A-type leucogranite magmatism in the evolution of continental crust on the western margin of the Siberian craton

A. E. Vernikovskaya, V. A. Vernikovsky, E. B. Sal'nikova, A. B. Kotov, V. P. Kovach, A. V. Travin, M. T.D. Wingate

    Research output: Contribution to journalArticle

    22 Citations (Scopus)

    Abstract

    We discuss problems of the origin, settings, and age of Neoproterozoic A-type leucogranites widespread in the Yenisei Ridge. Combined analysis of geological, petrological, and geochemical (including isotope) data shows that some granitoids (Glushikha complex) were formed at the postcollisional stage (750-720 Ma), and others (Tatarka complex), in an anorogenic environment (680-630 Ma). The anorogenic complex contains diverse igneous rocks, including alkaline varieties and carbonatites. Leucogranites form separate plutons within different igneous complexes. They have high contents of potassium (up to ultrapotassic composition in the Glushikha complex), iron, and fluorine and are depleted in europium. Postcollisional granitoids show the highest concentrations of Rb, Th, and U, extremely low concentrations of Ba and Sr, whereas anorogenic granitoids are rich in Ta, Nb, Y, Sm, and HREE. The obtained data point to the augmented mantle contribution to the formation of continental crust of the Yenisei Ridge between 750 and 630 Ma. We also report new results of U-Pb zircon dating, including SHRIMP and Ar-Ar data.

    Original languageEnglish
    Pages (from-to)3-16
    Number of pages14
    JournalRussian Geology and Geophysics
    Volume48
    Issue number1
    DOIs
    Publication statusPublished - Jan 2007

    Fingerprint

    leucogranite
    cratons
    continental crust
    craton
    ridges
    magmatism
    margins
    crusts
    igneous rocks
    europium
    dating
    SHRIMP dating
    fluorine
    low concentrations
    potassium
    Earth mantle
    isotopes
    iron
    igneous rock
    pluton

    Cite this

    Vernikovskaya, A. E. ; Vernikovsky, V. A. ; Sal'nikova, E. B. ; Kotov, A. B. ; Kovach, V. P. ; Travin, A. V. ; Wingate, M. T.D. / A-type leucogranite magmatism in the evolution of continental crust on the western margin of the Siberian craton. In: Russian Geology and Geophysics. 2007 ; Vol. 48, No. 1. pp. 3-16.
    @article{6919c0a5765b4adabf53788a52cd5e11,
    title = "A-type leucogranite magmatism in the evolution of continental crust on the western margin of the Siberian craton",
    abstract = "We discuss problems of the origin, settings, and age of Neoproterozoic A-type leucogranites widespread in the Yenisei Ridge. Combined analysis of geological, petrological, and geochemical (including isotope) data shows that some granitoids (Glushikha complex) were formed at the postcollisional stage (750-720 Ma), and others (Tatarka complex), in an anorogenic environment (680-630 Ma). The anorogenic complex contains diverse igneous rocks, including alkaline varieties and carbonatites. Leucogranites form separate plutons within different igneous complexes. They have high contents of potassium (up to ultrapotassic composition in the Glushikha complex), iron, and fluorine and are depleted in europium. Postcollisional granitoids show the highest concentrations of Rb, Th, and U, extremely low concentrations of Ba and Sr, whereas anorogenic granitoids are rich in Ta, Nb, Y, Sm, and HREE. The obtained data point to the augmented mantle contribution to the formation of continental crust of the Yenisei Ridge between 750 and 630 Ma. We also report new results of U-Pb zircon dating, including SHRIMP and Ar-Ar data.",
    keywords = "A-type granites, anorogenic and collisional granites, Leucogranites, Neoproterozoic, U-Pb and Ar-Ar geochronology, Yenisei Ridge",
    author = "Vernikovskaya, {A. E.} and Vernikovsky, {V. A.} and Sal'nikova, {E. B.} and Kotov, {A. B.} and Kovach, {V. P.} and Travin, {A. V.} and Wingate, {M. T.D.}",
    year = "2007",
    month = "1",
    doi = "10.1016/j.rgg.2006.12.002",
    language = "English",
    volume = "48",
    pages = "3--16",
    journal = "Russian Geology and Geophysics",
    issn = "0016-7886",
    publisher = "Elsevier",
    number = "1",

