讨论了在温度为300 K 条件下西藏罗布莎铬铁矿穆斯堡尔谱的特征。根据谱形将全谱分解成三套双峰,其中第Ⅰ、第Ⅱ套是由四面体中的Fe2+ 产生的,第Ⅲ套是由八面体中Fe3+ 产生的;总结出了中心位移值(δ)与铬铁矿平衡压力以及四级分裂值(QS...讨论了在温度为300 K 条件下西藏罗布莎铬铁矿穆斯堡尔谱的特征。根据谱形将全谱分解成三套双峰,其中第Ⅰ、第Ⅱ套是由四面体中的Fe2+ 产生的,第Ⅲ套是由八面体中Fe3+ 产生的;总结出了中心位移值(δ)与铬铁矿平衡压力以及四级分裂值(QS)、铬铁矿平衡温度之间的关系;探讨了铬铁矿的成因。研究结果表明,铬铁矿穆斯堡尔谱的两个重要参数δ和QS在铬铁矿成矿预测中可以作为矿物学标型特征来推测矿床的成因,参数的质量达到了铬铁矿床成矿预测之要求。展开更多
I. INTRODUCTIONIon-implantation technique is a new technique developed in recent years. It was first applied to semiconductor devices in the 1960s, and then widespread into many fields such as solid state physics and ...I. INTRODUCTIONIon-implantation technique is a new technique developed in recent years. It was first applied to semiconductor devices in the 1960s, and then widespread into many fields such as solid state physics and material science. However, only a展开更多
Triplite （Mn, Fe, Mg, Ca）2 FPO4 is a kind of rare phosphate often occurring in pegmatite. Mineralogical and structural study as well as measurements of M（?）ssbauer spectra on triplite and related minerals have bee...Triplite （Mn, Fe, Mg, Ca）2 FPO4 is a kind of rare phosphate often occurring in pegmatite. Mineralogical and structural study as well as measurements of M（?）ssbauer spectra on triplite and related minerals have been made. Kostiner et al. showed that the M（?）ssbauer spectrum of triplite at room temperature consists of two展开更多
Ⅰ. INTRODUCTION Since the discovery of recoil-less resonance and absorption of low γ-rays-M(?)ssbauer effect, the meteorites were first investigated using the M(?)ssbauer spectra by Sprenkel-Segtl et al. in 1964.
I. INTRODUCTION The interaction of the atoms in a solid leads to the vibration of atoms around their equilibrium position and hence the lattice waves with various modes. Debye.analysed the energy of the lattice vibrat...I. INTRODUCTION The interaction of the atoms in a solid leads to the vibration of atoms around their equilibrium position and hence the lattice waves with various modes. Debye.analysed the energy of the lattice vibration basing on the consideration of the elastic waves in the展开更多
By applying recently developed agglomerate gasification method, the exhausted ash slag is seen existing in the form as agglomerant. The temperature and atmosphere condition are the facts that mainly influence the proc...By applying recently developed agglomerate gasification method, the exhausted ash slag is seen existing in the form as agglomerant. The temperature and atmosphere condition are the facts that mainly influence the process of ash slag formation. Iron is the element with variable valences in the minerals of coal. The展开更多
In the structure of alkali amphiboles, Na<sup>+</sup> ions and small amounts of Ca<sup>2+</sup> occupy the M4 site, Fe<sup>2+</sup>, Mg<sup>2+</sup>, Fe<sup>3+<...In the structure of alkali amphiboles, Na<sup>+</sup> ions and small amounts of Ca<sup>2+</sup> occupy the M4 site, Fe<sup>2+</sup>, Mg<sup>2+</sup>, Fe<sup>3+</sup>, Al<sup>3+</sup> etc. are usually distributed over M1, M2 and M3 positions. According to the data of crystal structure analysis, trivalent cations (Fe<sup>3+</sup>, Al<sup>3+</sup> etc.) prefer to occupy the M2 site, Fe<sup>2+</sup> and Mg<sup>2+</sup> usually occupy M1, M3 and M2 sites.展开更多
文摘讨论了在温度为300 K 条件下西藏罗布莎铬铁矿穆斯堡尔谱的特征。根据谱形将全谱分解成三套双峰,其中第Ⅰ、第Ⅱ套是由四面体中的Fe2+ 产生的,第Ⅲ套是由八面体中Fe3+ 产生的;总结出了中心位移值(δ)与铬铁矿平衡压力以及四级分裂值(QS)、铬铁矿平衡温度之间的关系;探讨了铬铁矿的成因。研究结果表明,铬铁矿穆斯堡尔谱的两个重要参数δ和QS在铬铁矿成矿预测中可以作为矿物学标型特征来推测矿床的成因,参数的质量达到了铬铁矿床成矿预测之要求。
基金Project supported by the National Natural Science Foundation of China.
文摘I. INTRODUCTIONIon-implantation technique is a new technique developed in recent years. It was first applied to semiconductor devices in the 1960s, and then widespread into many fields such as solid state physics and material science. However, only a
基金Project supported by the National Natural Science Foundation of China
文摘Triplite （Mn, Fe, Mg, Ca）2 FPO4 is a kind of rare phosphate often occurring in pegmatite. Mineralogical and structural study as well as measurements of M（?）ssbauer spectra on triplite and related minerals have been made. Kostiner et al. showed that the M（?）ssbauer spectrum of triplite at room temperature consists of two
文摘Ⅰ. INTRODUCTION Since the discovery of recoil-less resonance and absorption of low γ-rays-M(?)ssbauer effect, the meteorites were first investigated using the M(?)ssbauer spectra by Sprenkel-Segtl et al. in 1964.
文摘I. INTRODUCTION The interaction of the atoms in a solid leads to the vibration of atoms around their equilibrium position and hence the lattice waves with various modes. Debye.analysed the energy of the lattice vibration basing on the consideration of the elastic waves in the
基金Project partly supported by the National Natural Science Foundation of China (No.4860113).
文摘By applying recently developed agglomerate gasification method, the exhausted ash slag is seen existing in the form as agglomerant. The temperature and atmosphere condition are the facts that mainly influence the process of ash slag formation. Iron is the element with variable valences in the minerals of coal. The
文摘In the structure of alkali amphiboles, Na<sup>+</sup> ions and small amounts of Ca<sup>2+</sup> occupy the M4 site, Fe<sup>2+</sup>, Mg<sup>2+</sup>, Fe<sup>3+</sup>, Al<sup>3+</sup> etc. are usually distributed over M1, M2 and M3 positions. According to the data of crystal structure analysis, trivalent cations (Fe<sup>3+</sup>, Al<sup>3+</sup> etc.) prefer to occupy the M2 site, Fe<sup>2+</sup> and Mg<sup>2+</sup> usually occupy M1, M3 and M2 sites.
