Granite subduction: Arc subduction, tectonic erosion and sediment subduction

Shinji Yamamoto, Hiroki Senshu, Shuji Rino, Soichi Omori, Shigenori Maruyama

    Research output: Contribution to journalArticle

    105 Citations (Scopus)

    Abstract

    Continental growth has been episodic, reflecting the episodic nature of mantle dynamics as well as surface dynamics of the Earth, the net result of which is exhibited by the present mantle with two huge reservoirs of TTG rocks, one on the surface continents and the other on the D″ layer on the Core-Mantle Boundary (CMB). During the early half of the Earth history, the felsic continental crust on the surface which formed in an intra-oceanic environment has mostly been subducted into the deep mantle, except in the rare case of parallel arc collision. The growth history of continental crust shows that with its simultaneous formation, a considerable amount must have also been subducted. Such ongoing subduction processes can be seen in the western Pacific region, through tectonic erosion, arc subduction, and sediment-trapped subduction.

    Original languageEnglish
    Pages (from-to)443-453
    Number of pages11
    JournalGondwana Research
    Volume15
    Issue number3-4
    DOIs
    Publication statusPublished - Jun 1 2009

    Keywords

    • Continental growth
    • Intra-oceanic arc
    • Subduction
    • Western Pacific region

    ASJC Scopus subject areas

    • Geology

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  • Cite this

    Yamamoto, S., Senshu, H., Rino, S., Omori, S., & Maruyama, S. (2009). Granite subduction: Arc subduction, tectonic erosion and sediment subduction. Gondwana Research, 15(3-4), 443-453. https://doi.org/10.1016/j.gr.2008.12.009