Whole-rock major and trace elements data, and whole-rock and carbonate isotope data, for the potassic and ultrapotassic rocks from Nangqian basin (Eastern Tibet)
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2020
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| author | Goussin, Fanny Cordier, Carole Riel, Nicolas Guillot, Stéphane Boulvais, Philippe Roperch, Pierrick Replumaz, Anne Schulmann, Karel Dupont-Nivet, Guillaume Rosas, Filipe Zhaojie, Guo |
| author_facet | Goussin, Fanny Cordier, Carole Riel, Nicolas Guillot, Stéphane Boulvais, Philippe Roperch, Pierrick Replumaz, Anne Schulmann, Karel Dupont-Nivet, Guillaume Rosas, Filipe Zhaojie, Guo |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Whole-rock major and trace elements data, and whole-rock and carbonate isotope data, for the Nangqian potassic and ultrapotassic rocks. Whole-rock major and trace elements were measured at ISTerre, University Grenoble Alpes. For major elements, 50 mg of rock powder were digested in HF/HNO3 mixture at 90 during five days. Excess HF was neutralized using boric acid and solutions were diluted with 250 mL of Milli-Q water. Major element contents were measured by Inductively Coupled Plasma - Atomic Spectrometry (ICP-AES) in Grenoble using the method given in Chauvel et al. (2011, doi:10.1111/j.1751-908X.2010.00086.x). For trace elements, 100mg of rock powder were digested with a mixture of concentrated HF and HNO3 at 150 for at least two weeks in steer Spar bombs. Excess Hf was neutralized with HNO3, using cycles of acid addition/evaporation. 300 mg of a spike containing Be, Ge, In, Tm and Bi were added to an aliquot of the rock solution corresponding to 8 mg of the initial powder. The solutions were then evaporated, diluted with 2% HNO3 (+ 1 drop of HF), and analysed by Inductively Coupled Plasma - Mass Spectrometry. During measurement, the signal was calibrated using the reference material BR24 (Chauvel et al., 2011, doi:10.1111/j.1751-908X.2010.00086.x), which was run every 4 or 5 analyses. Quality of the analytical procedure was checked by analysing blanks, international reference materials (BHVO2, BEN, BCR2), duplicate solutions and multiple runs of solutions. Only elements with external reproducibility < 15% are given. The SARM-CRPG in Nancy and SEDISOR in Brest performed the whole-rock Sr and Nd isotope analyses. Results were normalized to values of 143Nd/144Nd = 0.512110 for JNd-I reference material and 0.511850 for LaJolla, and to 87Sr/86Sr = 0.710250 for the reference material NIST SRM 987. Blanks were 74 pg for Nd and 137 pg for Sr. ε-Nd(T) ratios were calculated using the CHUR isotopic composition of Bouvier et al. (2008, doi:10.1016/j.epsl.2008.06.010). Stable isotope analysis of carbonates was carried out in the stable isotope laboratory of Geoscience Rennes, CNRS-University of Rennes I. Carbonates in whole-rock powders were selectively dissolved at 50 with anhydrous phosphoric acid H3PO4. The released CO2 gases were collected using a cryogenic extraction line, and their isotopic compositions were analyzed by a VG Optima triple collector mass spectrometer. Results were normalized to the values of the laboratory in-house standard Prolabo Rennes and the international standard NBS18. The analytical uncertainty is ±0.2 for δ18O carb, and ±0.1 for δ13C carb. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_910772 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Whole-rock major and trace elements data, and whole-rock and carbonate isotope data, for the potassic and ultrapotassic rocks from Nangqian basin (Eastern Tibet) Goussin, Fanny Cordier, Carole Riel, Nicolas Guillot, Stéphane Boulvais, Philippe Roperch, Pierrick Replumaz, Anne Schulmann, Karel Dupont-Nivet, Guillaume Rosas, Filipe Zhaojie, Guo after Bouvier et al., 2008; Aluminium oxide; Barium; Caesium; Calcium oxide; Calculated; carbonate C-O isotopy; Cerium; Chromium; Cobalt; Copper; Dysprosium; Elements, total; Erbium; Europium; Event label; Gadolinium; Hafnium; Holmium; ICP-AES; ICP-MS; Inductively coupled plasma atomic emission spectroscopy; in-situ mineral geochemistry; Iron oxide, Fe2O3; Isotope ratio mass spectrometry; Lanthanum; Latitude of event; Lead; Lithium; Longitude of event; Loss on ignition; Lutetium; Magnesium number; Magnesium oxide; Manganese oxide; Mass spectrometer Optima-Isogas triple collector; Nangqian basin, Eastern Tibet; Neodymium; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard deviation; Neodymium-143/Neodymium-144 ratio (T); Nickel; Niobium; Phosphorus pentoxide; Potassium oxide; Praseodymium; ROCK; Rock sample; Rock type; Rubidium; Rubidium-87/Strontium-86 ratio; Samarium; Samarium-147/Neodymium-144 ratio; SARM-CRPG Nancy and SEDISOR Brest; Scandium; Silicon dioxide; Sodium