Marada Tripolitania And Sirte Basin Fm
Period:
Neogene
Age Interval:
Province:
Libya
Type Locality and Naming
Column: Tripolitania And Sirte Basin
Lithology and Thickness
Marada Fm LITHOLOGY= Interpreted as fluvial deposition, with estuaries draining into lagoons and fringed by offshore bars and barrier beaches. The formation is comprised of clastic sequences and cross-bedded fluvial sandstones, with intercalations of siltstone, clays, and trace gypsum. Members include the calcareous sandstones and sandy limestones of the Ar Rahlah, and the lower Qarat Jahannam. Important vertebrate fossils have been recovered from this formation, including crocodiles, pigs, giraffes, and mastodons. CALIBRATION = Base of Langhian. 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":[[[[19,30],[18,29],[19,28],[20,29],[19,30]]]]}}
Fossils
Age
Age Span:
Beginning stage:
Langhian
Fraction up in beginning stage:
0
Beginning date (Ma):
15.99
Ending stage:
Serravallian
Fraction up in the ending stage:
1
Ending date (Ma):
11.63
Depositional setting
Depositional pattern:
Additional Information
long: 19 lat: 29
Compiler: