Geoelectric is a geophysical method that studies the nature of power in the earth and how to detect it at the earth's surface. In this regard include the potential measurements, flow and electromagnetic fields that occur either naturally or due to current injection into the earth. There are several kinds of geoelectric methods, among others: self-potential method, Telluric currents, magnetoteluric, electromagnetic, IP (Induced Polarization), resistivity (resistivity) and others. In this discussion specifically discussed geoelectric resistivity method. http://en.wikipedia.org/wiki/Electrical_resistivity_tomography
On the geoelectric resistivity method, the electric current is injected into the earth through two electrodes arus.Kemudian potential difference that occurs is measured through two potential electrodes. From the results of current and potential difference measurements for each different electrode distance can then be lowered resistivity variations in the price of each layer below the measuring point (sounding points). This method is more effective when used for exploration that are shallow, rarely provide information layer at a depth of more than 1000 feet or 1500 feet. Therefore, this method is rarely used for exploration munyak but more widely used in the fields of engineering geology such as the determination of the depth of the bedrock, the search for water reservoir, are also used in geothermal exploration.
Based on the location of the (config) electrodes currents, known several types of resistivity resistivity methods, among others:
a. methods Schumberger
b. Wenner method
c. Methods Dipole - Dipole
Supported by: jual alat geolistrik