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1958年中国科学院祁连山地层队在祁连山南坡欧龙布鲁克山建立了早石炭世早期城墙沟组之后,城墙沟组被广大地质工作者所应用。1682年骆金锭、赵嘉明根据城墙沟组的四射珊瑚化石,建立了 Siphonophyllia oppressa 带。从此之后,一直没有人对城墙沟组的珊瑚化石进行详细地研究。直至1977年作者同本所部分同志前往青海与青海省地质局区测一队综合分队合作,对柴达木盆地北缘的石炭系进行了专题研究,共同测制了石炭系多条
In 1958, the Qilian Mountain formation team of Chinese Academy of Sciences established the early Qizhanggou Formation of the Early Carboniferous in the Oolongbrook Mountain on the southern slope of the Qilian Mountains. The Qizigou Formation was used by a large number of geological workers. In 1682, Luo Jin ing and Zhao Jiaming established the Siphonophyllia oppressa belt according to the coral fossils in the Chengzigou Formation. Since then, no one has ever studied the coral fossils in the Chengzigou Formation for a long time. Until 1977, with some comrades of our institute, we went to a comprehensive detachment of a team in the Geological Bureau of Qinghai Province and Qinghai Province to conduct a special study on the Carboniferous in the northern margin of the Qaidam Basin,