Kaynarbulak Formation

Kaynarbulak Fm

Period:

Paleogene

Age Interval:

Upper Paleocene-Lower Eocene (Thanetian-Ypresian), CK11

Province:
Chatkal-Kuramin Region

Type Locality and Naming

By native Kainarbulak, foothills of the Karatau Range. V.A. Bykadorov, S.M. Blaykhova, E.M. Loseva et al., 1974 (123, p.64).

Synonym:

Lithology and Thickness

Green, dark gray, black, gray clays, locally opokoid sandy with interlayers of sandstones, siltstone (aleurolites). Up to 55 m.

Lithology Pattern:

Sandy_claystone

Relationships and Distribution

Lower contact

Conformably overlies the Kaplanbek Fm or transgressively overlies various Cretaceous formations.

Upper contact

Conformably overlain by the Syurenbatin Fm

Regional extent

Pritashkent district, Kyzylkum. Correlated with the Givar Fm (Acarinina subsphaerica, A. acarinata, Globorotalia aragonensis zones) North Central Gissar.

GeoJSON

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Fossils

Contains marine bivalve mollusks - Ostrea bellowacina trinkleri Böhmi., O. turkarensis Rasulov, O. rarilamella (Desh.); foraminifers Ammomarginulina macrospira N. Byk., Haplophragmoides grzybowski Mjatl., Trochammina ispharensis N. Byk., Gaudryina ossipovae N. Byk., Textularia plummerae (Laliek); pollen complex - Trudopolis parootrudens R. Pot., Triatriopollenites exelsus R. Pot., T. confusus Zakl.

Age

Belongs to the upper Paleocene-lower Eocene.

Age Span:

Beginning stage:

Thanetian

Fraction up in beginning stage:

0.5

Beginning date (Ma):

57.62

Ending stage:

1.0

Fraction up in the ending stage:

Ending date (Ma):