    }

    A-type leucogranite magmatism in the evolution of continental crust on the western margin of the Siberian craton. / Vernikovskaya, A. E.; Vernikovsky, V. A.; Sal'nikova, E. B.; Kotov, A. B.; Kovach, V. P.; Travin, A. V.; Wingate, M. T.D.

    In: Russian Geology and Geophysics, Vol. 48, No. 1, 01.2007, p. 3-16.

    Research output: Contribution to journalArticle

    TY - JOUR

    T1 - A-type leucogranite magmatism in the evolution of continental crust on the western margin of the Siberian craton

    AU - Vernikovskaya, A. E.

    AU - Vernikovsky, V. A.

    AU - Sal'nikova, E. B.

    AU - Kotov, A. B.

    AU - Kovach, V. P.

    AU - Travin, A. V.

    AU - Wingate, M. T.D.

    PY - 2007/1

    Y1 - 2007/1

    N2 - We discuss problems of the origin, settings, and age of Neoproterozoic A-type leucogranites widespread in the Yenisei Ridge. Combined analysis of geological, petrological, and geochemical (including isotope) data shows that some granitoids (Glushikha complex) were formed at the postcollisional stage (750-720 Ma), and others (Tatarka complex), in an anorogenic environment (680-630 Ma). The anorogenic complex contains diverse igneous rocks, including alkaline varieties and carbonatites. Leucogranites form separate plutons within different igneous complexes. They have high contents of potassium (up to ultrapotassic composition in the Glushikha complex), iron, and fluorine and are depleted in europium. Postcollisional granitoids show the highest concentrations of Rb, Th, and U, extremely low concentrations of Ba and Sr, whereas anorogenic granitoids are rich in Ta, Nb, Y, Sm, and HREE. The obtained data point to the augmented mantle contribution to the formation of continental crust of the Yenisei Ridge between 750 and 630 Ma. We also report new results of U-Pb zircon dating, including SHRIMP and Ar-Ar data.

    AB - We discuss problems of the origin, settings, and age of Neoproterozoic A-type leucogranites widespread in the Yenisei Ridge. Combined analysis of geological, petrological, and geochemical (including isotope) data shows that some granitoids (Glushikha complex) were formed at the postcollisional stage (750-720 Ma), and others (Tatarka complex), in an anorogenic environment (680-630 Ma). The anorogenic complex contains diverse igneous rocks, including alkaline varieties and carbonatites. Leucogranites form separate plutons within different igneous complexes. They have high contents of potassium (up to ultrapotassic composition in the Glushikha complex), iron, and fluorine and are depleted in europium. Postcollisional granitoids show the highest concentrations of Rb, Th, and U, extremely low concentrations of Ba and Sr, whereas anorogenic granitoids are rich in Ta, Nb, Y, Sm, and HREE. The obtained data point to the augmented mantle contribution to the formation of continental crust of the Yenisei Ridge between 750 and 630 Ma. We also report new results of U-Pb zircon dating, including SHRIMP and Ar-Ar data.

    KW - A-type granites

    KW - anorogenic and collisional granites

    KW - Leucogranites

    KW - Neoproterozoic

    KW - U-Pb and Ar-Ar geochronology

    KW - Yenisei Ridge

    UR - http://www.scopus.com/inward/record.url?scp=34250752879&partnerID=8YFLogxK

    U2 - 10.1016/j.rgg.2006.12.002

    DO - 10.1016/j.rgg.2006.12.002

    M3 - Article

    VL - 48

    SP - 3

    EP - 16

    JO - Russian Geology and Geophysics

    JF - Russian Geology and Geophysics

    SN - 0016-7886

    IS - 1

    ER -