Title:

Ivory coast microtektites and geomagnetic reversals

Author(s):

Schneider, David A.
Kent, Dennis V.

Date:

1990

Type:

Articles

Department:

Lamont-Doherty Earth Observatory

Volume:

17

Permanent URL:

http://hdl.handle.net/10022/AC:P:10789

Book/Journal Title:

Geophysical Research Letters

Abstract:

The reported association of the Ivory Coast microtektite occurrence with the onset of the Jaramillo normal polarity subchron has given support to the notion that impact events can give rise to geomagnetic reversals. We re‐evaluate the paleomagnetic stratigraphy of two critical deep‐sea sediment cores bearing Ivory Coast microtektites (K9‐57 and V27‐239) and show that this event likely occurred during the Jaramillo subchron approximately 30 kY after its onset and 40 kY before its termination. This new result thus argues against any causal relationship between the Ivory Coast tektite‐producing event and a geomagnetic polarity reversal.

Subject(s):

Geophysics

DOI:

http://dx.doi.org/10.1029/GL017i002p00163

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