Yebokson Granodiorite Fm
Period:
Cretaceous
Age Interval:
Early Cretaceous
Province:
Myanmar Central Basins
Type Locality and Naming
Central Volcanic Line (Upper Irrawaddy Province), [Original Publication: Barber, A. J., Khin Zaw & Crow, M. J. (eds) 2017. Myanmar: Geology, Resources and Tectonics. Geological Society, London, Memoirs, 48, 143–167]
[Figure: Map showing location of sub-basins of the Central Myanmar Basin (after Myint Thein and M. Maung 2017)]
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Lithology and Thickness
Granodioritic to tonalitic plutons and Batholiths
Lithology Pattern:
Granitic
Relationships and Distribution
Lower contact
This is the oldest unit in the Upper Irrawaddy Province
Upper contact
Conformable with Khanza Chaung Granodiorite Fm
Regional extent
It is developed in Upper Irrawaddy Province.
[Figure: a) Composite stratigraphic correlation of Myanmar Central Basins (after Than et al., 2017)]
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GeoJSON
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Fossils
Age
Early Cretaceous
Age Span:
Beginning stage:
Aptian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
121.40
Ending stage:
Aptian
Fraction up in the ending stage:
0.5
Ending date (Ma):
117.30
Depositional setting
Marine
Depositional pattern:
Additional Information
Compiler:
Naing Maw Than, Kyi Khin and Myint Thein (Than et al., Cretaceous geology of Myanmar and Cenozoic geology in the Central Myanmar Basin, Chapter 7 in Barber, A. J., Khin Zaw & Crow, M. J. (eds) 2017. Myanmar: Geology, Resources and Tectonics. Geological Society, London, Memoirs, 48, 143–167)