The magnetic properties of Quaternary aeolian dusts and sediments, and their palaeoclimatic significance

BA Maher - Aeolian Research, 2011 - Elsevier
Changes in the sources, properties and fluxes of mineral aerosol ('dust') have significance
as both indicators and agents of climate change, through radiative, cloud condensation and …

The Younger Dryas impact hypothesis: a critical review

A Van Hoesel, WZ Hoek, GM Pennock… - Quaternary Science …, 2014 - Elsevier
Abstract The Younger Dryas impact hypothesis suggests that multiple extraterrestrial
airbursts or impacts resulted in the Younger Dryas cooling, extensive wildfires, megafaunal …

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 …

Time-resolved 2-million-year-old supernova activity discovered in Earth's microfossil record

P Ludwig, S Bishop, R Egli… - Proceedings of the …, 2016 - National Acad Sciences
Massive stars (M≳ 10 M⊙), which terminate their evolution as core-collapse supernovae,
are theoretically predicted to eject> 10− 5 M⊙ of the radioisotope 60Fe (half-life 2.61 Ma). If …

Classification of a complexly mixed magnetic mineral assemblage in Pacific Ocean surface sediment by electron microscopy and supervised magnetic unmixing

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

Interpretation of anhysteretic remanent magnetization carriers in magnetofossil‐rich marine sediments

Q Zhang, AP Roberts, S Ge, Y Liu, J Liu… - Journal of …, 2022 - Wiley Online Library
The anhysteretic remanent magnetization (ARM) is an important magnetic parameter for
quantifying the concentration of “fine”, mostly sub‐micron ferrimagnetic particles in rocks and …

Depositional provinces, dispersal, and origin of terrigenous sediments along the SE South American continental margin

S Razik, A Govin, CM Chiessi, T Von Dobeneck - Marine Geology, 2015 - Elsevier
Continental margin sediments of SE South America originate from various terrestrial
sources, each conveying specific magnetic and element signatures. Here, we aim to identify …

A hyperactive geomagnetic field in the late Visean (Early Carboniferous) from the late Asbian stratotype section in northwest England, UK

MW Hounslow, AJ Biggin, P Cózar… - Geochemistry …, 2024 - Wiley Online Library
The pattern of geomagnetic polarity changes during the Early Carboniferous (Mississippian)
is not known in detail. This information sparsity is addressed by determining a …

Characterization of primary and secondary magnetite in marine sediment by combining chemical and magnetic unmixing techniques

P Ludwig, R Egli, S Bishop, V Chernenko… - Global and Planetary …, 2013 - Elsevier
We present a novel technique for quantitative unmixing of primary and secondary
ferrimagnetic minerals in sediments. Hysteresis and high-resolution first-order reversal curve …

Rock magnetic‐based cyclic expression in late Visean ramp carbonates and an astrochronology for the late Asbian from Northwest England

MW Hounslow, P Cózar, ID Somerville… - Paleoceanography …, 2024 - Wiley Online Library
The late Asbian appears to mark the initial, well‐documented, onset of far‐field glacio‐
eustatic changes in equatorial Mississippian strata. This work unravels the nature of cyclicity …