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High‐Fidelity Archeointensity Results for the Late Neolithic Period From Central China
Author(s) -
Cai Shuhui,
Tauxe Lisa,
Wang Weilin,
Deng Chenglong,
Pan Yongxin,
Yang Liping,
Qin Huafeng
Publication year - 2020
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2020gl087625
Subject(s) - earth's magnetic field , chronology , geology , secular variation , period (music) , absolute (philosophy) , geodesy , central asia , consistency (knowledge bases) , paleontology , physical geography , geography , geophysics , geometry , mathematics , magnetic field , physics , philosophy , epistemology , quantum mechanics , acoustics
Abstract Archeomagnetism focuses on exploring high‐resolution variations of the geomagnetic field over hundreds to thousands of years. In this study, we carried out a comprehensive study of chronology, absolute and relative paleointensity on a late Neolithic site in central China. Ages of the samples are constrained to be ~3,500–3,000 BCE, a period when available paleointensity data are sparse. We present a total of 64 high‐fidelity absolute paleointensities, demonstrating the field varied quickly from ~55 to ~90 ZAm 2 between ~3,500–3,000 BCE. Our results record a new archeomagnetic jerk around 3,300 BCE, which is probably non‐dipolar origin. The new results provide robust constraints on global geomagnetic models. We calculated a revised Chinese archeointensity reference curve for future application. The variations of absolute and relative paleointensity versus depth show good consistency, reinforcing the reliability of our results. This new attempt of combining absolute and relative paleointenstiy provides a useful tool for future archeomagnetic research.