Angwa Sandstone Formation
| Angwa Sandstone Formation Stratigraphic range: Middle Triassic |
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| Type | Geological formation |
| Unit of | Upper Karoo Group, Karoo Supergroup |
| Underlies | Pebbly Arkose Formation |
| Overlies | Lower Karoo Group |
| Location | |
| Country | Mozambique, Zambia, Zimbabwe |
| Type section | |
| Named for | Angwa River, Zimbabwe |
The Angwa Sandstone Formation is a geological formation of the mid-Triassic, consisting mainly of sandstone.
The formation is a sedimentary unit, consisting mainly of fluvial sands and silts.
It has been dated as covering rocks from much of the Triassic, with pollen and flora identified from the Induan, and Ladinian to Norian.
The Angwa Sandstone is the lowest formation in the Upper Karoo Group of the Karoo Supergroup, lying below the Pebbly Arkose Formation and overlting the Lower Karoo Group. The formation is divided into two members: the Alternations Member and the Massive Sandstone (Chirambakadoma) Member.
The Angwa Sandstone has been correlated to the Molteno Formation of the Great Karroo Basin, South Africa and to the Escarpment Grit of the Mid-Zambezi Basin.
The Angwa Sandstone Formation is found in Mozambique, Zambia, Zimbabwe, in the Mana Pools and Cabora Bassa basins.
Form genus: Dadoxylon
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