Antalo Limestone
The Antalo Limestone, also known as the Antalo Sequence, is a geological formation in Ethiopia. It is between 300 and 800 metres thick and comprises fossiliferous limestones and marls that were deposited in a reef. Marine microfossils have shown an age between 165 and 150 million years.
| Antalo Limestone | |
|---|---|
| Stratigraphic range: Oxfordian-Kimmeridgian ~ | |
Formation at Kurkura village (Dogua Tembien), holding St. Mika'el's cave | |
| Type | Geological formation |
| Underlies | Mugher Mudstone |
| Overlies | Adigrat Sandstone |
| Thickness | 800 m (2,600 ft) |
| Lithology | |
| Primary | Limestone, marl, calcareous sandstone |
| Other | Grainstone, wackestone |
| Location | |
| Coordinates | 13.5977°N 39.2772°E |
| Approximate paleocoordinates | 7.5°S 26.6°E |
| Region | Tigray |
| Country | Ethiopia Eritrea |
| Extent | Mekelle Outlier, Danakil Alps |
| Type section | |
| Named for | Antalo town |
| Named by | William Thomas Blanford |
| Year defined | 1868 |
Antalo Limestone (Ethiopia) | |
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