Hongmao Fm
Period:
Cretaceous
Age Interval:
Early Cretaceous, (43a)
Province:
Guangdong, Hainan
Lithology and Thickness
Mainly fine-grained sandstone. Implied by description of Baowan Fm to have volcanics in uppermost part. About 50 m thick in Baisha Basin.
Lithology Pattern:
Fine-grained sandstone
Relationships and Distribution
Lower contact
Conformable onto Namei Fm (lower Lumuwan Gr).
Upper contact
Regional extent
Mainly occurs in the Baisha-Ledong, Yangjiang-Qionghai, Changpo-Dongjiang, Leiming and Sanya basins of the Hainan Island
GeoJSON
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Fossils
Age
Aptian to Early Albian
Age Span:
Beginning stage:
Albian
Fraction up in beginning stage:
0.2
Beginning date (Ma):
110.66
Ending stage:
Albian
Fraction up in the ending stage:
0.7
Ending date (Ma):
104.31
Depositional setting
Depositional pattern:
Additional Information
Compiler: