关键词: 塔前&mdash, 赋春成矿带；画子山地区；地球物理特征研究

Abstract: The Huazishan area belongs to the Taqian-Fuchun Metallogenic Belt in the Northeastern part of Jiangxi Province. It has complicated geological structures but superior conditions for deep metallogeny. For the complicated geological conditions, a combination of a variety of geophysical methods can help detect deep geologic strcutures. The difference in physical properties of rocks is the basis for the application of geophysical methods. First, the physical analysis of rock specimens in the Huazishan area was carried out. Then, two (8-line and 11-line) gravity, magnetic and controllable source audio magnetotelluric integrated geophysical profiles were obtained from the Huazishan area. The integrated geophysical profiles are interpreted in combination with geological, physical and drilling data. The high gravity and low resistance anomaly zone is interpreted to result from mineralization, and the magnetic anomaly zone was likely caused by alteration. Finally, by analyzing the integrated geophysical profile, the distribution of high-density, high-magnetic and low-resistance high-polarity region in the underground is mapped, and the key area for prospecting is located in the southwest direction of the upper strata of the Niutouling Formation of the Wannian Group. The findings of this study will aid in future ore-deposit prospecting work in the Huazishan area.

Key words: Taqian-Fuchun Metallogenic Belt, Huazishan Area, geophysical characteristics