Archeomagnetic secular variation from Korea: Implication for the occurrence of global archeomagnetic jerks

Yongjae Yu, Seong-Jae Doh, Wonnyon Kim, Yong Hee Park, Hong Jong Lee, Youngjin Yim, Sang Gi Cho, Youn Suk Oh, Dong Sung Lee, Ho Hyeong Lee, Min Gyu Gong, Dae Hwan Hyun, Jae Kyoung Cho, Yeun Sik Sin, Moon Sun Do

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

An archeomagnetic paleosecular variation (PSV) was first defined in Korea using baked materials collected from 26 kilns or hearths with ages ranging from ~ 1100 BC to AD 1790. Variations of geomagnetic declination and inclination from the Korean peninsula are distinctively different from the prediction of a global model (CALS3k.3 or CALS7K.2) for the past 3500. yr. In particular, a distinctive offset in magnitude and phase is noticeable between the observations and predictions at ~ 745 BC, ~ AD 300, and ~ AD 1400-1700. A bi-plot of magnetic declination versus inclination displays three cusps at the corresponding time intervals. These time intervals are nearly identical to or at least overlap with three of the four potential archeomagnetic jerks suggested by Gallet et al. (2003) from the European archeomagnetic data. A comparison of the PSV curves for neighboring countries/regions revealed that European archeomagnetic jerks at ~ 800 BC, ~ AD 200, ~ AD 800, and ~ AD 1400 were all preserved in East Asia, suggesting that the archeomagnetic jerks were global (or at least northern hemispheric) features.

Original languageEnglish
Pages (from-to)173-181
Number of pages9
JournalEarth and Planetary Science Letters
Volume294
Issue number1-2
DOIs
Publication statusPublished - 2010 May 1

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secular variations
Korea
secular variation
declination
magnetic declination
occurrences
inclination
Kilns
prediction
hearths
intervals
peninsulas
predictions
cusps
plots
curves
global model
comparison
Asia
material

Keywords

  • Archeomagnetic jerk
  • Archeomagnetism
  • Geomagnetic field
  • Geomagnetic jerk
  • Secular variation

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Geophysics
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science

Cite this

Archeomagnetic secular variation from Korea : Implication for the occurrence of global archeomagnetic jerks. / Yu, Yongjae; Doh, Seong-Jae; Kim, Wonnyon; Park, Yong Hee; Lee, Hong Jong; Yim, Youngjin; Cho, Sang Gi; Oh, Youn Suk; Lee, Dong Sung; Lee, Ho Hyeong; Gong, Min Gyu; Hyun, Dae Hwan; Cho, Jae Kyoung; Sin, Yeun Sik; Do, Moon Sun.

In: Earth and Planetary Science Letters, Vol. 294, No. 1-2, 01.05.2010, p. 173-181.

Research output: Contribution to journalArticle

Yu, Y, Doh, S-J, Kim, W, Park, YH, Lee, HJ, Yim, Y, Cho, SG, Oh, YS, Lee, DS, Lee, HH, Gong, MG, Hyun, DH, Cho, JK, Sin, YS & Do, MS 2010, 'Archeomagnetic secular variation from Korea: Implication for the occurrence of global archeomagnetic jerks', Earth and Planetary Science Letters, vol. 294, no. 1-2, pp. 173-181. https://doi.org/10.1016/j.epsl.2010.03.024
Yu, Yongjae ; Doh, Seong-Jae ; Kim, Wonnyon ; Park, Yong Hee ; Lee, Hong Jong ; Yim, Youngjin ; Cho, Sang Gi ; Oh, Youn Suk ; Lee, Dong Sung ; Lee, Ho Hyeong ; Gong, Min Gyu ; Hyun, Dae Hwan ; Cho, Jae Kyoung ; Sin, Yeun Sik ; Do, Moon Sun. / Archeomagnetic secular variation from Korea : Implication for the occurrence of global archeomagnetic jerks. In: Earth and Planetary Science Letters. 2010 ; Vol. 294, No. 1-2. pp. 173-181.
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