气候变化领域集成服务门户(CCPortal): Brine grades in Andean salars: When basin size matters A review of the Lithium Triangle

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DOI	10.1016/j.earscirev.2021.103615
	Brine grades in Andean salars: When basin size matters A review of the Lithium Triangle
	López Steinmetz R.L.; Salvi S.
发表日期	2021
ISSN	00128252
卷号	217
英文摘要	The Lithium Triangle, a zone of the Central Andes characterized by the presence of lithium (Li)-rich salt pans within endorheic basins, has gained a worldwide reputation chiefly due to its exceptional Li brine-type deposits. We summarize scientific hydrochemical reports, totalizing a data set composed of 477 brine samples across the Lithium Triangle. Brine compositions are predominantly of the Cl− - SO42− / Na+ - Mg2+ type, however, major brine chemistry and Li+ grades vary across the Andean plateau. Brine compositions show some degree of geographic organization but no clear pattern was observed in the Li+ distribution across the plateau. We highlight an interdependency between the areal surfaces of salt pans and endorheic basins, which, related to Li concentrations, show the following linear proportions: 1) a 1:5 to 1:10 proportionality between the surfaces of basin catchments and those of salt pans; 2) a 2:1 proportionality between maximum and mean Li values; the latter implies that the equation mean Li ≈ ½ max Li can be employed to predict indicative mean grades during Li surveys in the Central Andes. In addition, the concentrations of Li can be addressed with respect to the area of salt pans and/or its basin catchments: it would be not only the largest, but also the oldest salars that are expected to hold the greatest Li concentrations. Finally, the area involving all salt pans in the Andean plateau is more than three times the size of what is known as the Lithium Triangle and has a curved crescent shape; we thus propose referring to it in the future as the Lithium Crescent. © 2021 Elsevier B.V.
关键词	Andes Endorheic basin Hydrochemistry Salt pan
英文关键词	concentration (composition); hydrochemistry; lithium; prediction; salt pan; size distribution; Andes
语种	英语
来源期刊	Earth Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/204089
作者单位	IDEVEA (CONICET - UTN), Av. GRAL. J.J. Urquiza 314, San Rafael, Mendoza 5600, Argentina; University of Toulouse, CNRS, GET, IRD, OMP, 14 Av. Edouard Belin, Toulouse, 31400, France
推荐引用方式 GB/T 7714	López Steinmetz R.L.,Salvi S.. Brine grades in Andean salars: When basin size matters A review of the Lithium Triangle[J],2021,217.
APA	López Steinmetz R.L.,&Salvi S..(2021).Brine grades in Andean salars: When basin size matters A review of the Lithium Triangle.Earth Science Reviews,217.
MLA	López Steinmetz R.L.,et al."Brine grades in Andean salars: When basin size matters A review of the Lithium Triangle".Earth Science Reviews 217(2021).