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Tmed al Ksour Formation
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Tmed al Ksour Fm base reconstruction

Tmed al Ksour Fm


Period: 
Paleogene

Age Interval: 
Lutetian – Bartonian, Lb1


Province: 
Libya

Type Locality and Naming

Column: Tripolitania and Sirte Basin; Middle formation in Wadi Thamit Gr

Synonym:


Lithology and Thickness

White chalky limestone that is highly porous and often cavernous.


Lithology Pattern: 
Chalk


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates the next older unit as Al Gata Chalk Fm

Upper contact

Regionally, the schematic strat column indicates the next younger unit as Qararat al Jifah Marl Fm

Regional extent


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[16.77,28.92],[17.75,23.9],[18.77,23.18],[19.83,23.81],[20.54,23.72],[21.92,24.26],[23.03,26.98],[23.27,30.13],[21.58,30.61],[20.73,31.1],[20.43,32.4],[20.36,33.26],[19.37,33.11],[18.07,33.46],[18.09,34.15],[17.64,35.35],[16.6,34.88],[14.9,33.89],[13.92,32.67],[15.59,31.26],[15,30.64],[16.77,28.92]]]]}}

Fossils

Faunal fossils include gastropods and pelecypods.


Age 

Lutetian – Bartonian

Age Span: 

    Beginning stage: 
Lutetian

    Fraction up in beginning stage: 
0.5

    Beginning date (Ma): 
44.55

    Ending stage: 
Bartonian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
37.71

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Chart derived from: USGS Correlation Chart and Columnar Section for Rocks in Libya, 1963. Descriptions from: Hallet, Don: Petroleum Geology of Libya, 2002.