Wang, Zhanlei Guo, Bingzheng Jiang, Chan Qi, Lin Jiang, Yuqiang Gu, Yifan Fu, Yonghong Liang, Demin
Published in
Frontiers in Earth Science
The Lower Permian Shanxi Formation in the Eastern Ordos Basin is a set of transitional facies shale, and it is also a key target for shale gas exploration in China. Based on lithofacies classification by X-ray diffraction and kerogen type identification, nanoscale reservoir space, pore volume, pore size distribution, surface area, and fractal chara...
Novak, Matevž Krainer, Karl
Published in
Austrian Journal of Earth Sciences
The Rigelj Formation is a new lithostratigraphic unit of the Lower Permian Rattendorf Group in the Karavanke Mountains. The Formation is up to 105 m thick and mainly composed of siliciclastic and fossiliferous carbonate sediments that are entirely of shallow-marine setting. Conglomerates are interpreted as shoreface deposits, sandstones as deposits...
Afanasieva, M. S.
Published in
Paleontological Journal
AbstractA study of Lower Permian radiolarians from the Kondurovka and Verkhneozernoe sections, located on the right bank of the Sakmara and Ural rivers on the western slope of the South Urals, was carried out. Analysis of the distribution of 104 species of radiolarians in the study area made it possible to establish three successive ecozones in the...
Aristov, D. S. Rasnitsyn, A. P. Naugolnykh, S. V.
Published in
Paleontological Journal
AbstractPermian Blattinopsida in the Vorkuta Group of the Pechora Basin (Komi Republic, northern Russia) are reviewed. Glaphyrophlebia komia sp. nov., G. vorkutensis sp. nov., and G. borea sp. nov. are described from the Inta Formation. The taxonomic composition of plants in the Kungurian-Ufimian interval is analyzed for the Pechora Basin in compar...
Maslov, A. V. Mizens, G. A. Badida, L. V. Krupenin, M. T.
Published in
Geochemistry International
The Uralian foredeep is a classical marginal structure located on the foreland of the Late Paleozoic Uralian Orogen. It is subdivided into several depressions/sedimentation basins. This paper presents the analysis of the REE and Th distribution in the Middle Carboniferous and Lower Permian clay rocks of the Yuryuzan–Sylva Depression. This structure...
Afanasieva, M. S.
Published in
Paleontological Journal
AbstractAnalysis of the morphology of radiolarian skeletons from the Asselian and Sakmarian of the South Urals allowed the taxonomic assignment of seven species of the order Albaillellaria, established by Kozur (1981) and Nazarov (in Isakova and Nazarov, 1986). Spinodeflandrella tetraspinosa is here assigned to the genus Albaillella: A. tetraspinos...
Kutygin, R. V.
Published in
Paleontological Journal
AbstractRepresentatives of the family Medlicottiidae (Ammonoidea) from the Permian of the Verkhoyansk Region are revised. Medlicottiids in the region are represented only by the subfamily Uddenitinae and are only known from four stratigraphic levels in the Lower Permian. Prouddenites evolutus sp. nov., representing the terminal phase of the morphog...
Zhemchugova, V. A. Evdokimov, N. V. Poort, J. Akhmanov, G. G.
Published in
Lithology and Mineral Resources
AbstractOrganogenic buildups named as carbonate mounds are widespread in Lower Permian deposits in the northern Timan–Pechora basin and are of great interest to the oil-and-gas industry as natural hydrocarbon reservoirs. Their distribution and textural features were controlled by seabed morphology, sea level changes, and specific paleoecology of th...
Evdokimov, N. V. Zhemchugova, V. A.
Published in
Moscow University Geology Bulletin
AbstractLower Permian organogenic buildups in the north of the Timan–Pechora basin are mound-type structures, whose deposits are characterized by an extremely irregular distribution of reservoir properties due to facial zoning and genetic features. Two types of buildup, skeletal and microbial, were distinguished based on the dominant limestone lith...
Sinitshenkova, N. D.
Published in
Paleontological Journal
AbstractTwo new species of the family Spilapteridae, Homaloneura brauckmanni sp. nov. and Baeoneura desperata sp. nov. are described from the Lower Permian insect bearing deposits of the Vorkuta Coal Basin. For Vorkutoneura variabilis Sinitshenkova, 1977 (Spilapteridae), the imaginal forewing and nymphal hindwings are described for the first time. ...
