Paleomagnetism of paleozoic sediments from the Kozhim River section: On the problem of palinspastic reconstructions of the Subpolar Urals and Pai-Khoi
Tóm tắt
The collections of the Silurian, Devonian, Carboniferous, and Early Permian rocks from the Kozhim River section in the Subpolar Urals are studied. It is established that the pre-Permian Paleozoic deposits from the Kozhim River were remagnetized during the Kiama hyperchron (C2-P2) probably due to magnetoviscous processes that were blocked as these sediments were leaving the zone of increased temperature during the collision between the East European Platform and the Urals. The thrusts that took place at the last stage of this collision rendered the paleomagnetic directions of the studied structures different from those extrapolated from the East European Platform. The estimates of local rotations and displacements are obtained and applied in the combined analysis with the paleomagnetic determinations for the Pai-Khoi Ridge and Subpolar Urals. The amplitudes of the thrusts average 260 km and 180 km for the structures of Pai-Khoi and Subpolar Urals, respectively. The reconstruction of the prethrusting layout of the studied structures is presented.
Tài liệu tham khảo
Chadima, M. and Hrouda, F., Remasoft 3.0—a User-Friendly Paleomagnetic Data Browser and Analyzer, Travaux Géophysiques, 2006, vol. XXVII, pp. 20–21.
Chermnykh, V.A., Stratigrafiya karbona Severa Urala (Stratigraphy of Carboniferous of the North Ural), Leningrad: Nauka, 1976.
Dembovskii, B.Ya., Dembovskaya, Z.P., Klyuzhina, M.L., and Nasedkina, V.A., Ordovik Pripolyarnogo Urala (Ordovician of the Near-Polar Ural), Sverdlovsk: UrO AN SSSR, 1990.
Enkin, R.J., A Computer Program Package for Analysis and Presentation of Palaeomagnetic Data, Sidney: Pacific Geosci. Centre, Geol. Survey Canada, 1994.
Enkin, R.J., The Direction-Correction Tilt Test: an All-Purpose Tilt/Fold Test for Paleomagnetic Studies, Earth Planet. Sci. Lett., 2003, vol. 212, pp. 151–166.
Eremenko, N.M., Zhuravlev, A.V., Popov, V.V., Iosifidi, A.G., Khramov, A.N., Vevel’, Ya.A., and Nikolaev, A.I., Upper Devonian-Lower Carboniferous Section in the Area of Talota River, Timan-Pechora Province: the Lithologic, Biostratigraphic and Paleomagnetic Study Results, Neftegaz. Geol. Teoriya Praktika, 2009, no. 4. http://www.ngtp.ru/4/45-2009.pdf
Geodinamicheskaya karta SSSR i prilegayushchikh akvatorii, M 1: 2500000 (Geodynamical Map of the USSR and Adjacent Water Areas, 1:2500000), Zonenshain, L.P., Mezhelovskii, N.V., and Natapov, L.M., Eds., Moscow: Min-Geo SSSR, 1988.
Iosifidi, A.G. and Khramov, A.N., On the Herzynian Deformations in the Near-Polar Ural, Fiz. Zemli, 1995, no. 11, pp. 48–54.
Iosifidi, A.G. and Khramov, A.N., Paleomagnetism of Upper Carboniferous and Lower Permian Deposits of the East European Platform: A Key Paleomagnetic Pole and Kinematics of Collision with the Urals, Izv. Phys. Solid Earth, 2002, vol. 38, no. 5, pp. 389–403.
Iosifidi, A.G., Khramov, A.N., Trapeznikova, G.V., and Pukhonto, S.K., Paleomagnetism of Early Permian Deposits of the Pechora Plate: Evidence for Horizontal Rotations of Structures, Izv. Phys. Solid Earth, 2005, vol. 41, no. 2, pp. 142–155.
