Uralian Provenance Project 2017-2019
This phase of research focused on the evolution of sediment provenance along the Polar and Subpolar Urals during the Late Carboniferous to the Mesozoic, with the aim of resolving regional sediment routing models for the Permian and Triassic.
Main Topics
Biostratigraphical Reviews:
Biostratigraphical reviews of Russian literature were completed to establish stratigraphic frameworks for correlating Permian (Report 1) and Triassic (Report 8) sections across the study region.
Provenance Study of Late Palaeozoic to Mesozoic Sandstones:
The sedimentology and provenance characteristics of Late Carboniferous to Permian strata within the Kos’yu Rogov and Bol’shaya Synya basins, as well as the Polar Urals, are detailed in Reports 2, 4, 5, and 6. Report 6 also provides evidence for the timing of continental collision, ophiolite exhumation, and the development of an extensive Permian sedimentary system that filled the Uralian foreland basin.
Triassic Stratigraphy and Provenance:
Report 8 focuses on the stratigraphy and provenance of Triassic strata in the Bol’shaya Synya Basin. The provenance characteristics are discussed in a regional context, with implications for sediment routing to the southwestern Barents Shelf. In addition, Report 8 provides evidence for a complex geographical and temporal exhumation history along to Polar and Subpolar sectors of the Uralian Orogen, based on detrital apatite geochronology and detrital apatite fission track data.
Origin of Detrital Epidote in Early Triassic Strata:
Report 7 introduces an innovative application of detrital epidote geochemistry to determine the provenance of abundant epidote within Early to Late Triassic sandstones from the Korotaikha Basin.
Provenance of Late Cretaceous Strata and Palaeogeographic Implications:
Report 3 details the provenance characteristics of Early Campanian strata that lie with angular unconformity upon Permian molasse of the Kos’yu Rogov Basin. These Late Cretaceous strata exhibit a distinctly different provenance compared to the Late Carboniferous to Triassic strata in the region.
Materials and Analytical Data
The analytical dataset comprises 129 outcrop samples, which include:
40 petrographic descriptions of sandstones
38 heavy mineral analyses
17 detrital zircon U-Pb analyses
15 combined detrital apatite U-Pb geochronological and geochemical analyses
5 combined detrital rutile U-Pb geochronological and geochemical analyses
13 detrital garnet analyses
10 detrital chrome-spinel analyses
7 detrital epidote geochemical analyses
9 vitrinite reflectance analyses
2 detrital apatite fission track analyses
This dataset is supported by fieldwork conducted at several regionally significant sections along the Vorkuta, Kozhim, and Bol’shaya Synya rivers.
Completed: August 2024.
Contact(s): Mike Curtis
Reports Issued in This Project
- Stratigraphy, sedimentology and multiproxy provenance analysis of Triassic infill of the Bol’shaya Synya Basin: foreland basin to the Subpolar Urals CASP.UPP2017-19.8
- Investigating the potential of epidote geochemistry for sedimentary provenance studies: a case study of Triassic sandstones from the Korotaikha and Bol’shaya Synya basins, Polar to Subpolar Urals, Russia CASP.UPP2017-19.7
- Multiproxy provenance study of Late Carboniferous to Permian sedimentary infill of the foreland basin to the Polar and Subpolar Urals CASP.UPP2017-19.6
- Pilot study of Early Campanian sandstone provenance, Usa River, Polar Urals, Russia CASP.UPP2017-19.5
- Petrography and conventional heavy mineral analysis of Permian strata from the southern Kos’yu-Rogov Basin and Bol’shaya Synya Depression CASP.UPP2017-19.4
- Petrography and conventional heavy minerals of Late Carboniferous to Permian strata of the northern Kos’yu-Rogov Basin and Polar Urals CASP.UPP2017-19.3
- Sedimentology of Permian strata in the Kos’yu-Rogov Basin, Polar and Subpolar Urals region, Russia CASP.UPP2017-19.2
- Permian in the Kos’yu-Rogov Basin, Timan-Northern Ural region, Russia CASP.UPP2017-19.1