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Anomalous archaeomagnetic directions and site formation processes at archaeological sites in Israel
Author(s) -
Sternberg Rob,
Lass Egon,
Marion Eric,
Katari Kaushik,
Holbrook Matthew
Publication year - 1999
Publication title -
geoarchaeology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 44
eISSN - 1520-6548
pISSN - 0883-6353
DOI - 10.1002/(sici)1520-6548(199906)14:5<415::aid-gea4>3.0.co;2-v
Subject(s) - archaeomagnetic dating , archaeology , geology , geography , physics , earth's magnetic field , quantum mechanics , magnetic field
As part of a program to investigate archaeomagnetic secular variation in Israel and implications for archaeomagnetic dating, we have identified “anomalous” results that have yielded information about site formation processes. Stereonets, vector demagnetization diagrams, and sample location maps are most useful in examining stability of magnetization and consistency of archaeomagnetic directions with each other and with what would be expected from normal secular variation. A collection of examples is presented, including: strong and hard remanence due to vitrification, unstable magnetization due to lightning strikes, superimposed thermal magnetizations, chemical remagnetization, magnetization of a hearth fragment before falling, magnetization of a hot brick after falling, and mechanical deformation of an archaeomagnetic feature. © 1999 John Wiley & Sons, Inc.