TienShan Orogenic Super Gr

Period:

Quaternary, Paleogene

Age Interval:

Oligocene-Eopleistocene, CK11

Province:
Chatkal-Kuramin Region

Type Locality and Naming

In the Tien Shan mountain system. S.S. Shulz, 1948 (510, p.93).

Synonym: Tien Shan Orogenic Complex, Tian Shan Orogenic Complex, Тяньшанский орогенический компл.

Lithology and Thickness

Includes dislocated Cenozoic molasses of the Tien Shan, without Pleistocene-Holocene terrace complex. Divided into three sequentially alternating series: Lower TienShan Gr (Oligocene-Middle Miocene); Middle TienShan Gr (Upper Miocene-Lower Pliocene) and Upper TienShan Gr (Upper Pliocene-Early Pleistocene). The series correspond to three formations: Lower - red-colored molasse; Middle - gray-colored salt-gypsum (evaporite); Upper - brown-colored molasse. Thickness 6000-7000m.

Lithology Pattern:

Siltstone

Relationships and Distribution

Lower contact

It lies on the Eocene and all older mountains up to the Paleozoic.

Upper contact

Regional extent

Intermontane depressions of the Tien Shan, foothill zone.

GeoJSON

null

Fossils

Age

The age dating of the series is based on the complex of mammals (see series). Oligocene-Eopleistocene. S.S. Shulz (510), who identified the complex, considered it Neogene-Quaternary. B.I. Pinhasov (145) included in it the Oligocene-Miocene Kyrgyz red-colored complex (444; 510) and limited it to the Early Pleistocene.

Age Span:

Beginning stage:

Rupelian

Fraction up in beginning stage:

0.0

Beginning date (Ma):

33.90

Ending stage:

Calabrian

Fraction up in the ending stage:

1.0

Ending date (Ma):

0.77

Depositional setting

Depositional pattern:

Additional Information

Compiler:

B.I. Pinhasov – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”