摘要
本文对福建大田同一层位的三个硫—多金属矿床(点)的主要矿物磁黄铁矿的特征进行研究,确定磁黄铁矿有六方和单斜两个相。它们的X光衍射、磁性、显微硬度与铬酸的浸蚀反应等性质均有明显差別,确定大田上蔡矿区前锋矿段以六方相为主,而龙凤场矿区和上京矿区以单斜相为主。前者形成温度较高,后者形成温度较低。并以龙凤场矿区为例,讨论磁黄铁矿系沉积成因的黄铁矿经岩浆热液或变质热液改造而成。
The present paper is invoed in research on main mineral pyrrhotite characteristics of three polymetallic sulfide ore deposit located in same stratalhorizon in Datian County, Fujian province. It has been found that at the county there exist two phases of pyrrhotite——hexagonal and monocline. Their characters are clearly different in X-ray diffraction, magnetic behavior, microscopic hardness, etching reaction with H_2C_rO_4. Most of pyrrhotites are of Shangcai ore district, while most of them, monocline in Longfeng Chang ore district and Shangjing ore district. Genetic temperatures of the former are higher than the latter. Taking Longfeng Chang ore district as a typical case. The writer has believed that pyrrhotite is transformed by deposited pyrite by means of magmatic hydrothermal solution or metamorphic hydrothermal solution.
出处
《福建地质》
1989年第2期140-147,159-160,共8页
Geology of Fujian
