Enstatite

Shock Wave Equation of State and the Stability of High-pressure Phase of Enstatite

顽火辉石的状态方程和高压相的稳定性研究

Minerals a and B in enstatite meteorites and their trace element chemistry

顽辉石陨石中A、B矿的微量元素化学意义

When the temperature reaches 650 ℃, the crystallinity of forsterite is improved , then another new mineral phase enstatite appears .

温度升高到650℃时，镁橄榄石结晶度增高，并出现顽火辉石新物相；

Study on Gr ü neisen Parameter , Shock Temperatures and Phase Stability of Shock-compressed Perovskite Enstatite

冲击压缩下钙钛矿顽火辉石的Grüneisen参数、冲击波温度及相稳定性研究

At 800 ℃, crystalline enstatite is formed .

800℃时，晶质顽火辉石生成。

At800 ℃, a new band appears at 1060 cm ~ ( - 1 ), indicating the formation of enstatite .

800℃时，1060cm~（-1）新带的出现标志着顽火辉石的生成。

A relationship optic orientation between bastite and enstatite

绢石与顽火辉石光性方位的关系

At 800 ~ 900 ℃, the crystallization of forsterite increases , meanwhile , crystalline enstatite begins to appear .

800～900℃时，镁橄榄石的含量和结晶程度增强。

A study on cosmogenic nuclides in the Qingzhen enstatite chondrite and various types of meteorites falling recently in China

清镇顽火辉石球粒陨石及我国新近降落的不同类型陨石宇宙成因核的研究

The lithophile elements in ordinary and carbonaceous chondrite groups may display either chalcophile or siderophile nature in enstatite chondrites .

普通球粒陨石和碳质球粒陨石中的亲石元素在顽火辉石球粒陨石内显示亲铜或亲铁的性质。

Equation of State and Phase Transition of ( Mg_ ( 0.92 ), Fe_ ( 0.08 )) SiO_3 Enstatite under Shock Compression and Its Geophysical Implications

顽火辉石（Mg（0.92），Fe（0.08））SiO3的冲击相变和高压状态方程及其地球物理意义

Based on the principle of geochemistry-thermodynamics , the main component , MgO and SiO_2 that form deposit , originate from forsterite and enstatite of the simatic meteorolite .

根据地球化学热力学原理，组成矿床的主要成分SiO2和MgO，主要来自硅镁质石陨石的镁橄榄石和顽火辉石。

When compared with experimental Hugoniots , the calculations demonstrate that the above mentioned two kinds of phase states are indeed possibly the high pressure phases of enstatite when it is compressed to high pressure but to different temperatures .

将计算结果与实验数据比较后表明，在相同压力但不同温度的区域，上述两组相态都可能是顽火辉石的高温高压相态。

Combined with the former analysis of experiments of Hugoniot equation of state of enstatite , it was considered that enstatite transformed into perovskite structure under shock compression . The microanalysis requires retrogressive transformation of shocked samples during the process of pressure release .

结合先前的冲击Hugoniot状态方程实验数据分析，可以认为：在冲击压缩过程中样品处于钙钛矿结构，在冲击卸载过程中样品发生了由钙钛矿结构向单链状结构的逆转相变；

The results show that with the increasing temperature magnesium aluminotitanate ( MAT ), β - quartz solid solution ( β - QSS ), sapphirine , spinel , α - cordierite , α - quartz , cristobalite , enstatite are precipitated in glass in sequence .

结果表明：随温度升高，玻璃中依次析出镁铝钛酸盐、β-石英固溶体、假蓝宝石、尖晶石、α-堇青石、α-石英、方石英、顽辉石等晶体。