Boron Isotope Geochemistry of the Lakkor Co Salt Lake (Tibet) and Its Geological Significance

The origin of boron in modern salt lakes has long been a controversial subject. This study focuses on the boron geochemistry of Lakkor Co salt lake, located on the Shiquanhe-Lakkor Co-Yongzhu-Jiali Ophiolite Mélange Zone (SYMZ). Lakkor Co is one of the main boron-rich salt lakes in the Tibetan plate...

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Main Authors: B. K. Li, H. D. Cheng, H. Z. Ma
Format: Article
Language:English
Published: Wiley 2022-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2022/3724800
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author B. K. Li
H. D. Cheng
H. Z. Ma
author_facet B. K. Li
H. D. Cheng
H. Z. Ma
author_sort B. K. Li
collection DOAJ
description The origin of boron in modern salt lakes has long been a controversial subject. This study focuses on the boron geochemistry of Lakkor Co salt lake, located on the Shiquanhe-Lakkor Co-Yongzhu-Jiali Ophiolite Mélange Zone (SYMZ). Lakkor Co is one of the main boron-rich salt lakes in the Tibetan plateau where the boron concentration ranges from 401 to 849 mg L-1. The boron isotope value (δ11B) of the carbonate deposit within the Lakkor Co region is -28.08‰. The boron isotope value of the Somme river decreases from -9.97‰ to -11.15‰ after it flows through the carbonate deposit region, indicating that the carbonate deposit in this region releases boron, which has a more negative isotope value. However, the boron isotope value of Bai Kok river increases from -15.63‰ to -13.76‰, when it flows through the Quaternary clay region in Ganga Co, indicating that the carbonate deposit undergoes a process of boron adsorption. It can be concluded that the Quaternary carbonate deposits may be a source of boron and also serve as a temporary boron reservoir, thus playing an important role in the formation of modern salt lake boron deposits in Tibet.
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spelling doaj-art-50b2cf6a7a944eb2ae1409bccfb0c5d42025-08-20T02:05:45ZengWileyGeofluids1468-81232022-01-01202210.1155/2022/3724800Boron Isotope Geochemistry of the Lakkor Co Salt Lake (Tibet) and Its Geological SignificanceB. K. Li0H. D. Cheng1H. Z. Ma2Qinghai Provincial Key Laboratory of Geology and Environment of Salt LakesUniversity of the Chinese Academy of SciencesQinghai Provincial Key Laboratory of Geology and Environment of Salt LakesThe origin of boron in modern salt lakes has long been a controversial subject. This study focuses on the boron geochemistry of Lakkor Co salt lake, located on the Shiquanhe-Lakkor Co-Yongzhu-Jiali Ophiolite Mélange Zone (SYMZ). Lakkor Co is one of the main boron-rich salt lakes in the Tibetan plateau where the boron concentration ranges from 401 to 849 mg L-1. The boron isotope value (δ11B) of the carbonate deposit within the Lakkor Co region is -28.08‰. The boron isotope value of the Somme river decreases from -9.97‰ to -11.15‰ after it flows through the carbonate deposit region, indicating that the carbonate deposit in this region releases boron, which has a more negative isotope value. However, the boron isotope value of Bai Kok river increases from -15.63‰ to -13.76‰, when it flows through the Quaternary clay region in Ganga Co, indicating that the carbonate deposit undergoes a process of boron adsorption. It can be concluded that the Quaternary carbonate deposits may be a source of boron and also serve as a temporary boron reservoir, thus playing an important role in the formation of modern salt lake boron deposits in Tibet.http://dx.doi.org/10.1155/2022/3724800
spellingShingle B. K. Li
H. D. Cheng
H. Z. Ma
Boron Isotope Geochemistry of the Lakkor Co Salt Lake (Tibet) and Its Geological Significance
Geofluids
title Boron Isotope Geochemistry of the Lakkor Co Salt Lake (Tibet) and Its Geological Significance
title_full Boron Isotope Geochemistry of the Lakkor Co Salt Lake (Tibet) and Its Geological Significance
title_fullStr Boron Isotope Geochemistry of the Lakkor Co Salt Lake (Tibet) and Its Geological Significance
title_full_unstemmed Boron Isotope Geochemistry of the Lakkor Co Salt Lake (Tibet) and Its Geological Significance
title_short Boron Isotope Geochemistry of the Lakkor Co Salt Lake (Tibet) and Its Geological Significance
title_sort boron isotope geochemistry of the lakkor co salt lake tibet and its geological significance
url http://dx.doi.org/10.1155/2022/3724800
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AT hdcheng boronisotopegeochemistryofthelakkorcosaltlaketibetanditsgeologicalsignificance
AT hzma boronisotopegeochemistryofthelakkorcosaltlaketibetanditsgeologicalsignificance