Khyrsbulak Fm
Period:
Cretaceous
Age Interval:
Turonian, U6
Province:
Ustyurt-Sultanuzdag
Type Locality and Naming
Along the spring of Khysrbulak on the shore of Lake Sultan-Sandjar. A.I. Smolko, 1934 (422, p.48). Stratotype not specified.
Synonym: Khysrbulak Suite, Хырсбулакская св.
Lithology and Thickness
Coastal marine gray formations. Clays, siltstones, sandstones with layers of limestones. Thickness 170-254m.
Lithology Pattern:
Sandy_claystone
Relationships and Distribution
Lower contact
Conformably overlies the Sultan-Sandjar Fm
Upper contact
Overlain by the Laulau Fm with signs of erosion
Regional extent
Pitnyak uplift, Northwest (southwest?) Kyzylkum.
GeoJSON
null
Fossils
Contains marine bivalve mollusks Inoceramus labiatus Schloth., Liostrea ljangarensis Vinok., L. jaxartensis Vinok. Foraminifera - Gaudryiinopsis akrabatensis (Zhuk.), Ammomarginulina amudariensis Zhuk., Vialovia serabulakensis Suleim., Paragaudryina babaevi Suleim.
Age
Age n. - sr Turonian. According to A., - Turonian (422),
Age Span:
Beginning stage:
Turonian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
93.90
Ending stage:
Turonian
Fraction up in the ending stage:
0.7
Ending date (Ma):
90.74
Depositional setting
Depositional pattern:
Additional Information
Compiler:
I.M. Abdurazimova – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”