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从《祁连山地质志》出版以来,廿余年甘、青、宁三省区、西安地质矿产研究所以及其他单位对北祁连区均开展了大规模中比例尺的区域地质调查和一些专题的科研,早古生代地层在科学院原划分的基础上有了更新的发展。许多新成果、新资料补充、修订和丰富了原建地层单位,在与我国各地层区的对比上有了更清晰的认识,并有可能将早古生代的生物分带进一步建立起来。笔者拟将现有的研究精度作一归纳和综合,如有欠妥或谬误,恳请指正。
Since the publication of the Qilian Mountains Geological Register, more than 20 years Gan, Qing, Ning provinces, Xi’an Institute of Geology and Mineral Resources and other units of the North Qilian area carried out a large-scale medium-scale regional geological survey and some special research, early The Paleozoic strata have been updated on the basis of the former division of the Academy of Sciences. Many new achievements and new materials have added, revised and enriched the original unit of formation and gained a clearer understanding of the contrast with various stratification areas in our country. It is also possible to further establish the bio-zoning of the Early Paleozoic. The author intends to make a summary of the existing research accuracy and synthesis, if any defects or fallacies, urgently correct.