| Phonolite Series | |
|---|---|
| Stratigraphic range: | |
 Plug at Addi Amyuq in Dogu’a Tembien | |
| Type | Geological formation |
| Overlies | Tertiary Basalts |
| Lithology | |
| Primary | Phonolite |
| Location | |
| Coordinates | 14°09′29″N 38°56′42″E / 14.158°N 38.945°E |
| Approximate paleocoordinates | 0°N 0°E / 0°N 0°E |
| Region | Tigray |
| Country |  Ethiopia |
| Extent | Aksum-Adwa-Dogu’a Tembien |
  Phonolite series in North Ethiopia (Ethiopia) | |
The phonolite or clinkstone of northern Ethiopia is a shallow-seated igneous rock. The phonolites intruded and punctured the Mesozoic sedimentary rocks and the Tertiary flood basalts some 19 to 11 million years ago.[1][2]
- ^ Miruts Hagos and colleagues (2019). The volcanic rock cover of the Dogu'a Tembien massif. In: Geo-Trekking in Ethiopia's Tropical Mountains, the Dogu'a Tembien District. SpringerNature. ISBN 978-3-030-04954-6.
- ^ Le Bas, M.J.; Mohr, P.A. (1968). "Feldspathoidal rocks from the Cainozoic volcanic province of Ethiopia". Geologische Rundschau. 58 (1): 273–280. doi:10.1007/BF01820608.