Magnetotactic bacteria and magnetofossils: ecology, evolution and environmental implications
Magnetotactic bacteria (MTB) are a group of phylogenetically diverse and morphologically
varied microorganisms with a magnetoresponsive capability called magnetotaxis or …
varied microorganisms with a magnetoresponsive capability called magnetotaxis or …
Key signatures of magnetofossils elucidated by mutant magnetotactic bacteria and micromagnetic calculations
Magnetotactic bacteria (MTB) produce single‐stranded or multi‐stranded chains of magnetic
nanoparticles that contribute to the magnetization of sediments and rocks. Their magnetic …
nanoparticles that contribute to the magnetization of sediments and rocks. Their magnetic …
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 …
quantifying the concentration of “fine”, mostly sub‐micron ferrimagnetic particles in rocks and …
Difference in relative paleointensity recording efficiency of magnetic mineral constituents in a sediment core off Chile
T Yamazaki, J Li, T Shimono… - Journal of Geophysical …, 2023 - Wiley Online Library
Progress of relative paleointensity (RPI) estimations using marine sediments has greatly
contributed to better understanding of the behavior of the past geomagnetic field. To …
contributed to better understanding of the behavior of the past geomagnetic field. To …
Unmixing biogenic and terrigenous magnetic mineral components in red clay of the Pacific Ocean using principal component analyses of first-order reversal curve …
Red clay widely occupies the seafloor of pelagic environments in middle latitudes, and
potentially preserves long paleoceanographic records. We conducted a rock-magnetic study …
potentially preserves long paleoceanographic records. We conducted a rock-magnetic study …
In situ magnetic identification of giant, needle-shaped magnetofossils in Paleocene–Eocene Thermal Maximum sediments
Near-shore marine sediments deposited during the Paleocene–Eocene Thermal Maximum
at Wilson Lake, NJ, contain abundant conventional and giant magnetofossils. We find that …
at Wilson Lake, NJ, contain abundant conventional and giant magnetofossils. We find that …
Glacial‐interglacial circulation and climatic changes in the South Indian Ocean (Kerguelen Plateau region) recorded by detrital and biogenic magnetic minerals
Y Liu, C Kissel, A Mazaud, Y Pan… - Journal of Geophysical …, 2023 - Wiley Online Library
Abstract The Southern Ocean (SO) plays a fundamental role in global climate due to the
presence of the intense eastward‐flowing Antarctic Circumpolar Current (ACC), one of the …
presence of the intense eastward‐flowing Antarctic Circumpolar Current (ACC), one of the …
Diversification of iron‐biomineralizing organisms during the Paleocene‐Eocene Thermal Maximum: Evidence from quantitative unmixing of magnetic signatures of …
Conventional magnetofossils represent magnetic mineral remains of magnetotactic bacteria.
Giant magnetofossils have no known modern analog. Both conventional and giant …
Giant magnetofossils have no known modern analog. Both conventional and giant …
A depth‐transect of ocean deoxygenation during the Paleocene‐Eocene Thermal Maximum: Magnetofossils in sediment cores from the southeast atlantic
P Xue, L Chang, GR Dickens… - Journal of Geophysical …, 2022 - Wiley Online Library
Abstract The Paleocene‐Eocene Thermal Maximum (PETM,∼ 56 Ma) presents a past
analog for future global warming. Previous studies provided evidence for major loss of …
analog for future global warming. Previous studies provided evidence for major loss of …
Magnetic biosignatures of magnetosomal greigite from micromagnetic calculation
F Bai, L Chang, Z Pei, RJ Harrison… - Geophysical Research …, 2022 - Wiley Online Library
Greigite magnetosomes produced by magnetotactic bacteria (MTB) are widely distributed in
natural environments, but large uncertainties remain regarding their magnetic biosignatures …
natural environments, but large uncertainties remain regarding their magnetic biosignatures …