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LocationGyeoksang-gil Byeonsan-myeon, Buan-gun, Jeollabuk-do
- CategoryTour/ Natural Environment
- Korean격포리 단층
- Chinese格浦里斷層
- FieldGeography / Natural Geography
- Contents TypePlace Name / Name of Natural Place
- Definition
- Gyeokpori Fault in the Gyeokpo Basin, Byeonsan-myeon, Buan-gun, Jeollabuk-do.
- Summary
- The Gyeokpo area is home to the Gyeokpo Basin, which formed in the Cretaceous period of the Mesozoic Era, and various related rocks and geological structures. The formation of the Gyeokpo Basin is closely related to the crustal movements of the Korean Peninsula and Northeast Asia, which helps us to understand the formation process of the fault and the basin.
- Natural Environment
- The Northeast Asian region including the Korean Peninsula was affected by large-scale crustal deformation caused by the subduction of the oceanic Izanagi Plate, which goes beneath the continental Eurasian Plate during the Cretaceous period of the Mesozoic Era. This phenomenon resulted in the formation of sedimentary basins of different sizes, as well as volcanic and igneous activities of different types and sizes. Accordingly, sinistral strike-slip faults were formed in the northeast and southwest directions of the Korean Peninsula during the same period and era. Thus, it is known that a series of basins was formed in Pungam, Eumseong, Gongju, Buyeo, and Gyeokpo along the Gongju fault system in the north, while another series of basins was formed in Yeongdong, Muju, Jinan, and Haenam along the Gwangju fault system in the south.
The Gyeokpo Basin was formed along the Hamyeol fault extending from the southwestern part of the Gongju fault system and running further south. The Gyeokpo Basin features diverse geological structures that were formed by crustal movements on the Korean Peninsula in the Cretaceous period and the resulting volcanic activities. Its typical example is the fault. The Gyeokpo Basin has various normal faults, reverse faults, and step faults, as well as a fault system in which a series of normal faults was formed along with a small land block caused by the collapse of two faults on both sides.
- See Also