Neptunism - Suiseisetsu (English spelling)

Japanese: 水成説 - すいせいせつ（英語表記）neptunism

Also known as sedimentary theory. The theory that all rocks are formed by precipitation from primordial seawater. It has been advocated since ancient times, and in the 18th century, A. Werner of Germany proposed that granite and basalt were also sedimentary rocks, and is said to be the representative of the sedimentary theory. This theory follows the theory of drastic changes in nature such as natural disasters, and disappeared in the 19th century with the emergence of the igneous theory, which began when J. Hutton of England recognized granite and basalt as igneous rocks at roughly the same time.

Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information

Japanese:

水成論ともいう。すべての岩石が原始の海水から沈殿してできたという説。古来唱えられ，18世紀にドイツの A.ウェルナーが花崗岩や玄武岩も水成岩であるとし，水成説の代表者といわれる。この説は天変地異などの自然界の激変説を踏襲したもので，イギリスの J.ハットンがほぼ同時代に花崗岩，玄武岩を火成岩と認めたのに始る火成説の出現によって，19世紀には姿を消した。

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