Huobashan Gr
Period:
Cretaceous
Age Interval:
Early Cretaceous, K1hbG, (39a)
Province:
Jiangxi
Type Locality and Naming
The Huobashan Group was named by the Bureau of Geology and mineral resources of Jiangxi in 1984. The type locality is in Huobashan of the Yiyang County. The key section is the Lengshuiwu section in Zhongban of the Yiyang County, Jiangxi (117º22'42″, 28º32'30″).
Lithology and Thickness
The Huobashan Group is composed of grayish green, grayish yellow, brownish red thick-bedded sandstone, gravel-bearing sandstone, silty mudstone and mudstone.
Lithology Pattern:
Sandstone
Relationships and Distribution
Lower contact
This group is unconformably overlying on the volcanic rocks of the Wuyi Gr.
Upper contact
This group is unconformably underlying the Ganzhou Gr.
Regional extent
GeoJSON
null
Fossils
This group yields fossils of bivalves, conchostracan, ostracod, fish and plant.
Age
Age Span:
Beginning stage:
Valanginian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
137.70
Ending stage:
Aptian
Fraction up in the ending stage:
0.8
Ending date (Ma):
114.84
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Wan Xiaoqiao