 | | Journal (article/letter/editorial) | | Chemical variation and significance of micas from the Fregeneda-Almendra pegmatitic field (Central-Iberian...Zone, Spain and Portugal) Romeu VieiRa,1,* encaRnación Roda-Robles,2,† alfonso PesqueRa,2 and alexandRe...Apdo. 644, 48080 Bilbao, Spain 2 abstRact Field, textural, paragenetic, and chemical data for micas...of the Fregeneda-Almendra pegmatitic field (Central-Iberian Zone) are used to characterize and evaluate...(4) Li-mica-rich, and (5) cassiterite-rich pegmatites, plus six types of barren and intermediate pegmatites |  | | Journal (article/letter/editorial) | | Chemical variations and significance of phosphates from the Fregeneda-Almendra pegmatite field, Central Iberian...Iberian Zone (Spain and Portugal) Encarnación Roda-Robles & Romeu Vieira & Alfonso Pesquera & Alexandre...within a schistmetagreywacke complex in the Fregeneda-Almendra area (Central Iberian Zone). They intrude...intrude pre-Ordovician metasedimentary rocks and show a zonal distribution relative to the Meda-Penedono-Lumbrales...bodies to those enriched in Li, F, Sn, Nb>Ta, P and Be. Based on mineralogical criteria, these pegmatites |  | | Journal (article/letter/editorial) | | Salamanca, Spain. Part I: accessory Sn, Nb, Ta and Ti minerals in leucogranites, aplites and pegmatites...Salamanca, Plaza de los Caídos s/n, 37006 Salamanca, Spain; tllg@usal.es * Corresponding author Sn–Nb–Ta–Ti...the Jálama Batholith (Salamanca, Spain) and in the related LCT pegmatite dikes of the rare-element class...cassiterite and columbite-group minerals crystallized in the Cruz del Rayo peribatholithic pegmatite dikes...Schist-Graywacke Complex. Cassiterite, rutile, ilmenite and tantalite-(Fe) occur disseminated in the border facies |  | | Journal (article/letter/editorial) | | Abstract A sample from the Koktokay No. 3 granitic pegmatite, Altai Mountains, northwestern China, which shows...X-ray diffraction, electronmicroprobe analysis, and secondary-ion mass spectrometry (SIMS) techniques...microscope, the sample shows colorless lithiophilite and deep-orange sicklerite, as well as several intermediate...09Fe3+0.08)PO4 to Li0.69(Mn2+0.62Mn3+0.19Fe3+0.16)PO4, and show a progressive decrease of the lithium content...Five crystals were extracted from the thin section, and their crystal structures were refined in space group |  | Roda-Robles, Encarnación, Pesquera, Alfonso, Simmons, William, Gil-Crespo, Pedro P., Webber, Karen, Nizamoff, James, Falster, Alexander (2020) Paragenetic relationships, geochemistry and petrogenetic significance of primary Fe Mn phosphates from pegmatites: The case study of Cañada (Salamanca, Spain) and Palermo (New Hampshire, USA) pegmatites. Lithos, 374. 105710pp. doi:10.1016/j.lithos.2020.105710 | Journal (article/letter/editorial) | | Pre-proof Paragenetic relationships, geochemistry and petrogenetic significance of primary Fe-Mn phosphates...pegmatites: The case study of Cañada (Salamanca, Spain) and Palermo (New Hampshire, USA) pegmatites Encarnación...et al., Paragenetic relationships, geochemistry and petrogenetic significance of primary Fe-Mn phosphates...pegmatites: The case study of Cañada (Salamanca, Spain) and Palermo (New Hampshire, USA) pegmatites, LITHOS...acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not |  | Garate-Olave, Idoia, Roda-Robles, Encarnación, Gil-Crespo, Pedro Pablo, Pesquera, Alfonso, Errandonea-Martin, Jon (2020) The Tres Arroyos Granitic Aplite-Pegmatite Field (Central Iberian Zone, Spain): Petrogenetic Constraints from Evolution of Nb-Ta-Sn Oxides, Whole-Rock Geochemistry and U-Pb Geochronology. Minerals, 10 (11) 1008 doi:10.3390/min10111008 | Journal (article/letter/editorial) | | Tres Arroyos Granitic Aplite-Pegmatite Field (Central Iberian Zone, Spain): Petrogenetic Constraints from...Evolution of Nb-Ta-Sn Oxides, Whole-Rock Geochemistry and U-Pb Geochronology Idoia Garate-Olave * , Encarnación...Alfonso Pesquera and Jon Errandonea-Martin Department of Geology, Faculty of Science and Technology, University...University of the Basque Country UPV/EHU, 48940 Leioa, Spain; encar.roda@ehu.eus (E.R.