| Zaouïa Formation | |
| Period: | Darriwilian |
| Age: | Middle Ordovician |
| Type: | Geological formation |
| Prilithology: | Metamorphosed mudstone |
| Otherlithology: | Tuff |
| Underlies: | Djurdjura Limestone |
| Overlies: | Akaoudj Tuff |
| Coordinates: | 36.9°N 4°W |
| Paleocoordinates: | -72.8°N 98.3°W |
| Region: | Tizi Ouzou Province |
| Country: | Algeria |
| Extent: | Localized west of Aissa Mimoun Mountain |
| Namedfor: | Zaouïa of Stita |
| Location Ts: | Sidi Namaane |
| Coordinates Ts: | 36.7681°N 4.0317°W |
The Zaouïa Formation, also known as the Zaouïa Schists,[1] is a Middle Ordovician (Darriwilian) geologic formation in Algeria. The formation crops out in the Aïssa Mimoun Massif near Zaouïa of Stita at the confluence of Wadi Stita and Wadi Seba at about 5km (03miles) northeast of Tizi-Ouzou in the municipality of Makouda, in the Kabylian Mountains of northern Algeria. The type locality is about 29km (18miles) away from the Katian outcrops of northern Djurdjura.
The Zaouïa Formation consists of slightly metamorphosed green or grey micaceous mudstones with many intercalated tuff beds.[2]
The following fossils were reported from the formation:[3]