Alaji Basalts
| Alaji Basalts | |
|---|---|
| Stratigraphic range: | |
Mt. Gumawta, Tembien highlands | |
| Type | Geological formation |
| Underlies | Pliocene shield volcanoes, locally |
| Overlies | Ashangi Basalts, Intra-volcanic sedimentary rock |
| Thickness | 220 m (720 ft) |
| Lithology | |
| Primary | Basalt, Rhyolite |
| Other | Trachyte |
| Location | |
| Coordinates | 12°58′54″N 39°31′11″E / 12.9817°N 39.5198°E |
| Region | Tigray |
| Country | Ethiopia |
| Extent | Ethiopian Highlands |
| Type section | |
| Named for | Imba Alaje Mountain |
| Named by | William Thomas Blanford |
The Alaji (upper) Basalts are the youngest series of the Ethiopian flood basalts. The most recent flows are only 15 million years old.