Abstract
The paper reports new isotope-geochemical data on Late Paleocene-Early Eocene basalts from the central part of the Kolyuchin-Mechigmen graben, eastern Chukotka Peninsula. The distribution of the major and trace elements and trace-element ratios indicates that the basalts were formed in a marginal-continental rift setting. The peculiar feature of the basalts is a combination of depleted within-plate and suprasubduction geochemical signatures, which make the volcanic rocks from Mt. Otdel’naya different from rocks of suprasubduction volcanic belts and from tholeiites and alkaline lavas of continental rifts and oceanic islands. Extremely high 87Sr/86Sr ratios in the studied basalts as compared to those of similar volcanic rocks from extension zones are probably related to the involvement of carbonate material in the magma generation zone.
Similar content being viewed by others
References
Akinin, V.V. and Apt, Yu.E., Enmelenskie vulkany (Chukotskii poluostrov): petrologiya shchelochnykh lav i glubinnykh vklyuchenii (Enmelen Volcanoes, Chukchi Peninsula: Petrology of Alkaline Lavas and Deep-Seated Inclusions), Magadan: SVKNII DVO RAN, 1994.
Akinin, V.V., Sobolev, A.V., Ntaflos, Th., and Richter, W., Clinopyroxene megacrysts from Enmelen melanephelinitic volcanoes (Chukchi Peninsula, Russia): application to composition and evolution of mantle melts, Contrib. Mineral. Petrol., 2005, vol. 150, pp. 85–101.
Akinin, V.V., Andronikov, A.V., Mukasa, S.B., and Miller, E.L., Cretaceous lower crust of the continental margins of the Northern Pacific: petrological and geochronological data on lower to middle crustal xenoliths, Petrology, 2013, vol. 21, no. 1, pp. 28–65.
Andreev, T.A., Migovich, I.M., and Smirnov, V.N., Seismicity of Northeast USSR and its relation with geological structures and neotectonics, in Geofizicheskie issledovaniya struktury i geodinamika zemnoi kory i verkhnei mantii Severo-Vostoka SSSR (Geophysical Studies of Structure and Geodynamics of the Earth’s Crust and Upper Mantle of Northeast USSR), Magadan, 1979, pp. 113–127.
Apt, Yu.E., Akinin, V.V., and Wright, J.E., Sr, Nd, and Pb isotopes in Neogene melanephelinites and deep-seated xenoliths from Northeast Russia, Geochem. Int., 1998, vol. 36, no. 1, pp. 28–37.
Baldridge, W.S., Perry, F.V., and Gladney, E.S., Petrology and geochemistry of the Cat Hills volcanic field, central Rio Grande Rift, New Mexico, Geo-Mar. Lett., 1982, vol. 93, no. 7, pp. 635–643.
Le Bas, M.J., Le Maitre, R.W., Streckeisen, A., and Zanettin, B.A., Chemical classification of volcanic rocks based on the total alkali-silica diagram, J. Petrol., 1986, vol. 27, pp. 745–750.
Belyi, V.F., Beringian volcanic province, Tikhookean. Geol., 1995, vol. 14, no. 4, pp. 82–86.
Bogdanov, N.A., Khain, V.E., and Shipilov, E.V., Systems of Cenozoic rifts of the East Arctic and its possible significance, Dokl. Akad. Nauk, 1995, vol. 345, no. 1, pp. 84–86.
Dungan, M.A., Lindstrom, M.M., McMillan, N.J., et al., Open system magmatic evolution of the Taos plateau, volcanic field, northern New Mexico. 1. Petrology and geochemistry of the Serviletta basalt, J. Geophys. Res., 1986, vol. 96.
Faure, G., Principles of Isotope Geology, New York: Wiley, 1986.
Fedorov, P.I., Filatova, N.I., and Dvoryankin, A.I., Cenozoic volcanism of the east Koryak Highland (Northeast Russia) and its geodynamic setting, Tikhookean. Geol., 1996, no. 3, pp. 3–14.
Fedorov, P.I. and Filatova, N.I., Geochemistry and petrology of Late Cretaceous and Cenozoic basalts from extensional zones at the continental margin of northeastern Asia, Geochem. Int., 1999, vol. 37, no. 2, pp. 91–107.
Fedorov, P.I., Kainozoiskii vulkanizm v zonakh rastyazheniya na vostochnoi okraine Azii (Cenozoic Volcanism of Extensional Zones at the Eastern Asian Margin), Moscow: GEOS, 2006.
Filatova, N.I., Tectonic position of the MaastrichtianEocene basaltic magmatism in the northwestern Pacific belt, Geotektonika, 1987, no. 4, pp. 85–101.
Filatova, N.I., Periokeanicheskie vulkanogennye poyasa (Periooceanc Volcanogenic Belts), Moscow: Nauka, 1988.
Fujita, K., Mackey, K.G., McCaleb, R.C., et al., Seismicity of Chukotka, northeastern Russia, Geol. Soc. Am., Spec. Pap., 2002, vol. 360, pp. 259–272.
Irvine, T.N. and Baragar, W.R.A., A guide to the chemical classification on the common volcanic rocks, Can. J. Earth Sci., 1971, vol. 8, p. 523.
Kryukov, Yu.V., Geologicheskaya karta SSSR masshtaba 1: 200000. Seriya Chukotskaya. List Q-2-VIII, XIV. Ob”yasnitel’naya zapiska (Geological Map of the USSR on a scale 1: 200000. Chukotskaya Series. Sheet Q-2-XIII, XIV), Moscow: MG SSSR, 1980.
