Cenozoic

Cretaceous

Jurassic

Triassic

Permian

Carboniferous

Devonian

Silurian

Ordovician

Cambrian

Neoproterozoic

Main source = Baratov, R.B., et al. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Publishing House "Donish", Dushanbe, 269 pp. plus tables. Provided by Dr. Jovid Aminov, Nazarbayev University, Astana, Kazakhstan Translated to English by the GeoGPT group, Zhejiang Lab, Hangzhou, China--see About

Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple

Sarez Formation

Sarez Fm

Period:

Proterozoic, Cambrian, Ordovician, Silurian, Devonian, Carboniferous

Age Interval:

Ediacaran – Middle Carboniferous (C_1-2Sr), BMP1; P1

Province:
East Tajik (Central Pamir)

Type Locality and Naming

Includes in Bozbaital horst - Murghab basin, Karasu silver-Pangazdjilga thrust sheet. It was identified under this name by E. Ya. Leven in 1959, previously described by P. P. Chuenko, M. I. Shabalkin, A. N. Mayorov, et al. (Geol. USSR, vol. 24, 1959).

Synonym: Sarez suite, Сарезская свита

Reference section:

Lithology and Thickness

Composed of alternating, often metamorphosed, dark gray claystones, feldspathic-quartz sandstones, and argillaceous shales containing rare layers of andesites and limestones. Incomplete thickness is 2000 m.

Lithology Pattern:

Sandy_claystone

Relationships and Distribution

Lower contact

The lower part of the suite is not exposed

Upper contact

It is overlain with an angular unconformity by carbonate deposits of the Karachatur horizon of the lower Permian - Ladinian stage of the Middle Triassic (Kalaktash Fm and Dzhilgakul Fm) (калакташакая и джилrакульская свиты). According to Rutte et al., 2017, the lithology column indicates the upper contact as Mukurkain Fm.

Regional extent

It is widespread in the Central Pamir.

GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[72.71,38.53],[72.93,38.59],[73.1,38.57],[73.22,38.52],[73.27,38.49],[73.34,38.39],[73.4,38.39],[73.45,38.42],[73.57,38.4],[73.82,38.38],[74.09,38.31],[74.21,38.35],[74.29,38.36],[74.53,38.42],[74.56,38.39],[74.5,38.36],[74.35,38.31],[74.5,38.21],[74.57,38.19],[74.66,38.17],[74.72,38.06],[74.87,37.97],[75.11,37.73],[75.05,37.73],[74.97,37.81],[74.92,37.82],[74.85,37.88],[74.83,37.9],[74.68,37.91],[74.6,37.95],[74.47,38.11],[74.36,38.18],[74.3,38.23],[74.22,38.24],[74.2,38.23],[74.11,38.25],[73.82,38.28],[73.7,38.27],[73.65,38.28],[73.47,38.25],[73.32,38.26],[73,38.26],[73,38.27],[73.18,38.31],[73.38,38.32],[73.38,38.33],[73.23,38.33],[73.18,38.44],[73.13,38.47],[72.77,38.48],[72.71,38.53]]]]}}

Fossils

Organic remains in the suite are rare and do not allow for accurate age determination.

Age

Organic remains in the suite are rare and do not allow for accurate age determination. It is conditionally assigned to the Carboniferous based on its position in the section below layers with lower Permian fauna. Apparently, the most correct are the views of G. S. Voskonyants and I. V. Pyzyanov (1972), who understand the Sarez "suite" as deposits of various ages, from Proterozoic to Carboniferous inclusive. V. I. Dranov and S. V. Ruzentsev, as a result of their 1967 work, consider the Sarez suite to be Upper Proterozoic. This suite is among the least studied geological objects of the Pamir.Rutte et al., 2017 indicated Ediacaran to Middle Carboniferous for field map, hence considered that for Lexicon.

Age Span:

Beginning stage:

Ediacaran

Fraction up in beginning stage:

0.0

Beginning date (Ma):

635.00

Ending stage:

Moscovian

Fraction up in the ending stage:

1.0

Ending date (Ma):

307.02

Depositional setting

Depositional pattern:

Additional Information

Compiler:

Extracted from Rutte, D., L. Ratschbacher, S. Schneider, K. Stübner, M. A. Stearns, M. A. Gulzar, and B. R. Hacker (2017), Building the Pamir-Tibetan Plateau—Crustal stacking, extensional collapse, and lateral extrusion in the Central Pamir: 1. Geometry and kinematics, Tectonics, 36, 342–384, doi:10.1002/2016TC004293, Extracted from Baratov, R. B. (1976). Subdivisions of stratified and intrusive rocks of Tajikistan. Donish, Dushanbe, 276.