Open AccessCentenary of the Discovery of Earth's Magnetic Field Reversals
Author(s) -
Kornprobst Jacques,
Lénat JeanFrançois
Publication year - 2014
Publication title -
eos, transactions american geophysical union
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.316
H-Index - 86
eISSN - 2324-9250
pISSN - 0096-3941
DOI - 10.1002/2014eo440005
Subject(s) - lava , volcano , geology , basalt , observatory , globe , earth's magnetic field , magnetic anomaly , geophysics , desert (philosophy) , seismology , magnetic field , physics , astrophysics , law , political science , medicine , quantum mechanics , ophthalmology
In the early years of the 20th century, physicist Bernard Brunhes, then director of the Geophysical Observatory of Puy de Dôme (now Observatoire de Physique du Globe de Clermont), measured for the first time reverse magnetization in samples from a basaltic lava flow and from the underlying backed argillaceous sediments from the village of Pontfarein (now Pont Farin) in the Cantal volcanic district (Auvergne, France).