Iljig Formation
| Iljig Formation | |
|---|---|
| Stratigraphic range: | |
| Type | Geological formation |
| Unit of | Hayang Group |
| Underlies | Hupyeongdong Formation |
| Overlies | Jinju Formation |
| Location | |
| Region | North Gyeongsang Province |
| Country | South Korea |
The Iljig Formation (Korean: 일직층; Hanja: 一直層; RR: Iljig-cheung) is a Lower Cretaceous geologic formation in South Korea. It partially correlates with the lower part of the Chilgog Formation.