…Generally, the deeper the groundwater, the slower its circulation speed, and most groundwater flows through the shallow layers before flowing out. In addition, deep groundwater on continents often contains salt, and some of it is fossil seawater that was present during the deposition of the strata. Groundwater temperature is determined by its depth and the relationship of exchange with surrounding groundwater. … *Some of the terminology that refers to "fossil seawater" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…一般に地下水は深層ほど循環速度が遅く,大部分の地下水は浅層部を流動して流出する。また大陸の深い地下水は塩分を含むものが多く,地層堆積時から含まれていた化石海水もある。地下水温は深さや周辺の地下水との交流関係で決まる。… ※「化石海水」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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