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福建永安魏坊地区下古生界地层出露较齐全,省区域地质测量队曾在本区建立了东坑口群、魏坊群之岩石地层单位,并认为地层层序是东坑口群在下、魏坊群在上,区内重晶石矿层赋存于林田群上段地层中,经系统的剖面精测及矿区外围的1∶50000地质填图,笔者提出了不同看法,认为区内地层层序自下而上为魏坊群、东坑口群、罗峰溪群。重新厘定的地层层序,对区域上岩石地层及生物地层对比方面进行了讨论,拟定了一套新的对比方案。
The lower Paleozoic strata in the Weifang area of Yong’an in Fujian Province were more well exposed. The regional geological survey teams established the lithostratigraphic units of Dongkengkou Group and Weifang Group in this area, and considered that the stratigraphic sequence is that the Dongkengkou Group is under the Wei Square group, the barite hosted in the upper strata of Lintian Group, the system profiling and geological survey 1: 50000 peripheral geological mapping, the author put forward different views that the stratigraphic sequence of the region from The bottom up is Weifang Group, Dongkeng Kou Group and Luo Fengxi Group. Re-determined sequence of stratigraphy, the region on the rock stratigraphy and biostratigraphy comparison, developed a new set of comparison programs.