Tadrart Sandstone Fezzan Basin Fm
Period:
Devonian
Age Interval:
Province:
Libya
Type Locality and Naming
Column: Fezzan Basin
Lithology and Thickness
Tadrart Sandstone Fm LITHOLOGY= USGS Chart places this formation at the base of the Lower Devonian, in the Siegenian stage. Massive continental to marginaly-marine, cross-bedded sandstones with plant fossils found throughout the lower unit and trace fossils in the top unit. Depositional envronment ranges from subtidal to intertidal and continental. CALIBRATION = Base of Lochkovlan. REFERENCE = Chart derived from: USGS Correlation Chart and Columnar Section for Rocks in Libya, 1963. Descriptions from: Hallet, Don: Petroleum Geology of Libya, 2002.
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
Upper contact
Regional extent
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[15,29],[14,28],[15,27],[16,28],[15,29]]]]}}
Fossils
Age
Age Span:
Beginning stage:
Lochkovian
Fraction up in beginning stage:
0
Beginning date (Ma):
419.00
Ending stage:
Emsian
Fraction up in the ending stage:
0.2
Ending date (Ma):
407.30
Depositional setting
Depositional pattern:
Additional Information
long: 15 lat: 28
Compiler: