论文部分内容阅读
两广交界处的岑溪二叠纪岛弧型玄武岩是华南地区(狭义)首次报道的、有较为可靠同位素年龄的晚古生代活动大陆边缘型玄武岩.对该地区玄武岩和细碧角斑岩的主量元素、微量元素(包括稀土元素)和同位素年代学进行了综合研究,论证了岑溪细碧角斑岩建造是与古特提斯域大陆边缘岛弧或弧间盆地有关的二叠纪火山喷发产物.
Cenxi Permian island arc basalts at the junction of Guangdong and Guangxi are the Late Paleozoic continental margin basalts reported for the first time in South China (narrowly defined), and have more reliable isotopic ages. , Trace elements (including rare earth elements) and isotopic chronology. The authors conclude that the construction of the Cenixipeijuan porphyry in Cenxi is a Permian volcanic eruption associated with the continental margin arc or interbasic basin in the Guteethisian.