Late Paleozoic and Mesozoic basaltic dikes were recently identified in Southwestern Cameroon in a ca.200km corridor of NE-SW trend that includes the Cameroon Li
用燃烧碘量法测定硫酸钡,前人已经作过许多工作,但实际应用于矿物,岩石测定的资料较少。本试验根据火法冶金配料造渣的原理,采用价廉的CaF_2-siO_2-金属铜(或金属铁)助熔,取