Marada Gr
Period:
Neogene
Age Interval:
Langhian – Serravallian, Lb1
Province:
Libya
Type Locality and Naming
Column: Tripolitania and Sirte Basin
Synonym:
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Fortino Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Qarqarish Fm
Regional extent
GeoJSON
null
Fossils
Age
Langhian – Serravallian
Age Span:
Beginning stage:
Langhian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
15.99
Ending stage:
Serravallian
Fraction up in the ending stage:
1.0
Ending date (Ma):
11.63
Depositional setting
Interpreted as fluvial deposition, with estuaries draining into lagoons and fringed by offshore bars and barrier beaches.
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.