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Assessing Li and other leachable geochemical proxies for paleo-salinity in lake sediments from the Mono Basin, CA (USA) |
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| Authors: | Rahul Sahajpal Saugata Datta Sidney R Hemming |
| Institution: | a School of Earth and Environmental Sciences, Queens College, Flushing, NY 11367, United States b Center for Acceleratory Mass Spectrometry, Lawrence Livermore National Laboratory, Livermore, CA 94551, United States c Department of Geology, Kansas State University, Manhattan, KS 66506-3201, United States d Lamont-Doherty Earth Observatory of Columbia University, Rt. 9W, Palisades, NY 10964, United States |
| Abstract: | Regional climate-driven hydrological changes are accompanied by salinity changes in closed basin lakes. We have investigated acid leachable Li, along with other leachable ions including Mg, Ca and Sr, as geochemical proxies of salinity in lake sediments in the Mono Basin, California. All the elements in the acid leachable suite show a strong correlation with paleo-lake level estimates based on physical and stratigraphic evidence. The CaCO3 content of lake sediments, which has been shown to be a reliable proxy for lake level changes in the Mono basin and the adjoining Owens Lake basin, corresponds well with our acid-leachable proxy data. |
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