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Detailed Reference Information |
Marco, S. (2002). Late Pleistocene paleomagnetic secular variation from the Sea of Galilee, Israel. Geophysical Research Letters 29: doi: 10.1029/2001GL014038. issn: 0094-8276. |
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Stable magnetization of laminated lacustrine Lisan Formation show typical paleomagnetic secular variation and a possible geomagnetic field excursion. 14C ages from the top and assumed 0.9 mm/yr deposition rate constrain the recorded section between 29--28 ka and 22--23 ka. Samples were recovered from two trenches at the southwestern shore of the Sea of Galilee, a graben within the Dead Sea Transform system. The angle between the two site mean directions is 21¿, but retilting the beds to horizontal reduces it to 7¿, indicating pre-folding, probably depositional magnetization. Aberrations of field directions at one locality, where VGPs deviate >40¿ from the geographic north, and low NRM intensities between 29--28 ka and 25--24 ka, are contemporaneous with the Mono Lake Excursion. If the correlation is correct, the new data support the hypothesis that the excursion was global, justifying its utilization as a chronological datum. |
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Abstract |
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Keywords
Geomagnetism and Paleomagnetism, Geomagnetic excursions, Geomagnetism and Paleomagnetism, Magnetostratigraphy, Geomagnetism and Paleomagnetism, Paleomagnetic secular variation, Geomagnetism and Paleomagnetism, Time variations--secular and long term, Geomagnetism and Paleomagnetism, Rock and mineral magnetism |
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Publisher
American Geophysical Union 2000 Florida Avenue N.W. Washington, D.C. 20009-1277 USA 1-202-462-6900 1-202-328-0566 service@agu.org |
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