Shurfa Tripolitania And Sirte Basin Fm
Period:
Paleogene
Age Interval:
Province:
Libya
Type Locality and Naming
Column: Tripolitania And Sirte Basin
Lithology and Thickness
Shurfa Fm LITHOLOGY= Members: 1. Ammur, or Operculina limestone, which is composed of cavernous dolomitic limestone rich in near-shore large foramanifera. 2. Qaltah (Formerly Gelta or Guelta) chalk, which is comprised of blocky soft chalk, deposited in shallow marine environment. Macrofossils uncommon. 3. Abu Ra (Formerly Bu Ras) marl, well-bedded platy marlstones and chalky limestones which are brecciated and conglomeratic. CALIBRATION = Base of Danian. 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:
Mixed marine
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:
Danian
Fraction up in beginning stage:
0
Beginning date (Ma):
66.04
Ending stage:
Selandian
Fraction up in the ending stage:
1
Ending date (Ma):
59.24
Depositional setting
Depositional pattern:
Additional Information
long: 19 lat: 29
Compiler: