Sarchi, Carisa; Lucassen, Friedrich; Meixner, Anette; Caffe, Pablo J; Becchio, Raúl A; Kasemann, Simone A (2023): Li, δ7Li, 87Sr/86S and 143Nd/144Nd of surface samples from Salares Diablillos, Ratones and Centenario [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.954626, In: Sarchi, C et al. (2023): Li content and Li-Sr-Nd isotope composition of salar deposits from southern Puna salars (Argentina) [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.954690
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Abstract:
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.
Related to:
Sarchi, Carisa; Lucassen, Friedrich; Meixner, Anette; Caffe, Pablo J; Becchio, Raúl A; Kasemann, Simone A (2023): Lithium enrichment in the Salar de Diablillos, Argentina, and the influence of Cenozoic volcanism in a basin dominated by Paleozoic basement. Mineralium Deposita, https://doi.org/10.1007/s00126-023-01181-z
Coverage:
Median Latitude: -25.157823 * Median Longitude: -66.745504 * South-bound Latitude: -25.325010 * West-bound Longitude: -66.824440 * North-bound Latitude: -24.856330 * East-bound Longitude: -66.632080
Minimum Elevation: 3830.0 m * Maximum Elevation: 4200.0 m
Event(s):
COPA * Latitude: -24.892500 * Longitude: -66.804720 * Elevation: 4200.0 m * Location: Copalayo river, Argentina * Method/Device: Surface sample (SURF_S) * Comment: Freshwater sample
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Sarchi, Carisa | |||
| 2 | Comment of event | Comment | Sarchi, Carisa | |||
| 3 | Latitude of event | Latitude | Sarchi, Carisa | |||
| 4 | Longitude of event | Longitude | Sarchi, Carisa | |||
| 5 | Elevation of event | Elevation | m | Sarchi, Carisa | ||
| 6 | Location of event | Location | Sarchi, Carisa | |||
| 7 | Lithium | Li | µg/g | Sarchi, Carisa | ||
| 8 | δ7Li | δ7Li | ‰ | Sarchi, Carisa | ||
| 9 | δ7Li, standard deviation | δ7Li std dev | ± | Sarchi, Carisa | 2sd mean | |
| 10 | Strontium-87/Strontium-86 ratio | 87Sr/86Sr | Sarchi, Carisa | |||
| 11 | Strontium-87/Strontium-86 ratio, standard deviation | 87Sr/86Sr std dev | ± | Sarchi, Carisa | ||
| 12 | Strontium | Sr | µg/g | Sarchi, Carisa | ||
| 13 | Neodymium-143/Neodymium-144 ratio | 143Nd/144Nd | Sarchi, Carisa | |||
| 14 | Neodymium-143/Neodymium-144 ratio, standard deviation | 143Nd/144Nd std dev | ± | Sarchi, Carisa | 2sd mean | |
| 15 | ε-Neodymium | ε-Nd | Sarchi, Carisa |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
147 data points