Dolomitization - dolomite (English spelling)

Japanese: ドロマイト化作用 - ドロマイトかさよう(英語表記)dolomitization
Dolomitization - dolomite (English spelling)
Dolomite is a process in which CaCO 3 in limestone is replaced by dolomite (CaMg(CO 3 ) 2) . Limestone can easily turn into dolostone when it reacts with seawater during deposition or when it is exposed to groundwater during diagenesis. It can also turn into dolostone when exposed to hydrothermal solutions, and this can be accompanied by deposits of lead, zinc, siderite, magnesite, barite, fluorite, mercury, and other minerals.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:
苦灰石化作用ともいう。石灰岩中のCaCO3がドロマイト(苦灰石あるいは白雲石)CaMg(CO3)2によって置換される現象をいう。石灰岩は堆積時に海水と反応したり,続成作用の段階で地下水の作用を受けたりして,容易にドロストーンに変化する。また,熱水溶液の作用をうけてドロストーンになることもあり,その際には鉛,亜鉛,リョウ鉄鉱,リョウ苦土鉱(マグネサイト),重晶石,蛍石,水銀などの鉱床を伴うことがある。

出典 株式会社平凡社世界大百科事典 第2版について 情報

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