Understanding fine magnetic particle systems through use of first‐order reversal curve diagrams

AP Roberts, D Heslop, X Zhao… - Reviews of …, 2014 - Wiley Online Library
First‐order reversal curve (FORC) diagrams are constructed from a class of partial magnetic
hysteresis loops known as first‐order reversal curves and are used to understand …

FORCinel: An improved algorithm for calculating first‐order reversal curve distributions using locally weighted regression smoothing

RJ Harrison, JM Feinberg - Geochemistry, Geophysics …, 2008 - Wiley Online Library
We describe a modification to existing algorithms for the calculation of first‐order reversal
curve (FORC) diagrams using locally weighted regression smoothing (often referred to as …

VARIFORC: An optimized protocol for calculating non-regular first-order reversal curve (FORC) diagrams

R Egli - Global and Planetary Change, 2013 - Elsevier
High-resolution first-order reversal curve (FORC) diagrams are increasingly employed to
characterize magnetic minerals in sediments, and especially as a magnetofossil detection …

Detection of noninteracting single domain particles using first‐order reversal curve diagrams

R Egli, AP Chen, M Winklhofer… - Geochemistry …, 2010 - Wiley Online Library
We present a highly sensitive and accurate method for quantitative detection and
characterization of noninteracting or weakly interacting uniaxial single domain particles …

Refining Holocene geochronologies using palaeomagnetic records

M Korte, MC Brown, SR Gunnarson, A Nilsson… - Quaternary …, 2019 - Elsevier
The aperiodic nature of geomagnetic field variations, both in intensity and direction, can aid
in dating archaeological artefacts, volcanic rocks, and sediment records that carry a …

Searching for single domain magnetite in the “pseudo‐single‐domain” sedimentary haystack: Implications of biogenic magnetite preservation for sediment magnetism …

AP Roberts, L Chang, D Heslop… - Journal of …, 2012 - Wiley Online Library
Magnetic hysteresis measurements of sediments have resulted in widespread reporting of
“pseudo‐single‐domain”‐like magnetic properties. In contrast, the ideal single domain (SD) …

Measuring, processing, and analyzing hysteresis data

GA Paterson, X Zhao, M Jackson… - Geochemistry …, 2018 - Wiley Online Library
Magnetic hysteresis loops are important in theoretical and applied rock magnetism with
applications to paleointensities, paleoenvironmental analysis, and tectonic studies, among …

Characterization of hematite (α‐Fe2O3), goethite (α‐FeOOH), greigite (Fe3S4), and pyrrhotite (Fe7S8) using first‐order reversal curve diagrams

AP Roberts, Q Liu, CJ Rowan, L Chang… - Journal of …, 2006 - Wiley Online Library
First‐order reversal curve (FORC) diagrams have become a standard tool in rock
magnetism, yet magnetite is the only magnetic mineral that is well characterized using …

Magnetic domain state diagnosis using hysteresis reversal curves

X Zhao, AP Roberts, D Heslop… - Journal of …, 2017 - Wiley Online Library
We present results for a series of hysteresis measurements that provide information about
remanent, induced, transient‐free, and transient magnetization components. These …

Signatures of reductive magnetic mineral diagenesis from unmixing of first‐order reversal curves

AP Roberts, X Zhao, RJ Harrison… - Journal of …, 2018 - Wiley Online Library
Diagenetic alteration of magnetic minerals occurs in all sedimentary environments and
tends to be severe in reducing environments. Magnetic minerals provide useful information …