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在吉林省地质矿产局区域地质矿产调查所和长春地质学院进行一比二十万区域地质调查工作的基础上,吉林地矿局区调所和南京地质古生物研究所倡导与工作,特别是后期南京地古所组织的研究,吉林省浑江大阳岔寒武——奥陶系界线剖面,于一九八五年七月十四日到十七日在加拿大卡尔加里召开的国际寒武——奥陶系界线工作组全会上,被列为全球两大寒武——奥陶系界线候选层型剖面
On the basis of one to two hundred thousand regional geological survey conducted by the Geological and Mineral Resources Investigation Bureau of Jilin Bureau of Geology and Mineral Resources and the Changchun Institute of Geology, the Geological Institute of Jilin Bureau of Geology and Mineral Resources and Nanjing Institute of Geology and Palaeontology advocate and work, especially the later Nanjing The study organized by the Palaeozoic, the Cambrian-Ordovician boundary line at Dayangcha, Hunjiang, Jilin Province, held in Calgary, Canada from July 14 to July 17, 1985, At the plenary meeting of the Working Group on Line Boundaries, it was listed as a candidate layer profile of the two Cambrian-Ordovician boundary lines in the world