本文主要介绍一下,用磁秤法测定岩石磁性的图解计算的问题,以及确定及向量合的问题。(一)li及lr向量合的确定目前许多野外队在计算岩石磁化强度I时,都假定感磁li与余磁lr的方向一致。在这种条件下岩石磁化强度等于感应磁化强度与剩余磁化强度的代数和。I=li+lr 但是实际上这种假设在一般情况下只是一种近似。而往往li与lr的方向有很大区别,特别是在铁矿区,这种方向的不一致 This article mainly introduces the problem of graph calculation of rock magnetism by magnetic scale and the problem of determination and vector combination. (A) Determination of li and lr vector combination At present, many field teams in the calculation of rock magnetization I, are assumed magnetic induction li and residual magnetic lr consistent. The rock magnetization under this condition is equal to the algebraic sum of the induced magnetization and the residual magnetization. I = li + lr But in fact this assumption is only an approximation in general. And li and lr tend to have a very different direction, especially in iron ore, this direction is inconsistent