The role of mafic magmatism in age specification of Devonian continental trough deposits: evidence from the Minusa Basin, western Siberia, Russia


Authors: Fedoseev GS

Published in: Bulletin of Geosciences, volume 83, issue 4; pages: 473 - 480; Received 19 September 2006; Accepted in revised form 26 August 2008;

Keywords: Early Devonian, stratigraphy, geochronology, basalt, dolerite and porphyry sills, Minusa Basin, Russia,

full text (PDF, 3.33 MB)

Export to RIS



In the Devonian the Minusa Intermountain Trough (Basin) of Siberia represented a rift structure that was filled with rocks which now occur as strata-like bodies interpreted to be of volcanic origin. The character of the mafic rocks including their upper contacts and geochronological dating, using Rb/Sr, 40Ar/39Ar, and U/Pb methods, suggests their sill or subvolcanic nature. Porphyry and dolerite sills and basalt formed later (385-405 Mya) than felsic and andesitic volcanic rocks (402-448 Mya). Because these bodies were earlier considered as volcanic flows, it is important to revise the geological succession of the Devonian formations dominated by mafic igneous rocks


Ananiev, A.R. 1959. Major locations of the Devonian floras at the Altai-Sayan mountain area. 115 pp. Tomsk.

Ananiev, A.R. 1960. Thelomophyta. The highest plants, 578–599. In Khalphin, L.L. (ed.) Paleozoic biostratigraphy of the Altai-Sayan mountain area. Middle Paleozoic II(20). Novosibirsk.

Ananiev, A.R. 1968. New dates for stratigraphy of continental Devonian sediments of the Western Siberian, 96–103. In Ivaniya, V.A. (ed.) Trudi of Tomsk State University 202 (geological series). Tomsk.

Babin, G.A., Vladimirov, A.G., Kruk, N.N., Cergeev, S.A., Sennikov, N.V., Gibsher, A.S. & Sovetov, Y.K. 2004. Age of Minusa depressions location (Southern Siberian). Dokladi akademii nauk 395(3), 367–370.

Cherepanov, A.N., Sharapov, V.N. & Popov, V.N. 1996. Dynamics of the cooling of basic melt during as magma chambers fill. Geologiya i geofyzica 37(7), 44–56.

Fedoseev, G.S. 2004a. Identification of mafic paleoflows and sills on the continents, 134–137. In Sklayrov, E.V. (ed.) Geodynamic evolution of lithosphere of Central Asian mobile belt (from Ocean to the Continent) 2(2). Irkutsk.

Fedoseev, G.S. 2004b. Intraplate mafic sill genesis – an alternative to flood basalt volcanicity, 199–200 (text), 228 (ill.). In Cherkasov, S. (ed.) Science and our future: ideas to change the world. Moscow.

Fedoseev, G.S. 2008. Continental sills formation as an indicator of mantle plume manifestation. Abstracts of 33IGC, CD: session MPI-05 Large Igneous Provinces: Initiation, evolution and origin. Oslo, Norway.

Fedoseev, G.S., Ratanov, L.S. & Travin, A.V. 2003. 40Ar/39Ar dating of a sill complexes and volcanites at the Minusa intermountain depression (West Siberia), 518–521. In Kozakov, I.K.&Kotov, A.B. (eds) Isotopic geochronology in decision of a geodynamic and ore genesis problems. Saint-Petersburg.

Gans, P.B., Mahood, G.A. & Schermer, E. 1989. Synextensional magmatism in the Basin and Range Province: a case study from the Eastern Great Basin. Geological Society of America Special Paper 233, 3–58.

Kaufmann, B. 2006. Calibrating the Devonian Time Scale: a synthesis of U-Pb ID-TIMS ages and conodont stratigraphy. Earth Science Reviews 76, 175–190.View article

Kovalev, V.P. 1980. Hercynian magmatism of Predsayania (radiogeochemistry, petrology, reconstructions). 424 pp. Novosibirsk.

Krasnov, V.I. & Fedoseev, G.S. 2000. Byskar Series of the Minusa intermountain depression: modern interpretation (to the improvement of legend of Gosgeolmap-200 and -1000), 93–99. In Krasnov, V.I. (ed.) Stratigraphy and Paleontology of Siberia. Novosibirsk.

Krasnov, V.I. & Ratanov, L.S. 1972. On the structure of Devonian volcanogenic-sedimentary complex in the Minusa trough, 88–92. In Sukhov, S.V. & Krasnov, V.I. (eds) Materiali on Stratigraphy and Paleontology of Siberia 146. Novosibirsk.

Krasnov, V.I., Ratanov, L.S., Astaschkin, V.F. & Mironova, M.F. 1975. Some problems to theories and practice of regional stratigraphy on example of the study Devonian formations in Altai-Sayan area, 25–44. In Krasnov, V.I. (ed.) Materials for regional geology of Siberian 216. Novosibirsk.

Kruk, N.N., Babin, G.A., Vladimirov, A.G., Rudnev, S.N., Gibsher, A.S., Sovetov, Y.K., Sergeev, S.A., Kotov, A.B., Salnikova, E.B., Levchenko, O.A., Makhlaey, E.M. & Derban, A.G. 2002. Devonian-like magmatism of East Sayan (U-Pb isotopic researches), 189–193. In Chernyshov, A.I. (ed.) Petrology of magmatic and metamorphic complexes 3(1). Tomsk.

Lahee, F.H. 1923. Field Geology. 651 pp. McGraw-Hill Book Company, New York & London.

Levchenko, S.V. 1975. Before platform metallogeny of the Kuznetsk-Minussa ore region. 192 pp. A.A. Arsenev, Moscow.

Luchitskiy, I.V. 1960. Volcanism and tectonics of the Devonian depressions of the Minusa Intermountain Trough. 276 pp. Y.A. Kuznetsov, Moscow.

Malkovets, V.G. 2001. Composition and structure of Mesozoic Upper Mantle under North Minusa trough. 24 pp. Abstract of Ph.D., Institute of Geology SB RAN, Novosibirsk, Russia.

Rublev, A.G., Shergina, Y.P., Berzon, E.I., Barsegyan, V.E., Levchenkov, O.A. & Yakovleva, S.S. 1999. Isotopic age of the paleozoic volcanites at the Krasnoyarsk elevation and stratigraphy problems of the Byskar Series. Otechestvennaia geologia 3, 47–54.

Sharapov, V.N. & Golubev, V.S. 1976. The dynamics of interaction between magma and rocks. 237 pp. Y.A. Kuznetsov, Novosibirsk.

Sennikov, N.V., Gratsianova, R.T., Sobolev, E.S. & Klets, T.V. 1995. On genesis and age of the Aramchak formation of the Lower Devonian in the North-Minusa depression. Geology and Geophysics 36(3), 15–24.

Zakharova, T.V. & Ananiev, A.R. 1990. On stratigraphic position of Devonian Byskar Series at Minusa trough. Bulletin of Moscow Society of Nature investigators. Department of Geology 65(2), 44–50.

Zubkov, V.S., Pakholchenko, Y.A., Sandimirova, G.P., Mamitko, V.R. & Plyusnin, G.S. 1986. Rubidium- strontium age and genesis of alkaline olivine basalt of the Minusa trough systems. Dokladi akademii nauk of USSR 290(4), 960–963.

Zanina, I.E. & Likharev, B.K. Eds 1975. The Stratigraphy dictionary of USSR. Cambrian, Ordovician, Silurian, Devonian. 622 pp. Nedra, Leningrad. [in Russian]