Additional data of calcareous nannofossil assemblage in a sediment sample obtained from the seafloor near the Ishigaki Island (GH18 cruise)

DOI Web Site 1 Citations 2 References

Bibliographic Information

Other Title
  • GH18 航海において石垣島近傍海底で採取された堆積物の石灰質ナノ化石の追加検討

Abstract

<p>I examined calcareous nannofossil ages for the muddy part of OK60-5 collected from the seafloor near the Ishigaki Island via GH18 cruise in 2018. The sample yielded Discoaster tamalis, whose last appearance datum defines top of CN12a subzone (2.76 Ma), but did not yield Sphenolithus spp. which have last appearance (3.61 Ma) in the lower CN12a subzone. This constrains the depositional age of the sample to 3.61–2.76 Ma.</p>

Journal

  • BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN

    BULLETIN OF THE GEOLOGICAL SURVEY OF JAPAN 74 (5-6), 337-338, 2023-12-28

    National Institute of Advanced Industrial Science and Technology, Geological Survey of Japan

Citations (1)*help

See more

References(2)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top