小比例尺的重力资料,除了作为探讨宏观地质构造的重要依据外,在成矿预测、确定找矿靶区方面,同样能够发挥显著的作用. 浙江省1∶50万区域重力成果的一个新收获,突出地表现在盖层构造反映相当清楚.规模在百余平方公里以上的一些地质构造,多有异常显示.仔细分析1∶50万布格重力异常图,可以发现一个重要的现象:已知矿种(金银、铜、铅锌、铁、钼、铀)不同成因类型的大、中型矿床,都产在环状重力异常的内部或其周边上.这就有力地说明,环状剩余重力异常实质上是矿区成矿地质背景(控矿构造或矿源层)的反映.很明显,把这种类型的异常作为划分成矿远景区的基础,无疑是妥当的.从环状异常入手普查找矿,必将缩小靶区,并缩短找矿周期. In addition to serving as an important basis for exploring macro-geological structures, the small-scale gravity data can also play a significant role in mineralization prediction and ore prospecting target determination.A new harvest of 1,500,000 regional gravity achievements in Zhejiang Province, Outstandingly reflected in the cover structure is quite clear reflection.Of the scale of more than 100 square kilometers in some of the geological structure, there are more anomalies.Consulting to a detailed analysis of 1: 5000000 Bouguer gravity anomaly, you can find an important phenomenon: Known minerals (Gold, silver, copper, lead, zinc, iron, molybdenum, uranium) of different genetic types of large and medium-sized deposits, are produced in the annular gravity anomaly or its periphery .This effectively shows that the annular residual gravity anomalies Is a reflection of the ore-forming geological background (ore-controlling structure or source rock layer) .It is undoubtedly appropriate to take this type of anomalies as the basis for the division of mineralization prospect.From the circular anomaly, Will narrow the target area, and shorten the prospecting cycle.