Google says:
A geomagnetic time scale is constructed from an analysis of magnetic anomalies measured over the ocean basins and tying these anomalies to known and dated magnetic polarity reversals found on land.
The majority of the geomagnetic polarity time scale for the past 160 Myr is constructed by fitting spreading rate models to these constraints. The status of the geomagnetic polarity time scale for each geologic period is summarized in the appropriate period chapters.
Hope this helps :)
Which information is needed to construct a geomagnetic time scale? Select the two correct answers.
1 answer
1 answer