Lithium Inventory of the Cerro Galán Volcanic System (Argentina): The Role of Magmatism as a Source for Li-Bearing Brine Deposits
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F25%3A10169787" target="_blank" >RIV/00025798:_____/25:10169787 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.5382/econgeo.5154" target="_blank" >https://doi.org/10.5382/econgeo.5154</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.5382/econgeo.5154" target="_blank" >10.5382/econgeo.5154</a>
Alternative languages
Result language
angličtina
Original language name
Lithium Inventory of the Cerro Galán Volcanic System (Argentina): The Role of Magmatism as a Source for Li-Bearing Brine Deposits
Original language description
Lithium-rich brines in South America's Li triangle host Earth's largest Li reserves, crucial for the global energy transition. Although Cenozoic magmatism near salars in the Li triangle often is considered as a major potential Li source, there is limited characterization of Li behavior in these magmatic systems. To address this, we present the first detailed Li study of the voluminous ignimbrites within the Cerro Galan volcanic system, a potential Li source for the Salar del Hombre Muerto, which is actively producing Li for batteries. Although most Cerro Galan volcanic system units exhibit normal Li concentrations in groundmass glass (30-50 ppm) relative to rhyolitic centers globally, the similar to 630-km(3) Cerro Galan ignimbrite contains glass with significantly higher Li contents (>90 ppm), reflecting increased melt differentiation. Throughout the volcanic system, plagioclase and quartz display varied Li contents influenced by syneruptive degassing, and additionally for plagioclase, posteruptive modifications. Biotites in the Cerro Galan volcanic system are magmatic and range from 1 to 689 ppm Li, with biotites returning low analytical totals (low total biotites) enriched in Li, Pb, and Cs, consistent with the entrapment of an Li-rich magmatic volatile phase during biotite crystallization. Such a magmatic volatile phase is isotopically light (delta Li-7 as low as -23 parts per thousand) and may reach 10,000 ppm Li according to binary mixing modeling. We propose that large magmatic centers, like the Cerro Galan volcanic system, may sustain exsolution of such a magmatic volatile phase and its transport through caldera-hosted hydrothermal systems. When such volcanic centers overlap with closed-basin watershed, magmatic Li-rich fluids could be selectively transported into basins, representing a source for Li-bearing salars, such as in the Salar del Hombre Muerto situated near the Cerro Galan volcanic system.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
<a href="/en/project/GA23-07625S" target="_blank" >GA23-07625S: Pre-Variscan oceanic basins of the Bohemian Massif - Integrating petrology, geochronology and non-traditional stable isotope systems</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Economic Geology
ISSN
0361-0128
e-ISSN
1554-0774
Volume of the periodical
120
Issue of the periodical within the volume
5
Country of publishing house
US - UNITED STATES
Number of pages
25
Pages from-to
1141-1165
UT code for WoS article
001583053900006
EID of the result in the Scopus database
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