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地球物理勘探在众多岩浆铜镍硫化物矿床的发现中起着重要的作用.相对于围岩,硫化物矿石在电学、密度和磁化率等物理性质方面有着显著的差异性,产生高重力、高磁力、高极化和低电阻的地球物理异常,是岩浆铜镍硫化物矿床传统地球物理勘探方法的理论基础.造山带中铜镍硫化物矿床通常具有小岩体成大矿的特征,以中亚造山带的东天山和喀拉通克地区最为突出.这类矿床通常表现出复杂的岩体形态、产状、岩相构成、赋矿岩相和矿体空间展布,给传统地球物理勘查工作提出挑战.国外铜镍矿最大探测深度已达到4000m,最大开采深度也达到2450m,而我国同类矿床分别只有1600m和900m左右,亟待提高.以高分辨率浅层地震波反射、地-井瞬变电磁法、井中重力勘探和航空电磁法为代表的地球物理新进展则为这一问题带来新思路,可能代表着铜镍硫化物矿床大深度精细勘探的发展趋势.
Geophysical exploration plays an important role in the discovery of numerous magmatic copper-nickel-sulfide deposits, which have significant differences in physical properties such as electrical, density and magnetic susceptibility relative to the surrounding rock, resulting in high gravity and high Magnetism, high polarization and low resistance geophysical anomalies are the theoretical basis of traditional geophysical prospecting methods for magmatic copper-nickel-sulfide deposits.The copper-nickel sulfide deposits in orogenic belts generally have the characteristics of small-large ore bodies, The East Tianshan and the Kalatongke areas are the most prominent in the sub-orogenic belt.These deposits usually show complicated rock mass morphology, facies, lithofacies, ore facies and orebody spatial distribution, which give traditional geophysical prospecting The challenge of the work is that the maximum depth of exploration for copper and nickel ore in foreign countries has reached 4000m and the maximum exploitation depth has also reached 2450m, while the similar deposits in our country are only about 1600m and 900m respectively, which needs to be improved urgently.With high resolution shallow seismic reflection, New progress in geophysics, such as electromagnetic method, gravity survey and aeromagnetic method, brought new ideas to this issue and may represent the great depth and fineness of Cu-Ni sulfide deposits Exploration trends.