EGU2020-6257
https://doi.org/10.5194/egusphere-egu2020-6257
EGU General Assembly 2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Detecting geological structures in coastal area of Buan, South Korea using unmanned aerial vehicle images

Hong-Jin Lee1 and Kyoungtae Ko2
Hong-Jin Lee and Kyoungtae Ko
  • 1Korea Institute of Geoscience and Mineral Resources, Geoscience Platform Division, Korea, Republic of (leehj@kigam.re.kr)
  • 2Korea Institute of Geoscience and Mineral Resources, Geology Division, Korea, Republic of (kkt@kigam.re.kr)

This study attempted to use unmanned aerial vehicle (UAV) photogrammetry for structural mapping at limited exposure outcrops in the west coast area of Buan, South Korea. The west coast area of Buan has a large tidal range, and there are restrictions for traditional structure mapping. High spatial resolution (about 4.5 cm per pixel) UAV images were obtained at low tide from a selected study site. The UAV survey identified 50 brittle structures (fractures and faults that were divided into three groups) and changes in the bedding trace. The bedding trace demonstrates various directional verging of the fold geometry that indicates slump-fault structures. While more research is still necessary, this study demonstrated that UAV mapping techniques are very useful for geological structural analysis in coastal areas.

How to cite: Lee, H.-J. and Ko, K.: Detecting geological structures in coastal area of Buan, South Korea using unmanned aerial vehicle images, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-6257, https://doi.org/10.5194/egusphere-egu2020-6257, 2020