English  |  正體中文  |  简体中文  |  Items with full text/Total items : 67621/67621 (100%)
Visitors : 23035186      Online Users : 113
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Tips:
  • please add "double quotation mark" for query phrases to get precise results
  • please goto advance search for comprehansive author search
  • Adv. Search
    HomeLoginUploadHelpAboutAdminister Goto mobile version


    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/50568


    Title: Sedimentlogy of early Pliocene sandstones in the south-western Taiwan foreland: Implications for basin physiography in the early stages of collision
    Authors: Castelltort,S;Nagel,S;Mouthereau,F;Lin,ATS;Wetzel,A;Kaus,B;Willett,S;Chiang,SP;Chiu,WY
    Contributors: 地球科學系
    Keywords: HUANGHE YELLOW-RIVER;ARC-CONTINENT COLLISION;ENVIRONMENTAL-STRESSES;NORTHERN TAIWAN;TRACE FOSSILS;MOUNTAIN BELT;YANGTZE-RIVER;DELTA;MARGIN;EVOLUTION
    Date: 2011
    Issue Date: 2012-03-27 17:36:55 (UTC+8)
    Publisher: 國立中央大學
    Abstract: This work presents sedimentological observations and interpretations on three detailed sections of the Pliocene Yutengping/Ailiaochiao formations, deposited in the early stages of collision in Taiwan. Seven facies associations record paleoenvironments of deposition ranging from nearshore to lower offshore with a strong influence of tidal reworking, even in shelfal sub-tidal environments, and a pro-delta setting characterized by mass-flows. The association of shallow facies of the upper offshore to lower shoreface with pro-delta turbidite fades sourced in the orogen to the east suggests a peculiar setting in which turbidite deposition occurred below wave base but on the shelf, in water depths of probably less than 100 m. This adds to the examples of "shallow turbidites" increasingly commonly found in foreland basins and challenges the classical view of a "deep" early underfilled foreland basin. Time series analysis on tidal rhythmites allow us to identify a yearly signal in the form of periodic changes of sand-supply, energy and bioturbation that suggests a marked seasonality possibly affecting precipitation and sediment delivery as well as temperature. The Taiwan foreland basin may also present a potentially high-resolution record in shallow sediments of the early installation of monsoonal circulation patterns in east Asia. We confirm partly the paleogeography during the early stages of collision in Taiwan: the Chinese margin displayed a pronounced non-cylindrical geometry with a large basement promontory to the west in place of the modern Taiwan mountain range. Collision in Taiwan may have happened at once along the whole length of the modern mountain range, instead of progressively from north to south as classically considered. (C) 2010 Elsevier Ltd. All rights reserved.
    Relation: JOURNAL OF ASIAN EARTH SCIENCES
    Appears in Collections:[地球科學學系] 期刊論文

    Files in This Item:

    File Description SizeFormat
    index.html0KbHTML509View/Open


    All items in NCUIR are protected by copyright, with all rights reserved.

    社群 sharing

    ::: Copyright National Central University. | 國立中央大學圖書館版權所有 | 收藏本站 | 設為首頁 | 最佳瀏覽畫面: 1024*768 | 建站日期:8-24-2009 :::
    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback  - 隱私權政策聲明