【摘要】 利用高分辨电镜对四川攀枝花富含钒、钛的磁铁矿的精细结构进行了研究,[110]方向的高分辨像清楚地显示了磁铁矿与钒磁铁矿沿[110]方向的波状紧密连生,在两相界面处和钒磁铁矿中观察到了反相畴结构及与元素间化学比有关的各种层错,并对其成因进行了讨论。更多还原

【Abstract】 The microstructures of magnetite containing vanadium and titanium, found in Panzhihua, China, were examined by high resolution electron microscopy (HREM).The [1(?)0] structural images showed the intermate intergrowth of mag netite and coulsonite along the [110] direction instead of the [111] direction, as reported previously, as a result of the exsolution of coulsonite in the matrix. The [110] antiphase domain and various stacking faults related to the nonstoichiometry of the transition metal oxides were also observed in magnetite and coulsonite, respectively. The possible genetic aspects of these defects and effectiveness on the exsolution of coulsonite are discussed as well.更多还原