Age model and oxygen isotope stratigraphy of site ODP1202 in the southern Okinawa Trough, northwestern Pacific

Kuo Yen Wei, Horng Sheng Mii, Chi Yue Huang

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The two sedimentary sequences drilled at Holes 1202B and 1202D were correlated based upon direct lithologic observation, shipboard logging of magnetic susceptibility, and bulk density to form a stacked record of 410 m in length. Calcareous nannofossil and planktic foraminiferal occurrences confine the bottom of the record to be younger than 85 ka, whereas the sediments in the interval ∼225 - 280 mbsf in Hole 1202D are apparently of turbidite origin. Eleven AMS carbon-14 datings of planktic foraminifera and scaphopod samples from Hole 1202B suggest that the upper 110 m has a continuous record dating back over the past 28 thousand years. An oxygen isotope stratigraphy based upon planktic fora minifera Neogloboquadrina dutertrei was established from the stacked sequence. The upper part of the δ 18 O profile can be well correlated to that from the central Okinawa Trough site DGKS9603 (Li et al. 2001) in both trend and absolute values whereas the lower part is considered to belong to marine oxygen isotope stage 4. The sedimentation rates have been always high at this site, ranging from 1.5 to 16 meters per thousand years.

Original languageEnglish
Pages (from-to)1-17
Number of pages17
JournalTerrestrial, Atmospheric and Oceanic Sciences
Volume16
Issue number1
Publication statusPublished - 2005 Mar

Fingerprint

oxygen isotope
trough
stratigraphy
nanofossil
accelerator mass spectrometry
radiocarbon dating
turbidite
magnetic susceptibility
sedimentary sequence
sedimentation rate
foraminifera
bulk density
sediment
trend
young
dating

Keywords

  • Age model
  • Okinawa Trough
  • Oxygen isotope stratigraphy
  • Quaternary

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Atmospheric Science
  • Oceanography

Cite this

Age model and oxygen isotope stratigraphy of site ODP1202 in the southern Okinawa Trough, northwestern Pacific. / Wei, Kuo Yen; Mii, Horng Sheng; Huang, Chi Yue.

In: Terrestrial, Atmospheric and Oceanic Sciences, Vol. 16, No. 1, 03.2005, p. 1-17.

Research output: Contribution to journalArticle

@article{854c7ae2b6a44d1aadee9ea0c6ed2d18,
title = "Age model and oxygen isotope stratigraphy of site ODP1202 in the southern Okinawa Trough, northwestern Pacific",
abstract = "The two sedimentary sequences drilled at Holes 1202B and 1202D were correlated based upon direct lithologic observation, shipboard logging of magnetic susceptibility, and bulk density to form a stacked record of 410 m in length. Calcareous nannofossil and planktic foraminiferal occurrences confine the bottom of the record to be younger than 85 ka, whereas the sediments in the interval ∼225 - 280 mbsf in Hole 1202D are apparently of turbidite origin. Eleven AMS carbon-14 datings of planktic foraminifera and scaphopod samples from Hole 1202B suggest that the upper 110 m has a continuous record dating back over the past 28 thousand years. An oxygen isotope stratigraphy based upon planktic fora minifera Neogloboquadrina dutertrei was established from the stacked sequence. The upper part of the δ 18 O profile can be well correlated to that from the central Okinawa Trough site DGKS9603 (Li et al. 2001) in both trend and absolute values whereas the lower part is considered to belong to marine oxygen isotope stage 4. The sedimentation rates have been always high at this site, ranging from 1.5 to 16 meters per thousand years.",
keywords = "Age model, Okinawa Trough, Oxygen isotope stratigraphy, Quaternary",
author = "Wei, {Kuo Yen} and Mii, {Horng Sheng} and Huang, {Chi Yue}",
year = "2005",
month = "3",
language = "English",
volume = "16",
pages = "1--17",
journal = "Terrestrial, Atmospheric and Oceanic Sciences",
issn = "1017-0839",
publisher = "中華民國地球科學學會",
number = "1",

}

TY - JOUR

T1 - Age model and oxygen isotope stratigraphy of site ODP1202 in the southern Okinawa Trough, northwestern Pacific

AU - Wei, Kuo Yen

AU - Mii, Horng Sheng

AU - Huang, Chi Yue

PY - 2005/3

Y1 - 2005/3

N2 - The two sedimentary sequences drilled at Holes 1202B and 1202D were correlated based upon direct lithologic observation, shipboard logging of magnetic susceptibility, and bulk density to form a stacked record of 410 m in length. Calcareous nannofossil and planktic foraminiferal occurrences confine the bottom of the record to be younger than 85 ka, whereas the sediments in the interval ∼225 - 280 mbsf in Hole 1202D are apparently of turbidite origin. Eleven AMS carbon-14 datings of planktic foraminifera and scaphopod samples from Hole 1202B suggest that the upper 110 m has a continuous record dating back over the past 28 thousand years. An oxygen isotope stratigraphy based upon planktic fora minifera Neogloboquadrina dutertrei was established from the stacked sequence. The upper part of the δ 18 O profile can be well correlated to that from the central Okinawa Trough site DGKS9603 (Li et al. 2001) in both trend and absolute values whereas the lower part is considered to belong to marine oxygen isotope stage 4. The sedimentation rates have been always high at this site, ranging from 1.5 to 16 meters per thousand years.

AB - The two sedimentary sequences drilled at Holes 1202B and 1202D were correlated based upon direct lithologic observation, shipboard logging of magnetic susceptibility, and bulk density to form a stacked record of 410 m in length. Calcareous nannofossil and planktic foraminiferal occurrences confine the bottom of the record to be younger than 85 ka, whereas the sediments in the interval ∼225 - 280 mbsf in Hole 1202D are apparently of turbidite origin. Eleven AMS carbon-14 datings of planktic foraminifera and scaphopod samples from Hole 1202B suggest that the upper 110 m has a continuous record dating back over the past 28 thousand years. An oxygen isotope stratigraphy based upon planktic fora minifera Neogloboquadrina dutertrei was established from the stacked sequence. The upper part of the δ 18 O profile can be well correlated to that from the central Okinawa Trough site DGKS9603 (Li et al. 2001) in both trend and absolute values whereas the lower part is considered to belong to marine oxygen isotope stage 4. The sedimentation rates have been always high at this site, ranging from 1.5 to 16 meters per thousand years.

KW - Age model

KW - Okinawa Trough

KW - Oxygen isotope stratigraphy

KW - Quaternary

UR - http://www.scopus.com/inward/record.url?scp=17344369488&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=17344369488&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:17344369488

VL - 16

SP - 1

EP - 17

JO - Terrestrial, Atmospheric and Oceanic Sciences

JF - Terrestrial, Atmospheric and Oceanic Sciences

SN - 1017-0839

IS - 1

ER -