IDENTIFICATION OF ORE MINERALIZATION AND MERCURY ZONES USING GEOELECTRICAL RESISTIVITY METHOD WITH DIPOLE-DIPOLE AND SCHLUMBERGER ARRAY IN MINING FIELD, KULONPROGO, YOGYAKARTA, INDONESIA

Abstract

The presence of minerals ore especially the presence of mercury is the important
thing to be noticed in the mining field. Minerals ore have high economical value in
mining industry, but mercury can be a pollution in soil. Geolectrical Resistivity
methods with dipole-dipole and schlumberger array was conducted to delineate the
presence of minerals in the each layer of soil. The methods concern in the zone of
minerals ore and mercury in the research area. These methods inject the current in
the subsurface. The two current electrodes and two potential electrodes measure
the current and potential difference of each layer of subsurface. Every rocks in
subsurface have electrical properties depend on containing of minerals. In this
case, the resistivity of mineral ore zone is high ( > 100 Ωm ) and can be obtained in
deeper depth and mercury zone has lower resistivity (50 Ωm – 60 Ωm ).
Keywords: Resistivity, Mineral Ore, Mercury, Dipole-dipole Array, Schlumberger
Array