…An electric double layer is formed when ions accumulate at the boundary surface due to the electrical conduction of the earth, which is ionic conduction in formation water, whereas it is electronic conduction in metallic minerals. In the spontaneous potential method (SP method) that uses spontaneous potential (SP), the potential distribution observed on the surface of the earth in natural conditions is analyzed to estimate the underground. When water flows through the pores of the earth, a spatial shift occurs in the potential difference (zeta potential) at the solid-liquid boundary surface, and a streaming potential is observed. … *Some of the terminology that refers to the "SP Act" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…電気二重層は,大地の電気伝導が地層水中のイオン伝導であるのに対し,金属鉱物内は電子伝導であるため,通電により境界面にイオンがたまって形成される。自然電位(SP)を用いる自然電位法(SP法)では,自然の状態で地表で観測される電位分布を解析して地下を推定する。大地の孔隙中を水が流れるとき,固体‐液体の境界面における電位差(ゼータ電位)に空間的偏位が生じ,流動電位が観測される。… ※「SP 法」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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