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EPR 9-10°N热液烟囱体的结构特征与生长历史
EPR 9-10°N 热液烟囱 硫化物 生长历史
2009/5/19
对Alvin深潜器采集的4个EPR9-10°N热液烟囱体样品进行了结构和矿物地球化学研究,建立了不同烟囱体的形成环境和生长历史. EPR9-10°N热液烟囱体在形态、结构和组成上的差异, 反映了不同的两类热液沉积环境: 类型Ⅰ烟囱体形成于高温、较强酸性、强还原性热液集中流环境, 类型Ⅱ烟囱体则形成于相对低温、较弱酸性、富锌的还原性热液环境. 类型Ⅰ烟囱体的生长始于硬石膏的形成, 在此基础上, C...
Transition Metals in Llano Vermiculite Samples: an EPR Study
Carbonates Cw and Pulsed Electron Paramagnetic Resonance Spectroscopies Phase Transformation Vermiculite
2011/12/27
Abstract: Continuous wave and pulsed electron paramagnetic resonance spectroscopies combined with thermal and chemical methods were used to identify and characterize V(IV), Fe(III), Mn(II) and Cr(III)...
FTIR Reflectance vs. EPR Studies of Structural Iron in Kaolinites
EPR Fe Kaolinite Mid and near infrared Substitution
2011/12/29
The substitution of Fe3+ in the kaolinite structure is studied by EPR spectrometry and by FTIR spectrometry on a large set of kaolins from different origins (sedimentary and primary ores, soil kaolins...