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大别山北缘中生界的沉积学研究表明,三尖铺组向上变细的巨旋回记录了从河川径流到碎屑流、超浓缩洪流到远端河道以及越岸沉积,显示源区在早侏罗世(205～180Ma)之前快速抬升之后经历了相对平静阶段。凤凰台组向上变粗的扇砾岩巨层序记录了碎屑流-超浓缩洪流沉积,反映了在侏罗纪末(135Ma)到早白垩世源区剧烈的持续上升和剥蚀,导致向盆地远端砾岩的进积作用。早白垩世晚期,黑石渡组巨旋回下部的碎屑流沉积是近源堆积,上部发育湖相浊积岩,反映源区的构造演变为转换拉张。晚白垩世,盆地边缘与源区一道抬升,遭受剥蚀。
The Mesozoic sedimentary study on the northern margin of the Dabie Mountains shows that the trending upward spiral of the Sanjianpu Formation records the flow from runoff to debris flow, superconcentration flood to the distal channel, and overlying sediments, indicating that the source region is in the early Jurassic After the rapid uplift (205 ~ 180Ma), Luo Shi experienced a relatively calm period. The upwardly thick fan-conglomerate sequence of the Fenghuangliu Formation recorded the debris flow-superconcentrated flood deposition, reflecting the dramatic and persistent uplift and erosion at the source of the Early Cretaceous from the Late Jurassic (135 Ma) to the Early Cretaceous, Focal accumulation of distal conglomerates. In the early Early Cretaceous, the debris flow in the lower part of the Heishidudu Formation was near-source accumulation and upper lacustrine turbidite, reflecting that the tectonic evolution of the source region was converted to tension. During the Late Cretaceous, the margin of the basin was raised along with the source area and suffered erosion.