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Can Tho Formation

Can Tho Fm

Period: 
Neogene

Age Interval: 
Pliocene N21, (29)


Province: 
West Nam Bo

Type Locality and Naming

The type section is located at borehole LK.8 drilled in Can Tho City (x = 11°11’; y = 105°47’).

Synonym: Hệ tầng Cần Thơ: Lê Đức An et al. 1981; Nguyền Ngợc Hoa et al. 1996; Trịnh Dánh (in Vũ Khúc 2000).


Lithology and Thickness

Reference section: (1). (361-317 m): yellowish-grey, brown-grey quartz sandstone and gritstone, at 340-331 m sandstone becomes fine-grained, containing the Globigerinidae foraminifer, 44 m thick. (2). (317-275 m): yellow to browmish, fine-grained silty sandstone containing some pebble and grit mainly of quartz and some chcrt, 42 m thick. The total thickness of the formation in this section is 86 m.


Lithology Pattern: 
Fine-grained sandstone


Relationships and Distribution

Lower contact

Unconformably rests upon Paleozoic beds (Hon Chong Fm) in reference section. But usually it unconformably rests upon the Phung Hiep Fm (late Miocene)

Upper contact

Unconformably underlies the Nam Can Fm.

Regional extent


GeoJSON

null

Fossils

Eunotia monodon, Cyclotella notata, Paralia varenarum, Aulacosira granúlala, Navícula cuspidata.


Age 

Early Pliocene.

Age Span: 

    Beginning stage: 
Zanclean

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
5.34

    Ending stage: 
Zanclean

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
3.60

Depositional setting


Depositional pattern:  

Additional Information


Compiler:  

Tran Van Tri and Vu Khuc (Editors; Geology and Earth Resources of Viet Nam, General Dept. of Geology and Minerals of Viet Nam; completed in Dec., 2011), with additional details from Tong-Dzuy Thanh and Vu Khuc (Editors; Stratigraphic Units of Viet Nam, 2nd edition; 2011; English edited by A. Boucot).