Geodynamic setting, structure, and composition of continuous trachybasalt-trachyandesite-rhyolite series in the north of Altai-Sayan area: the role of crust-mantle interaction in continental magma formation

Описание

Тип публикации: статья из журнала

Год издания: 2018

Идентификатор DOI: 10.1016/j.rgg.2018.12.009

Ключевые слова: trachybasalt, trachyandesite, rhyolite, Ordovician, Silurian, Devonian, Minusa basin, rare lithophile elements, isotopic compositions of Sr and Nd, magmatic sources, fractionation, crustal contamination

Аннотация: The geologic positions and geochemical and isotope parameters of the Ordovician-early Silurian and Early-Middle Devonian continuous volcanic series of the Minusa basin and its mountainous framing are compared. Both series are composed mostly of moderately alkaline rocks with variations in SiO2 contents from 45 to 77 wt.%. The OrdovПоказать полностьюician-early Silurian series differs from the Early-Middle Devonian one in lower contents of TiO2 (

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Издание

Журнал: RUSSIAN GEOLOGY AND GEOPHYSICS

Выпуск журнала: Vol. 59, Is. 12

Номера страниц: 1640-1659

ISSN журнала: 10687971

Место издания: AMSTERDAM

Издатель: ELSEVIER SCIENCE BV

Авторы

  • Vorontsov A.A. (Russian Acad Sci, AP Vinogradov Inst Geochem, Siberian Branch, Ul Favorskogo 1a, Irkutsk 664033, RussiaIrkutsk State Univ, Ul Karla Marksa 1, Irkutsk 664003, Russia)
  • Perfilova O.Yu. (Siberian Fed Univ, Pr Imeni Gazety Krasnoyarskii Rabochii 95, Krasnoyarsk 660025, Russia)
  • Kruk N.N. (Russian Acad Sci, Siberian Branch, VS Sobolev Inst Geol & Mineral, Pr Akad Koptyuga 3, Novosibirsk 630090, Russia; Novosibirsk State Univ, Ul Pirogova 2, Novosibirsk 630090, Russia)

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