Darnah Cyrenaica Basin Fm
Period:
Paleogene
Age Interval:
Province:
Libya
Type Locality and Naming
Column: Cyrenaica Basin
Lithology and Thickness
Darnah Fm LITHOLOGY= Darnah (Derna) Fm - 100m of nummulitic and reefal limestones, which contain fossils of corals, algae, and nummulites. Also contains massive beds of chalky limestone in some regions, with occasional marl partings. The upper part of this unit is represented by several cycles of shoal and channel facies. CALIBRATION = 50% Up in Lutetian. 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:
Limestone
Relationships and Distribution
Lower contact
Upper contact
Regional extent
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[24,28],[23,27],[24,26],[25,27],[24,28]]]]}}
Fossils
Age
Age Span:
Beginning stage:
Lutetian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
44.55
Ending stage:
Priabonian
Fraction up in the ending stage:
0
Ending date (Ma):
37.71
Depositional setting
Depositional pattern:
Additional Information
long: 24 lat: 27
Compiler: