Abstract
The isotopic and geochemical studies of the Upper Cretaceous-Cenozoic flysch sequences of the Kamchatka Peninsula and southern Koryak region revealed that they were formed at least from two sources: one depleted (T) with low 87Sr/86Sr and high positive SrNd(T) values and one enriched (T) with high 87Sr/86Sr and negative SrNd(T) values. The enriched source was likely represented by complexes of ancient upper continental crust. The subduction-related rocks and, to a lesser extent, basalts of mid-oceanic ridges or back-arc basins could serve as a juvenile source for most of the flysch sediments. The Upper Cretaceous flysch sediments differ from their Cenozoic analogues in composition. The Upper Cretaceous rocks are dominated by enriched upper crustal material. The Cenozoic sequences of the Ukelayat Trough and Paleocene-Eocene sequences of the Kumroch Range contain a substantial amount of island-arc volcanoclastic material; the Eocene flysch of Karaginskii Island is compositionally similar to the Upper Cretaceous flysch sequences.
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References
Accretionary Tectonics of East Kamchatka (Nauka, Moscow, 1993) p. 272. [in Russian].
T. B. Bayanova, Age of the Reference Geological Complexes of the Kola Peninsula and Duraiton of the Magmatic Processes (Nauka, St. Petersburg, 2004) [in Russian].
N. A. Bogdanov and V. E. Khain, Explanatory Notes to the Tectonic Map of the Sea of Okhotsk Region (Inst. Litosf. Okr. Vnutr. Morei RAN, Moscow, 2000) [in Russian].
Geology of the Western Bering Sea (Nauka, Moscow, 1990), p. 157 [in Russian].
B. V. Ermakov, “Ukelayat-Shumagin Flysch Trough of Koryakia and Southern Alaska,” Geol. Geofiz., No. 6, 42–46 (1975).
D. V. Kovalenko, Paleomagnetism of the Geological Complexes of Kamchatka and Southen Koryakia (Nauchn. Mir, Moscow, 2003) [in Russian].
D. V. Kovalenko and T. B. Bayanova, “Sources and Evolution of the Cenozoic Suprasubduction Magmatism of the Olyutorsky Tectonic Block, Southern Koryak Highland,” Petrologiya 15(6), 645–670 (2007) [Petrology 15, 599-622 (2007)].
D. V. Kovalenko, V. A. Koloskov, N. V. Tsukanov, and P. I. Fedorov, Geodynamic Settings and Magma Sources of the Late Cretaceous-Early Paleocene Magmatic Complexes of Northern Kamchatka, Geokhimiya, No. 4, 348–377 (2009) [Geochem. Int., 47, 329-357(2009)].
N. P. Mitrofanov and S. D. Sheludchenko, “On Age of Terrigenous Deposits in the Southwestern Central Kamchatka Fold Zone,” Geol. Geofiz., No. 4, 128–131 (1981).
O. A. Morozov and Yu. V. Rostovtseva, “Mineralogy and Geochemistry of Sandstones from Eastern Kamchatka and the Komandorsky Islands,” Litol. Polezn. Iskop., No. 1, 44–55 (1996) [Lithol. Miner. Resour. 31, 38-48 (1996)].
A. V. Solov’ev, Extended Abstracts of Doctoral Dissertation in Geology and Mineralogy (GIN, Moscow, 2005).
S. R. Taylor and S. M. McLennan, The Continental Crust: Its Composition and Evolution (Blackwell, Oxford, 1985; Mir, Moscow, 1988).
P. I. Fedorov, D. V. Kovalenko, T. B. Bayanova, and P. A. Serov, “Early Cenozoic Magmatism in the Continental Margin of Kamchatka,” Petrologiya 16(3), 277–295 (2008) [Petrology 16, 261-278 (2008)].
G. B. Flerov, P. I. Fedorov, and T. G. Churikova, “Geochemistry of Late Cretaceous—Paleogene Potassic Rocks of the Early Evolutionary Stage in the Kamchatka Island Arc,” Petrologiya 9(2), 189–208 (2001) [Petrology 9, 161-78 (2001)].
G. Faure, Principles of Isotope Geology (Wiley, New York, 1986; Mir, Moscow, 1989).
N. P. Chamov, “Chemical Composition of Cretaceous-Paleogene Volcanogenic-Sedimentary Rocks of the Govena-Karagin Block, Southern Koryak Upland,” Litol. Polezn. Iskop., No. 4, 393–405 (1996) [Lithol. Miner. Resour. 31, 348-359 (1996)].
V. D. Chekhovich, Tectonics and Geodynamics of the Fold Framing of Small Oceanic Basins (Nauka, Moscow, 1993) [in Russian].
M. N. Shapiro and M. Yu. Khotin, “Upper Cretaceous Quartz-Feldspathic Sandstones of Eastern Kamchatka,” Litol. Polezn. Iskop., No. 5, 67–74 (1973).
M. N. Shapiro, P. V. Markevich, V. I. Grechin, and E. A. Konstantinovskaya, “Upper Cretaceous and Lower Paleocene Sandstones of Kamchatka: Composition and Problems of Sources,” Litol. Polezn. Iskop., No. 6, 94–106 (1992).
M. N. Shapiro, “Late Cretaceous Achaivayam-Vala- ginskii Volcanic Arc, Kamchatka, and Kinematics of the North Pacific Plates,” Geotektonika, No. 1, 58–70 (1995).
M. N. Shapiro, A. V. Lander, and N. P. Chamov, “Origin of Sialic Clastic Material in the Eocene-Oligocene Sequences of Northeastern Kamchatka and Geodynamic of the Commander Basin,” Tikhookean. Geol. 19(4), 66–82 (2000).
E. A. Shcherbinina and D. V. Kovalenko, “Age of Flysch-Olistostrome Complex in the Eastern Olyutor Range (Southern Koryak Highland),” Stratigr. Geol. Korrelyatsiya 4(2), 110–112 (1996) [Stratigr. Geol. Correlation 4, 209-212 (1996)].
G. V. Ledneva, J. I. Garver, M. N. Shapiro, et al., “Provenance and Tectonic Setting of Accretionary Wedge Sediments on Northeastern Karaginski Island (Kamchatka, Russian Far East),” Russ. J. Earth Sci. 6(2), 1–28 (2004).
T. Plank and C. H. Langmuir, “The Chemical Composition of Subducting Sediment and Its Consequences for the Crust and Mantle,” Chem. Geol. 145, 325–394 (1998).
S. S. Sun and W. F. McDonough, “Chemical and Isotopic Systematics of Oceanic Basalts,” in Magmatism in Ocean Basin, Ed. by A. D. Saunders and M. J. Norry, Geol. Soc. Spec. Publ. London 42, 313–345 (1989).
Treatise on Geochemistry (Elsevier, Amsterdam, 2003), Vol. 3.
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Original Russian Text © D.V. Kovalenko, O.O. Stavrova, N.V. Tsukanov, 2010, published in Tikhookeanskaya Geologiya, 2010, Vol. 4, No. 1, pp. 3–14.
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Kovalenko, D.V., Stavrova, O.O. & Tsukanov, N.V. Isotopic and geochemical characteristics of Upper Cretaceous and Cenozoic flysch sediments of the Kamchatka Peninsula and southern Koryak region. Russ. J. of Pac. Geol. 4, 1–12 (2010). https://doi.org/10.1134/S181971401001001X
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DOI: https://doi.org/10.1134/S181971401001001X