EarthRef.org Digital Archive (ERDA) -- Magnetic Reversal Data and Timescale

Description
The figure represents magnetic data taken from multiple locations around the world. It shows whether or not the samples were formed during a time that had a normal or reversed magnetic field. Each dot represents a different rock sample, which were then used to determine when the magnetic field was normal or reversed. The magnetic time scale is also included, which was created by radiometric dating of each sample to determine their ages. Magnetic chrons are defined as periods in which magnetic polarity remains stable, i.e. Brunhes Normal Chron and Matuyama Reverse Chron.

Keywords
ERESE, magnetic field reversal data, magnetic reversal time scale, geomagnetic field reversal data time scale, polarity time scale

Copyright Owner
Enduring Resources for Earth Science Education (ERESE)

Copyright Description
The object provided can be used freely for education or research purposes only.
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