Kryukov, Yu.V. and Plyasunov, V.I., Gosudarstvennaya geologicheskaya karta SSSR masshtaba 1: 200000. List Q-2-XXV (ob″yasnitel’naya zapiska) (State Geological Map of the USSR on a scale 1: 200000. Sheet Q-2-XXV. (Explanatory Notes)), Moscow: MG SSSR, 1987.
Luhr, J.F., Allan, J.F., Carmichael, I.S.E., et al., Primitive calc-alkaline and alkaline rock types from the western Mexican Volcanic belt, J. Geophys. Res., 1989, vol. 94, no. B4, pp. 4515–4530.
Nizhnii paleogen Zapadnoi Kamchatki (stratigrafiya, paleogeografiya, geologicheskie sobytiya) (Lower Paleogene of Western Kamchatka: Stratigraphy, Paleogeography, and Geological Events), Gladenkov, Yu.B., Ed., Moscow: GEOS, 1997.
Pearce, J.A., Trace element characteristics of lavas from destructive plate boundaries, in Andesites, Thorpe, R.S., Ed., Chichester: Willey, 1982, pp. 525–548.
Polin, V.F. and Moll-Stolkap, E.J., Petrological-geochemical criteria of tectonic settings of the Chukotka chain of the Okhotsk-Chukotka volcanic belt, Tikhookean. Geol., 1999, vol. 18, no. 4, pp. 29–47.
Polin, V.F., Sakhno, V.G., Maksimov, S.O., and Sandimirov, I.V., Isotope geochemistry and deep sources of subalkaline and alkaline rocks from the Paleogene contrasting series of the Amguema-Kanchalan volcanic field, Okhotsk-Chukotka volcanic belt, Dokl. Earth Sci., 2009, vol. 429, no. 2, pp. 1288–1294.
Polyak, B.G., Spreading and rifting: specific character of helium isotopic compositions, Geotectonics, 2004, vol. 38, no. 6, pp. 418–429.
Polyak, B.G., Lavrushin, V.Yu., Cheshko, A.L., et al., Recent tectonomagmatic reactivation of the Kolyuchino-Mechigmen zone of the Chukchi Peninsula from data on the composition of gases in hydrothermal springs, Geotectonics, 2010, vol. 44, no. 6, pp. 529–540.
Smirnov, V.N. and Kondrat’ev, M.N., Tectonogeomorphological analysis of Cenozoic riftogenic structures of the Chukotka Peninsula, in Sbornik materialov I(XIX) Mezhdunarodnoi Konferentsii molodykh uchenykh, posvyashchennoi 60-letiyu Instituta morskoi geologii i geofiziki DVO RAN, “Izuchenie prirodnykh katastrof na Sakhaline i Kuril’skikh ostrovakh” (Proceedings of I(XIX) International Conference of Young Scientists Devoted to the 60-th Anniversary of the Institute of Marine Geology and Geophysics of Far East Branch of the Russian Academy of Sciences “Study of Natural Catastrophes on Sakhalin and Kuriles”), Yuzhno-Sakhalinsk: IMGiG DVO RAN, 2007, pp. 128–133.
Smirnov, V.N., Galanin, A.A., Shvedov, S.D., and Kondrat’ev, M.N., Active structure and seismotectonics of the Chukotka Peninsula, in Vseros. konf. “Chteniya pamyati akademika K.V. Simakova” (All-Russian Conference K.V. Simakov Readings), Magadan, 2007, pp. 34–36.
Smirnov, V.N. and Kondrat’ev, M.N., Cenozoic rifting at the Chukotka Peninsula. Geology of the Polar Areas of the Earth, in Proceedings of 42th Tectonic Conference, 2009, vol. 2, pp. 195–199.
Sun, S.S. and McDonough, W.F., Chemical and isotopic systematic of oceanic basalts, in Magmatism in Ocean Basin, Saunders, A.D. and Norry, M.J., Eds., Geol. Soc. Spec. Publ., 1989, vol. 42, pp. 313–345.
Tikhookeanskaya okraina Azii. Magmatizm (Asian Pacific Margin) Shcheglov, A.D. and Zimin, S.S., Eds., Moscow: Nauka, 1991.
Vashchilov, Yu.Ya., Kabak, I.B., Maksimov, A.E., et al., Geological-gravimetric interpretation tomography of the Earth’s crust and upper mantle: theory, methodology, and results, in Problemy geotomografii (Problems of Geotomography), Moscow: Nauka, 1997, pp. 266–287.
Wood, D.A., The application of a Th-Hf-Ta diagram to problems of tectonomagmatic classification and to establishing the nature of crustal contamination of basaltic lavas of the British Tertiary volcanic province, Earth Planet. Sci. Lett., 1980, vol. 50, no. 1, pp. 11–30.
Zhulanova, I.L., Zemnaya kora Severo-Vostoka Azii v dokembrii i fanerozoe (Earth’s Crust of Northeast Asia in the Precambrian and Phanerozoic), Moscow: Nauka, 1990.
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © P.I. Fedorov, V.N. Smirnov, 2014, published in Petrologiya, 2014, Vol. 22, No. 1, pp. 60–71.
Rights and permissions
About this article
Cite this article
Fedorov, P.I., Smirnov, V.N. Early Cenozoic volcanism of the Kolyuchin-Mechigmen graben, Chukotka Peninsula. Petrology 22, 54–64 (2014). https://doi.org/10.1134/S0869591114010032
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0869591114010032