The intensity of the Earth's magnetic field over the past 160 million years
Article Abstract:
The past directional behaviour of the Earth's magnetic field is well-known but there is little information about the history of the field's intensity. A new study analyses new paleointensity samples from submarine glasses taken by the Deep Sea Drilling Project. Measurement of the natural remanent magnetization data, together with previously available data from submarine glasses for the last 160 million years, suggests that today's field strength is about double previous field strength.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1998
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Wandering why
Article Abstract:
Geophysical scientists have plotted 65 million years' worth of the earth's movements in true polar wander. The May 8, 1997 paper featuring researchers Steinberger and O'Connell's work illustrates that past polar wander measurements compare well to supporting evidence from palaeomagnetism and hotspot plate reconstruction. Similar, but inferior, movement measurements are provided by researchers Richards et al. using a different technique.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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