机构地区: 中山大学地球科学系
出 处: 《地质科技情报》 1998年第S1期30-35,共6页
摘 要: 对湖南幕阜山、云南哀牢山、新疆可可托海及福建西坑4个地区的伟晶岩研究表明:这些伟晶岩矿物的熔融包裹体和熔流包裹体均一温度为450~1140°C,气—液包裹体均一温度为180~400°C,不同地区包裹体类型和均一温度有所差别。气液包裹体中的主要液相组分有Ca2+,K+,Na+,Mg2+,Fe3+,HCO-3,SO2-4,Cl-,F-以及C2H6,不同的伟晶岩这些组分的相对含量有明显不同,表明这些伟晶岩具有不同的成因。 The study on the pegmatites from Mufushan,Hunan Province,Ailaoshan,Yunnan Province,Keketuohai,Xinjiang Province and Xikeng,Fujian Province shows that the homogenization temperature(th)of melt and meltfluid inclusions range over 450-1 140°C,and of gasliquid inclusions over 180-400°C;but in different areas there are some differences in both the type of inclusion and the range of th.And the main components are Ca2+,K+,Na+,Mg2+,Fe3+,HCO-3,SO2-4,Cl-,F- and C2H6 in the gasliquid inclusions,and their content order changes obviously in different pegmatites.It suggests that these pegmatites belong to different geneses respectively