Congruent Paleomagnetic and Archeomagnetic Records from the Western United States: A.D. 750 to 1450

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Science  27 Apr 1984:
Vol. 224, Issue 4647, pp. 387-389
DOI: 10.1126/science.224.4647.387


Two independently dated, high-resolution paleomagnetic records, one lacustrine and one archeological, record the passage across western North America of the same nondipole feature of the geomagnetic field during the time interval from A.D. 750 to 1450. Although these sequences indicate that correlation between paleomagnetic and archeomagnetic records is feasible under certain conditions, differences between the records underscore the difficulty of dating accurately an archeological site by correlation of a single archeomagnetic direction with a secular variation curve.