【摘要】 郯庐断裂带是世界上具有数百ｋｍ位移的最大的大陆走滑断层之一。作者评论了当前研究者提出的将其作为大陆内平移断层、地缝合线－边界转换断层、大陆内转换断层以及碰撞嵌入构造等四种模式。从断裂带的形态与规模，两侧地块的可对比性，晚侏罗世至早白垩世的平移时间，北突的苏北地块为碰撞后左行平移的结果，以及断裂尾端附近大别山带的压缩等，作者认为郯庐断裂带为西北环太平洋边缘内侧的平移断层。更多还原

【Abstract】 The NNE-SSW Tan-Lu fault zone with hundreds of kilometers of sinistral disp1acementis one of the largest continental strike-slip faults in the world. Four tectonic models,i.e,theintracontinental transcurrent fault model, suture line-boundary transform model,intraconti-nental transform fault model and indentation model,have been proposed by different workersfor origin and development of the fault zone. In the intracontinental transcurrent fault model,origin and development of the Tan-Lu fault zone is attributed to plate oblique motion in theNW Pacific Ocean to the Eurasian continent during Late Jurassic to Early Cretaceous, Thesuture line model demonstrates that the Tan-Lu fault zone is a suture line of the North ChinaBlock(NCB)and South China lock(SCB)or the NCB and some terranes,The Tan-Lu faultzone is regarded as a transform fault developed during collision between the NCB and SCB inthe transform fault model. Thetransform fault model is mainly based on the hypothesis thatduring continent-continent collision of the NCB and SCB A-type subduction had opposite di-rections on the either side of the Tan-Lu fault zone. The indentation model suggests that col-lision of the NCB and SCB began by indentation of the northeastern SCB between the Tan-Lufault zone and Honam shear zone into the eastern NCB in the late Early Permian and lasteduntil the Late Triassic to Early Jurassic. The Tan-Lu fault zone is therefore considered as thewestern boundary of the northward projection of the SCB in the indentation model.The Tan-Lu fault zone not only occurs between the Dabieshan and Jiaonan collision beltsbut also extends far north into the northern NCB,Paleozoic fold belts in northeast China andthe Sikhote-Alin area in Far East of Russia,A great wrench fault system generally parallel tothe northwestern Pacific margin was associated with development of the Tan-Lu fault zone.Therefore, only using the collision of the NCB and SCB is difficult to interpret whole originand development of the fault zone and its associated wrench fault system.If strike-slip offset on the fault zone is restored, geological units on the both sides couldbe correlated with each other. Before dislocation on the Tan-Lu fault zone,geological unitsand tectonic framework in the whole NCB were aligned nearly EW,Obviously,the sutureline-boundary transform model, intracontinental transform model and indentation model can-not interpret the dislocation of the geological units by the Tan-Lu fault zone on such a largescale.New evidences have shown that great left-lateral displacement on the Tan-Lu fault zoneas we11 as in the Tan-Lu fault system took place in the latest Late Jurassic to Early Creta-ceous as the continent-continent collision between the NCB and SCB. Therefore,developmentof the Tan-Lu fault zone cannot be related to the N-S collision between the NCB and SCB.Blue schists in the NNE-SSW Zhangbaling belt,the southern segment of the Tan-Lufault zone,was once used for an evidence for the suture line model.Our recent studies showthat the Zhangbaling belt is a part of the Dabieshan collision belt before it was offset andcurved by the Tan-Lu fault zone, The high-pressure metamorphism in the belt is related tothe N-S collision of the NCB and SCB rather than the Tan-Lu fault zone,Obviously,the su-ture line-boundary transform model is not evdent.New geophysical data indicate that the Qinling-Dabieshan collision belt west of the Tan-Lu fault zone and the Jiaonan collision belt east of the Tan-Lu fault zone have the same A-type subduction direction,Continental crust of the NCB subducted under the SCB in the colli-sion belt on the both sides of the Tan-Lu fault zone.The northward extension of the northern Jiangsu massif,which was used for a main evi-dence for the indentation model,actually occurs as a consequence of sinistral dislocation bythe NNE-SSW Tan-Lu fault zone.The northward extension occurred after thecollision be-tween the NCB and SCB. Consequently,the indentation model is unacceptable. The above evidences show that the NNE-striking major Tan-Lu fault zone on the east更多还原