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Antalo Limestone
From Wikipedia, the free encyclopedia
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.[1][2]
Quick Facts Type, Underlies ...
Antalo Limestone | |
---|---|
Stratigraphic range: Oxfordian-Kimmeridgian ~163–153 Ma | |
![]() 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 / 13.5977; 39.2772 |
Approximate paleocoordinates | 7.5°S 26.6°E / -7.5; 26.6 |
Region | Tigray |
Country | ![]() ![]() |
Extent | Mekelle Outlier, Danakil Alps |
Type section | |
Named for | Antalo town |
Named by | William Thomas Blanford |
Year defined | 1868 |
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