Persistent features of polarity transition records from western North America

Details Persistent features of polarity transition records from western North America Persistent features of polarity transition records from western North America

Jun 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994georl..21.1165g&link_type=abstract

Geophysical Research Letters (ISSN 0094-8276), vol. 21, no. 12, p. 1165-1168

Other

8

Earth Mantle, Geomagnetism, High Resolution, Magnetic Poles, Polarity, Sediments, Transition Points, Demagnetization, Depth Measurement, Mathematical Models, North America, Reversed Flow

Scientific paper

We report on a high resolution transition record from Searles Valley, California that appears not to be hampered by problems of smoothing or recording breakdown, and, unlikely many other sedimentary records, defines a path unconfined in longitude. A prominent feature of the record is the steady oscillation of the pole along a swath stretching from west Africa across north Eurasia to the northwest Pacific. The endpoints of the swath are associated with a change between steady and rapid field variation, consistent with results for an older transition from a nearby volcanic record. The transition cumulates with poles migrating from west Africa to South America, midway between the two earlier-proposed longitudinal bands. This path indicates the reversing field has either a wider spectrum of behavior than recently suggested or is described by a more complicated field geometry than one dominated by an equatorial dipole or strong low-order nondipole component. From a comparison with existing records from the same general geographic area, we address the significance of the swath, the lack of longitudinal confinement, patterns of steady and rapid field changes, and the temporal persistance of these features in relation to the geometry of the reversing field.

Affiliated with

Also associated with

No associations

Rating

Persistent features of polarity transition records from western North America does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Persistent features of polarity transition records from western North America, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Persistent features of polarity transition records from western North America will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1865212