Li, δ7Li, 87Sr/86S and 143Nd/144Nd of surface samples from Salares Diablillos, Ratones and Centenario
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| Format: | Dataset Open Access |
| Sprache: | en |
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PANGAEA
2023
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| _version_ | 1867170415099510784 |
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| author | Sarchi, Carisa Lucassen, Friedrich Meixner, Anette Caffe, Pablo J Becchio, Raúl A Kasemann, Simone A |
| author_facet | Sarchi, Carisa Lucassen, Friedrich Meixner, Anette Caffe, Pablo J Becchio, Raúl A Kasemann, Simone A |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The Central Andes of South America hosts the largest known lithium (Li) anomalies in a restricted area, but the primary lithium sources of the salar deposits and the mobilization process of lithium are still a matter of speculation. Chemical weathering at or near the surface and leaching in hydrothermal systems of the active magmatic arc are considered as the two main mechanisms of Li extraction from the source rock. The lithium and strontium isotope composition of typical salar deposits offer insights into the processes on how Li brine deposits in Andean evaporites are formed. To further the understanding of the different processes of Li mobilisation (weathering and/or hydrothermal leaching) and accumulation that play an important role in the salars of the southern Puna in north-western Argentina, we study the Centenario, Ratones and Diablillos salars, the smallest salars that are among the world-class brine deposits in the Central Andes Li-rich salars. We use Sr isotopes (87Sr/86Sr) for source tracing and Li contents and Li isotopes (δ7Li) to constrain Li mobilization from source to deposition. Nd isotope compositions (143Nd/144Nd) were also determined in clastic sediment samples from salar to provide additional constrains to the rock sources. The studied materials include catchment and basin surface samples from the three studied closed basins. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_954626 |
| institution | PANGAEA |
| language | en |
| publishDate | 2023 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Li, δ7Li, 87Sr/86S and 143Nd/144Nd of surface samples from Salares Diablillos, Ratones and Centenario Sarchi, Carisa Lucassen, Friedrich Meixner, Anette Caffe, Pablo J Becchio, Raúl A Kasemann, Simone A Central Andes; Comment of event; COPA; Copalayo river, Argentina; Di-14-01; Di-14-08; Di-14-18; Di-14-21; Diablillos river, Argentina; Elevation of event; Event label; Inca viejo range, Argentina; Latitude of event; Lithium; Lithium isotopes; Lithium triangle; Location of event; Longitude of event; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard deviation; Puna; QB1; QB-14-01; QB-14-09; QB-14-12; Salar Centenario, Argentina; Salar de Diablillos, Argentina; Salar deposits; Salar de Ratones, Argentina; SCN01; SCN02; SCN02A; SD04; SD05; SD06; SD06A; SD07; SD08; Sierra de Luracatao range, Argentina; SRT01B; SRT02; SRT03; SRT04; Strontium; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, standard deviation; SURF_S; Surface sample; TAR; Taron Cayon, Argentina; δ7Li; δ7Li, standard deviation; ε-Neodymium The Central Andes of South America hosts the largest known lithium (Li) anomalies in a restricted area, but the primary lithium sources of the salar deposits and the mobilization process of lithium are still a matter of speculation. Chemical weathering at or near the surface and leaching in hydrothermal systems of the active magmatic arc are considered as the two main mechanisms of Li extraction from the source rock. The lithium and strontium isotope composition of typical salar deposits offer insights into the processes on how Li brine deposits in Andean evaporites are formed. To further the understanding of the different processes of Li mobilisation (weathering and/or hydrothermal leaching) and accumulation that play an important role in the salars of the southern Puna in north-western Argentina, we study the Centenario, Ratones and Diablillos salars, the smallest salars that are among the world-class brine deposits in the Central Andes Li-rich salars. We use Sr isotopes (87Sr/86Sr) for source tracing and Li contents and Li isotopes (δ7Li) to constrain Li mobilization from source to deposition. Nd isotope compositions (143Nd/144Nd) were also determined in clastic sediment samples from salar to provide additional constrains to the rock sources. The studied materials include catchment and basin surface samples from the three studied closed basins. |
| title | Li, δ7Li, 87Sr/86S and 143Nd/144Nd of surface samples from Salares Diablillos, Ratones and Centenario |
| topic | Central Andes; Comment of event; COPA; Copalayo river, Argentina; Di-14-01; Di-14-08; Di-14-18; Di-14-21; Diablillos river, Argentina; Elevation of event; Event label; Inca viejo range, Argentina; Latitude of event; Lithium; Lithium isotopes; Lithium triangle; Location of event; Longitude of event; Neodymium-143/Neodymium-144 ratio; Neodymium-143/Neodymium-144 ratio, standard deviation; Puna; QB1; QB-14-01; QB-14-09; QB-14-12; Salar Centenario, Argentina; Salar de Diablillos, Argentina; Salar deposits; Salar de Ratones, Argentina; SCN01; SCN02; SCN02A; SD04; SD05; SD06; SD06A; SD07; SD08; Sierra de Luracatao range, Argentina; SRT01B; SRT02; SRT03; SRT04; Strontium; Strontium-87/Strontium-86 ratio; Strontium-87/Strontium-86 ratio, standard deviation; SURF_S; Surface sample; TAR; Taron Cayon, Argentina; δ7Li; δ7Li, standard deviation; ε-Neodymium |
| url | https://doi.org/10.1594/PANGAEA.954626 |