
Review of systematic synthesis methods of fine magnetite and its application in rock magnetism
Hui ZHOU, YuHao HUANG, KunPeng GE, BaiHui HAN, JunBo REN, ZhaoXia JIANG, QingSong LIU
Prog Geophy ›› 2024, Vol. 39 ›› Issue (4) : 1401-1414.
Review of systematic synthesis methods of fine magnetite and its application in rock magnetism
Fine-grained magnetite with single domain and its neighborhood is one of the dominant magnetic-carrying minerals in paleomagnetism. Its magnetic properties depend strongly on particle size, crystal form, shape and oxidation degree, etc., regardless of which will result in inaccuracy of paleomagnetic data recording and ambiguities in corresponding geological interpretations. In view of the complexity of natural magnetite particles, the computational limitation of micromagnetic modeling, and the locality of microscopic observation, we firstly elaborates on the significance of fine magnetite synthesis in rock magnetism, and then reviews the research status, applications, and challenges of fine-grained magnetite synthesis in rock magnetism. By introducing the synthesis methods of fine-grained magnetite in material magnetism, we then expound the paleomagnetic significance in geological applications. Finally, the applications of integrated magnetic synthesis method are put forward, including the study of the "magnetic unstable" particles, paleointensity and the forward and inversion of rock magnetism. This paper will provide systematic reference for the synthesis of fine-grained magnetite and its rock magnetic applications, and deepen our understanding of mineral magnetic properties and related geological processes.
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感谢周利民博士在磁性材料合成机理上给予的帮助,同时感谢王云博士在合成样品模拟实验中的帮助.
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