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 …

Low‐temperature magnetic properties of pelagic carbonates: Oxidation of biogenic magnetite and identification of magnetosome chains

L Chang, M Winklhofer, AP Roberts… - Journal of …, 2013 - Wiley Online Library
Pelagic marine carbonates provide important records of past environmental change. We
carried out detailed low‐temperature magnetic measurements on biogenic magnetite …

Magnetotactic bacterial abundance in pelagic marine environments is limited by organic carbon flux and availability of dissolved iron

AP Roberts, F Florindo, G Villa, L Chang… - Earth and Planetary …, 2011 - Elsevier
Magnetotactic bacteria intracellularly biomineralize magnetite of an ideal grain size for
recording palaeomagnetic signals. However, bacterial magnetite has only been reported in …

Organic carbon flux controls the morphology of magnetofossils in marine sediments

T Yamazaki, H Kawahata - Geology, 1998 - pubs.geoscienceworld.org
Magnetotactic bacteria produce chains of magnetite crystals within a cell. Bacterial
magnetites have characteristic morphologies and sizes that are strictly biologically …

Intracellular amorphous Ca-carbonate and magnetite biomineralization by a magnetotactic bacterium affiliated to the Alphaproteobacteria

CL Monteil, K Benzerara, N Menguy… - The ISME …, 2021 - academic.oup.com
Bacteria synthesize a wide range of intracellular submicrometer-sized inorganic precipitates
of diverse chemical compositions and structures, called biominerals. Their occurrences …

The identification and biogeochemical interpretation of fossil magnetotactic bacteria

RE Kopp, JL Kirschvink - Earth-Science Reviews, 2008 - Elsevier
Magnetotactic bacteria, which most commonly live within the oxic-anoxic transition zone
(OATZ) of aquatic environments, produce intracellular crystals of magnetic minerals …

Giant magnetofossils and hyperthermal events

L Chang, AP Roberts, W Williams, JDF Gerald… - Earth and Planetary …, 2012 - Elsevier
Magnetotactic bacteria biomineralize magnetic minerals with precisely controlled size,
morphology, and stoichiometry. These cosmopolitan bacteria are widely observed in aquatic …

Rock magnetic properties of uncultured magnetotactic bacteria

Y Pan, N Petersen, M Winklhofer, AF Davila… - Earth and Planetary …, 2005 - Elsevier
Understanding the magnetic properties of magnetite crystals (Fe3O4) produced by
magnetotactic bacteria (MTBs) is of fundamental interest in fields of geosciences …

Biogenic magnetite as a primary remanence carrier in limestone deposits

SBR Chang, JL Kirschvink, JF Stolz - Physics of the Earth and Planetary …, 1987 - Elsevier
Studies on the microbial communities and magnetic phases of samples collected from
carbonate oozes at Sugarloaf Key, FL, USA and calcareous laminated sediments from …

Abundant bacterial magnetite occurrence in oxic red clay

T Yamazaki, T Shimono - Geology, 2013 - pubs.geoscienceworld.org
Magnetotactic bacteria (MTB) produce chains of intracellular magnetite and/or greigite
crystals and respond to an ambient magnetic field. MTB are considered to be …