Geomagnetic polarity epochs: A new polarity event and the age of the Brunhes-Matuyama boundary
Science
By: Richard R. Doell and G. B. Dalrymple
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Abstract
Recent paleomagnetic-radiometric data from six rhyolite domes in the Valles Caldera, New Mexico, indicate that the last change in polarity of the earth's magnetic field from reversed to normal (the Brunhes-Matuyama boundary) occurred at about 0.7 million years ago. A previously undiscovered geomagnetic polarity event, herein named the "Jaramillo normal event," occurred about 0.9 million years ago.
Suggested Citation
Doell, R., and Dalrymple, G.B., 1966, Geomagnetic polarity epochs: A new polarity event and the age of the Brunhes-Matuyama boundary: Science, v. 152, no. 3725, p. 1060-1061, https://doi.org/10.1126/science.152.3725.1060.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Geomagnetic polarity epochs: A new polarity event and the age of the Brunhes-Matuyama boundary |
| Series title | Science |
| DOI | 10.1126/science.152.3725.1060 |
| Volume | 152 |
| Issue | 3725 |
| Year Published | 1966 |
| Language | English |
| Publisher | American Association for the Advancement of Science |
| Description | 2 p. |
| First page | 1060 |
| Last page | 1061 |
| Country | United States |
| State | New Mexico |
| Other Geospatial | Valles Caldera |