Results 161 to 170 of about 4,431,213 (212)

The Cretaceous superchron geodynamo: observations near the tangent cylinder. [PDF]

open access: yesProc Natl Acad Sci U S A, 2002
Tarduno JA, Cottrell RD, Smirnov AV.
europepmc   +1 more source

A Holocene paleosecular variation record from the northwestern Barents Sea continental margin

open access: yesGeochemistry, Geophysics, Geosystems, 2011
Leonardo Sagnotti   +4 more
openaire   +1 more source

Magnetostratigraphic resolution of the late Ediacaran paleomagnetic enigma

open access: yes
Pierce J   +13 more
europepmc   +1 more source

Quantifying paleosecular variation: Insights from numerical dynamo simulations

Earth and Planetary Science Letters, 2013
Abstract Thanks to advances in dynamo modelling, it is now possible to produce numerical sequences of magnetic polarity reversals over periods of time equivalent to several tens of millions of years. Using a set of five numerical models integrated over the equivalent of 40–50 Myr, we generated synthetic data analogous to paleomagnetic data derived ...
Lhuillier, Florian, Gilder, Stuart A
openaire   +3 more sources

Anisotropic paleosecular variation models: implications for geomagnetic field observables

Physics of the Earth and Planetary Interiors, 1999
Abstract We present a family of statistical models for paleosecular variation (PSV) of the geomagnetic field that are compatible with paleodirectional and paleointensity variations in lava flows sampling the last 5 Ma, and explore what paleomagnetic observables might be used to discriminate among the various family members. We distinguish statistical
Catherine G Constable   +1 more
openaire   +3 more sources

Paleosecular variation models for ancient times: Clues from Keweenawan lava flows

Physics of the Earth and Planetary Interiors, 2009
Abstract Statistical paleosecular variation models predict distributions of paleomagnetic vectors as a function of geographic position. Such models have been used in a variety of applications that test whether a given data set fairly represents the variability and average properties of the geomagnetic field.
Lisa Tauxe, Kenneth P. Kodama
openaire   +3 more sources

Geomagnetic paleosecular variation record spanning from 40 to 20 ka – implications for the Mono Lake excursion from Black Sea sediments

Earth and Planetary Science Letters, 2019
The Mono Lake geomagnetic excursion, characterized by low paleointensity and excursional virtual geomagnetic pole (VGP) positions at about 35 ka, has been cumulatively documented from global sites.
Jiabo Liu, N. Nowaczyk, U. Frank, H. Arz
semanticscholar   +3 more sources

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