A southern hemisphere record of the Matuyama-Brunhes polarity reversal

Details A southern hemisphere record of the Matuyama-Brunhes polarity reversal A southern hemisphere record of the Matuyama-Brunhes polarity reversal

Jan 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991georl..18...81c&link_type=abstract

Geophysical Research Letters, Volume 18, Issue 1, p. 81-84

Other

43

Geomagnetism And Paleomagnetism: Dynamo Theories, Geomagnetism And Paleomagnetism: Reversals (Process, Timescale, Magnetostratigraphy), Geomagnetism And Paleomagnetism: Time Variations-Secular And Long Term

Scientific paper

We present a record of the Matuyama-Brunhes (0.73 Ma) polarity transition from a southern hemisphere deep-sea sediment core (V16-58 46°S, 30°E). The transition is recorded across at least 30 cm of section and is defined by a nearly 180° change in directions which occurs during a low in the relative intensities. An increase in the 10Be/9Be ratios associated with the intensity low suggests that the relative intensities may document a decrease in the strength of the geomagnetic field. The virtual geomagnetic pole (VGP) path is neither clearly near-nor far-sided but tracks approximately 120° west of the site longitude. Considered with other Matuyama-Brunhes transition records, this southern hemisphere record supports previous interpretations that the Matuyama-Brunhes transitional field was not dipolar. Instead, the V16-58 transition together with other records of this reversal recently obtained from this longitudinal sector suggests that nonzonal terms which are symmetric about the equator were important during this transitional field.

Affiliated with

Also associated with

No associations

Rating

A southern hemisphere record of the Matuyama-Brunhes polarity reversal 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 A southern hemisphere record of the Matuyama-Brunhes polarity reversal, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A southern hemisphere record of the Matuyama-Brunhes polarity reversal will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1895406