Iosifidi, A.G. and Khramov, A.N., Paleomagnetism of Permian and Triassic of the Pai-Khoi Ridge and Polar Ural: on the Problem of Horizontal Deformations, in Paleomagnetizm Osadochnykh Basseinov Severnoi Evrazii (Paleomagnetism of Sedimentary Basins of North Eurasia), Khramov, A.N., Ed., 2007, pp. 65–69.
Iosifidi, A.G., Khramov, A.N., Sadykova, A.A., Trapeznikova, G.V., and Pukhonto, S.K., Magnetostratigraphy and Magnetotectonics of Lower Triassic Continental Deposits on the NW Slope of the Pai-Khoi Ridge, Izv. Phys. Solid Earth, 2007, vol. 43, no. 10, pp. 868–879.
Iosifidi, A.G. and Khramov, A.N., Magnetostratigraphy of Upper Permian Sediments in the Southwestern Slope of Pai-Khoi (Khei-Yaga River Section): Evidence for the Global Permian-Triassic Crisis, Izv. Phys. Solid Earth, 2009, vol. 45, no. 1, pp. 3–13.
Iosifidi, A.G. and Khramov, A.N., Neftegaz. Geol. Teoriya Praktika, 2010, vol. 5, no. 2. http://www.ngtp.ru/rub/4/21_2010.pdf
Kuklev, V.P., Pichugin, I.V., Podmarkov, A.V., Pukhonto, S.K., Timonina, N.V., and Trapeznikova, G.V., Atlas permskikh uglei Pechorskogo basseina (Atlas of Permian Coals of the Pechora Coal Basin), Moscow: Nauchn. mir, 2000.
Kuznetsov, N.B., Shipunov, S.V., and Pavlenko, T.I., Late Paleozoic Tectonic Activation of the Urals, in Obshchie i regional’nye voprosy geologii (General and Regional Issues of Geology), Savel’eva, G.N. and Nikolaev, V.G., Eds., Moscow: GEOS, 2000, vol. 2, pp. 91–106.
Kuz’kokova, N.N., Mikhailova, Z.P., Chermnykh, V.A., Enokyan, N.V., Gus’kov, V.A., Virbitskas, A.B., Manaeva, G.G., Sosipatova, G.L., and Shurekov, N.A., Opornyi razrez nizhnei permi r. Kozhim (Reference Section of the Lower Permian at Kozhim River), Syktyvkar, 1980.
Mezhdunarodnyi kongress “Permskaya sistema mira”. Putevoditel’ geologicheskikh ekskursii (Int. Congr. on Global Distribution of the Permian Deposits: a Guide for Geological Excursions), Sverdlovsk, 1991, vol. 5.
Musin, R.M., On the Rotation of the Karatau Structural Complex, South Ural, IV Vsesoyuznyi s”ezd po geomagnetizmu. Tez. dokl. (Abstr. IV All-Union Meet. on Geomagnetism), Souzdal, 1991, vol. 2, p. 149.
Opornye razrezy granitsy siluriiskikh i devonskikh otlozhenii Arkticheskogo Urala (Reference Sections of the Silurian-Devonian Boundary for the Deposits of the Arctic Ural), Tsiganenko, V.S. and Chermnykh, V.A., Eds., Syktyvkar: AN SSSR, 1983.
