Earth's magnetic field is probably not reversing

M Brown, M Korte, R Holme… - Proceedings of the …, 2018 - National Acad Sciences
The geomagnetic field has been decaying at a rate of∼ 5% per century from at least 1840,
with indirect observations suggesting a decay since 1600 or even earlier. This has led to the …

Recurrent ancient geomagnetic field anomalies shed light on future evolution of the South Atlantic Anomaly

A Nilsson, N Suttie, JS Stoner… - Proceedings of the …, 2022 - National Acad Sciences
The strength of the geomagnetic field has decreased rapidly over the past two centuries,
coinciding with an increasing field asymmetry due to the growth of the South Atlantic …

Low paleointensities and Ar/Ar ages from Saint Helena provide evidence for recurring magnetic field weaknesses in the South Atlantic

YA Engbers, JM Grappone, DF Mark… - Journal of Geophysical …, 2022 - Wiley Online Library
Abstract The South Atlantic Anomaly (SAA) is an area of geomagnetic weakness that
represents the most significant anomaly in the present‐day field. Notwithstanding anomalies …

Speleothem record of geomagnetic South Atlantic Anomaly recurrence

RIF Trindade, P Jaqueto… - Proceedings of the …, 2018 - National Acad Sciences
The diminishing strength of the Earth's magnetic dipole over recent millennia is
accompanied by the increasing prominence of the geomagnetic South Atlantic Anomaly …

Toward a possible next geomagnetic transition?

A De Santis, E Qamili, L Wu - Natural Hazards and Earth …, 2013 - nhess.copernicus.org
The geomagnetic field is subject to possible reversals or excursions of polarity during its
temporal evolution. Considering that:(a) in the last 83 million yr the typical average time …

[HTML][HTML] Robust characteristics of the Laschamp and Mono Lake geomagnetic excursions: results from global field models

M Korte, MC Brown, S Panovska… - Frontiers in Earth …, 2019 - frontiersin.org
Data-based global paleomagnetic field models provide a more complete view of
geomagnetic excursions than individual records. They allow the temporal and spatial field …

Areal coverage of spurious reversals of the earth's magnetic field

CGA Harrison, E Ramirez - Journal of geomagnetism and …, 1975 - jstage.jst.go.jp
The Laschamp event ended between 8000 and 20000 years ago. In several other parts of
the world, excursions of the Earth's magnetic field have been seen at about this time interval …

Paleointensity of the earth's magnetic field during the Laschamp excursion and its geomagnetic implications

P Roperch, N Bonhommet, S Levi - Earth and Planetary Science Letters, 1988 - Elsevier
The reversed paleomagnetic direction of the Laschamp and Olby flows represents a specific
feature of the geomagnetic field. This is supported by paleomagnetic evidence, showing that …

Dynamics of the earth magnetic field in the 10–75 kyr period comprising the Laschamp and Mono Lake excursions: New results from the French Chaîne des Puys in a …

C Laj, H Guillou, C Kissel - Earth and Planetary Science Letters, 2014 - Elsevier
We report here on a new paleomagnetic (directions and intensities) and coupled K/Ar and
40 Ar/39 Ar analysis of 35 different flows, emplaced in the Chaîne des Puys during the 75 to …

Evidence that the Laschamp polarity event did not occur 13 300–30 400 years ago

CR Denham, A Cox - Earth and Planetary Science Letters, 1971 - Elsevier
No evidence for a geomagnetic reversal between 30 400 and 13 300 yr ago has been found
in a paleomagnetic study of sediments from Mono Lake, California, with ages controlled by …