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Lithium Isotope Evidence for the Source of Potassium‐Rich Brine Solutes in the Jiangling Depression of Central China
Author(s) -
WANG Licheng,
LIU Chenglin,
WANG Chunlian,
XU Haiming,
ZHANG Yongming
Publication year - 2017
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/1755-6724.13092
Subject(s) - metallogeny , beijing , chinese academy of sciences , china , geology , geochemistry , archaeology , geography , pyrite , sphalerite
High-temperature and high-pressure brines have been discovered in the Jiangling Depression west of the Jianghan Basin, which contain K, Li, Rb and Cs of high economic grade. Till now, little attention has been paid to the potassium-rich brines, and it is uncertain to determine the source of solutes in the brines, such as K and Li. Previous studies have speculated that volcanism may attribute to the source of brine solutes. However, it is unclear whether basalt weathering or water-rock interaction is the main sources of potassium. This work conducted high-precision lithium isotope geochemical measurements on the newly discovered brines from drilled holes to reveal the relationship between high concentration of Li in the potassium-rich brines and basalts.