Toutash Fm
Period:
Cambrian, Ordovician
Age Interval:
Late Cambrian - the beginning of the Early Ordovician (O2-3?), T1
Province:
East Tajik (NE Pamir)
Type Locality and Naming
Includes in Turzguny-Terezki thrust sheet
Synonym: Totash formation, тоуташскую свиты, Toutash Fm
Reference section:
Lithology and Thickness
The lower, Toutash Fm (280 m) is formed by interbedded slates, sandstones, and limestones; the latter predominate at some points in the section.
Lithology Pattern:
Sandy limestone
Relationships and Distribution
Lower contact
The contact with the underlying Isiiskaja Fm is conformable.
Upper contact
Regional extent
GeoJSON
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Fossils
In the above-mentioned lithology, spherical colonies of algae of the genus Radiophycus are found
Age
The fossil data characterizes the end of the Late Cambrian - the beginning of the Early Ordovician.
Age Span:
Beginning stage:
Cambrian Stage 10
Fraction up in beginning stage:
0.0
Beginning date (Ma):
491.00
Ending stage:
Tremadocian
Fraction up in the ending stage:
0.2
Ending date (Ma):
484.90
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.