Mizat Fm
Period:
Proterozoic
Age Interval:
Tonian, B1
Province:
Bukhara-SW Gissar
Type Locality and Naming
Named after the village of Mizat, Tajikistan. O.N. Nikitina et al. in 1993 (460, p. 36-37). Stratotype near the village of Mizat, along the Tupolangdarya River.
Synonym: Mizat Suite, Мизатская св.
Lithology and Thickness
Crystalline schists: biotite, cordierite-biotite, amphibole-biotite, plagiogneisses with lenses of garnet quartzites and amphibolites. Thickness: 700m.
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Underlying formations are unknown
Upper contact
Overlain with angular unconformity by the Urakh Fm.
Regional extent
Core part of the Tupolang Anticline (Tajikistan). In Uzbekistan, in the Southwest Gissar, Urakh Ridge.
GeoJSON
null
Fossils
Age
Age is conditionally accepted as early Proterozoic based on litho-petrographic similarity of these deposits with the formations of the Khodzhabuzbak Fm, Malyand Fm, and Ailyangar Fm, and the development of migmatization and granitization typical for highly metamorphosed Proterozoic rocks of Southwest Gissar (Nikitina et al., 1993). S.K. Ovchinnikov (335), D.A. Rubanov (385) conditionally attributed these formations to the Proterozoic; A.V. Pokrovsky (349), I.M. Mirkhodzhaev et al. (307), V.E. Golovin et al. (1984), A.K. Bukharin et al. (122) consider them Lower Paleozoic; on the State Geological Map-500 of Uzbekistan (460), the suite is conditionally attributed to the Proterozoic.
Age Span:
Beginning stage:
Tonian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
1,000.00
Ending stage:
Tonian
Fraction up in the ending stage:
0.45
Ending date (Ma):
874.00
Depositional setting
Depositional pattern:
Additional Information
Compiler:
B.B. Muxaŭlov – In: GeoGPT translation of: “Abduazimova, Z.M. (Ed.), 2001. Stratigraphic Dictionary of Uzbekistan. IMR (Institute of Mineral Resources), Tashkent, 580 pp. (In Russian)”