Early Cambrian renewal of the geodynamo and the origin of inner core structure

Tinghong Zhou; John A. Tarduno; Francis Nimmo; Rory D. Cottrell; Richard K. Bono; Mauricio Ibanez-Mejia; Wentao Huang; Matt Hamilton; Kenneth Kodama; Aleksey V. Smirnov; Ben Crummins; Frank Padgett

doi:10.1038/s41467-022-31677-7

Nature Communications (Jul 2022)

Early Cambrian renewal of the geodynamo and the origin of inner core structure

Tinghong Zhou,
John A. Tarduno,
Francis Nimmo,
Rory D. Cottrell,
Richard K. Bono,
Mauricio Ibanez-Mejia,
Wentao Huang,
Matt Hamilton,
Kenneth Kodama,
Aleksey V. Smirnov,
Ben Crummins,
Frank Padgett

Affiliations

Tinghong Zhou: Department Earth and Environmental Sciences, University of Rochester
John A. Tarduno: Department Earth and Environmental Sciences, University of Rochester
Francis Nimmo: Department Earth and Planetary Sciences, University of California
Rory D. Cottrell: Department Earth and Environmental Sciences, University of Rochester
Richard K. Bono: Department Earth, Ocean and Atmospheric Science, Florida State University
Mauricio Ibanez-Mejia: Department Geosciences, University of Arizona
Wentao Huang: Institute of Tibetan Plateau Research, Chinese Academy of Sciences
Matt Hamilton: School of Geosciences, University of Oklahoma
Kenneth Kodama: Department Earth and Environmental Sciences, Lehigh University
Aleksey V. Smirnov: Department Geol. Mining Engineering and Sciences, Michigan Technological Univ.
Ben Crummins: Department Earth and Environmental Sciences, University of Rochester
Frank Padgett: Department Earth and Environmental Sciences, University of Rochester

DOI: https://doi.org/10.1038/s41467-022-31677-7
Journal volume & issue: Vol. 13, no. 1
pp. 1 – 7

Abstract

Read online

New single crystal paleointensity data show that the geomagnetic field was renewed in the early Cambrian after near collapse in the Ediacaran Period. This implies that the innermost/outermost structure of the inner core formed 450 million yrs. ago.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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