Electrical conductivity measurements of hydrous mineral and hydrous rock

变质岩电导率测量作为温度函数的研究突出了与脱水相关的电导率变化的重要性。我们观察了无水岩石和含水角闪岩的电导率变化。我们的实验结果表明，脱水发生，并且在变质温度以上存在非线性变化。为了评估观察到的脱水后电导率的变化，我们进行了数值计算。计算结果表明，岩石体积电导率加纯水不能解释地壳脱水时反应岩石的电导率值。另外，0.1摩尔NaCl溶液的数据与角闪岩的数据一致。此外，我们还尝试建立了含水岩石的电导率模型。

A study of electrical conductivity measurements of metamorphic rocks as a function of temperature highlight the importance of conductivity variations associated with dehydration. We observed conductivity changes for anhydrous rocks and hydrous amphibolites. Our experimental results reveal that dehydration takes place and there is a non-linear variation above metamorphic temperatures. To evaluate the observed change in conductivity after dehydration, a numerical calculation was attempted. The calculation results showed the bulk conductivity of rock plus pure water cannot account for conductivity values of reacted rocks if the crust dehydrates. Alternatively, data of 0.1 molal NaCl solutions are consistent with those of amphibolites. Furthermore, we have tried to construct electrical conductivity model of hydrous rock.