THE APPLICATION OF PARTIAL MELTING MODEL TO THE STUDY ON PETROGENESIS OF SOME SPECIES OF GRANITIC RO

• 作 者: 凌雯 李峰 黎彤 陈道公 顾靖飞
• 机 构: University of Science and Technology of China, Hefeirrrrrrrrn,University of Science and Tec
• 出 处: Science in China,Ser.B
• 发表日期: 1988年02期
• 关键词: granite melting rock discussion brief crustal shale basalt latter affecting

71 REE data of 30 granitic rock species in southern China were collected. According tothe equilibrium partial melting model, the mineralogical and chemical compositions of theresidual phases as well as the melting degrees were calculated, which led to the determina-tion of the source materials of these granitic rock. The result shows that there are two typesof petrogenetic rocks among them, i.e. crustal granite and mixed granite. And the mixedratios were obtained for the latter case. A brief discussion on the factors affecting the REE patterns is also made.

According to the tothe equilibrium partial melting model, the mineralogical and chemical compositions of the residual phases as well as the melting degrees were calculated, which led to the determina-tion of the source materials of The results shows that there are two types of petrogenetic rocks among them, ie crustal granite and mixed granites. And the mixedratios were obtained for the latter case. A brief discussion on the factors affecting the REE patterns is also made.