摘要
根据多体系相图的分割原理及拼合方法,提出了一种计算和构筑多体系相图的方法。利用这一方法具体地构筑了描述花岗岩类蚀变过程的CaO—Al_2O_3—SiO_2—KF—HF—H_2O体系的μ_(KF)—μ_(HF)相图。在这一图解基础上对花岗岩类中蚀变分带的某些机制进行了讨论。
According to the division theory and combination method for multisystem phase diagrams, the author presents a new method to calculate and construct multisystem phase diagrams in this paper. The example of its practical application is demonstrated in constructing the μKF-μHF phase diagrams of acidic rocks in the CaO-Al2O3-SiO2-KF-HF-H2O system. Some alteration processes and alteration mineral equilibria in fluorine-rich rocks (granite, greisen, pegmatite, rhyolite and porphyry) are briefly discussed in terms of the μKF-μHF diagrams.
出处
《地球化学》
CAS
CSCD
北大核心
1990年第2期175-182,共8页
Geochimica