Paleomagnitnye napravleniya i paleomagnitnye polyusa. Dannye po SSSR. Vyp. 5 (Paleomagnetic Directions and Paleomagnetic Poles: Materials on the USSR Territory, no. 5), Khramov, A.N., Ed., Moscow: MTsD-B, 1982. http://paleomag.ifz.ru/books.html
Paleomagnitnye napravleniya i polozheniya paleomagnitnykh polyusov. Dannye po SSSR. Svodnyi katalog 1 (Paleomagnetic Directions and Positions of the Paleomagnetic Poles: Materials on the USSR Territory, Sumarized Catalog), Khramov, A.N., Ed., Moscow: MGK AN SSSR, 1984. http://paleomag.ifz.ru/books.html
Paleomagnitnye napravleniya i paleomagnitnye polyusa. Dannye po SSSR. Vyp. 6 (Paleomagnetic Directions and Paleomagnetic Poles: Materials on the USSR Territory, no. 6), Khramov, A.N., Ed., Moscow: MTsD-B, 1986. http://paleomag.ifz.ru/books.html
Paleomagnitnye napravleniya i paleomagnitnye polyusa. Dannye po SSSR. Vyp. 7 (Paleomagnetic Directions and Paleomagnetic Poles: Materials on the USSR Territory, no. 7), Khramov, A.N., Ed., Moscow: MTsD-B, 1989. http://paleomag.ifz.ru/books.html
Paleomagnetizm paleozoya (Paleomagnetism of the Paleozoic), Khramov, A.N., Goncharov, G.I., Komissarova, R.A., et al., Eds., Leningrad: VNIGRI, 1974.
Paleomagnitologiya (Paleomagnetology), Khramov, A.N., Goncharov, G.I., Komissarova, R.A., et al., Eds., Leningrad: Nedra, 1982.
Pan-Arctic Palaeozoic Tectonics, Evolution of Basins and Faunas: Subpolar Urals Field Trip Guidebook, Supplement to Special Publication 6 of Ichthyolith Issues, Antoshkina, A., Malysheva, E., and Mannik, P., Eds., Syktyvkar, 2000.
Popov, V.V., JR-4 PC Interface, 2007. http://paleo-mag.ifz.ru/soft.html
Popov, V.V., JR-5 PC Interface, 2008. http://paleomag.ifz.ru/soft.html
Rzhevskii, Yu.S., The Palinspatic Scheme of the Tadjik Basin from the Paleomagnetic Data, Dokl. Akad. Nauk Tadzh. SSR, 1977, vol. 20, no. 2, pp. 42–44.
Timonin, N.I., Yudin, V.V., and Belyaev, A.A., Paleogeodinamika Pai-Khoya (Paleogeodynamics of the Pai-Khoi Ridge), Yekaterinburg: UrO RAN, 2004.
Watson, G.S. and Enkin, R.J., The Fold Test in Palaeomagnetism as a Parameter Estimation Problem, Geophys. Res. Lett., 1993, vol. 20, pp. 2135–2138.
Yudin, V.V., Orogenez severa Urala i Pai-Khoya (Orogenesis of the Urals and the Pai-Khoi Ridge), Yekaterinburg: UIF Nauka, 1994.
Zhuravlev, A.V., Paleothermomety of the Upper Famennian—Tournaisian Deposits of the North Ural from Conodonts Color Index, Tezisy odinnadtsatoi Komi respublikanskoi molodezhnoi nauchnoi konferentsii, Syktyvkar, 1990 (Abstr. Eleventh Conf. of the Komi Republic for Young Scientists), Syktyvkar, 1990, p. 89.
Zhuravlev, A.V., Color Indexes for Conodonts of the Upper-Lower Carboniferous of the North Ural and Their Geological Interpretation, Geologiya i mineral’no-syr’evye resursy evropeiskogo severo-vostoka Rossii. XII Geologicheskaya konferentsiya Respubliki Komi (XII Geologicheskaya konferentsiya Respubliki Komi on Geology and Mineral Resources of the Northeast European Part of Russia), Syktyvkar, 1993, vol. 2, pp. 46–47.
Zhuravlev, A.V., Vevel’, Ya.A., Iosifidi, A.G., Tomsha, V.A., and Chermnykh, V.A., Upper Devonian-Lower Carboniferous Section at Kostyanoi Cape, Vaigach Is., Neftegaz. Geol. Teoriya Praktika, 2011, vol. 6, no. 1. http://www.ngtp.ru/rub/2/6_2011.pdf
Zonenshain, L.P., Kuz’min, M.I., and Natapov, L.M., Tektonika litosfernykh plit territorii SSSR (Plate Tectonics within the USSR Territory), 2 vols., Moscow: Nedra, 1990.