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Beddahach Formation
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Beddahach Fm base reconstruction

Beddahach Fm


Period: 
Neogene

Age Interval: 
Aquitanian – Burdigalian, Lb3


Province: 
Libya

Type Locality and Naming

Column: Cyrenaica Basin

Synonym:


Lithology and Thickness

Chalky limestone


Lithology Pattern: 
Chalk


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates the next older unit as Greir Bu Hascic Fm

Upper contact

Regionally, the schematic strat column indicates the next younger unit as Porto Bardia 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


Age 

Aquitanian – Burdigalian

Age Span: 

    Beginning stage: 
Aquitanian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
23.04

    Ending stage: 
Burdigalian

    Fraction up in the ending stage: 
0.5

    Ending date (Ma):  
18.22

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.