山东省中生代地层划分与对比

对山东省中生代地层的研究表明：沂沐断裂带以西的鲁西南、鲁中、鲁北地区侏罗纪、白垩纪地层发育较全，而断裂带以东的钱是东地区仅发育白垩纪地层；断裂带两侧中生代地层的化石组合、火山岩特点等都相差很大。本文将沂沭断裂带以西的坊子组归于下－中侏罗纪，三台组归于中侏罗统，分水岭组暂归于上侏罗统、西洼组归于下白垩统；而将沂沐断裂带以东的莱阳组、青山组归于下白垩统。王氏组归于上白垩统。笔者废除使用蒙阴群(组)和汶南(亚)组，并建设将鲁北地区目前使用的“王氏组” 废除，另建新名。

STRATIGRAPHIC DIVISION AND CORRELATION OF THE MESOZOIC STRATA IN SHANDONG

The study of Mesozoic fossils and volcanic rocks in Shandong shows that there are both Jurassic and Cretaceous strata n the west of Yishu fracture zone (including areas of southwest, central and north Shandong), while only Cretaceous strata in the east of this zone (namely, east Shandong). The authors consider that the Fangzi Formation belongs to the Lower to Middle Jurassic, the Santai Formation to Middle Jurassic, the Fenshuiling Formation to Upper Jurassic, the Laiyang, Qingshan and Xiwa Formations to Lower Cretaceous, and the Wangshi Formation to Upper Cretaceous. The authors abolish the Mengyin Group (Formation) and the Wennan Sub-formation, and suggest that the “Wangshi Formation” used in north Shandong should be abolished and a new name should be established.