The Application Of Time Domain IP To The Exploring Of Water Resources And Mine

Time domain inducedpolarization (TDIP)method was commonly served as a geophysical method to probe the earth, and a far-reaching application to detect if there register the water resource and mineral materials. An analysis need to be made on the induced polarization parameters with regard to different earth conditions. I took into a further consideration the problems standing in the way of the practice of induced polarization parameters in exploring the resources. The research and its fruits are involved in as follows:1. The study of negative apparentpolarizability in measuring byTime domain IP:Considering the negative apparentpolarizability obtained in field survey, the negative apparentpolarizability was proved to be justified and reasonable shown in the laboratory-based flume experiment simulating the geology of targeted area. Guided by the result from the water tank modeling of the horizontal copperplate, I make a qualitative analysis theoryand explanation on the negative apparentpolarizability in the way that the targeted time in the discharging process in the secondary field of copperplate was regarded as electrical field superposed by a certain number of electric dipole. A feasible method was applied to detect if the negative apparentpolarizability is reliable following the summary of factors leading to the negative apparentpolarizability in the middle of experiencing topography and geology of all kind.2. Research on assessing the reliability of two-dimensional inversion in Time domain IP: I summed up the results from the inversionby its reliability with considering the concrete cases in the two-dimensional inversion.3. The application of Time domain IP in surveying the water resources: this article can provide a better reference for probing the water resources in an area with hydrogeology or alike, because of the improvement of precision to locate the aquifer in deeper ground, which was resulted from a further study of the connection between the aqueous rocks and electrical conduction on the one hand,and induced polarization effect on the other, and the explanation of geophysics with the two-dimensional inversion. All of which was based on water-exploring project conducted in drought-stricken area in Xinhe Basin located in inner Mongolia, and the exposure of bed rock in the southern Basin (the primary strata is mainly Archean) and the special geology in mud rocks covering the northern Basin (the primary strata is mainly Neogene and Paleogene).4. The application of Time domain IP to detect the mineral resources: details the application of Time domain IP to locate the mine in two typical working areas.The areawherethe surrounding rock has weak IP signal in: The drilling turns out that the abnormally high polarization is directly proportioned in space to multi-layer mine of zinc and tungsten, it is available for positioning roughly where the mine in deeper ground is with the help of the inversion, and also, we can determine he mine-bearing prospective area with the aid of abnormal polarization andmineralized altered ground, all of which was conducted in mine enriched in sulfur, zinc andtungsten in bordered yellow banner region , inner Mongolia without disturbing geological body.The areawherethe surrounding rock has strongIP signal in: One mine in Horqin region, inner Mongolia, presenting in wide range of carbon-contained rocks andpyrites, and the IP effect of targeted geological bodies were overshadowed by strong-signal resulted in the disturbing bodies. Circling the abnormal region based on the mineralized alteration zone, applying the IP sounding and the profile in CSAMT.Comparing the results from the inversion of resistivity with the profile of prospecting line, I perceived that most of thick and enormous mine was situated in the low-resistant strip of inversion section, and the mine extend along the strip. To some extent, the distribution of electrical properties did demonstrate how does the structure of earth changes in turning into the mine. Putting together all the leads out of the method, we can mark the indirect place to find out the mine with the low-resistant strip in inversion section.