Ryugase Group | |
---|---|
Stratigraphic range: Late Santonian- Early Campanian ~ | |
Type | Geological formation |
Overlies | Yezo Group |
Lithology | |
Primary | Mudstone |
Location | |
Coordinates | 47°12′N 142°30′E / 47.2°N 142.5°E |
Approximate paleocoordinates | 51°54′N 130°00′E / 51.9°N 130.0°E |
Region | Sakhalin Oblast |
Country | Russia |
Extent | Sakhalin Island |
Ryugase Group (Russia) |
The Ryugase Group is a geological formation on Sakhalin Island in far eastern Russia whose strata date back to the Late Cretaceous.[1]