DaqingSongliao Fm

Type section at Daqing close to Xiaojingou, Shangzhi County, Heilongjiang Province. Named by Guo Shengzhe, Su Yangzheng, Chi Yongyi, Huang Benhong, 1992, Palaeozoic Biostratitigraphy and Palaeogeography of Geosynclinal Area of Jilin-Eastern Heilongjiang Area, in Nan Runshan, Guo Shengzhe, et al., 1992, Palaeotological Stratitigraphy and Palaeogeography of Geosynclinal Area, Inner Mongolia-Northeast China, Beijing: Geological Publishing House. First appeared in a 1989 manuscript by Heilongjiang Bureau of Geology and Mineral Resources. [Because the Ordovician Lexicon has another "Daqing" Fm in Yunnan region, then this one is denoted as DaqingSongliao.] Upper formation in the Shangzhi Gr (sum of Baoquan Fm, Xiaojingou Fm and DaqingSongliao Fm).

Synonym: : Strat-Names book says "For the upper part of the Heilonggong Formation"; however, the "Heilonggong Fm" entry in the same Strat Names has an age indicated as Devonian; whereas the Daqing is indicated as mid-Ordovician.]

Not yet provided. [Temporary, considering Xiaojingou Fm is in the same Shangzhi Gr, shown as clayey sandstone on graphic.]