Magnetostratigraphy of sediment cores from the Greenland Sea

High-resolution magnetostratigraphic analysis of three sediment cores from the base of the volcanic seamount Vesteris Banken in the Greenland Basin and one core from the Jan Mayen Fracture Zone revealed records of three pronounced geomagnetic events within the last 200 ka. Dating by stable carbon an...

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Bibliographic Details
Main Authors: Nowaczyk, Norbert R, Antonow, Martin
Format: Other/Unknown Material
Language:English
Published: PANGAEA 1997
Subjects:
ARK-V/2
ARK-VII/1
AWI_Paleo
Giant box corer
GIK21702-2 PS13/132
GIK21707-1 PS13/149
GIK21707-2 PS13/149
GIK21878-3 PS17/050
GIK21882-2 PS17/056
GIK21892-3 PS17/067
GKG
Greenland Sea
Jan Mayen Fracture Zone
KAL
Kasten corer
Norwegian Sea
Paleoenvironmental Reconstructions from Marine Sediments @ AWI
Polarstern
PS13
PS17
PS1702-2
PS1707-1
PS1707-2
PS1878-3
PS1882-2
PS1892-3
Vesteris Banken
Greenland
Jan Mayen
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.730507
https://doi.org/10.1594/PANGAEA.730507
Description
Summary:High-resolution magnetostratigraphic analysis of three sediment cores from the base of the volcanic seamount Vesteris Banken in the Greenland Basin and one core from the Jan Mayen Fracture Zone revealed records of three pronounced geomagnetic events within the last 200 ka. Dating by stable carbon and oxygen isotope analysis, AMS14C measurements and biostratigraphic data (foraminifera abundances) yielded ages of 28-27 ka for the Mono Lake excursion, 37-33 ka for the Laschamp event, and 189-179 ka for the Biwa I event. In at least one of the cores the Laschamp event exhibits a full reversal of the local geomagnetic field vector. The same is true of the Biwa I event, documented in one of the cores.

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