The Karelian Craton in the Paleoproterozoic: New paleomagnetic data
Tóm tắt
New paleomagnetic data on Paleoproterozoic complexes of the Central Karelian and Vodlozero terranes of the Karelian Craton were obtained. A new key paleomagnetic pole (1.98 Ga) was calculated for rocks of the Vodlozero terrane. The positions of Central Karelian and Vodlozero terranes 1.98 Ga ago in subtropical and moderate latitudes of the Northern Hemisphere, respectively, were reconstructed. The latitudinal difference (1.98 Ga) between the positions of Central Karelian and Vodlozero terranes supports the existence of oceanic basins between separate terranes of the Karelian Craton.
Tài liệu tham khảo
Bleeker, W., Hamilton, M.A., Ernst, R.E., and Kulikov, V.S., The search for Archean-Paleoproterozoic supercratons: New constraints on Superior-Kola correlations within supercraton Superia, including the first ca. 2504 Ma (Mistassini) ages from Karelia, in Proc. 33nd IGG, Oslo, 2008.
Bogdanova, S.V., Gintov, O.B., Kurlovich, D.M., et al., Late Paleoproterozoic mafic dyking in the Ukrainian Shield of Volgo-Sarmatia caused by rotations during the assembly of supercontinent Columbia (Nuna), Lithos, 2013, vol. 174, pp. 196–216.
Buchan, K.L., Mertanen, S., Park, R.G., et al., Comparising the drift of Laurentia and Baltica in the Proterozoic: The importance of key paleomagnetic poles, Tectonophysics, 2000, vol. 319, no. 3, pp. 167–198.
Enkin, R.J., A Computer Program Package for Analysis and Presentation of Paleomagnetic Data, Sidney: Pacific Geosc. Centre. Ceol. Surv. Canada, 1994.
Fedotova, M.A., Khramov, A.N., Pisakin, B.N., and Priyatkin, A.A., Early Proterozoic palaeomagnetism: New results from the intrusives and related rocks of the Karelian, Belomorian, and Kola Provinces, Eastern Fennoscandian Shield, Geop. J. Int., 1999, vol. 137, pp. 691–712.
Filippov, N.B., Trofimov, N.N., Golubev, A.I., et al., New geochronological data on the KoikarySvjatnavolok and Pudozhgora gabbro-dolerite intrusives, in Geologiya i poleznye iskopaemye Karelii. Vyp. 10 (Geology and Mineral Resiurses of Karelia. Iss. 10), Petrozavodsk: KarNTs RAN, 2007, pp. 49–68.
Kirschevink, J.L., The least-squares line and plane and the analysis of paleomagnetic data, Geophys. J.R. Astr. Soc., 1980, vol. 62, pp. 699–718.
Kolodyazhnyi, S.Yu., Strukturno-kinematicheskaya evolyutsiya yugo-vostochnoi chasti Baltiiskogo shchita v paleoproterozoe (Paleoproterozoic structural kinematic evolution of the Southeastern part of the Baltic Shield), Moscow: GEOS, 2006 [in Russian].
Lahtinen, R., Huhma, H., Kontinen, A., et al., New constraints for the source characteristics, deposition and age of the 2.1−1.9 Ga metasedimentary cover at the western margin of the Karelian Province. Original Research Article, Precambrian Res., 2010, vol. 176, pp. 77–93.
Lubnina, N.V., Remagnetization in the rocks of the East European Craton: tectonic zoning and geodynamic indicators, Vestn. KRAUNTs, 2009, no. 2, pp. 325–353.
Lubnina, N., Mertanen, S., Soderlund, U., et al., A new key pole for the East European Craton at 1452 Ma: Palaeomagnetic and geochronological constraints from mafic rocks in the Lake Ladoga Region (Russian Karelia), Precambrian Res., 2010a, vol. 183, no. 3, pp. 442–462.
Lubnina, N., Nilsson, M., Soderlund, U., and Ernst, R., Unexpected ca. 1970 Ma age for a dyke swarm in the Lake Onega Region: Links with the regional Pechenga-Onega event, in Reconstruction of Supercontinents Back to 2.7 Ga Using the Large Igneous Province (LIP) Record: With Implications for Mineral Deposit Targeting, Hydrocarbon Resource Exploration and Earth System Evolution, Geol. Surv. of Canada. Ottawa, Canada, 2010b, Rep. A7, pp. 1–6.
Malashin, M.V., Golubev, A.I., Ivannikov, V.V., et al., Geochemistry and petrology of Lower Proterozoic mafic volcanic complexes of Karelia. 1. Yatulian trap complex, Vestn. SPbGU, Ser. 7: Geol., Geogr., 2003, Iss. 1, no. 7, pp. 3–32.
Onezhskaya paleoproterozoiskaya struktura (geologiya. tektonika, glubinnoe stroenie i mineralogiya) (The Onega Plaeoproterozoic Structure (Geology, Tectonic, Deep Structure, amd Mineralogy), Petrozavodsk: KarNTs RAN, 2011 [in Russian].
Paleomagnitologiya (Paleomagnetology), Leningrad: Nedra, 1982 [in Russian].
Rannii dokembrii Baltiiskogo shchita (Early Precambrian of the Baltic Shield), St. Petersburg: Nauka, 2005 [in Russian].
Reading the Archive of Earth’s Oxygenation. Vol. 1: The Paleoproterozoic of Fennoscandia as Context for the Fennoscandian Arctic Russia—Drilling Early Earth Project., Berlin Heidelberg: Springer-Verlag, 2013.
Reddy, S.M. and Evans, D.A.D., Palaeoproterozoic super-continents and global evolution: correlations from core to atmosphere, Geol. Soc. London Spec. Publ., 2009, vol. 323, pp. 1–26. doi: 10.1144/SP323.1.
Slabunov, A.I., Lobach-Zhuchenko, S.B., Bibikova, E.V., et al., The Archean of the Baltic Shield: Geology, geochronology, and geodynamic settings, Geotektonika, 2006, no. 6, pp. 3–32.
Zijederveld, J.D.A., Demagnetization of rocks: analysis of results, in Methods in Paleomagnetism, Amsterdam, 1967, pp. 254–286.