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Primorye Gr
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Primorye Gr base reconstruction

Primorye Gr

Period: 
Cretaceous

Age Interval: 
Late Cretaceous (S-7, S-8, S-9, S-11, S-12)


Province: 
Siberia southeast

Type Locality and Naming

Eastern Sikhote-Alin Basin, Pribrezhnoe Uplift and Southern Primorye Basin. At the Pribrezhnoe Uplift, it is subdivided into a lower Arzamazov Fm, middle Kisina Fm, and upper Monastyrka Fm


Lithology and Thickness

"thick Primorskii Group composed largely of plateau ignimbrites of rhyolites and rhyodacites" (from Sakhno, V.G., Akinin, V.V. First U-Pb dating of volcanics from the East Sikhote-Alin belt. Dokl. Earth Sc. 418, 32–36 (2008). https://doi.org/10.1134/S1028334X0801008X)


Lithology Pattern: 
Volcanic ash


Relationships and Distribution

Lower contact

Disconformity depending upon region onto Sabuin Fm (Sabulin Fm), Sinancha Fm, Dadanshari Fm; but conformable onto Dostoevka Fm (which has age similar to lower Primorye Gr elsewhere) at Arseniev depression of southern Primorye Basin (S-11; NE of Vladivostok).

Upper contact

Disconformity depending upon region; overlain by Samarga Fm, Siyanov Fm, Dorofeevka Fm

Regional extent

Widespread in Eastern Sikhote-Alin Basin, Pribrezhnoe Uplift and Southern Primorye Basin


GeoJSON

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Fossils


Age 


Age Span: 

    Beginning stage: 
Turonian

    Fraction up in beginning stage: 
0.25

    Beginning date (Ma): 
92.77

    Ending stage: 
Campanian

    Fraction up in the ending stage: 
0.5

    Ending date (Ma):  
77.91

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)