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Paung Chaung Formation
Click to display on map of the Ancient World at:
Paung Chaung Fm base reconstruction

Paung Chaung Fm

Period: 
Cretaceous

Age Interval: 
Late Cretaceous


Province: 
Myanmar Central Basins

Type Locality and Naming

Minbu-Salin Basin, Paung Chaung section, Pane Chaung section. [Original Publication: Barber, A. J., Khin Zaw & Crow, M. J. (eds) 2017. Myanmar: Geology, Resources and Tectonics. Geological Society, London, Memoirs, 48, 219–260]

[Figure: Map showing location of sub-basins of the Central Myanmar Basin (after Myint Thein and M. Maung 2017)]


Lithology and Thickness

Clayey limestone. The Fm is composed of dark shale, intercalated with dark-brown well-bedded limestones, with an oily aroma: 60% limestone, shale 30% and sand 10%. Thickness is recorded as 30 m (100 ft) in the Paung Chaung section, but 934 m (3000 ft) thick in the Pane Chaung section.


Lithology Pattern: 
Clayey limestone


Relationships and Distribution

Lower contact

Unconformable with Orbitolina Limestone Fm

Upper contact

The upper boundary is faulted against the Kabaw Fm.

Regional extent

This Fm is developed in Minbu-Salin basin.

[Figure: a) Composite stratigraphic correlation of Myanmar Central Basins (after Than et al., 2017)]


GeoJSON

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Fossils


Age 

Late Cretaceous

Age Span: 

    Beginning stage: 
Campanian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
83.65

    Ending stage: 
Campanian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
72.17

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Than Htut, Kapesa Lokho, D.S.N.Raju and Ravi Misra (Than Htut, Myanmar petroleum systems, including the offshore area, Chapter 11 in Barber, A. J., Khin Zaw & Crow, M. J. (eds) 2017. Myanmar: Geology, Resources and Tectonics. Geological Society, London, Memoirs, 48, 219–260)