Chatkal Fm
Period:
Neogene
Age Interval:
middle Miocene, CK11
Province:
Chatkal-Kuramin Region
Type Locality and Naming
Along the Chatkal Range. V.N. Weber, 1929 (136, p.876). Lower formation of the Chirchik Gr. The term is used in a limited sense.
Synonym: Chatkal Suite, Чаткальская св.
Lithology and Thickness
Red-brown clays and siltstone (aleurolites) with layers of sandstones and conglomerates. M. up to 300 m.
Lithology Pattern:
Siltstone
Relationships and Distribution
Lower contact
Lies with erosion on the Chulin Fm
Upper contact
It is conformably overlain by the Bogustan Fm.
Regional extent
Prishashkent district. According to B.I. Pinhasov, - upper Pliocene, correlated with the Pskent Fm and Gidzhal Fm.
GeoJSON
null
Fossils
Contains gastropods and plant remains - Rhimatoderma dvenvali Wart., Populus sp., Chara sp., Betula.
Age
Age, according to A., - conditionally middle Miocene (166, 444).
Age Span:
Beginning stage:
Langhian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
15.99
Ending stage:
Langhian
Fraction up in the ending stage:
1.0
Ending date (Ma):
13.82
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)”