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Refining Holocene geochronologies using palaeomagnetic records

Korte, Monika; Brown, Maxwell C.; Gunnarson, Sydney R.; Nilsson, Andreas LU ; Panovska, Sanja; Wardinski, Ingo and Constable, Catherine G. (2019) In Quaternary Geochronology 50. p.47-74
Abstract

The aperiodic nature of geomagnetic field variations, both in intensity and direction, can aid in dating archaeological artefacts, volcanic rocks, and sediment records that carry a palaeomagnetic signal. The success of palaeomagnetic dating relies upon our knowledge of past field variations at specific locations. Regional archaeo- and palaeomagnetic reference curves and predictions from global geomagnetic field models provide our best description of field variations through the Holocene. State-of-the-art palaeomagnetic laboratory practices and accurate independent age controls are prerequisites for deriving reliable reference curves and models from archaeological, volcanic, and sedimentary palaeomagnetic data. In this review paper we... (More)

The aperiodic nature of geomagnetic field variations, both in intensity and direction, can aid in dating archaeological artefacts, volcanic rocks, and sediment records that carry a palaeomagnetic signal. The success of palaeomagnetic dating relies upon our knowledge of past field variations at specific locations. Regional archaeo- and palaeomagnetic reference curves and predictions from global geomagnetic field models provide our best description of field variations through the Holocene. State-of-the-art palaeomagnetic laboratory practices and accurate independent age controls are prerequisites for deriving reliable reference curves and models from archaeological, volcanic, and sedimentary palaeomagnetic data. In this review paper we give an overview of these prerequisites and the available reference curves and models, discuss techniques for palaeomagnetic dating, and outline its limitations. In particular, palaeomagnetic dating on its own cannot give unique results, but rather serves to refine or confirm ages obtained by other methods. Owing to the non-uniform character of magnetic field variations in different regions, care is required when choosing a palaeomagnetic dating curve, so that the distance between the dating curve and the record to be dated is not too large. Accurate reporting and incorporation of new, independently dated archaeo- and palaeomagnetic results into databases will help to improve reference curves and global models for all regions on Earth.

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organization
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type
Contribution to journal
publication status
published
subject
keywords
Archaeomagnetic dating, Geochronology, Palaeomagnetic dating, Palaeosecular variation
in
Quaternary Geochronology
volume
50
pages
28 pages
publisher
Elsevier
external identifiers
  • scopus:85057336082
ISSN
1871-1014
DOI
10.1016/j.quageo.2018.11.004
language
English
LU publication?
yes
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de6dd7ae-c84c-4841-85eb-e414cbe94cd7
date added to LUP
2018-12-05 13:02:29
date last changed
2019-10-15 06:52:11
@article{de6dd7ae-c84c-4841-85eb-e414cbe94cd7,
  abstract     = {<p>The aperiodic nature of geomagnetic field variations, both in intensity and direction, can aid in dating archaeological artefacts, volcanic rocks, and sediment records that carry a palaeomagnetic signal. The success of palaeomagnetic dating relies upon our knowledge of past field variations at specific locations. Regional archaeo- and palaeomagnetic reference curves and predictions from global geomagnetic field models provide our best description of field variations through the Holocene. State-of-the-art palaeomagnetic laboratory practices and accurate independent age controls are prerequisites for deriving reliable reference curves and models from archaeological, volcanic, and sedimentary palaeomagnetic data. In this review paper we give an overview of these prerequisites and the available reference curves and models, discuss techniques for palaeomagnetic dating, and outline its limitations. In particular, palaeomagnetic dating on its own cannot give unique results, but rather serves to refine or confirm ages obtained by other methods. Owing to the non-uniform character of magnetic field variations in different regions, care is required when choosing a palaeomagnetic dating curve, so that the distance between the dating curve and the record to be dated is not too large. Accurate reporting and incorporation of new, independently dated archaeo- and palaeomagnetic results into databases will help to improve reference curves and global models for all regions on Earth.</p>},
  author       = {Korte, Monika and Brown, Maxwell C. and Gunnarson, Sydney R. and Nilsson, Andreas and Panovska, Sanja and Wardinski, Ingo and Constable, Catherine G.},
  issn         = {1871-1014},
  keyword      = {Archaeomagnetic dating,Geochronology,Palaeomagnetic dating,Palaeosecular variation},
  language     = {eng},
  pages        = {47--74},
  publisher    = {Elsevier},
  series       = {Quaternary Geochronology},
  title        = {Refining Holocene geochronologies using palaeomagnetic records},
  url          = {http://dx.doi.org/10.1016/j.quageo.2018.11.004},
  volume       = {50},
  year         = {2019},
}