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实践证明,苏州西郊覆盖区,相对较强的磁异常可由磁铁矿引起,弱小和低缓磁异常也同磁铁矿或与磁铁矿伴生的金属矿有关。如小茅山铜矿,旺米山铁锌矿,潭家桥铜硫铁锌矿的磁异常不但是找铁矿的标志,也是找金属矿的标志。一、陈家桥(小茅山)磁异常该异常最大异常强度为1700γ,呈北西向分布,具有接触带磁场特征。由于该接触带发现有小茅山铅锌矿和石塘山铅锌矿以及铁矿,被列为有希望见矿的乙类磁异常。1966年布孔,1967年验证,发现含铜磁铁矿和磁黄铁矿,磁测计算埋深为64米,验证结果为51米。最新勘测结果表明该矿为浅而富的铜铅锌矿。到1985年底为止,矿石产品产值4000万元,上缴利润2000万元,相当于总投资的7倍。
Practice has proved that the western suburbs of Suzhou, the relatively strong magnetic anomalies can be caused by magnetite, weak and slow magnetic anomalies are also associated with magnetite or magnetite associated metallogenic. Such as Xiaoshan Mausoleum Copper Mine, Mongolian Hill Iron and Zinc Mine, Tanjiaqiao copper pyrites magnetic anomaly is not only a sign of looking for iron ore, but also find a sign of metal mines. First, Chen Bridge (Maoshan) magnetic anomaly The maximum anomalous anomaly intensity of 1700γ, showed a northwest distribution, with contact with the magnetic field characteristics. Because of the discovery of Xiaoshan lead-zinc mine and Shitangshan lead-zinc mine and iron ore in the contact zone, they were classified as Class B magnetic anomalies with promising prospecting. Buckingham 1966, 1967 verification, found that copper-containing magnetite and pyrrhotite, magnetic calculation of the depth of 64 meters, the verification results of 51 meters. The latest survey results show that the mine is shallow and rich copper-lead-zinc mine. By the end of 1985, the output value of ores reached 40 million yuan and the profits surrendered to 20 million yuan, equivalent to 7 times the total investment.