Rock Salt Wall - Ganenheki

Japanese: 岩塩壁 - がんえんへき
Rock Salt Wall - Ganenheki

...Salt domes in the Gulf of Mexico are particularly important structures in relation to the formation of oil fields. The external shapes of salt domes vary from salt pillows, which indicate the early stages of growth, to mushroom-shaped salt plugs and long salt walls, and their interiors have extremely complex structures as a result of the plastic flow of salt. Other types of diapirs include shale diapirs, granite diapirs, and gneiss domes, all of which are thought to be formed by density inversions occurring in the crust.

*Some of the terminology that refers to "rock salt walls" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…特にメキシコ湾地域のものは油田の形成と関係して重要な構造となっている。岩塩ドームの外形は,成長の初期段階を示す岩塩枕salt pillowといわれるものから,きのこ状に成長した岩塩プラグsalt plugや,長くつらなった岩塩壁salt wallなど多様なものがあり,その内部は岩塩の塑性流動の結果,きわめて複雑な構造となっている。岩塩ドーム以外のダイアピルとしては,ケツ岩ダイアピルshale diapir,花コウ岩ダイアピルgranite diapir,片麻岩ドームgneiss domeなどがあり,いずれも地殻中に発生する密度の逆転によって形成されるものと考えられている。…

※「岩塩壁」について言及している用語解説の一部を掲載しています。

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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