VOLCANOUS FORMATIONS IN THE TUEKTIN FORMATION (MIDDLE DEVON) OF THE CENTRAL PART OF THE MOUNTAINAL ALTAI
Abstract
The Tuekta Formation was identified during geological surveys in the early 1960s. It dates to the upper Givetian stage of the Middle Devonian and contains corals and brachiopods, including Euryspirifer cheehiel (Kon.), Spinocyrtia martianovi (Stuck.), and others. The formation's deposits are primarily dark gray and black siltstones and mudstones with occasional layers of sandstone and organogenic limestone. In these characteristics, it is similar to the Tashanta Formation of the Yustyd Trough. However, within the formation, felsic volcanic rocks (rhyolites) are widespread. In fact, their appearance here served as the basis for the identification of a stratigraphic unit.
About the Authors
Ya.M. Gutak
Siberian State Industrial University
Russian Federation
Russian Federation
V.I. Krupnichnikov
OAO Gorno-Altai Expedition (Maloeniseysk, Altai Krai)
Russian Federation
Russian Federation
References
1. Guta k Ya.M., Gusev N.I., Sergeev V.P. Materials on the Stratigraphy of the Ongudai Graben (Gorny Altai). – In the book: New Data on Geology and Mineral Resources of the Western Part of the Altai-Sayan Region. – Novokuznetsk: Publishing House. NPK, 1995. Pp. 68 – 71.
2. Guta k Ya.M., Kruppchatnikov V.I., Fedak S.I. Postdevonian Volcanism of the Altai Mountains. – In the book: Materials of the II All-Russian Symposium “Volcanism and Geodynamics”. – Yekaterinburg: ed. IGIG UB RAS, 2003. Pp. 254 – 258.
3. Mukhina A.S. Epicon-tinental Carboniferous Deposits in the South-Eastern Altai // Bulletin of the West Siberian Geological Trust. 1936. Issue 1 – 2. Pp. 67 – 70.
4. Correlation of Igneous and Metamorphic Complexes in the Western Part of the Altai-Sayan Folded Region / S.P. Shokalsky, G.A. Babin, A.G. Vladimirov, et al. – Novosibirsk: Nauka, 2000. – 187 p.
Review
For citations:
Gutak Ya., Krupnichnikov V. VOLCANOUS FORMATIONS IN THE TUEKTIN FORMATION (MIDDLE DEVON) OF THE CENTRAL PART OF THE MOUNTAINAL ALTAI. Bulletin of the Siberian State Industrial University. 2013;(3):28-30. (In Russ.)
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