Kugitang Gr

Along the Kugitangtau Range, Southwest Gissar. N.V. Beznosov, V.V. Kurbatov in 1980, V.V. Kurbatov, E.A. Repman, 1982 (253, p.42) used the name of the series, proposed by a group of authors, 1971 (51, p.23) for the Jurassic carbonate formation.

Synonym: Kugitang Series, Кугитангская сер.

Various limestones, marls, terrigenous rocks, from which genetic groups of deposits have been distinguished, uniting spatially related genetic types of corresponding suites:

(a) Shallow sea (open shelf) with normal water salinity - Zarmas Fm - includes reef and reef-bar complexes of late Callovian and early Oxfordian;

(b) Inner, moderately deep-water part of the sea basin - Zakharlin Fm - includes middle Oxfordian reef complexes and isolated reef masses of the Gaurdak Fm type;

(c) Relatively deep-water lagoons with water salinity close to normal, connected to the sea basin - Guzhum-Tyubegatan Fm;

(d) Shallow, closed (barred) shelf – Kurek Fm;

(e) Coastal plains (lagoons) with slightly increased water salinity - Tupolang Fm.

Total Thickness 650-820m.

In 1971 (51), the authors distinguished the Kugitang Gr, including, in addition to the upper part of the Baysun-Jur Fm, four more suites with "bedded structure":

- organogenic-oolitic limestones and marls with interlayers of clays and siltstone (aleurolites). Thickness 20-120m (early Callovian);

- organogenic-oolitic, nodular, and pelitomorphic limestones. Thickness 80-205m (lower Oxfordian);

- oolitic and nodular-lumpy limestones. Thickness 70-160m (lower Oxfordian);

- pelitomorphic organogenic, nodular, and algal-coral limestones, gypsum-bearing. Thickness 60-130m (late Oxfordian).

Contains ammonites, marine bivalve mollusks, brachiopods, foraminifers, sea urchins, corals, spores and pollen, Dinosaur tracks (see Zarmas Fm, Zakharlin Fm, Guzhum-Tyubegatan Fm, Kurek Fm, and Tupolang Fm).