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选择了郯庐断裂带安徽段5处糜棱岩、超糜棱岩、千糜岩进行了40Ar/39Ar年代学研究. 大别造山带东缘断裂带上3处4个样品给出了128～132 Ma的40Ar/39Ar坪年龄; 北部张八岭隆起带西侧和蚌埠隆起东缘断裂带上两处样品一致给出了120 Ma的40Ar/39Ar坪年龄. 等时线分析及其他证据表明这些数据是可靠的. 这些年龄值代表了郯庐断裂带韧性左旋走滑变形的冷却年龄, 北部较年轻的年龄值可能与较缓慢的走滑隆起有关. 由此表明, 郯庐断裂带的大规模左行平移发生在早白垩世, 而不是一些学者认为的印支期. 该断裂带是滨太平洋的陆内平移断裂, 而不是大别—胶南造山带同造山的转换断层或斜向缝合边界.
The 40Ar / 39Ar chronology of 5 mylonites, extra-mylonites and phyllonites in the Anhui section of the Tan-Lu fault zone has been selected.The 4 samples on the eastern margin of the Dabie orogen provide 128 ~ 40Ar / 39Ar Ping ages of 132 Ma, and 40Ar / 39Ar Ping ages of 120 Ma on the west of the Zhangbaling uplift belt and the eastern margin of the Bengbu uplift in the north of China. The isochronal analysis and other evidences indicate that these data are Reliable.These age values represent the cooling age of ductile left-lateral strike-slip deformation of the Tan-Lu fault zone, and the younger age value of the northern part may be related to the slower strike-slip.So that the large-scale left bank of the Tan-Lu fault zone The translation took place in the Early Cretaceous rather than some Indosinian Indo-Chinaian fractures, which are intracontinental translocations in the Pacific Rim, rather than the transgressive or oblique suture boundaries of the Dabie-Jiaonan orogenic belt.