Chilgog Formation

Chilgog Formation Stratigraphic range: Albian 108.7–106.0 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Unit of
Underlies
Overlies	Jinju Formation
Thickness	Up to 650 m (2,130 ft) 295 m (968 ft) in the western Daegu area
Lithology
Primary	Sandstone, mudstone, conglomerate
Other	Tuff
Location
Coordinates	36°00′N 128°30′E / 36.0°N 128.5°E / 36.0; 128.5Coordinates: 36°00′N 128°30′E / 36.0°N 128.5°E / 36.0; 128.5
Approximate paleocoordinates	40°54′N 128°18′E / 40.9°N 128.3°E / 40.9; 128.3
Region	Gyeongsangbuk-do
Country	South Korea
Extent
Chilgog Formation (South Korea)

The Chilgog Formation, also known as the Chilgok Formation is an Early Cretaceous geologic formation in South Korea.^[1] Formerly dated to the Berriasian to Hauterivian, later dating has established an Albian age.^[2] Dinosaur remains, possibly of sauropods,^[3] are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.^[4]

Description[]

The formation predominantly consists of sandstone, mudstone and conglomerate, with subordinate tuff and other volcanics.^[5] It overlies the Jinju Formation and underlies the Silla Conglomerate, which underlies the Haman Formation, respectively.

See also[]

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with indeterminate dinosaur fossils

References[]

Bibliography[]

• Lee, Tae-Ho; Kye-Hun Park, and Keewook Yi. 2018. Nature and evolution of the Cretaceous basins in the eastern margin of Eurasia: A case study of the Gyeongsang Basin, SE Korea. 166. 19–31. doi:10.1016/j.jseaes.2018.07.004
• Weishampel, David B.; Peter Dodson, and Halszka Osmólska (eds.). 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
• Choo, Chang Oh; Young Sik Shin, and In Seok Koh. 2002. Mineralogical evidence for red coloration of sandstones at the Chilgok Formation of the Cretaceous Hayang Group, Southeastern Korea. 6. 141–148. doi:10.1007/BF03028285 ISSN 1226-4806
• Kim, H.M. 1981. Cretaceous dinosaur bones excavated from two localities in Korea. 17. 297.