Borehole Lms Fm
Period:
Cretaceous
Age Interval:
Maastrichtian, U2
Province:
Ustyurt-Sultanuzdag
Type Locality and Naming
Predominantly limestones, Khorezm Depression. I.M. Abdazimova in 1996.
Synonym: Limestone Topitsa, Известняковая т.
Lithology and Thickness
Gray oolitic limestones, marls, and calcareous clays. Thickness 60-92m.
Lithology Pattern:
Oolitic limestone
Relationships and Distribution
Lower contact
Overlies Borehole Terrigenous Fm with erosion
Upper contact
It is overlain by Paleocene with erosion.
Regional extent
Boreholes. Used in the legend of the Priaral Subseries for geological maps of the 1: 200000, 1998 scale.
GeoJSON
null
Fossils
Contains foraminifera - Brotzenella praeacuta (Vass.), Br. complata (Reuss.), Hanzawaia ekblomi (Brotz.), Cibicidoides bembix (Marss.), Globotruncana morozovae Vass., Bolivina incrassata incrassata Reuss., Bolivinoides draco (Vass.).
Age
Belongs to the Maastrichtian.
Age Span:
Beginning stage:
Maastrichtian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
72.17
Ending stage:
Maastrichtian
Fraction up in the ending stage:
0.5
Ending date (Ma):
69.11
Depositional setting
Depositional pattern:
Additional Information
Compiler:
I.M. Abdazimova – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”