Chirchik Gr
Period:
Neogene
Age Interval:
Middle-Late Miocene, CK11
Province:
Chatkal-Kuramin Region
Type Locality and Naming
Along the Chirchik River, Pre-Tashkent region. F.P. Korsakov, 1965 (240, p.88). The term is used with limitations
Synonym: Chirchik Series, Чирчикская сер.
Lithology and Thickness
Divided into two suites: lower - Chatkal Fm and upper – Bogustan Fm. Thickness 140-800m.
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Lies on the Kibray-Neo Fm, Chulin Fm, and Paleogene
Upper contact
It is conformably overlain, sometimes with erosion, by the Murzrabad Gr
Regional extent
Pre-Tashkent region. In the Pre-Tashkent region, it corresponds to the Pskent Fm and Gidzhal Fm.
GeoJSON
null
Fossils
Age
A. assigns it to the Middle-Late Miocene (166). B.I. Pinhasov - to the lower part of the brown-colored molasse formation of the Upper TianShan Gr (Upper Pliocene-Early Pleistocene).
Age Span:
Beginning stage:
Langhian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
15.99
Ending stage:
Tortonian
Fraction up in the ending stage:
1.0
Ending date (Ma):
7.25
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)”