摘要
作者通过对DS锡锌矿床岩矿石磁性特征值之一的Q(Jr/Ji)值研究,总结了该矿床的锡锌矿体与岩矿石磁性关系的几个规律:即磁异常与矿体关系密切;主要磁源层为含磁黄铁矿的角岩与多金属矿石;矿体在空间上主要分布于磁性中等(J=2000～4000×10^(-6)CGSM)及Q值较小(Q≤5)地段。此外,还探讨锡、锌矿的成矿机理。
Based on studies of the Q values (Jr/ Ji), the magnetic characteristic values of rocks and ores of the DS Sn-Zn deposit, the author has drawn several conclusions: magnetic anomalies are closely related to the orebodies; the magnetic source is mainly composed of pyrrhotite-bearing hornfel and polymetallic ores; the orebodies mainly occur where medium intensity of magnetism ( J =2000-4000×10^(-6) CGSM) and relatively low Q values (< 5) are shown. In this paper the ore-forming mechanism of the Sn-Zn deposit is also discussed.
关键词
锡锌矿床
岩石
矿石
磁性特征值(Q)
磁异常
磁源层
成矿机理
Sn-Zn deposit, rock, ore, magnetic characteristic value, magnetic anomaly, magnetic source, ore-forming mechanism
