Results 11 to 20 of about 3,470 (247)

Bias Corrected Estimation of Paleointensity (BiCEP): An Improved Methodology for Obtaining Paleointensity Estimates [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2021
The assumptions of paleointensity experiments are violated in many natural and archeological materials, leading to Arai plots which do not appear linear and yield inaccurate paleointensity estimates, leading to bias in the result.
Brendan Cych   +2 more
exaly   +5 more sources

Deriving confidence in paleointensity estimates [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2010
Determining the strength of the ancient geomagnetic field (paleointensity) can be time consuming and can result in high data rejection rates. The current paleointensity database is therefore dominated by studies that contain only a small number of paleomagnetic samples (n).
Greig A Paterson   +2 more
exaly   +4 more sources

New Paleointensity Data From Aniakchak Volcano, Alaska, USA

open access: yesGeochemistry, Geophysics, Geosystems, 2021
This study presents the first set of Holocene, high‐quality absolute paleointensity data from Alaska, USA. Existing paleointensity data for the Holocene are generally located at mid‐northern latitudes in North America, Europe, the Middle East, and ...
Geoffrey Cromwell, Yiming Zhang
doaj   +3 more sources

ThellierCoolPy: A Cooling‐Rate Correction Tool for Paleointensity Data [PDF]

open access: yesGeochemistry, Geophysics, Geosystems, 2021
We report a new approach of implementing cooling‐rate corrections in absolute ancient magnetic field intensity (paleointensity) studies. Nearly all methods of determining paleointensity estimates rely on rocks having recorded a thermoremanent ...
Adrian R. Muxworthy, Evelyn B. Baker
doaj   +3 more sources

Paleointensity.org: An Online, Open Source, Application for the Interpretation of Paleointensity Data

open access: yesGeochemistry, Geophysics, Geosystems, 2020
Paleointensity.org is an online, open source, application to analyze paleointensity data produced by the most common paleointensity techniques. Our application currently supports four different methods: thermal Thellier (all variations), microwave ...
Annemarieke Beguin   +2 more
exaly   +3 more sources

Investigating the utility of a high-temperature Thellier-style paleointensity experimental protocol [PDF]

open access: yesEarth, Planets and Space, 2021
High-quality data are vital to the research field of paleointensity, which has long suffered from poor-quality and/or sparse data. Previous paleointensity work has established that repeatedly heating specimens increases the opportunity for thermochemical
J. Michael Grappone   +2 more
doaj   +3 more sources

Paleointensity Estimates From Ignimbrites: The Bishop Tuff Revisited

open access: yesGeochemistry, Geophysics, Geosystems, 2018
Volcanic ash flow tuffs (ignimbrites) may contain single domain‐sized (titano) magnetite that should be good for recording geomagnetic field intensity, but due to their complex thermal histories also contain other magnetic grains, which can complicate ...
Margaret S. Avery   +3 more
doaj   +4 more sources

New criteria for selecting reliable Thellier-type paleointensity results from the 1960 Kilauea lava flows, Hawaii

open access: yesEarth, Planets and Space, 2021
Thellier-type paleointensity experiments associated with partial thermal remanent magnetization checks have been widely used to determine paleointensity values from volcanic and archaeological media.
Doohee Jeong   +5 more
doaj   +2 more sources

The Cretaceous Normal Superchron: A Mini-Review of Its Discovery, Short Reversal Events, Paleointensity, Paleosecular Variations, Paleoenvironment, Volcanism, and Mechanism

open access: yesFrontiers in Earth Science, 2022
The Cretaceous Normal Superchron (CNS) was first defined in the 1960s to explain the Cretaceous Quiet Zone in marine magnetic anomaly profiles, which includes no or fewer geomagnetic reversals.
Yutaka Yoshimura
doaj   +2 more sources

Paleointensity Estimates From the Pleistocene of Northern Israel: Implications for Hemispheric Asymmetry in the Time‐Averaged Field

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Twenty‐two sites, subjected to an IZZI‐modified Thellier‐Thellier experiment and strict selection criteria, recover a paleomagnetic axial dipole moment (PADM) of 62.2 ± 30.6 ZAm2 in Northern Israel over the Pleistocene (0.012–2.58 Ma).
L. Tauxe   +4 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy