Oda, Hirokuni (2005): Recurrent geomagnetic excursions; a review for the Brunhes normal polarity chron

Leg/Site/Hole:
ODP 162
ODP 162 983
Identifier:
2007-116647
georefid

Creator:
Oda, Hirokuni
Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan
author

Identification:
Recurrent geomagnetic excursions; a review for the Brunhes normal polarity chron
2005
In: Kono, Masaru (prefacer), Yamazaki, Toshitsugu (prefacer), Frontiers of geomagnetic and paleomagnetic research
Tokyo Geographical Society, Tokyo, Japan
114
2
174-193
Until now, a large number of records of geomagnetic excursions have been reported both for volcanic rocks and sedimentary sequences. By straightening up the, extensive excursion records, 23 geomagnetic excursions were identified in total for the Brunhes. Eighteen out of 23 excursions are considered to be reliably determined and dated. Above all, Mono Lake (32-34 ka), Laschamp (39-41 ka), Blake (115-122 ka) and Iceland Basin (180-190 ka) are well-documented worldwide excursions. Others include Hilina Pali (18-23 ka), Norwegian-Greenland Sea (60-80 ka), Albuquerque (140-160 ka), Jamaica/Pringle Falls (210-220 ka), Fram Strait (255-265 ka), Kolbeinsey Ridge (280-290 ka), Calabrian Ridge 1 (310-320 ka), Agulhas Ridge (330-340 ka), Weinen (400-420 ka), West Eifel (500-510 ka), Calabrian Ridge 2 (535-545 ka), Emperor/Big Lost (550-570 ka), Calabrian Ridge 3 (580-605 ka), and Delta (665-690 ka). Most of these excursions can be correlated with minima in relative paleointensity records of Sint-800 and ODP Site 983, suggesting that excursions occur due to dominance of a non-dipole field at minima of the main dipole field intensity.
Japanese
Serial
Coverage:Geographic coordinates:
North:60.2412
West:-23.3826East: -23.3826
South:60.2412

Quaternary geology; Brunhes Chron; Cenozoic; Leg 162; magnetic excursions; Ocean Drilling Program; ODP Site 983; paleomagnetism; Quaternary; upper Quaternary;

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