Nha Be Fm
Type Locality and Naming
The type section is established on the basis of material from borehole 12 at a depth of 198-235 m, situated near the Dong Diem Canal, Nha Be District, Ho Chi Minh City (E = 10°42’; E = 106°45’). It was named by
Synonym: Hệ tầng Nhà Bè: Bùi Phú Mỹ, Trịnh Dánh (in Trịnh Dánh 1985); Bùi Phú Mỹ 1992; Trinh Dánh 1993, (in Vũ Khúc et al.) 2000; Nguyền Ngọc Hoa et al. 1996.
Lithology and Thickness
Conglomerate to Siltstone: (1). White-grey conglomerate and sandstone, about 20 m thick. (2). White-grcy to brown-grey sandstone and siltstone, 17 m thick. The total thickness of the formation in this section is 37 m.
Relationships and Distribution
Lower contact
Unconformably rests upon the Binh Trung Fm
Upper contact
Conformably underlies the Ba Mieu Fm
GeoJSON
Fossils
The Dalbergia Assemblage (D. beíỉa, D. cf. rectinervis, Pistacia donzaoensis, etc.) and sporomorphs with the following characteristic forms: Cystopteris sp., Polypodiaceae gen. indet., Gỉeichenia sp., Ginkgo sp., Castanópsis sp., Rubiaceae gen. indet., Rhizophora sp., Sabai sp., Calamus sp., etc.
Age
Depositional setting
It is interpreted as a
Additional Information