The determinative characteristics of common rock forming minerals containing quartz group , feldspar group , mica group , hornblende group , pyroxene group , olivine group and carbonatite minerals will be discussed in greater detail 对常见造岩矿物,如石英类、长石类、云母类、角闪石类、辉石类、橄榄石类、碳酸盐类矿物的鉴定特征将予以详细的说明。
During diagenetic process , there may exist the fractional crystallization of clino - pyroxene , plagioclase , olivine and ti - fe oxide , and the accumulation of olivine . the alkalic - ultramafic dikes formed by low degree partial melting ( 3 . 4 % ) of enriched mantle , consist of single olivine pyroxenolite , the dominating olivine fractionation is evident 成因上为富集地幔部分熔融作用的结果，但在成岩过程中也可能存在单斜辉石、斜长石、橄榄石和ti - fe氧化物等矿物的分离结晶作用。
High - mg volcanic rocks approach the primitive mantle compositions , and their magmatic source is close to the composition of bse , derives from the lower mantle and formed by this type - mantle rocks " fractional melting highly ( > 25 % ) . high - mg volcanic magma , formed in the axis of the emei mantle plume , underwent the crystallization differentiation of olivines and some pyroxenes ; some olivines reflect fair cumulus crystallization 高镁火山岩接近于原始岩浆的组成，岩浆源区与地球平均成分bse的成分特征相近，起源深度为下地幔，为该地幔岩较高程度的部分熔融( 25 )而形成的。高镁火山岩处于地幔柱的轴部，经历了橄榄石及一定程度的辉石分异结晶，并且橄榄石显示出一定的堆晶作用。
In the course , the condition and the process of forming and changing of minerals , the typomorphic features of minerals , the characteristics of the distribution and the evolution of minerals and their paragenetic associations in the period and the space , the methods of mineral analyses and research , the geological thermometers and the geologicial barometers of minerals , mineral paragenetic associations and paragenesis analyses will be introduced , and the magnificent and the microscopic genetic characteristics of pyrite , quartz , garnet , pyroxene , amphibole , mica , feldspar , and other minerals will be dealt with particularly 本课程主要讲述矿物及其共生组合的形成和变化的条件和过程，不同物理化学条件下矿物的成分、结构、形态、物性等标型特征以及它们之间的内在联系，矿物及其共生组合在时间上和空间上的分布和演化规律，矿物成分、结构、形貌、物性等的分析测试方法，矿物地质温度计和地质压力计对其形成环境的表征，不同体系（封闭体系、开放体系）条件下，矿物的稳定范围和彼此替代顺序的共生分析，重点介绍黄铁矿、石英、石榴石、辉石、角闪石、云母、长石等矿物（族）在成因上的宏观标志和微观信息，以及其成因信息在成岩作用和成矿作用中的地质意义。
Systematically tested , analyzed and sorted out geochemical data of intrusion - related nickel deposits in china , such as analysis of zonal structure of chrome spinels , micro - probe in situ analysis of single minerals incjude olivine and pyroxene by la - icp - ms , in which some of the research is the first time domestically 其中一些研究，如铬尖晶石环带的研究、橄榄石、辉石等单矿物的原位la ? icp ? ms分析等，在我国还是首次，为研究我国主要铜镍硫化物矿床成岩成矿过程中元素的分异和演化提供了定量结果。
