Dzhuskuduk Fm
Type Locality and Naming
Along the village of Dzhus-Kuduk, Bukantau Mountains, Central Kyzylkum. Yu.A. Likhachev, 1963 (266, p. 48).
Synonym: Dzhuskuduk Suite, Джускудукская св.
Lithology and Thickness
Organogenic and pelitomorphic limestones of gray, light, dark gray, and brownish-gray color with interlayers of dolomites. According to Ya.B. Aysanov et al., in the lower part of the section, there is a basal layer of bauxite-bearing rocks, thickness up to 0.4 m. In the area of the village of Nazik, the frequent interbedding of brachiopod limestones with coral limestones is characteristic. Thickness of formation is 120-150 m.
Relationships and Distribution
Lower contact
Along the bedding, it lies on limestones of the Middle-Upper Devonian
Upper contact
It is unconformably [is overlain by] the conglomerates of the Akoy Fm (460).
Regional extent
Central Kyzylkum, Bukantau Mountains. Along Ya.B. Aysanov et al. (1984), it is exposed in the form of narrow sublatitudinal strips on the southern slope and in the watershed part of the Irlyrskaya carbonate ridge, in the form of small remnants of the tectonic cover, it is developed in the northern foothill part of the western end of the Bukantau Mountains, as well as at the eastern end of S. Bukantau in the area of the village of Nazik.
GeoJSON
Fossils
In limestones, brachiopods - Echinoconchus punctatus Mart., Dielasma attenuatum Mart., Schizophoria cf. resupinata Mart., characteristic of the Tournaisian stage, corals - Lithostrotion caespitosum Mart., L. kirgisensis Gorsk., L. irregulare Phill. and foraminifera - Endothyra cf. globulus (Eichw.) of Visean age (Aysanov et al., 1976, 1981; 266; 439).
Age
Depositional setting
Additional Information