Chronostratigraphy and spatial distribution of magnetic sediments in the Chukchi and Beaufort seas since the last deglaciation

Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margins was performed to better constrain the regional chronostratigraphy and to gain insights into sediment magnetic properties at the North American Arctic margin during the Holocene and the preceding deglaciati...

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Bibliographic Details
Published in:Boreas 2018-04, Vol.47 (2), p.544-564
Main Authors: Deschamps, Charles‐Edouard, St‐Onge, Guillaume, Montero‐Serrano, Jean‐Carlos, Polyak, Leonid
Format: Article
Language:English
Subjects:
Chronostratigraphy
Coercivity
Cores
Dating
Dating techniques
Declination
Deglaciation
Ferrimagnetism
Grain
Holocene
Inclination
Lead isotopes
Magnetic properties
Magnetite
Meltwater
Minerals
Palaeomagnetism
Paleomagnetism
Polar environments
Quaternary
Radiocarbon dating
Radiometric dating
Records
Remanent magnetization
Secular variations
Sediment
Sedimentation
Sedimentation & deposition
Sedimentation rates
Sediments
Spatial distribution
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Summary:Palaeomagnetic investigation of three sediment cores from the Chukchi and Beaufort Sea margins was performed to better constrain the regional chronostratigraphy and to gain insights into sediment magnetic properties at the North American Arctic margin during the Holocene and the preceding deglaciation. Palaeomagnetic analyses reveal that the sediments under study are characterized by low‐coercivity ferrimagnetic minerals (magnetite), mostly in the pseudo‐single domain grain‐size range, and by a strong, stable, well‐defined remanent magnetization (MAD
ISSN:0300-9483
1502-3885
DOI:10.1111/bor.12296