가곡광산 연-아연 광체의 광대역유도분극 반응 특성 = Spectral Induced Polarization Response Charaterization of Pb-Zn Ore Bodies at the Gagok mine

다국어 초록 (Multilingual Abstract)

Gagok Mine, which is skarn deposits, includes sulfide minerals such as sphalerite, galena, chalcopyrite, andpyrrhotite. To explore these minerals, spectral induced polarization (SIP) is relatively effective compared to othergeophysical exploration methods because there is a strong IP effect caused by electrode polarization. In the SIP, thechargeability related to sulfide mineral contents and the time constant related to the grain size of the minerals are obtained. For this reason, we aim to compare difference in the mineralized characteristics between two orebodies in the GagokMine by using the chargeability and the time constant. For this study, we sampled ores from the south of Wolgok orebodyand the north of Sungok orebody. In order to recognize the mineralization characteristics, the metal content of the sampleswas measured by a potable XRF and the SIP data of the samples were acquired by using a laboratory SIP measurementsystem. As a result, the metals in the samples such as Pb, Zn, Cu, and Fe were detected by the portable XRFmeasurement. In particular, the Fe and Zn contents were far higher than the other metals. The Fe and the Zn were causedby the sphalerite and the pyrrhotite through microscopy. The Wolgok orebody had higher sulfide mineral contents thanthe Sungok orebody and the result corresponded with the chargeability result. However, we considered that the Sungokorebody had a larger sulfide mineral grain size than the Wolgok orebody because the time constant of the Sungok orebodywas larger.

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