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Ⅱ、使实测曲线复杂化的因素上面我们讨论的理论曲线的特点及关于矿体倾角的计算,都是根据理论公式计算得来的。在进行理论计算时,为了简化演算手段,使最后所得到的公式具有简单的形状而便于应用,往往把实际情况理想化。磁法勘探中所用公式除了每个公式的特定假定外(所谓特定假定如推导板状矿体的公式时假定其沿走向长度为无穷),还有一些共同的基本假定,这些假定就是:第一、岩体或矿体是均匀磁化的;第二、不考虑矿体形状所引起的退磁效应;第三、当有剩余磁化存在时,我们认为剩余磁化强度的方向和感应磁化强度的方向一致:
Ⅱ, the factors that complicate the measured curve The characteristics of the theoretical curve we discussed above and the calculation of the dip of the ore body are calculated according to the theoretical formula. In the theoretical calculations, in order to simplify the calculation means, the resulting formula has a simple shape and easy to use, the ideal situation is often idealized. The formula used in magnetic exploration has some common basic assumptions besides the specific assumptions of each formula (the so-called specific assumptions are assumed to be infinite in length along the strike as derived from plate-shaped orebodies): First , The rock mass or ore body is uniformly magnetized; secondly, the demagnetization effect caused by the shape of the ore body is not taken into account; thirdly, when the residual magnetization exists, we think that the direction of the residual magnetization is consistent with the direction of the induced magnetization: