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We aim to assist you, our valued mining enthusiasts, in mineral exploration using geophysical methods. Specifically, in areas where natural stone quarries such as marble and travertine, and metallic minerals (chromium, iron, copper, etc.) are planned to be opened, we can collect detailed information about the block size, dip, and orientation of the minerals, and the presence of fine hairline fractures and cracks in the blocks that can be extracted, using geophysical resistivity, geophysical gravity, and geophysical radar (GPR) methods. Based on this data, we can determine the appropriate drilling points, estimate the reserves of the area through the correlation of drilling and resistivity results, and investigate its economic viability. Evaluations based on the measurements obtained have yielded accurate results up to 80%. The goal here is to compare drilling results with geophysical survey results to conduct the survey of the area with the least possible exploration cost.

GEOPHYSICAL GRAVITY METHOD
The gravity method is one of the fundamental geophysical methods. Due to the inhomogeneity of the subsurface and the presence of rocks of varying densities, changes occur in the Earth's gravitational acceleration "g". Measuring these changes on the surface with special instruments and evaluating these values ​​constitutes the gravity method. In short, the gravity method involves measuring the changes in gravitational acceleration "g" caused by different densities in the subsurface and evaluating these measured values ​​to obtain information about the minerals or geological structures being explored underground.

GEOPHYSICAL RESISTIVITY METHOD
The resistivity method is one of the most widely used geophysical methods in geoelectric prospecting. It is an economical, fast, and commonly used method, particularly in clarifying problems in mining, petroleum, water, and geotechnical engineering. The working principle of the resistivity method is to measure the potential difference across two electrodes when a current is applied to the ground through two electrodes. The aim of the resistivity method is to determine the true resistivity. Since the subsurface is theoretically homogeneous, the apparent resistivity (PA) is calculated. By varying the electrode spacing, the thicknesses and true resistivity values ​​of horizontal and near-horizontal layers can be calculated from the apparent resistivity values ​​of the rocks. In the resistivity method, the depth at which the current can effectively penetrate the ground depends on the distance between the electrodes, the relative thickness of the subsurface layers, and the shape, size, and resistivity of the subsurface bodies. The Schlumberger expansion system is used as the electrode configuration.

GEOPHYSICAL RADAR (GPR) METHOD
The geophysical GPR method works by sending electromagnetic (EM) waves, or more precisely, microwave-sized radar waves, into the subsurface. These waves are transmitted by transmitting antennas and then collected from the ground by receiving antennas. The differences between the transmitted and collected waves allow for the mapping of the subsurface. GPR is a method used to map geological structures, strata, groundwater, moist-clay zones, bedrock, and minerals underground.

As is known, the majority of our valued miners suffer significant losses as a result of mines being opened without thorough surveys in the mining sector. Providing you, our valued miners, with detailed information about the mines to be opened and giving you an idea of ​​how they can be economically evaluated is one of the most important duties of us geophysics engineers.

We are very happy and proud to have contributed to the most economical utilization of our national underground resources.