Dataset used to obtain an age model of marine sediment core KH19-6 Leg 4 PC10/MC14 from the Agulhas Ridge in the South Atlantic Ocean

An age model of marine sediment core is a prerequisite to start environmental studies of the past such as paleoceanography, paleoclimatology, and paleo-hazard studies. Here we report the comprehensive geochemical dataset used to determine the age model of marine sediment cores collected from Agulhas...

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Bibliographic Details
Main Authors: Kubota, Kaoru, Tanabe, Rosaaideihn, Ikehara, Minoru, Kozaka, Yukiko, Seike, Koji, Miyairi, Yosuke, Yokoyama, Yusuke
Format: Dataset
Language:English
Published: PANGAEA 2022
Subjects:
AGE
dated
dated material
dated standard deviation
Agulhas Ridge
Benthic and planktonic foraminifera
Calendar age
standard deviation
Core
Cruise/expedition
d18O
d18O of planktic foraminifera
Depth
bottom/max
sediment/rock
top/min
Event label
Foraminifera
Foraminiferal geochemistry
foraminifera oxygen isotopes. Late Quaternary
Globigerina bulloides
δ13C
δ18O
Globorotalia inflata
Gyroidina soldanii
Hakuho-Maru
KH-19-6/4
KH-19-6/4_MC14
KH-19-6/4_PC10
MC14
MUC
MultiCorer
oxygen and carbon isotopes
Oxygen and carbon stable isotopes
Planktonic foraminifera
South Atlantic Ocean
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.949117
https://doi.org/10.1594/PANGAEA.949117
Description
Summary:An age model of marine sediment core is a prerequisite to start environmental studies of the past such as paleoceanography, paleoclimatology, and paleo-hazard studies. Here we report the comprehensive geochemical dataset used to determine the age model of marine sediment cores collected from Agulhas Ridge in the South Atlantic Ocean using piston coring and multiple-coring systems during the 30th Anniversary expeditions of R/V Hakuho Maru in 2019–2020 (KH19-6 Leg.4 PC10/MC14, water depth of 4,604 m). A whole 0.29-m-long multiple core (MC14) and the top 3.27 meter of 12.28-meter-long piston core (PC10) were dated. The dataset includes radiocarbon ages of planktonic foraminifera shells and oxygen isotopes of both planktonic (Globigerinoides bulloides, Globorotalia inflata) and benthic (Gyroidina soldanii) foraminifera shells. The results suggested that the top 7.5 kyr record was lost, the ages of 3.27 m depth below sea floor was ~140 kyr ago, and sedimentation rates were 0.9–5.5 kyr/cm.

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