石英

According to the Grt-Omp-Phe mineral geothermobarometry, the T-p conditions for the formation of the eclogite are estimated to be 730℃ and 2.7 GPa, close to the phase boundary between coesite and quartz.

Grt-Omp-Phe矿物温压计估算出榴辉岩的形成温压条件为T=730℃。p=2.7Gpa，接近于柯石英和石英的转变线。

The endothermic energy of the sands being heated during phase transformation is more than the exothermic energy ...

石英砂的膨胀率随温度的升高而增加，焙烧石英砂的膨胀率明显低于新砂。

It is found that there exist two endothermic peak at 574 ℃ and 790 ℃differently in the DSC curve of the quartz sand during heating.

结果发现，石英砂加热过程中，分别在574℃和790℃附近出现了两个吸热峰，高纯度石英砂焙烧后进行加热时只在569℃出现一个吸热峰。

The crystallization rate of Mg-petalite increases with high ZrO〓/TiO〓 proportion.β-Quartz solid solution, cristobalite, zircon,α-cordierite and enstatite appear successively at high temperature.

随后玻璃中先后析出假蓝宝石相、β-石英固溶体、方石英、锆英石、α-堇青石和顽火辉石相。

In various steps of the experimental flow,biological component,clay minerals and feldspar etc.

在流程中的不同阶段可有效去掉全样中的生物组分、粘土矿物和长石等，取得海洋沉积物全样的总陆源矿物、石英+长石、石英的相对和绝对含量，通过计算可获得各种组分的通量，通过粒度分析可获得粒度数据。

The content of quartz is 2—50％ and its average content below 20％. The content of felspar is 2—22％ and its average content is about 10％. The content of detritus vary from 40％ to 93％ and its average content is greater than 70％.

薄片成分统计表明，石英、长石含量低，岩屑成分高，石英含量为2—50％，平均含量低于20％，长石含量2—22％，平均含量约10％，岩屑含量介于40—93％，平均含量大于70％。

About Czech Yingda Electronics Co., Ltd., founded in 1995, the number of employees 500 people, plant area of 10,000 square meters and has an annual output of 100 million quartz crystal production capacity, with the industry's advanced automated laser EFG goniometer and HP-5100 Network Tester and 11 Units measurement machines, is China's largest manufacturer of quartz crystal, one of the professional.

捷英达电子有限公司成立于1995年，员工人数500人，厂房面积一万平方米，拥有可年产1亿只石英晶体的生产能力，拥有业内先进的EFG全自动激光测角仪和HP-5100网络测试仪及11台测温机，是中国最大的石英晶体专业生产商之一。

40Ar/39Ar data of quartz from the granite porphyry and from the quartz veins in the granite porphyry range from 187.87±1.53Ma to 244.88±2.48 Ma, indicating products of structural hydrothermal fluids of Late Hercynian, Indosinian or Early Yanshanian perods.

花岗斑岩和花岗斑岩内的石英脉体中石英样品的40Ar/39Ar年龄数据表明户，40Ar/39Ar坪年龄值在187.87±1.53 Ma至244.88±2.48 Ma之间，是加里东期花岗斑岩成岩作用之后，海西、印支或者燕山早期多期构造热液作用的产物。

Seven molybdenite samples from greisen ore body and quartz vein tungsten ore body associated with black tungsten ore were chosen for Re-Os isotopic dating and model age of (141.4±2.2) Ma~(158.2±2.2) Ma were obtained. The isochrone age of molybdenites from greisen type tungsten-tin ore body is (156.8±3.9) Ma, which indicates that its mineralogenetic epoch is at the Middle Jurassic, corresponds to the second stage of early Yanshanian period. And the model age for the samples from greisen ore body and from quartz vein ore body are (150.7±2.4) Ma~(158.2±2.2) Ma and (141.4±2.2) Ma~(151.0±2.4) Ma respectively, which indicates that the mineralization time of the quartz vein ore body is slightly earlier than that of greisen ore body.

文章选取云英岩型矿体及上部石英脉型钨矿体中与黑钨矿共生的辉钼矿7件，进行Re-Os等时线年龄测定，得到其模式年龄为(141.4±2.2) Ma~(158.2±2.2)Ma，其中云英型钨锡矿体中辉钼矿等时线年龄为(156.8±3.9)Ma，成矿时代为中侏罗世，对应于燕山早期第二阶段；从云英岩矿体中样品模式年龄为(150.7±2.4)Ma~(158.2±2.2)Ma，石英脉型矿体中样品模式年龄为(141.4±2.2)Ma~(151.0±2.4)Ma。

Rhyolites are a group of extrusive igneous rocks with phenocrysts (visible crystals that grew out of the molten lava) of quartz and alkali feldspar in a glassy to cryptocrystalline groundmass.

流纹岩是一组受挤压火成岩矿，包含了在玻璃基的隐晶质中的石英与碱性长石的斑晶（生在于熔岩外的可见石英晶体）。

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。