磁赤铁矿
- 网络Maghemite
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X-射线衍射结果表明土壤细土和黏粒中赤铁矿含量与风化成土时间呈正比增加。同时,土壤有磁铁矿含量减少、磁赤铁矿增加的趋势。
Also , X-ray diffraction studies indicate that the hematite contents in fine-earth fraction and clay fraction rise with increase in soil-forming age and that magnetite descends while maghemite ascends in content .
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其中磁赤铁矿主要分布在具有中等磁性强度的油气显示层,而高含量(最高含量达12.5%)的磁铁矿主要位于底部干层。
In particular , the maghemite distributes mainly in the oil and gas bearing layer with the intermediate magnetic intensity . But the magnetite with the iron contents of 12.5 % distributes mainly in the dry layer at the bottom .
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磁赤铁矿/多羧基有机酸体系中五氯酚的异相光化学降解
Pentachlorophenol degradation in heterogeneous photo-maghemite-carboxylic acids system
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研究表明,红土中氧化铁矿物主要有针铁矿、赤铁矿和磁赤铁矿。
These studies show that goethite , hematite andmaghaemite are the main iron oxide minerals in the laterite .
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研究了0.2&0.4T外磁场诱导下新颖的多磁畴的磁赤铁矿核桃球超结构(由米粒形基本粒子构成)的成核、生长及自组装行为。
The nucleation , growth and self-assembly of rice-like maghemite nanocrystals have been investigated under the induction of applied magnetic fields .
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阴离子磁赤铁矿纳米颗粒能够标记多种细胞,并用于细胞、器官和动物模型的识别。
Anionic maghemite nanoparticles allow labeling of a wide cell variety and their recognition in cellular , organo typical , and animal models .
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在此基础上,研究了外加磁场对磁铁矿和磁赤铁矿纳米粒子的成核、生长以及组装行为的影响。
Based on the result , we have investigated the nucleation , growth and directional aggregation of magnetic nanoparticles in the presence of an external magnetic field .
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磁赤铁矿与赤铁矿、黄铁矿及菱铁矿含量之间相关特征初步表明,自生磁赤铁矿可能主要来源于原地赤铁矿与黄铁矿。
The correlations in contents between maghemite and hematite and between pyrite and siderite indicate that the authigenous maghemite may have originated largely from the autochthonous hematite and pyrite .
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在极端冷期降雨量和平均温度低于某个阈值的时候,虽然夏季风强度存在变化,但不足以影响磁铁矿和磁赤铁矿的形成,所以那时磁化率的变化不能很好地记录夏季风气候变化。
This may be explained when the climate was extremely dry , no magnetite / maghemite at all has been formed in the soil , and a precipitation threshold has to be crossed before the magnetic susceptibility starts to register the summer monsoon changes .
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通过等温剩磁和三轴热退磁实验确定了样品中的主要载磁矿物为赤铁矿。
We find that hematite is the main magnetic carrier mineral according to isothermal remanent magnetization acquisition and demagnetization of three orthogonal isothermal remanent magnetization .