extreme fractionation and deformation of the leucogranite-pegmatite suite at Red Cross Lake, Manitoba, Canada. IV. Mineralogy. The Canadian Mineralogist, 50 (6) 1839-1875 doi:10.3749/canmin.50.6.1839 | Journal (article/letter/editorial) | | FRACTIONATION AND DEFORMATION OF THE LEUCOGRANITE – PEGMATITE SUITE AT RED CROSS LAKE, MANITOBA, CANADA. IV. MINERALOGY...pegmatitic leucogranites and pegmatites populate the Red Cross Lake pegmatite field, located in a greenstone...Canadian Shield. Most of the leucogranites and pegmatites are geochemically rather primitive, but one of...lithiumenriched, and the most evolved lepidolite-rich pegmatites represent the most fractionated products of granitic...differentiation known to date. The lepidolite pegmatites consist mainly of albite, quartz and muscovite |  | | Journal (issue) | | Norway 8th International Symposium on Granitic Pegmatites Pre-conference excursion Tysfjord-Hamarøy PEG2017...PEG2017 8th International Symposium on Granitic Pegmatites Pre-conference excursion - Tysfjord-Hamarøy...in southwestern Fennoscandia: Backdrop to the pegmatite fields of southern Norway……………………………………………………………………………………...REE) concentration in rare-element granites and pegmatites from Russia………………………………………………………………..4 BARROS...MENUGE, J.F., ZACK, T. Rb-Sr studies of spodumene pegmatites and associated rocks in Leinster, Ireland…………………8 |
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