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    National Tsing Hua University Institutional Repository > 歷任校長 > 沈君山 (1994-1997) > 期刊論文 >  Late quaternary explosive volcanic activities of the Mindanao-Molucca sea collision zone in the western pacific as inferred from marine tephrostratigraphy in the Celebes sea


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/80885


    Title: Late quaternary explosive volcanic activities of the Mindanao-Molucca sea collision zone in the western pacific as inferred from marine tephrostratigraphy in the Celebes sea
    Authors: Ku, Y.P.;C.H. Chen;S.R. Song;Y. Iizuka;J.J. Shen
    教師: 沈君山
    Date: 2009
    Publisher: 中華民國地球科學學會
    Relation: TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES, 中華民國地球科學學會, Volume 20, Issue 4, AUG 2009, Pages 587-605
    Keywords: Tephra
    Volcanic activity
    Celebes Sea
    Abstract: The giant piston core MD01-2387 taken from the eastern Celebes Sea basin provides a marine tephrostratigraphy with high resolution for inferring explosive volcanism in the area surrounding the basin for the past 350 kyr. The sequence contains 65 tephra layers composed of volcanic minerals and glassy particles. The compositional characteristics of crystal enriched tephra layers and the (87)Sr/(86)Sr of the glass particles (0.7039 to 0.7042) suggest that these ashes were released by the volcanoes in the Mindanao-Molucca Sea collision zone, including the south Philippine Arc system, the Sangehi Arc and the Halmahera Arc. The upward decrease of tephra. layers in this core indicates a declining trend of explosive volcanic activity of this collision zone, particularly, after ca. 180 ka in the late Middle Pleistocene. This record also suggests that the shoshonitic volcanism in Central Mindanao became extinct at ca. 151 ka, which is much younger than what reported previously by onland investigations.
    Relation Link: http://www.cgu.org.tw/CGU2012/index.html
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/80885
    Appears in Collections:[沈君山 (1994-1997)] 期刊論文
    [物理系] 期刊論文

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