Variations of paleointensity in the Paleogene
A. Yu. Kurazhkovskii, N. A. Kurazhkovskaya, B.I. Klain
TL;DR
This study investigates the Paleogene geomagnetic field intensity variations in Russian sedimentary rocks, revealing alternating periods of low and high amplitude fluctuations and a return to low amplitude at the end of the period.
Contribution
It provides new insights into the paleointensity variations during the Paleogene using sedimentary rock data from the Russian Plate.
Findings
Alternating low and high amplitude paleointensity variations in early Paleogene.
Large amplitude bursts up to 5 Ho observed during the Paleogene.
Paleointensity variations become subdued by the end of the Paleogene.
Abstract
Behavior of the geomagnetic field intensity in the Paleogene from sedimentary rocks of the Russian Plate was investigated. It is revealed that in the beginning of the Paleogene alternating of paleointensity variations of little amplitude (about 0.5 Ho, where Ho is the value of modern geomagnetic field taken as 40 mkT) and bursts of large amplitude (up to 5 Ho) took place. At the end of the Paleogene paleointensity variations occur only with a little amplitude.
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