Results 101 to 110 of about 4,233 (235)

The Non‐Negligible Effect of Viscosity Diffusion on the Geodynamo Process [PDF]

open access: hybrid, 2021
Chao Dong   +5 more
openalex   +1 more source

Reversals and Large-Scale Variations of the Geomagnetic Field: Similarities and Differences

open access: yesRussian Journal of Earth Sciences
It is shown that during reversals in geodynamo models the minimum amplitudes of the dipole, quadrupole and octupole coincide. Since the characteristic time of the reversal is close to the oscillations of the large-scale geomagnetic field, a similar ...
Reshetnyak Maxim
doaj   +1 more source

A hemispherical dynamo model : Implications for the Martian crustal magnetization

open access: yes, 2013
Mars Global Surveyor measurements revealed that the Martian crust is strongly magnetized in the southern hemisphere while the northern hemisphere is virtually void of magnetization. Two possible reasons have been suggested for this dichotomy: A once more
Dietrich, Wieland, Wicht, Johannes
core   +1 more source

Inferring basic parameters of the geodynamo from sequences of polarity reversals [PDF]

open access: green, 2009
Michael A. Fischer   +3 more
openalex   +1 more source

Precipitation of light elements from Earth’s liquid core: Can exsolution power the ancient geodynamo?

open access: gold, 2023
Alfred J. Wilson   +7 more
openalex   +1 more source

On the mean-field theory of the Karlsruhe Dynamo Experiment [PDF]

open access: yesNonlinear Processes in Geophysics, 2002
In the Forschungszentrum Karlsruhe an experiment has been constructed which demonstrates a homogeneous dynamo as is expected to exist in the Earth's interior. This experiment is discussed within the framework of mean-field dynamo theory.
K.-H. Rädler   +3 more
doaj  

More stable yet bimodal geodynamo during the Cretaceous superchron?

open access: yesGeophysical Research Letters, 2016
We report palaeomagnetic and 40Ar/39Ar dating results from two sequences of basaltic lava flows deposited at the same locality in western China, yet separated in time by ~50 Myr: one set lies within the Cretaceous normal superchron at 112–115 Ma and a ...
Florian Lhuillier   +8 more
doaj   +1 more source

Wavelet analysis on paleomagnetic (and computer simulated) VGP time series

open access: yesAnnals of Geophysics, 2003
We present Continuous Wavelet Transform (CWT) data analysis of Virtual Geomagnetic Pole (VGP) latitude time series. The analyzed time series are sedimentary paleomagnetic and geodynamo simulated data.
A. Siniscalchi   +3 more
doaj   +1 more source

A Hadean to Paleoarchean geodynamo recorded by single zircon crystals [PDF]

open access: bronze, 2015
J. A. Tarduno   +4 more
openalex   +1 more source

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