Severyanka Fm
Period:
Cretaceous
Age Interval:
Late Cretaceous (S-3)
Province:
Siberia southeast
Type Locality and Naming
Western Sikhote-Alin.
Synonym: Severyanka unit (official name on chart)
Lithology and Thickness
Altered volcanic rocks?
Lithology Pattern:
Volcanics
Relationships and Distribution
Lower contact
Disconformity onto Zalomnaya Fm (Zalomnaya unit)
Upper contact
Not given
Regional extent
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[137.6,49.4],[134.6,48],[133.9,46.5],[135.3,46.8],[136.3,48],[137.2,48.6],[137.6,49.4]]]]}}
Fossils
Age
Age Span:
Beginning stage:
Campanian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
77.91
Ending stage:
Maastrichtian
Fraction up in the ending stage:
1.0
Ending date (Ma):
66.04
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Igor N. Kosenko, Jingeng Sha and Boris N. Shurygin (2021). Upper Mesozoic stratigraphy of Sikhote-Alin (Russian Far East) and northeastern China: Non-marine and marine correlations. Part 1: Upper Jurassic-Hauterivian AND 2. Barremian-Aptian. Cretaceous Research, 124: articles 104811 (https://doi.org/10.1016/j.cretres.2021.104811) AND 104812 (https://doi.org/10.1016/j.cretres.2021.104812)