Abstract：The large-scale magnetic measurement for the prediction of gold blind orebodies in the depth and lots of field magnetic measurement tests and engineering verifications demonstrate that, during the formation of gold deposit, the thermal energy produced by faulted structure cutting through the depth and the multi-periodic magmatic invasion as well as the movement of the mantle and faulting resulted in the remelting, migration and chilling of the gold-rich wall rocks and thus caused the remigration, redistribution and re-concentration of gold, leading to the decoloration and demagnetization of magnetic rocks along the structural zone and the formation of regional negative magnetic anomaly area. Using the high precision magnetic measurement method and utilizing the intensity and scale of the magnetic anomaly, we can delineate the gold-related segment characterized by relatively strong mineralization and alteration. With some practical examples, the authors describe the concrete working method for applying magnetic measurement method to delineating gold-related mineralization enrichment segment, with the purpose of making the magnetic measurement method play an important role in search for gold-related mineralization-alteration zone.
申随水, 李治时, 杨守渠. 小秦岭地区大比例尺磁测方法找金效果[J]. 物探与化探, 2014, 38(4): 635-640.
SHEN Sui-Shui, LI Zhi-Shi, YANG Shou-Qu. The effect of applying large scale magnetic measurement method to the prospecting for gold deposits in Xiao Qinling Mountains area. Geophysical and Geochemical Exploration, 2014, 38(4): 635-640.
