Remanent magnetism of sediment governs magnetofossil alignment
Article first published online: 22 APR 2014
©2014. American Geophysical Union. All Rights Reserved.
Eos, Transactions American Geophysical Union
Volume 95, Issue 16, page 140, 22 April 2014
How to Cite
2014), Remanent magnetism of sediment governs magnetofossil alignment, Eos Trans. AGU, 95(16), 140.(
- Issue published online: 22 APR 2014
- Article first published online: 22 APR 2014
- Cited By
- magnetotactic bacteria;
- natural remanent magnetization;
- sedimentary magnetism;
- relative paleointensity
Most bacteria navigate by reacting to different chemical signals in their surroundings, but some bacteria have another navigational tool in their arsenal—the Earth's magnetic field. Nestled inside these magnetotactic bacteria (MTB) are organelles called magnetosomes, filled with tiny magnetic crystals and arranged in chains, which form nano-sized compass needles. When MTB die and degrade, these tiny crystals can remain in sediment and eventually become magnetic fossils called magnetofossils.