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Molohein Gr
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Molohein Gr base reconstruction

Molohein Gr

Period: 
Cambrian

Age Interval: 
Early-Late Cambrian


Province: 
Myanmar Shan Region

Type Locality and Naming

Shan South Plateau, The Late Cambrian rocks exposed in the northern and central parts of the Pindaya range were classified by Myint Lwin Thein (IGCP 1977) who named them the Molohein Group after Molohein Peak (2221 m) in Lawksawk township (Myint Lwin Thein 1973), a group which he later informally subdivided into the Pandung Fm and the succeeding Myetye Fm. [Original Publication: Barber, A. J., Khin Zaw & Crow, M. J. (eds) 2017. Myanmar: Geology, Resources and Tectonics. Geological Society, London, Memoirs, 48, 317-342]


Lithology and Thickness

Sandstone. Predominantly arenaceous and argillaceous strata with subordinate calcareous sediments


Lithology Pattern: 
Clayey sandstone


Relationships and Distribution

Lower contact

Conformable with Myetye Fm

Upper contact

Conformable with Pandung Fm

Regional extent

This Gr is developed in South State of Shan Plateau.


GeoJSON

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Fossils

Saukiid trilobites


Age 

Early-Late Cambrian[Figure: Stratigraphical correlation of the Cambrian–Devonian rocks of Myanmar Shan region with those of northern Thailand and NW Malaysia. Asterisks indicate the levels at which fossils useful in correlation were found (after Aung&Cocks, 2017)]

Age Span: 

    Beginning stage: 
Wuliuan

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
509.00

    Ending stage: 
Paibian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
494.20

Depositional setting

Shallow-marine environment.


Depositional pattern:  


Additional Information


Compiler:  

Aye Ko Aung and L. Robin M. Cocks (Aung & Cocks, Cambrian–Devonian stratigraphy of the Shan Plateau, Myanmar (Burma), Chapter 14 in Barber, A. J., Khin Zaw & Crow, M. J. (eds) 2017. Myanmar: Geology, Resources and Tectonics. Geological Society, London, Memoirs, 48, 317-342).