Chilgog Formation | |
---|---|
Stratigraphic range: Albian | |
Type | Geological formation |
Unit of | Hayang Group |
Underlies | Silla Conglomerate |
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 |
Approximate paleocoordinates | 40°54′N 128°18′E / 40.9°N 128.3°E |
Region | Gyeongsangbuk-do |
Country | South Korea |
Extent | Gyeongsang Basin |
The Chilgog Formation (Korean: 칠곡층; Hanja: 漆谷層; RR: Chilgok-cheung), 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]