Paleomagnetism of the Permian-Triassic Boundary of the Orenburg Region (East European Platform, Volga-Ural Anteclise)
This article presents the results of a detailed paleomagnetic study of five sections of the Permian-Triassic sedimentary rocks from the southeastern part of the Volga-Ural anteclise in the East European Platform (Orenburg region, Russia): Boevaya Gora, Vyazovka, Sambulak, Krasnogor, and Vozdvizhenka...
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| Format: | Article |
| Language: | English |
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Kazan Federal University
2024-01-01
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| Series: | Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki |
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| Online Access: | https://uzakuesc.elpub.ru/jour/article/view/40 |
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| author | A. M. Fetisova R. V. Veselovskiy V. K. Golubev |
| author_facet | A. M. Fetisova R. V. Veselovskiy V. K. Golubev |
| author_sort | A. M. Fetisova |
| collection | DOAJ |
| description | This article presents the results of a detailed paleomagnetic study of five sections of the Permian-Triassic sedimentary rocks from the southeastern part of the Volga-Ural anteclise in the East European Platform (Orenburg region, Russia): Boevaya Gora, Vyazovka, Sambulak, Krasnogor, and Vozdvizhenka. The magnetic fabric determined by magnetic susceptibility anisotropy indicates that the rocks accumulated under the conditions of intense hydrodynamic activity. This makes it possible to reconstruct a predominantly submeridional transport of detrital material. The rocks of the Boevaya Gora section have a bipolar distribution of the characteristic component of their remanent magnetization, while other sections show a reversed polarity. In the Vyazovka section, the E/I method was used to calculate the inclination shallowing coefficient of the rocks (f = 0.79). The regional fold test yielded positive results, suggesting that the rocks of the studied sections were displaced after the deposition. For each section, paleomagnetic poles were calculated, with the poles of the Boevaya Gora and Vyazovka sections being the most reliable. The mean paleomagnetic pole coordinates of the studied sections, except the Sambulak section, are as follows: slat = 51.7°, slong = 55.8°, n = 4, plat = 48.5°, plong = 173.4°, α95 = 3.4°, paleolat = 23.4°. |
| first_indexed | 2024-03-08T11:06:14Z |
| format | Article |
| id | doaj.art-4cf65e4f424f4db28545a3845622aba5 |
| institution | Directory Open Access Journal |
| issn | 2542-064X 2500-218X |
| language | English |
| last_indexed | 2024-04-24T22:59:05Z |
| publishDate | 2024-01-01 |
| publisher | Kazan Federal University |
| record_format | Article |
| series | Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki |
| spelling | doaj.art-4cf65e4f424f4db28545a3845622aba52024-03-17T16:27:33ZengKazan Federal UniversityUčënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki2542-064X2500-218X2024-01-01165459060510.26907/2542-064X.2023.4.590-60539Paleomagnetism of the Permian-Triassic Boundary of the Orenburg Region (East European Platform, Volga-Ural Anteclise)A. M. Fetisova0R. V. Veselovskiy1V. K. Golubev2Lomonosov Moscow State University; Schmidt Institute of Physics of the Earth, Russian Academy of SciencesLomonosov Moscow State University; Schmidt Institute of Physics of the Earth, Russian Academy of SciencesBorissiak Paleontological Institute, Russian Academy of SciencesThis article presents the results of a detailed paleomagnetic study of five sections of the Permian-Triassic sedimentary rocks from the southeastern part of the Volga-Ural anteclise in the East European Platform (Orenburg region, Russia): Boevaya Gora, Vyazovka, Sambulak, Krasnogor, and Vozdvizhenka. The magnetic fabric determined by magnetic susceptibility anisotropy indicates that the rocks accumulated under the conditions of intense hydrodynamic activity. This makes it possible to reconstruct a predominantly submeridional transport of detrital material. The rocks of the Boevaya Gora section have a bipolar distribution of the characteristic component of their remanent magnetization, while other sections show a reversed polarity. In the Vyazovka section, the E/I method was used to calculate the inclination shallowing coefficient of the rocks (f = 0.79). The regional fold test yielded positive results, suggesting that the rocks of the studied sections were displaced after the deposition. For each section, paleomagnetic poles were calculated, with the poles of the Boevaya Gora and Vyazovka sections being the most reliable. The mean paleomagnetic pole coordinates of the studied sections, except the Sambulak section, are as follows: slat = 51.7°, slong = 55.8°, n = 4, plat = 48.5°, plong = 173.4°, α95 = 3.4°, paleolat = 23.4°.https://uzakuesc.elpub.ru/jour/article/view/40paleomagnetismeast european platformpermiantriassicpaleomagnetic poleorenburg region |
| spellingShingle | A. M. Fetisova R. V. Veselovskiy V. K. Golubev Paleomagnetism of the Permian-Triassic Boundary of the Orenburg Region (East European Platform, Volga-Ural Anteclise) Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki paleomagnetism east european platform permian triassic paleomagnetic pole orenburg region |
| title | Paleomagnetism of the Permian-Triassic Boundary of the Orenburg Region (East European Platform, Volga-Ural Anteclise) |
| title_full | Paleomagnetism of the Permian-Triassic Boundary of the Orenburg Region (East European Platform, Volga-Ural Anteclise) |
| title_fullStr | Paleomagnetism of the Permian-Triassic Boundary of the Orenburg Region (East European Platform, Volga-Ural Anteclise) |
| title_full_unstemmed | Paleomagnetism of the Permian-Triassic Boundary of the Orenburg Region (East European Platform, Volga-Ural Anteclise) |
| title_short | Paleomagnetism of the Permian-Triassic Boundary of the Orenburg Region (East European Platform, Volga-Ural Anteclise) |
| title_sort | paleomagnetism of the permian triassic boundary of the orenburg region east european platform volga ural anteclise |
| topic | paleomagnetism east european platform permian triassic paleomagnetic pole orenburg region |
| url | https://uzakuesc.elpub.ru/jour/article/view/40 |
| work_keys_str_mv | AT amfetisova paleomagnetismofthepermiantriassicboundaryoftheorenburgregioneasteuropeanplatformvolgauralanteclise AT rvveselovskiy paleomagnetismofthepermiantriassicboundaryoftheorenburgregioneasteuropeanplatformvolgauralanteclise AT vkgolubev paleomagnetismofthepermiantriassicboundaryoftheorenburgregioneasteuropeanplatformvolgauralanteclise |