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Magnetostratigraphy
Magnetostratigraphy
Magnetostratigraphy is dating technique based on Earth's historical geomagnetic reversals. The stratigraphic record is divided into magnetozones—definitive layers of strata corresponding to intervals based on time periods of homogenous magnetic polarity.
Magnetstragraphic dating compares the pattern of zone's magnetic sequences with the Geomagnetic Polarity Time Scale to find absolute age for each section. This allows for dating of long time scale rocks and the development of a contiguous, understood timeline of geologic history.
MAGNETOSTRATIGRAPHY AND GEOCHRONOLOGY OF NORTHWEST ICELAND
MAGNETOSTRATIGRAPHY AND GEOCHRONOLOGY OF NORTHWEST ICELAND
I. McDougall, L. Kristj, & K. Saemundsson
1984
The paper examines lava sequences in Northwestern Iceland to discern their age. Magnetostratigraphic dating found eastern sections to be older than western ones, with both sections from an interval of 14 to 8 Ma ago in the middle to late Miocene. Additionally, The Eastern section was found to correlate with the marine magnetic anomaly record.
Magnetostratigraphy of Sediments in Mammoth Cave, Kentucky
Magnetostratigraphy of Sediments in Mammoth Cave, Kentucky
V. Schmidt
1982
Magnetostratigraphic dating in Kentucky's Mammoth Cave explored the time range of sediment deposits throughout the area. Schmidt found that deposits occur over at least one million years, two at the maximum. Evidence also points to the existence of a marine environment at the cave's MacMurray formation.
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