Tekro Fm
Period:
Cretaceous
Age Interval:
Albian-Cenomanian
Province:
Al Kufrah Basin
Type Locality and Naming
“Wacrenier (1958) and De Lestang (1965, 1968) described the Tekro Formation to designate the youngest unit in the southern Kufrah Basin in northern Chad.” (Tawadros, 2011). [Upper formation of the Al Kufra Basin version of the Nubian Sandstone Gr.]
Synonym:
References: Tawadros, 2011
Lithology and Thickness
" “It consists of white, red, and brown medium-grained to conglomeratic, massive to cross-bedded sandstones. Its thickness is more than 400 m (1312 ft).
Lithology Pattern:
Coarse-grained sandstone
Relationships and Distribution
Lower contact
It conformably overlies the Chieun Fm.
Upper contact
It is unconformably overlain by the Wadis Deposits Fm.
Regional extent
Only the Al Kufrah Basin.
GeoJSON
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Fossils
“It contains abundant silicified wood such as Dadoxylon.”
Age
“The age of this unit was assumed to be Jurassic to Lower-Upper Creta-ceous, however, it is probably equivalent to the upper argillaceous unit of the Nubiansandstones in the Sirte Basin, or the Sabaya Formation in southwestern Egypt, henceits age could be Albian to Cenomanian.” (Tawadros, 2011)
Age Span:
Beginning stage:
Albian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
113.20
Ending stage:
Cenomanian
Fraction up in the ending stage:
1.0
Ending date (Ma):
93.90
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Enam O. Obiosio, Solomon Joshua Avong and Henry Nasir Suleiman (2024) - Stratigraphic Lexicon compiled from the following books:
Tawadros, 2011, Geology of North Africa (book).