摘要
李四光所定义的闽浙运动 ,以由浙东南永康群馆头组的基底假整合至微不整合为代表较为适当 ,多见于闽东白垩系石帽山群的基底假整合至不整合 (?)也可代表。据馆头组的丰富化石 ,闽浙运动的发生期被定为早白垩世的中期 ,主要表现为古浙西北主区的上升和浙东南不均衡的沉降 ,主要为造陆运动的性质 ,也表现为馆头组与其下更老岩层之间的假整合或微交角不整合接触 ,浙南丽水老竹区的不整合交角为 2 0°,他处偶见的高角度接触为局部性质。同时将闽浙两省及邻区与我国西北部及滇中以至日本的相应运动作了简要对比 ,我国松辽含油盆地的主要生成期及日本佐川运动的大贺最晚幕的发生期 ,均可与闽浙运动时期对比。
The late Prof. J. S. Lee's Mincheian Movement(1939) would be more adequately represented by the basal discordant contact of the Guantou Formation of the Yongkang Group overlying the older formation in Zhejiang .It would be probably represented by the basal disordance of the Shimoushan Group in Fujian. Base on the abundant fossils of the Guantou Formation in Zhejiang the Mincheian Movement had been dated to be of the middle Early Cretaceous age. This movement is characterized by the relative uplift of the ancient northwestern Zhejiang and the differential depression of the ancient southeastern Zhejiang. Its epeirogenic character is also shown by the gently unconformable and essentially disconformable contact between the Guankou and its underlying older formations. The Mincheian Movement and its corresponding movements in northeastern Asia including the central Yunnan to the northeastern China and the Japanese Islands have been intrinsically correlated. The main period of the formation of the oil-bearing Song-liao sedimentary basin and the latest Oga Phase of the Sakawa Movement in Japan may be correlated with the Mincheian Movement.
出处
《地层学杂志》
CSCD
北大核心
2005年第1期1-6,共6页
Journal of Stratigraphy
关键词
闽浙运动
馆头组
朝川组
永康群
石帽山群
衢江群
早白垩世
浙江
福建
Mincheian Movement, Guantou Formation, Chaochuan Formation, Yongkang Group, Shimaoshan Group, Qujiang Group, Early Cretaceous, Zhejiang, Fujian
