Applications of dynamic crystallization studies - Lunar olivine-normative basalts
Applications of dynamic crystallization studies - Lunar olivine-normative basalts
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动态结晶研究的应用 - 月球橄榄石标准玄武岩
DOI：
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发表时间：
1977
期刊：
影响因子：
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通讯作者：
L. Taylor
中科院分区：
文献类型：
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作者：
A. Bianco;L. Taylor
动态结晶的研究进行了两个合成玻璃组成类似的月海橄榄石规范玄武岩样品12009和15555。粘度（主要是一个功能的FeO）和矿物化学，纹理和温度的外观相的冷却的初始温度的影响进行了研究。橄榄石组合物似乎表明，对于两种类型的熔体以相同的速率冷却，有没有显着差异的过冷度在橄榄石成核，但它被发现，橄榄石成核密度不同。估计冷却速率为15555。由于冷却开始时的温度对结构、矿物化学和相的出现温度影响很大，因此在将实验数据应用于天然岩石系统时应谨慎。
Dynamic crystallization studies were performed on two synthetic glasses similar in composition to the mare olivine-normative basalt samples 12009 and 15555. The effects of viscosity (primarily a function of FeO) and the initial temperature of cooling on mineral chemistry, texture, and temperature of appearance of phases were investigated. Olivine compositions seem to indicate that, for the two types of melt cooled at the same rate, there are no significant differences in the degree of undercooling at which olivine nucleates, but it is found that olivine-nucleated densities differ. The cooling rate of 15555 is estimated. Since the temperature at which cooling is initiated affects texture, mineral chemistry, and temperature of appearance of phases so greatly, caution is recommended in the application of experimental data to natural rock systems.