期刊
SCIENTIFIC REPORTS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep30395
关键词
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资金
- National Natural Science Foundation of China [41504055, 41430962, 41374073, 41025013]
- China Postdoctoral Science Foundation
- Australian Research Council [DP110105419, DP120103952]
Hematite and goethite are the two most abundant iron oxides in natural environments. Their formation is controlled by multiple environmental factors; therefore, their relative concentration has been used widely to indicate climatic variations. In this study, we aimed to test whether hematite and goethite growth is influenced by ambient magnetic fields of Earth-like values. Ferrihydrite was aged at 95 degrees C in magnetic fields ranging from similar to 0 to similar to 100 mu T. Our results indicate a large influence of the applied magnetic field on hematite and goethite growth from ferrihydrite. The synthesized products are a mixture of hematite and goethite for field intensities
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