Hasawnah Fezzan Basin Fm
Period:
Cambrian
Age Interval:
Province:
Libya
Type Locality and Naming
Column: Fezzan Basin
Lithology and Thickness
Hasawnah Fm LITHOLOGY= Subdivided into three units: a lower layer with a basal conglomerate of quartz pebbles (2m thick) overlain by massive banks of cross-bedded sandstone (fluvial and deltaic), a middle fine-grained siltstone layer (intertidal and subtidal), and an upper unit of massive cross-bedded quartz sanstone (offshore bars). CALIBRATION = Base of the Cambrian. 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:
Fortunian
Fraction up in beginning stage:
0
Beginning date (Ma):
538.80
Ending stage:
Tremadocian
Fraction up in the ending stage:
1
Ending date (Ma):
477.08
Depositional setting
Depositional pattern:
Additional Information
long: 15 lat: 28
Compiler: