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Radiometric and paleomagnetic evidence for the Emperor reversed polarity event at 0.46 ± 0.05 M.Y. in basalt lava flows from the eastern Snake River Plain, Idaho

December 31, 1981

K-Ar and paleomagnetic data from cores through a sequence of basalt flows in the eastern Snake River Plain provide evidence for a brief (0.005 to 0.01 m.y.) reversal of the geomagnetic field 0.46 ± 0.05 m.y. ago. This reversed polarity event has also been found in sea-floor magnetic anomalies and in sediment cores and is probably the Emperor event of Ryan [1972].

Citation Information

Publication Year 1981
Title Radiometric and paleomagnetic evidence for the Emperor reversed polarity event at 0.46 ± 0.05 M.Y. in basalt lava flows from the eastern Snake River Plain, Idaho
DOI 10.1029/GL008i010p01055
Authors Duane E. Champion, G. Brent Dalrymple, Mel A. Kuntz
Publication Type Article
Publication Subtype Journal Article
Series Title Geophysical Research Letters
Index ID 70188941
Record Source USGS Publications Warehouse

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Mel Kuntz

Scientist Emeritus
Geosciences and Environmental Change Science Center
Phone
303-236-5345

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