Paleogeomorphic evolution in eastern North China controlled by the subsidence of the marginal sea shelf since late Cenozoic
- 1Frontiers Science Center for Deep Ocean Multispheres and Earth System, Key Lab of Submarine Geosciences and Prospecting Techniques, MOE and College of Marine Geosciences, Ocean University of China, Qingdao 266100, China
- 2Laboratory for Marine Mineral Resources, National Laboratory for Marine Science and Technology(Qingdao), Qingdao 266237,China
- 3University of California Los Angeles, Department of Earth, Planetary and Space Sciences, Los Angeles, CA 90095, USA
Since the late Cenozoic, the geomorphology in the eastern part of North China have undergone tremendous changes under the influence of a variety of complex factors, but the exact process and finalization time are still controversial. The Badlands numerical simulation tool was used to dynamically reconstruct the geomorphic evolution process in eastern North China since the late Cenozoic (25 Ma). The rationality of the simulation results was validated by comparing with the regional tectonic framework and sedimentary distribution. The results show that the geomorphology in the eastern North China has been finalized and tends to evolve stably in Neogene, and is mainly controlled by tectonic activities. In addition, in the eastern part of North China during this period, there may be an ancient river - "East China River" around the Shandong Peninsula. It was formed no later than the Early Neogene, and may disappear during the Holocene. The results can provide quantitative basis for the study of geomorphic evolution and sedimentary process on the tectonic scale.
How to cite: Han, X., Suo, Y., Li, S., Ding, X., Song, S., Tian, Z., and Fu, X.: Paleogeomorphic evolution in eastern North China controlled by the subsidence of the marginal sea shelf since late Cenozoic, EGU General Assembly 2023, Vienna, Austria, 24–28 Apr 2023, EGU23-5574, https://doi.org/10.5194/egusphere-egu23-5574, 2023.
