Isotope geochemistry of borate deposit

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  • YAMAOKA Kyoko
    Geological Survey of Japan, AIST, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8567, Japan

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  • 蒸発岩型ホウ素鉱床の同位体地球化学
  • ジョウハツ ガンケイ ホウソ コウショウ ノ ドウイタイ チキュウ カガク

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Description

Evaporite borates are the largest industrial source of boron in the world. The major productions come from the Neogene lacustrine borate deposits in western Turkey and California, USA. The formation of large borate deposits is closely related to 1) magmatic processes to form volcanic rocks enriched in boron, 2) leaching of boron from rocks by hydrothermal activity, and 3) evaporation of playa lakes in a dry climate. Boron isotope could be a useful tool to identify the origin of boron and to constrain the physicochemical conditions (e.g., pH) during borate precipitation. This article reviews the studies on boron isotope geochemistry of borate deposits. The future possibility of lithium production from borate deposits is also presented.

Journal

  • Shigen-Chishitsu

    Shigen-Chishitsu 64 (3), 117-125, 2014

    The Society of Resource Geology

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