Earth:Jindong Formation
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Short description: Geologic formation in Korea
| Jindong Formation Stratigraphic range: Cenomanian ~99.9 Ma | |
|---|---|
| Type | Geological formation |
| Unit of | Hayang Group |
| Underlies | Yucheon Group (volcanics) |
| Overlies | Haman Formation |
| Lithology | |
| Primary | Mudstone, siltstone |
| Other | Sandstone, shale |
| Location | |
| Coordinates | [ ⚑ ] : 35°24′N 128°24′E / 35.4°N 128.4°E |
| Paleocoordinates | [ ⚑ ] 44°42′N 122°54′E / 44.7°N 122.9°E |
| Region | Gyeongsangnam-do |
| Country |  South Korea |
| Extent | Gyeongsang Basin |
  Jindong Formation (South Korea) | |
The Jindong Formation (Korean: 진동층; Hanja: 鎭東層; RR: Jindong-cheung) is a geological formation located in South Korea . It dates to the Cenomanian stage of the Late Cretaceous, with a maximum depositional age of 99.9 ± 0.7 Ma.[1]
Lithology
The formation is a thick layering of fine-grained, altered volcaniclastic sediments. Most of these sediments are ash-rich mudstone, siltstone, and very fine sandstone. There is also coarser sandstone, conglomerate, carbonates, and ash tuff. [2]
Paleontology
The area has many dinosaur and bird tracks.[3] It contains Hadrosauropodus kyoungsookimi, the first trackway of a quadrupedal ornithopod discovered in Korea.[4][5]
See also
References
- ↑ Lee, Tae-Ho; Park, Kye-Hun; Yi, Keewook (October 2018). "Nature and evolution of the Cretaceous basins in the eastern margin of Eurasia: A case study of the Gyeongsang Basin, SE Korea" (in en). Journal of Asian Earth Sciences 166: 19–31. doi:10.1016/j.jseaes.2018.07.004. https://linkinghub.elsevier.com/retrieve/pii/S1367912018302669.
- ↑ Houck, Karen J.; Lockley, Martin G. (February 2006), "Life in an active volcanic arc: Petrology and sedimentology of dinosaur track beds in the Jindong Formation (Cretaceous), Gyeongsang Basin, South Korea", Cretaceous Research 27 (1): 102–122, doi:10.1016/j.cretres.2005.10.004, http://doc.rero.ch/record/15481/files/PAL_E2869.pdf
- ↑ Lockley, Martin G.; Houck, Karen J.; Yang, Seong-Young; Matsukawa, Masaki; Lim, Seong-Kyu (February 2006), "Dinosaur-dominated footprint assemblages from the Cretaceous Jindong Formation, Hallyo Haesang National Park area, Goseong County, South Korea: Evidence and implications", Cretaceous Research 27 (1): 70–101, doi:10.1016/j.cretres.2005.10.010, http://doc.rero.ch/record/15480/files/PAL_E2868.pdf
- ↑ Lim, Jong-Deock; Lockley, Martin G.; Kong, Dal-Yong (March 19, 2012), "The Trackway of a Quadrupedal Ornithopod from the Jindong Formation (Cretaceous) of Korea", Ichnos (Taylor & Francis Group) 19 (1–2): 101–104, doi:10.1080/10420940.2012.664059
- ↑ Yoon, Han Sang; Lee, Yuong-Nam; Jung, Seung-Ho; Kong, Dal-Yong; Kim, Su-Hwan; Son, Minyoung (2021). A juvenile ornithopod-dominated tracksite from the Lower Cretaceous Haman Formation, South Korea. 125. pp. 104877. doi:10.1016/j.cretres.2021.104877.
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