The mineralization and magnetization of microorganisms (magnetizing bacteria) originated in ancient times.

Recently, researchers from the Institute of Geology and Earth of the Chinese Academy of Sciences, in cooperation with scientists at home and abroad, used genealogical chronological analysis methods to reveal that magnetizing bacteria originated 3 billion years ago in ancient China and The Great Oxidation Event, which predated the Earth's large oxidation events, and was the earliest biome on Earth that could both sense magnetic fields and mineralize.
results were published February 28 in the Proceedings of the National Academy of Sciences.
whether the Earth had a nuclear generator in ancient times has been a cutting-edge scientific issue in the study of the earth's internal structure and dynamics.
is a class of microorganisms that sense the geomagnetic field and move along the magnetic line.
study of magnetizing bacteria not only helps to understand similar mineralization processes in organisms (including humans), but also provides important reference for reconstructing ancient geomagnetic fields and paleo-environmental information during geological and historical periods.
The institute's associate researchers Lin Wei, Greig A. Paterson, Dr. Wang Wei, researcher Pan Yongxin and academician Zhu Zhixiang, and other collaborators with China Agricultural University, California Institute of Technology, etc., obtained the genome sequence of non-cultivated magnetizing bacteria in the environment and regulated the mineralization of magnetic small groups of genes, at the genomic level to reconstruct the system development relationship of magnetizing bacteria, and found that the mineralized gene clusters of magnetizing bacteria evolved together with the genome.
2010, Tarduno, a geophysicist at the University of Rochester in the United States, revealed that the geomagnetic field was about half its current value 3.4 billion years ago.
Linding and others have provided independent evidence of the existence of geomagnetic fields in ancient times, indicating that the magnetic field strength of the Earth in ancient Times was not less than the minimum magnetic field strength required by magnetizing bacteria for geomagnetic motion (-6 microns), and that stable oxidation-restore transition zones may already exist in some marine areas.
important for understanding the Earth's early geological processes and marine environment.
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