• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to project page

2009 Fiscal Year Final Research Report

Evolutionary process of planktonic marine diatoms during the late Cenozoic Era.

Research Project

  • PDF
Project/Area Number 19540498
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Stratigraphy/Paleontology
Research InstitutionNational Institute of Advanced Industrial Science and Technology

Principal Investigator

YANAGISAWA Yukio  National Institute of Advanced Industrial Science and Technology, 地質情報研究部門, 主任研究員 (10358210)

Project Period (FY) 2007 – 2009
Keywords地質学 / 古生物学 / 古海洋学 / 進化 / 珪藻 / 微化石 / 植物プランクトン / 気候変動
Research Abstract

Dynamic evolutionary processes of the three marine planktonic diatom groups have been revealed by detailed diatom analysis of deep sea cores recovered in the middle- to high-latitude North Pacific, the low-latitude tropical Pacific and the Southern Oceans. Crucidenticula is a warm water extinct diatom genus composed of four evolutionay lineages, each of which expanded its geographic distribution into the high-latitudes during warm period of early to middle Miocene. The extinct diatom genus Denticulopsis consists of seven lineages, most of which are cold water diatoms showing a typical bipolar geographic pattern except for one cosmopolitan lineage. Neodenticula is an extant cold water diatom group born in the late Miocene. It shows a bipolar distribution during the late Miocene, but the Southern Ocean population became extinct in the early Pliocene.

  • Research Products

    (9 results)

All 2010 2009 2008 2007

All Journal Article (5 results) (of which Peer Reviewed: 4 results) Presentation (4 results)

  • [Journal Article] 新潟県津川地域音無川ルートに分布する中部~上部中新統野村層の珪藻化石層序2010

    • Author(s)
      柳沢幸夫・平中宏典・黒川勝己
    • Journal Title

      地質調査研究報告 61巻

      Pages: 147-160

    • Peer Reviewed
  • [Journal Article] 釧路海底谷壁から採取された泥岩試料の珪藻化石2010

    • Author(s)
      柳沢幸夫
    • Journal Title

      地質調査研究報告 61巻

      Pages: 105-123

    • Peer Reviewed
  • [Journal Article] 岩手県北上市西部の上部中新統菱内層の珪藻化石年代2009

    • Author(s)
      柳沢幸夫・大石雅之
    • Journal Title

      岩手県立博物館研究報告 26巻

      Pages: 01-10

  • [Journal Article] 佐渡島中山層(中部中新統~下部鮮新統)の珪藻化石層序2009

    • Author(s)
      柳沢幸夫・平中宏典・黒川勝己・渡辺真人
    • Journal Title

      地球科学 63巻

      Pages: 95-106

    • Peer Reviewed
  • [Journal Article] Chronological data for the middle Miocene to Pliocene sequence around the southwestern Sendai Plain, with special reference to the uplift history of the Ou Backbone Range2008

    • Author(s)
      Fujiwara, O., Yanagisawa, Y., Irizuki, T., Shimamoto, M., Hayashi, H., Danhata, T., Fuse, K., Iwano, H
    • Journal Title

      Bulletin of the Geological Survey of Japan 59巻

      Pages: 423-438

    • Peer Reviewed
  • [Presentation] 海成の地層中に記録された新第三紀の淡水~汽水生珪藻の進化:新潟県胎内・津川地域の例(概報)2010

    • Author(s)
      柳沢幸夫
    • Organizer
      日本珪藻学会第31回大会
    • Place of Presentation
      東京
    • Year and Date
      2010-05-09
  • [Presentation] 新潟県胎内地域に分布する新第三系の珪藻化石層序2008

    • Author(s)
      柳沢幸夫・本山功
    • Organizer
      日本古生物学会2008年年会
    • Place of Presentation
      仙台
    • Year and Date
      2008-07-06
  • [Presentation] 新生代における外洋性浮遊性珪藻の両極性分布2008

    • Author(s)
      柳沢幸夫
    • Organizer
      日本古生物学会157回例会シンポジウム
    • Place of Presentation
      宇都宮市
    • Year and Date
      2008-02-01
  • [Presentation] 海生化石珪藻Denticulopsis属の先祖と推定される小型のFragilaiopsis属の1新種について2007

    • Author(s)
      柳沢幸夫
    • Organizer
      日本珪藻学会第28回大会
    • Place of Presentation
      大阪府狭山市
    • Year and Date
      2007-05-19

URL: 

Published: 2011-06-18   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi