归一化总水平导数垂向导数法在位场数据解释中的应用

The application of normalized total horizontal derivative vertical derivative method to the interpretation of in situ data

归一化总水平导数垂向导数方法是由一种结合水平导数与垂向导数的一种位场解释方法,通过计算总水平导数的垂向特征来突出岩体或者地质体边界的线性构造。文中以宁夏中卫市香山地区金属矿产和非金属矿产分布区为研究区,利用这种方法能够清楚地区分岩体与地质体的平面范围,通过极大值的位置判断岩体的边界位置和水平分布。结果表明,利用归一化总水平导数垂向导数的方法来定性解释岩体分布范围具有较好的应用效果。

The normalized vertical derivative of the total horizontal derivative method is a potential field interpretation method based on combination of horizontal and vertical derivatives,highlighting linear structure by calculating the total horizontal derivative of the vertical features or rock geological boundary.With the metal ore resources in Xiangshan District of Zhongwei City in Ningxia and the distribution of nonmetallic mineral resources areas as the study objects,the utilization of this method can distinguish between rock mass and geological plane range clearly,and determine the location of the maximum value of the rock mass through the boundary position and level distribution.The results show that the method of normalizing the total horizontal derivative and vertical derivative can qualitatively explain the distribution range of rock mass and thus has fairly good application effect.