Beshimah Tripolitania And Sirte Basin Fm
Period:
Paleogene
Age Interval:
Province:
Libya
Type Locality and Naming
Column: Tripolitania And Sirte Basin
Lithology and Thickness
Beshimah Fm LITHOLOGY= Members: 1. Rawaghah (Ruaga) chalk, composed of hard, massive dolomite and chalky dolomite. Occasionally brecciated and contains chert nodules and silicious limestone lenses 2. Wadi Zhakim (Formerly the Fluscolina limestone), which is chalky limestone and dolomite, deposited in a shallow marine environment and 3. Khier (Khayir) marl, which is composed of chalky gypsiferous marl and thin dolomitic limestone layers. CALIBRATION = Base of Thanetian. 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:
Dolomitic limestone
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:
Selandian
Fraction up in beginning stage:
1
Beginning date (Ma):
59.24
Ending stage:
Ypresian
Fraction up in the ending stage:
0.5
Ending date (Ma):
52.04
Depositional setting
Depositional pattern:
Additional Information
long: 19 lat: 29
Compiler: