关于河北矾山铁磷矿床的成因问题,目前有各种不同意见。以爆裂法测得的磷灰石的形成温度均在350—460℃之间(牟保磊等,1978、1979,未刊),但还未曾用其他方法核对过。本文拟通过热力学方法计算含矿岩石中透辉石-斜顽辉石和透辉石-磁铁矿的平衡温度,以与爆裂法所测得的结果进行比较,并为研究此矿床的成因提供一点材料。 There are various opinions on the cause of the formation of Hebei Fanshan iron phosphate deposit. The formation temperature of apatite measured by the burst method is between 350-460 ℃ (Mu Baolei et al., 1978, 1979, unpublished), but has not been checked by other methods. This paper intends to calculate the equilibrium temperature of diopside-tildeunds and diopside-magnetites in ore-bearing rocks by thermodynamic methods to compare them with the results from the burst method and to provide a little bit of insight into the genesis of this deposit material.