Environmental magnetism: principles and applications

Q Liu, AP Roberts, JC Larrasoaña… - Reviews of …, 2012 - Wiley Online Library
In environmental magnetism, rock and mineral magnetic techniques are used to investigate
the formation, transportation, deposition, and postdepositional alterations of magnetic …

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 …

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 …

[HTML][HTML] Magnetotactic bacteria and magnetofossils: ecology, evolution and environmental implications

P Goswami, K He, J Li, Y Pan, AP Roberts… - npj Biofilms and …, 2022 - nature.com
Magnetotactic bacteria (MTB) are a group of phylogenetically diverse and morphologically
varied microorganisms with a magnetoresponsive capability called magnetotaxis or …

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) …

The link between biomineralization and fossilization of bacteria: insights from field and experimental studies

J Li, K Benzerara, S Bernard, O Beyssac - Chemical Geology, 2013 - Elsevier
Fossil biominerals and fossils of microorganisms in ancient rocks contain important
biogeochemical signals. Decoding this record may reveal crucial information about the …

Key signatures of magnetofossils elucidated by mutant magnetotactic bacteria and micromagnetic calculations

M Amor, J Wan, R Egli, J Carlut, C Gatel… - Journal of …, 2022 - Wiley Online Library
Magnetotactic bacteria (MTB) produce single‐stranded or multi‐stranded chains of magnetic
nanoparticles that contribute to the magnetization of sediments and rocks. Their magnetic …

Magnetic properties of pelagic marine carbonates

AP Roberts, F Florindo, L Chang, D Heslop… - Earth-science …, 2013 - Elsevier
Pelagic carbonates are deposited far from continents, usually at water depths of 3000–6000
m, at rates below 10 cm/kyr, and are a globally important sediment type. Recent advances …

[HTML][HTML] Classification of a complexly mixed magnetic mineral assemblage in Pacific Ocean surface sediment by electron microscopy and supervised magnetic …

J Li, Y Liu, S Liu, AP Roberts, H Pan, T Xiao… - Frontiers in Earth …, 2020 - frontiersin.org
Unambiguous magnetic mineral identification in sediments is a prerequisite for
reconstructing paleomagnetic and paleoenvironmental information from environmental …

Magnetic anisotropy, magnetostatic interactions and identification of magnetofossils

J Li, W Wu, Q Liu, Y Pan - Geochemistry, Geophysics …, 2012 - Wiley Online Library
Single‐domain magnetite particles produced by magnetotactic bacteria (MTB) and aligned
in chains, called magnetosomes, are potentially important recorders of paleomagnetic …