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- Petrography and mineralogy of the Grove Mountains (GRV) 021788 ureilite from Antarctica 南极GRV021788橄辉无球粒陨石的岩石学和矿物学特征
- Keywords tonstein characteristic of petrography and mineralogy genesis corresation of seams.; 粘土岩夹矸;岩矿特征;成因;煤层对比;
- Petrography and mineralogy 岩相学与矿物学
- Petrographically and mineralogically similar rocks quite often have different concentrations of radioactive elements. 岩石学矿物学上类似的岩石,其放射性元素丰度却往往有所不同。
- The petrography and lithogeochemical characteristics of the Archean metamorphic plutonic intrusive of the Helong area, Jilin province are discussed in this paper. 本文论述了和龙地区太古宙变质深成侵入体的岩石学、岩石化学、地球化学特征。
- Petrography and mineral chemistry of 100 meteorites collected from the Grove Mountains,Antarctica,were studied and their chemical-petrographic types were assigned. 本文主要报道了南极格罗夫山新回收的100块陨石的岩石学和矿物化学特征。
- According to the data of cores and thin sections,the paper classifies Upper Carboniferous ofthis area into three parts combining the analysis of regional Seology,petrography and paleontology. 根据川东大池干井构造带的钻井岩心和薄片资料,从岩性特征、古生物特征入手,结合区域地质综合分析,将上石炭统划分为三个段。
- In the present study, we have used methods of petrography and mineral chemistry to study alteration and low-grade metamorphism of Ordovician volcanic rocks in Mayahsuehshan, Minleh and Changma areas. 本研究针对甘肃省马雅雪山、民乐以及昌马地区之火山岩,从岩象和矿物化学的角度来探讨火山岩所受的蚀变作用或变质作用。
- I hit him fair and square on the jaw. 我不偏不倚打中他的下巴。
- It is a fact of life and you must face it. 这是严酷的现实,你必须面对它。
- She and I can't live under the same roof. 她和我不能住在一起。
- She had to scrimp and save to pay for her holiday. 她不得不为付假期的费用而苦苦攒钱。
- I'll try and rustle you up something to eat. 我设法给你弄点吃的。
- He sprang up and rushed to the door. 他跳起身,跑到门口。
- Through analyses of relativity on coal quality and mineralogy and elements,summarized geological reasons caused differences between norm al and trace elements in the two types of coal. 通过煤质特征、矿物学和元素的组相关性分析,概括了引起这两种类型煤常量和微量元素之间差弄的地质原因。
- He took sick and died a week later. 他得了病,一周后就死去了。
- He's been in and out of prison for years. 他多年来屡次进出监狱。
- Abstract: Independent silver deposits are a new type of Ag deposits found in rece nt ten years.Therefore, little research has been done on the existing form and mineralogy of silver in these deposits. 提 要 独立银矿床是近十多年来新发现的矿床类型,因而对银的赋存状态、银的矿物学方面的研究 相对较为薄弱。
- The air in the garden was warm and fragrant. 花园里的空气一片温馨。
- The child was tired and fretful. 那孩子又疲倦又烦躁不安。