Radiocarbon ages and last occurrences of Globorotalia menardii flexuosa and Globoquadrina hexagona in Atlantic sediment cores ...

Ranges of Globorotalia menardii menardii, Gr. menardii flexuosa and Globoquadrina hexagona at time of climatostratigraphic intervals representing oxygen-isotope stages 5-1 are determined by study of dozens of Late Quaternary sediment cores involving constructing paleotemperature curves from planktic...

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Bibliographic Details
Main Authors: Barash, Max S, Kuptsov, Vladimir M, Os'kina, Natalia S
Format: Dataset
Language:English
Published: PANGAEA 1987
Subjects:
Event label
Depth, top/min
Depth, bottom/max
Age, dated
Age, dated standard deviation
Last occurrence
Gravity corer
Grab
Multiple investigations
Drilling/drill rig
Age, 14C benzol synthesis
Calculated
Counting, foraminifera
AKU3
AKU6
ML7
ML10
ML12
Akademik Kurchatov
Mikhail Lomonosov
Archive of Ocean Data ARCOD
Online Access:https://dx.doi.org/10.1594/pangaea.756672
https://doi.pangaea.de/10.1594/PANGAEA.756672
Description
Summary:Ranges of Globorotalia menardii menardii, Gr. menardii flexuosa and Globoquadrina hexagona at time of climatostratigraphic intervals representing oxygen-isotope stages 5-1 are determined by study of dozens of Late Quaternary sediment cores involving constructing paleotemperature curves from planktic foraminifera and oxygen isotope curves for their shells, as well as radiocarbon dating. Gr. menardii flexuosa and Gq. hexagona disappeared about 27-25 ky ago from the subtropical and tropical Atlantic and about 18 ky ago from the equatorial area. ... : Parentheses indicate least reliable determinations in cores with signs of re-deposition or with non-indicative paleoclimatic curves. ...

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