Fission track dating is used to determine the uplift time of the extended mountain range, and then the evolution rule of the extensional structure can be studied. The apatite/zircon fission track analysis was carried out on nine samples collected from the Lianhuashan Mountain in Luxi, and the uplift history of the Luxi uplift was analyzed. The results show that there are two processes of uplift and exhumation since the Late Cretaceous in Lianhuashan, one in the Late Cretaceous-Early Paleocene 86～60 Ma, the uplift rate is 0.019 mm/yr, the other is in the Middle of the Miocene 44～38 Ma, uplift rate of 0.10 mm/yr. Therefore, the Lianhuashan Mts. has experienced accelerated lifting process since the Late Cretaceous. The comprehensive study suggests that the uplifting time of these mountains in the Luxi uplift since the Late Cretaceous migrate from south to north and from east to west, and the earliest may begin in the Early Cretaceous. This migration rule is controlled by the subduction direction and velocity of the paleo-Pacific Plate since the Early Cretaceous and the variation of the strike-slip property and intensity of the Tan-Lu fault zone.
Li Li Zhong Dalai Yang Changchun Chen Yan He Xinyue. Fission track evidence of Late Cretaceous-Cenozoic differential uplifting of the Luxi uplift[J]. Chinese Journal of Geology, 2017, 52(4): 1026-1037.