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Jafnayn Formation
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Jafnayn Fm base reconstruction

Jafnayn Fm


Period: 
Paleogene

Age Interval: 
Selandian – Ypresian, On2


Province: 
Oman

Type Locality and Naming

Column: Oman Outcrop

Synonym:


Lithology and Thickness

Limestone


Lithology Pattern: 
Limestone


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates the next older unit as Muthaymimah Fm

Upper contact

Regionally, the schematic strat column indicates the next younger unit as Rysayl Fm

Regional extent


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[56.15,23.5],[56.22,21.16],[55,19.52],[53.68,17.23],[54.82,17.54],[56.96,19.98],[57.95,21.28],[58.45,22.8],[57.19,22.87],[56.15,23.5]]]]}}

Fossils


Age 

Selandian – Ypresian

Age Span: 

    Beginning stage: 
Selandian

    Fraction up in beginning stage: 
0.6

    Beginning date (Ma): 
60.21

    Ending stage: 
Ypresian

    Fraction up in the ending stage: 
0.4

    Ending date (Ma):  
52.83

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

From Forbes, G.A., Hansen, H.S.M., and Shreurs, J., 2010. Lexicon of Oman: Subsurface Stratigraphy. Gulf Petrolink, 371 pp. (plus enclosures and CD); and Middle East Geological Timescale 2008 Al-Husseini, Journal of Middle East Petroleum Geosciences v 13. no. 4