本文为1980-1982年我们进行“西秦岭志留纪地层划分与对比”研究工作的成果,1983年由甘肃省地质矿产局进行审查验收。现整理成文,以供参考。 鉴于研究区仅限于甘肃南部白龙江两岸的原“白龙江群”分布区和武都-宝成铁路一带的原“白水江群”分布区,故称西秦岭南坡的志留系。 该区志留系早在1944年为关士聪、叶连俊创名报导。解放后研究工作者颇多。但真正的深入研究是1967年以后。这一时期由于区调工作的开展,以及一些科研单位特别是西安地质矿产研究所的反复研究,才使这一地区的志留系研究程度显著提高。(表1,2) This paper is from 1980 to 1982, we carried out the “West Qinling Silurian stratigraphic division and comparison,” the results of the work, in 1983 by the Geological and Mineral Bureau of Gansu Province for examination and acceptance. Now collated for reference. In view of the fact that the study area is limited to the original “Bailongjiang Group” on both banks of Bailongjiang in the south of Gansu and the original “Baishuijiang Group” in the vicinity of Wudu-Baocheng Railway, it is called the Silurian in the southern slope of West Qinling. As early as 1944, this area was a member of Guanshi Cong and Ye Lianjun. After the liberation of many research workers. But the real in-depth study is after 1967. During this period, the study of Silurian increased significantly in this area due to the development of the regional adjustment work and the repeated studies by some scientific research units, especially Xi’an Institute of Geology and Mineral Resources. (Table 1, 2)