可控源音频大地电磁法在变质岩地区找水一例

Water exploration by CSAMT method in metamorphic rock area

可控源音频大地电磁法(CSAMT)以其勘探深度大、分辨率高等特点,广泛应用于地下水资源调查、金属矿和石油勘查等领域。应用该方法在江苏东海超高压变质带上寻找地下水,取得了很好的地质效果。

Controlled source audio-frequency magnetotellurics（CSAMT） is a high resolution electromagnetic sounding technique which uses a fixed grounded dipole or horizontal loop as an artificial signal source. CSAMT method was characteristic of big exploration depth and high resolution and widely used in the fields of ground water resource investigation, exploration of metallic minerals and oil resources. Ground water exploration practice by CSAMT was presented in the text to show a fine result in ultra-pressure metamorphic zone in Donghai of Jiangsu Province.