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作者对山东及邻区本溪组及太原组进行了详细的室内外研究,共发现了6期10次火山事件沉积,它们在时空分布上有一定规律。火山碎屑可能来自华北地台以北及以南两个不同的火山源,而火山源的岩浆可能来自下地壳。在前人的生物地层研究基础上,以遍布全区的火山事件层作为大区域等时地层对比标志,并结合最大海侵事件层,对研究区内本溪组及太原组地层提出了新的对比方案。
The authors conducted a detailed study of the interior and exterior of the Benxi and Taiyuan formations in Shandong and its adjacent areas. A total of 10 sedimentary volcanic events were discovered in six phases, and they have some regularities in space-time distribution. Volcanic debris may originate from two different volcanic sources north and south of the North China platform, while volcanic origin may originate from the lower crust. Based on the previous bio-stratigraphic studies, the volcanic events in the whole area are used as the contrast markers of the isochronous strata in the large area. In combination with the largest transgression event layer, a new comparison is made between the strata of Benxi and Taiyuan formations in the study area Program.