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Taungnyo Formation
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Taungnyo Fm base reconstruction

Taungnyo Fm

Period: 
Carboniferous

Age Interval: 
Late Carboniferous


Province: 
Myanmar SE, Myanmar SE Peninsula

Type Locality and Naming

Karen–Tenasserim Unit - North, Karen–Tenasserim Unit - South (Phuket Terrain), [Original Publication: Barber, A. J., Khin Zaw & Crow, M. J. (eds) 2017. Myanmar: Geology, Resources and Tectonics. Geological Society, London, Memoirs, 48, 365-384]


Lithology and Thickness

Fine-grained sandstone, Claystone and Sandstone. Comprising (in descending order): Well-bedded, soft, fine-grained, calcareous sandstone with gastropods, brachiopods, polyzoans, corals and ostracods (Late Carboniferous), 30 m thick. Grey and yellow shale, 150 m thick. Dark, hard, fine- to medium-grained, well-bedded sandstone c. 45 m thick.


Lithology Pattern: 
Fine-grained sandstone


Relationships and Distribution

Lower contact

This is the oldest Formation in the unit.

Upper contact

Conformable with Kogwe Mudstone Fm

Regional extent

In the Mae Sot area of Thailand (Ueno & Charoentitirat 2011), the Taungnyo Fm correlates with the Pharaka Fm.


GeoJSON

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Fossils

Gastropods, brachiopods, polyzoans, corals and ostracods


Age 

Late Carboniferous

Age Span: 

    Beginning stage: 
Moscovian

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
315.15

    Ending stage: 
Gzhelian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
298.89

Depositional setting

Shallow-marine water environment.


Depositional pattern:  


Additional Information


Compiler:  

Michael F. Ridd (Michael F. Ridd, Karen–Tenasserim Unit Chapter 16 in Barber, A. J., Khin Zaw & Crow, M. J. (eds) 2017. Myanmar: Geology, Resources and Tectonics. Geological Society, London, Memoirs, 48, 365-384).