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野马地区位于吉林省洮安县西北部。1981—1984年,吉林省地质矿产局第三地质矿产调查所对该地区进行了1:50000区域地质调查,所涉及的范围为:东经121°45′00″—122°07′30″;北纬45°30′00″—45°50′00″。根据1:50000区调工作成果,并充分研究前人工作有关资料,对区内古生代地层层序作了重新划分,由下而上为吴家屯组和索伦组。本文试图用生物地层学和岩石地层学等相结合的方法,对本区古生代地层的层序及时代隶属问题作一探讨。
Mustang area is located in the northwest of Jian County in Jilin Province. In 1981-1984, the Third Geological Survey of Geology and Mineral Resources Bureau of Jilin Province carried out a 1: 50000 regional geological survey of the area covering the range of longitude 121 ° 45’00 “-122 ° 07’30” longitude and north latitude 45 ° 30’00 “-45 ° 50’00”. Based on the work results of 1: 50,000 area adjustment, and fully studying the relevant data of previous work, the sequence of Paleozoic stratigraphy in the area has been re-divided into the Wujiatun Formation and the Solon Formation from bottom to top. This paper attempts to use the method of combining biostratigraphy with lithostratigraphy to discuss the sequence of the Paleozoic strata in this area and the issue of the times.