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June 24, 2024, 2:51 am UTC    
April 28, 2024 03:28PM
Geologists discover rocks with the oldest evidence yet
of Earth’s magnetic field. The 3.7 billion-year-old rocks
may extend the magnetic field’s age by 200 million years.
Jennifer Chu | MIT News, April 24, 2024
[news.mit.edu]

Ancient Rocks Reveal Earth's Magnetic Field Existed
3.7 Billion Years Ago, Science Alert, April 27, 2024
[www.sciencealert.com]

The open access paper is:

Nichols, C.I., Weiss, B.P., Eyster, A., Martin, C.R., Maloof,
A.C., Kelly, N.M., Zawaski, M.J., Mojzsis, S.J., Watson,
E.B. and Cherniak, D.J., 2024. Possible Eoarchean records
of the geomagnetic field preserved in the Isua Supracrustal
Belt, southern west Greenland. Journal of Geophysical
Research: Solid Earth, 129(4), p.e2023JB027706.
[agupubs.onlinelibrary.wiley.com]

Yours,

Paul H.

"The past is never dead. It's not even past."
William Faulkner, Act 1, Scene III, Requiem for a Nun (1951)
Subject Author Posted

Geologists discover rocks with the oldest evidence yet of Earth’s magnetic field.

Paul H. April 28, 2024 03:28PM



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