-R.); pedro.gil@ehu.eus... Abstract: Abundant Li-Cs-Ta aplite-pegmatite dykes were emplaced in the western Central Iberian |  | Roda-Robles, E., Galliski, M. A., Roquet, M. B., Hatert, F., de Paeseval, P. (2012) Phosphate nodules containing two distinct assemblages in the Cema granitic pegmatite, San Luis province, Argentina: Paragenesis, composition and significance. The Canadian Mineralogist, 50 (4) 913-931 doi:10.3749/canmin.50.4.913 | Journal (article/letter/editorial) | | THE CEMA GRANITIC PEGMATITE, SAN LUIS PROVINCE, ARGENTINA: PARAGENESIS, COMPOSITION AND SIGNIFICANCE Encarnación...Vasco (UPV/EHU), P.O. Box 644, E–48080 Bilbao, Spain Miguel A. GALLISKI IANIGLA, CCT–MENDOZA CONICET...are common in the outer core zone of the Cema pegmatite, San Luis Range, Argentina. Two different complex...varulite and staněkite among the main products of replacement, Fe/(Fe + Mn) values between 0.46 and 0.48...48 for sicklerite, and MgO values up to 2.14 wt%. The other association is lithiophilite–sicklerite-rich |  | | Journal (article/letter/editorial) | | 1531 MINERALOGY AND GEOCHEMISTRY OF PHOSPHATES AND SILICATES IN THE SAPUCAIA PEGMATITE, MINAS GERAIS,... BRAZIL: GENETIC IMPLICATIONS Maxime BAIJOT and Frédéric HATERT§ Laboratoire de Minéralogie, B18, Université...Grand-Duché de Luxembourg Abstract The Sapucaia pegmatite is located in the well-known Eastern Brazilian...Minas Gerais, Brazil. Detailed mapping of the pegmatite body revealed five zones, showing distinct mineral...intermediate zone (IZ), and a quartz core (Q). Phosphate masses found in the pegmatite contains two different |  | Roda-Robles, Encarnación, Pesquera, Alfonso, García De Madinabeitia, Sonia, Gil Ibarguchi, José-Ignacio, Nizamoff, Jim, Simmons, William, Falster, Alexander, Galliski, Miguel Angel (2014) ON THE GEOCHEMICAL CHARACTER OF PRIMARY Fe-Mn PHOSPHATES BELONGING TO THE TRIPHYLITE-LITHIOPHILITE, GRAFTONITE-BEUSITE, AND TRIPLITE-ZWIESELITE SERIES: FIRST RESULTS AND IMPLICATIONS FOR PEGMATITE PETROGENESIS. The Canadian Mineralogist, 52 (2) 321-335 doi:10.3749/canmin.52.2.321 | Journal (article/letter/editorial) | | GRAFTONITE-BEUSITE, AND TRIPLITE-ZWIESELITE SERIES: FIRST RESULTS AND IMPLICATIONS FOR PEGMATITE PETROGENESIS...PETROGENESIS Encarnación RODA-ROBLES and Alfonso PESQUERA Departamento de Mineralogía y Petrología, Univ. País Vasco...E–48080, Bilbao, Spain Sonia GARCÍA DE MADINABEITIA SGIker-Geochronology, UPV/EHU, Spain José-Ignacio...Bilbao, Spain Jim NIZAMOFF, William SIMMONS, and Alexander FALSTER Department of Earth and Environmental...granites and, rarely, in some hydrothermal quartz-rich dikes. A comprehensive textural and geochemical |  | Roza Llera, Ana, Fuertes-Fuente, Mercedes, Cepedal, Antonia, Martin-Izard, Agustín (2019) Barren and Li–Sn–Ta Mineralized Pegmatites from NW Spain (Central Galicia): A Comparative Study of Their Mineralogy, Geochemistry, and Wallrock Metasomatism. Minerals, 9 (12) 739 doi:10.3390/min9120739 | Journal (article/letter/editorial) | | minerals Article Barren and Li–Sn–Ta Mineralized Pegmatites from NW Spain (Central Galicia): A Comparative...Geochemistry, and Wallrock Metasomatism Ana Roza Llera, Mercedes Fuertes-Fuente * , Antonia Cepedal and Agustín...of Oviedo, Arias de Velasco s/n, 33005 Oviedo, Spain; rozaana@uniovi.es (A.R.L.); mcepedal@geol.uniovi...barren and Li–Sn–Ta-bearing pegmatites hosted by metasedimentary rocks. A number of common and contrasting...(barren) and Li–Sn–Ta mineralized Presqueira pegmatite are established in this study. K-feldspar and muscovite |  | Melcher, Frank, Graupner, Torsten, Gäbler, Hans-Eike, Sitnikova, Maria, Henjes-Kunst, Friedhelm, Oberthür, Thomas, Gerdes, Axel, Dewaele, Stijn (2015) Tantalum–(niobium–tin) mineralisation in African pegmatites and rare metal granites: Constraints from Ta–Nb oxide mineralogy, geochemistry and U–Pb geochronology. Ore Geology Reviews, 64. 667-719 doi:10.1016/j.oregeorev.2013.09.003 | Journal (article/letter/editorial) | | pegmatites and rare metal granites: Constraints from Ta-Nb oxide mineralogy, geochemistry and U-Pb geochronology...pegmatites and rare metal granites: Constraints from Ta-Nb oxide mineralogy, geochemistry and U-Pb geochronology...manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published...may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain...pegmatites and rare metal granites: Constraints from Ta-Nb oxide mineralogy, geochemistry and U-Pb geochronology |  | | Journal (article/letter/editorial) | | Southern and Equatorial Pacific Oceans SÉTAREH RAD1, ISABELLE BASILE-DOELSCH2, FLORENCE QUESNEL1 AND CHRISTIAN...RADIC1*, F. LACAN1, C. JEANDEL1, F. POITRASSON2 3 AND G. SARTHOU 1 BRGM, 3 avenue Claude-Guillemin, 45060...good deal of interest with both data collecting and modeling efforts. Most of the studies focused on... rocks present on the Paleocene-Eocene boundary and on the silicification formed in the porosity during...been used as proxies for understanding the Si cycle and its variations in the past. Here we analyzed silicon |
|
