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Zaouïa Formation

Coordinates: 36°54′N 4°00′E / 36.9°N 4.0°E / 36.9; 4.0
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Zaouïa Formation
Stratigraphic range: Middle Ordovician
468–461 Ma
TypeGeological formation
UnderliesDjurdjura Limestone
OverliesAkaoudj Tuff
Lithology
PrimaryMetamorphosed mudstone
OtherTuff
Location
Coordinates36°54′N 4°00′E / 36.9°N 4.0°E / 36.9; 4.0
Approximate paleocoordinates72°48′S 98°18′E / 72.8°S 98.3°E / -72.8; 98.3
RegionTizi Ouzou Province
CountryAlgeria
ExtentLocalized west of Aissa Mimoun Mountain
Type section
Named forZaouïa of Stita
LocationSidi Namaane
Coordinates36°46′05″N 004°01′54″E / 36.76806°N 4.03167°E / 36.76806; 4.03167
Zaouïa Formation is located in Algeria
Zaouïa Formation
Zaouïa Formation (Algeria)

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 5 kilometres (3.1 mi) northeast of Tizi-Ouzou in the municipality of Makouda,[2] in the Kabylian Mountains of northern Algeria. The type locality is about 29 kilometres (18 mi) away from the Katian outcrops of northern Djurdjura.[3]

Description

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The Zaouïa Formation consists of slightly metamorphosed green or grey micaceous mudstones with many intercalated tuff beds.[3]

Fossil content

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The following fossils were reported from the formation:[2]

See also

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References

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  1. ^ Zaouïa Schists at Mindat.org
  2. ^ a b Zaouïa of Stita at Fossilworks.org
  3. ^ a b Makhlouf et al., 2017, p.301
  4. ^ Makhlouf et al., 2017, p.302

Bibliography

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  • Makhlouf, Y.; Lefebvre, B.; Nardin, E.; Nedjari, A.; Paul, C.R.C. (2017), "The diploporite blastozoan Lepidocalix pulcher from the Middle Ordovician of northern Algeria: Taxonomic revision and palaeoecological implication", Acta Palaeontologica Polonica, 62: 299–310, doi:10.4202/app.00286.2016, retrieved 2020-05-29