oxide; Strontium; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, standard deviation; Strontium-87/Strontium-86 ratio (T); Tantalum; Terbium; Thorium; Titanium; Titanium dioxide; Uranium; Vanadium; Whole-rock geochemistry; Ytterbium; Yttrium; YU-14-07; YU-14-15; YU-14-18D; YU-14-29; YU-14-33; YU-14-35; YU-14-36; YU-15-116; YU-15-55; YU-15-83; YU-15-84; YU-15-85; YU-15-87A; YU-15-87B; YU-15-91; YU-15-92; Zinc; Zirconium; δ13C, carbonate; δ18O, carbonate; ε-Neodymium (T) Whole-rock major and trace elements data, and whole-rock and carbonate isotope data, for the Nangqian potassic and ultrapotassic rocks. Whole-rock major and trace elements were measured at ISTerre, University Grenoble Alpes. For major elements, 50 mg of rock powder were digested in HF/HNO3 mixture at 90 during five days. Excess HF was neutralized using boric acid and solutions were diluted with 250 mL of Milli-Q water. Major element contents were measured by Inductively Coupled Plasma - Atomic Spectrometry (ICP-AES) in Grenoble using the method given in Chauvel et al. (2011, doi:10.1111/j.1751-908X.2010.00086.x). For trace elements, 100mg of rock powder were digested with a mixture of concentrated HF and HNO3 at 150 for at least two weeks in steer Spar bombs. Excess Hf was neutralized with HNO3, using cycles of acid addition/evaporation. 300 mg of a spike containing Be, Ge, In, Tm and Bi were added to an aliquot of the rock solution corresponding to 8 mg of the initial powder. The solutions were then evaporated, diluted with 2% HNO3 (+ 1 drop of HF), and analysed by Inductively Coupled Plasma - Mass Spectrometry. During measurement, the signal was calibrated using the reference material BR24 (Chauvel et al., 2011, doi:10.1111/j.1751-908X.2010.00086.x), which was run every 4 or 5 analyses. Quality of the analytical procedure was checked by analysing blanks, international reference materials (BHVO2, BEN, BCR2), duplicate solutions and multiple runs of solutions. Only elements with external reproducibility < 15% are given. The SARM-CRPG in Nancy and SEDISOR in Brest performed the whole-rock Sr and Nd isotope analyses. Results were normalized to values of 143Nd/144Nd = 0.512110 for JNd-I reference material and 0.511850 for LaJolla, and to 87Sr/86Sr = 0.710250 for the reference material NIST SRM 987. Blanks were 74 pg for Nd and 137 pg for Sr. ε-Nd(T) ratios were calculated using the CHUR isotopic composition of Bouvier et al. (2008, doi:10.1016/j.epsl.2008.06.010). Stable isotope analysis of carbonates was carried out in the stable isotope laboratory of Geoscience Rennes, CNRS-University of Rennes I. Carbonates in whole-rock powders were selectively dissolved at 50 with anhydrous phosphoric acid H3PO4. The released CO2 gases were collected using a cryogenic extraction line, and their isotopic compositions were analyzed by a VG Optima triple collector mass spectrometer. Results were normalized to the values of the laboratory in-house standard Prolabo Rennes and the international standard NBS18. The analytical uncertainty is ±0.2 for δ18O carb, and ±0.1 for δ13C carb. |
| title | Whole-rock major and trace elements data, and whole-rock and carbonate isotope data, for the potassic and ultrapotassic rocks from Nangqian basin (Eastern Tibet) |
| topic | after Bouvier et al., 2008; Aluminium oxide; Barium; Caesium; Calcium oxide; Calculated; carbonate C-O isotopy; Cerium; Chromium; Cobalt; Copper; Dysprosium; Elements, total; Erbium; Europium; Event label; Gadolinium; Hafnium; Holmium; ICP-AES; ICP-MS; Inductively coupled plasma atomic emission spectroscopy; in-situ mineral geochemistry; Iron oxide, Fe2O3; Isotope ratio mass spectrometry; Lanthanum; Latitude of event; Lead; Lithium; Longitude of event; Loss on ignition; Lutetium; Magnesium number; Magnesium oxide; Manganese oxide; Mass spectrometer Optima-Isogas triple collector; Nangqian basin, Eastern Tibet; Neodymium; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard deviation; Neodymium-143/Neodymium-144 ratio (T); Nickel; Niobium; Phosphorus pentoxide; Potassium oxide; Praseodymium; ROCK; Rock sample; Rock type; Rubidium; Rubidium-87/Strontium-86 ratio; Samarium; Samarium-147/Neodymium-144 ratio; SARM-CRPG Nancy and SEDISOR Brest; Scandium; Silicon dioxide; Sodium oxide; Strontium; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, standard deviation; Strontium-87/Strontium-86 ratio (T); Tantalum; Terbium; Thorium; Titanium; Titanium dioxide; Uranium; Vanadium; Whole-rock geochemistry; Ytterbium; Yttrium; YU-14-07; YU-14-15; YU-14-18D; YU-14-29; YU-14-33; YU-14-35; YU-14-36; YU-15-116; YU-15-55; YU-15-83; YU-15-84; YU-15-85; YU-15-87A; YU-15-87B; YU-15-91; YU-15-92; Zinc; Zirconium; δ13C, carbonate; δ18O, carbonate; ε-Neodymium (T) |
| url | https://doi.org/10.1594/PANGAEA.910772 |