The Qingbaikou Period-Early Ordovician Sequence Strata and Their Framework at the Southern Fringe North China Plate in oft-com:office:smarttags" />
At the southern fringe of North China Platform are substantially outcrops of the Early Paleozoic Qingbaikou strata, developed in passive continental craton basin and dominated by platform carbonate deposit. Based on more than 10 measured profiles as well as major and auxiliary routes of observation, the Early Paleozoic-Early Ordovician Qingbaikou strata can be divided into 2 huge sequences and 12 three-class sequences in the surveyed area, on such basis, the sequence stratigraphy framework was set up and the changing law for each lithostratic unit discussed.