变质

They had suffered granulitic facies metamorphism with the peak temperatures of 700-850℃and the pressures of 8-12Kb.

孔兹岩系经历了麻粒岩相的变质作用，矿物的温压估算得到其峰期变质温度为700-850℃，压力为8-12Kb。

The U-Pb and Pb-Pb isotopic dating of zircons provided the ages of 447-462Ma representing the ages of peak granulitic metamorphism. The U-Pb dating of detrital zircons from aluminum-rich gneisses yielded older upper intercept ages which reflect the times of older materials derived from sourse rocks of the gneiss protoliths.

岩石中变质锆石的U-Pb及Pb-Pb同位素测定获得447-462Ma的年龄值，代表其麻粒岩相的变质作用时代，富铝片麻岩中含继承组分的锆石还获得较老的上交点年龄，它可能代表其沉积岩原岩源区的年龄。

The eclogites at western segment of Altyn Tagh tectonic belt occur as lens or boundins within quratz-feldspathic gniesses characterized by amphibolite-facies parageneses. It mainly experienced the prograde amphibolite-facies stage (P=6.06-8.70kb, t=615-690℃),peak eclogite-facies stage (P＞15kb,T=700-850℃), granulitic facies stage (P=11-14kb,T=750℃) and ampbiolite-facies stage (P=6.3-9.5kb,T=619-738℃) during decompression.

阿尔金构造带西段的榴辉岩呈透镜状产于长英质片麻岩中，它主要经历了进变质的角闪岩相(P=6.04-8.70Kb，T=615-690℃)、峰期的榴辉岩相(P＞15Kb，T=700-850℃)及减压过程中的麻粒岩相(P=11-14Kb，T=750℃)及角闪岩相(P=6.3-9.5，T=619-738℃)的变质作用，构成一个顺时针的PT轨迹。

The metamorphic rocks of the area consist of granulite, plagioclase-gneis, biotite leptite and various kinds of schists of granulite to amphibolite facies By reconstruction, this metamorphic series is composed of three original formations which inciude five originai rock types: intermediate-acid volcanics formation at the bottom basic-felsic bimodae volcanits formation in the middle and basic-andesitic-felsic volcanics formation at the top...

区内太古代变质岩系广泛发育，其下部为深变质的麻粒岩相地层，上部为中深变质的角闪岩相地层，后者产出红透山式铜锌矿床多处，以及张胡子沟铜矿床和大荒沟硫铁矿床等一系列块状硫化物矿床(图1)。矿石中铅同位素年令为25～26亿年，在形成时代上可以和鞍本地区鞍山群对比。

Through the research of stress metamorphism character of coal seamⅡ1 in Ludian gliding structure, the stress effecting factors of metamorphism and hydrocarbon generation process of tectonic coal are studied.

摘要： 通过对豫西滑动构造区二1煤动力变质作用特征的研究，探讨了构造煤变质成烃作用与煤化进程的应力影响因素。

According to the studies of maskelynite and the mineral assemblages in the shock veins, it seems that the nowadays shock classifications of meteorites should be further modified.

根据对冲击变质主要压标熔长石性质的最新分析结果和陨石冲击脉体矿物组合研究的成果，指出现有陨石冲击变质分类的主要特点和某些不完善之处。

The mathematic relationship between coking coal's characters and coke reactivity index and coke strength after reaction was studied.Main effect factors were analyzed by dynamics model formed by metaplast and mesophase.Taking metamorphic degree of coal, coal maceral, caking property, ash and the content of K_2O and CaO as independent variable, forecasting model was set up by the coking tests with 25 kinds of coals used in the industries.It concludes that exinite in coal makes CRI increase and CSR...

以研究炼焦煤性质与焦炭反应性、反应后强度之间的数学关系为目的，通过胶质体和中间相形成动力学解析导出模型的主要影响因子，以煤的变质程度、煤岩组成、粘结性、灰分及K2O和CaO含量等因素为自变量，由25种工业用煤的炼焦试验，建立出预测模型，并得出壳质组使反应性增大及反应后强度降低；K2O催化作用强于CaO，且两者的催化作用均随煤的变质程度不同而不同等重要结论。

They are mica, lithium beryllium tantalum and gem bearing peg matite, marine volcanic massive sulfide, magmatic copper nickel, metasedimentary iron, gold bearing low grade metamorphosed carbon clastic rocks and gold bearing ductile shear zone. A great progress has been made in recent exploration of porphyry copper.

已知矿床的主要类型有伟晶岩型矿床、与海相火山岩有关的块状硫化物矿床、岩浆铜镍硫化物型矿床、沉积变质型铁矿、浅变质含碳细碎屑岩型金矿和韧性剪切带型金矿床，近年来在斑岩型铜矿床的找矿工作有了新进展。

Using the diffuaion data of La, Sr, the in-fluence of the diffusion of modificator on the incubation period of modificationeffect and critical cooling rate has been discussed.

通过La，Sr扩散数据的比较，分析了变质元素的扩散对变质过程中出现的潜伏期，临界冷却速度等问题的影响。

The oxygen isotope equilibria were mostly attained among the marjor minerals in the M-eclogites, such as garnet, omphacite, quartz, and others, and between the M-eclogite and carbonate at higher temperature.

由于荣成地区各类榴辉岩记录的变质温度普遍高于大别山和苏鲁南段的榴辉岩，因此这一地区的榴辉岩在折返过程中一般都叠加有麻粒岩相和／或角闪岩相的退变质作用。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。