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tantalum

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Journal Article
Journal: Geology
Published: 02 November 2022
Geology (2023) 51 (1): 49–53.
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Journal Article
Published: 01 November 2022
American Mineralogist (2022) 107 (11): 2020–2033.
... , 855 – 858 . Aulbach , S. , O’Reilly , S.Y. , Griffin , W.L. , and Pearson , N.J. ( 2008 ) Subcontinental lithospheric mantle origin of high niobium/tantalum ratios in eclogites . Nature Geoscience , 1 , 468 – 472 . Ballouard , C. , Poujol , M. , Boulvais , P...
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Journal Article
Journal: Geology
Published: 18 January 2022
Geology (2022) 50 (4): 486–490.
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Journal Article
Published: 11 January 2022
The Canadian Mineralogist (2022)
... 2022 This work is licensed under a Creative Commons Attribution 4.0 International License at https://creativecommons.org/licenses/by/4.0/ . Lithium tin tantalum pegmatite Zimbabwe The Canadian Mineralogist Vol. 60, pp. 1-31 (2022) DOI: 10.3749/canmin.2100032 1 THE MAGMATIC HYDROTHERMAL...
Journal Article
Journal: Economic Geology
Published: 01 January 2022
Economic Geology (2022) 117 (1): 213–236.
...-beryl zone ( Fig. 2a ), and an Li-mineralized quartz-albite-spodumene zone ( Figs. 2a , 4a , c; Xinjiang Geological Bureau, unpub. report, 1982), similar to the classic regional zonation of a lithium-cesium-tantalum (LCT)-type pegmatite field around its causative granite ( Černý, 1989 ). Fig. 4...
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Journal Article
Published: 01 October 2021
Russ. Geol. Geophys. (2021) 62 (10): 1175–1187.
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Journal Article
Published: 30 June 2021
Bulletin de la Société Géologique de France (2021) 192 (1): 33.
... fluid production in the Larderello geothermal field (Italy) at depths between 2.3 and 4 km . Chemical Geology 237 : 303 – 328 . Borodulin GP , Chevychelov VY , Zaraysky GP. 2009 . Experimental study of partitioning of tantalum, niobium, manganese, and fluorine between...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 29 April 2021
Lithosphere (2021) 2021 (Special 2): 6619463.
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Journal Article
Published: 10 November 2020
South African Journal of Geology (2020) 123 (4): 597–614.
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 09 November 2020
Lithosphere (2020) 2020 (1): 8831664.
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Journal Article
Published: 18 September 2020
Journal of the Geological Society (2021) 178 (1): jgs2020-120.
... niobium and tantalum have similar geochemical behaviours, a growing number of experiments and observations suggest that they are fractionated during magmatic processes. Nb/Ta ratios in most terrestrial rocks are variably subchondritic (<19.9 ± 0.6; Münker et al. 2003 ), which is known...
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Journal Article
Journal: Elements
Published: 01 August 2020
Elements (2020) 16 (4): 235–240.
...Edward S. Grew Lithium is rare in the cosmos, but the formation of continental crust has concentrated lithium into economic deposits. The 124 recognized Li mineral species occur largely in four geologic environments: (1) lithium–cesium–tantalum (LCT) granitic pegmatites and associated metasomatic...
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Journal Article
Published: 01 July 2020
American Mineralogist (2020) 105 (7): 1078–1087.
...Alysha G. McNeil; Robert L. Linnen; Roberta L. Flemming; Mostafa Fayek Abstract Niobium and tantalum, rare metals and high field strength elements (HFSEs) that are essential to modern technologies, are concentrated among others in lithium-cesium-tantalum (LCT) pegmatites and rare metal granites...
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Journal Article
Published: 01 May 2020
The Canadian Mineralogist (2020) 58 (3): 293–311.
... (without Li or Ba) zoning. Cesium values increase from 200 to 1400 ppm from core to rim. Conversely, Sn and W values decrease toward the rim (50 to 10 and 100 to 10 ppm, respectively). Tantalum and Ti values show fewer variations but drop abruptly close to the rim of the grain (100 to 20 and 2000 to 500...
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Journal Article
Published: 16 January 2020
The Canadian Mineralogist (2020) 58 (1): 45–69.
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Journal Article
Published: 01 January 2020
American Mineralogist (2020) 105 (1): 58–76.
... – 118 . Möller , P. , Dulski , P. , Szacki , W. , Malow , G. , and Riedel , E. ( 1988 ) Substitution of tin in cassiterite by tantalum, niobium, tungsten, iron and manganese . Geochimica et Cosmochimica Acta , 52 , 1497 – 1503 . Moscati , R.J. , and Neymark...
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Journal Article
Published: 01 January 2020
Russ. Geol. Geophys. (2020) 61 (1): 26–35.
... deposits columbite tantalite Ta/Nb indicator ratio Tantalum and niobium are heavy lithophile metals. Their position in the same group of the periodic table of elements determines their similar properties and similar behavior in geologic processes. These elements have close atomic radii...
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Journal Article
Published: 30 November 2019
The Canadian Mineralogist (2019) 57 (6): 843–851.
...% HF solution; solution B consisted of TaCl 5 dissolved in 2% HF. The dominant tantalum species in solution A at elevated temperatures was TaF 8 3– . In contrast, TaCl 6 – , which was the dominant complex in solution B at room temperature, disappeared as hydroxide complexes with an average ligand...
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Journal Article
Published: 30 September 2019
The Canadian Mineralogist (2019) 57 (5): 715–717.
...Dwight C. Bradley lithium-cesium-tantalum pegmatites tectonics paleoclimate Appalachian orogen §   Corresponding author e-mail address : bradleyorchard2@gmail.com © 2019 Mineralogical Association of Canada 2019 Fig. 1. Schematic cross section of a variably exhumed...
FIGURES
Journal Article
Published: 30 September 2019
The Canadian Mineralogist (2019) 57 (5): 749–751.
...Idoia Garate-Olave; Encarnación Roda-Robles; Pedro Pablo Gil-Crespo; Alfonso Pesquera © 2019 Mineralogical Association of Canada 2019 aplopegmatite Nb-Ta oxides Central Iberian Zone Tres Arroyos Niobium-tantalum oxides (CT) from the Tres Arroyos aplopegmatitic field mostly...