石英

Beds with highermagnetic susceptibility are darker in color in the Gamba basin of southern Tibet. Most ofthem are ferruginous cement, more quarts and rock fragments, fine grain sandstone.

西藏岗巴盆地质量磁化率高的层位颜色较深，大都为铁质胶结，含石英和岩屑较多，颗粒较粗，多为砂岩。

Quartz, one of the major gangue minerals, is closely related to gold mineralization.

石英是其主要的脉石矿物之一，与金矿化密切相关。

The most polluted areas is near Tianjin second gasworks and around sewage river as well as sewage irrigation area. So we can conclude the major sources of pollution is atmospheric deposition and sewage irrigation. Second, It is positive correlation between the heavy-metal contamination and layered silicate minerals, while it is negative correlation between heavy-metals and quartz , feldspar as well as other minerals.

二、重金属污染元素含量与层状硅酸盐矿物含量呈正相关，而与石英长石等矿物含量呈负相关，充分说明污染元素主要赋存在层状硅酸盐矿物中，这与矿物自身的结构有着密切的关系，层状硅酸盐矿物具有很大的层间域，有利于对其他物质的吸附作用。

40Ar-39Ar method is the first one of the possible geochronology techniques to solve this difficult scientific problem.

油气成藏作用伴生的矿物种类少，主要为碳酸盐矿物，以及少量石英和黄铁矿等，这些矿物均不适合用传统同位素年代学方法进行年龄测定，因此，油气成藏年龄是同位素年代学尚未解决的一大科学难题。40Ar-39Ar法是可能应用于油气成藏年龄测定的首选同位素定年方法。

In the 14th century, another important Italian glassmaking industry developed at Altare, near Genoa and during the 16th century, craftsmen from Altare helped extend the new styles and techniques of Italian glass to other parts of Europe, particularly France.

14世纪，另一个重要的意大利玻璃生产工业在Genoa附近的Altare得到发展，16世纪时，Altare的工匠们将新的款式和技艺传播到欧洲其他部分，特别是法国。15世纪下半叶，Murano的工匠开始使用石英砂和由海洋植物得到的碳酸钾生产特别纯净的水晶。16世纪尾，这个岛上7000居民中的3000人均参与这种玻璃生产工业。

Gold-bearing quartz vein type is common in gold deposits.

石英脉型金矿是常见的金矿床类型。

Pyrite and quartz are mainly gold-bearing minerals in Maopai gold deposit of Jiangxi.

黄铁矿和石英是主要的载金矿物。

The gold-bearing quartz vein developed in the Xiajiang Group of Neoproterozoic in southeastern Guizhou Province and western Hunan Province has a great potential.

贵州省东南部和湖南省西部接壤的大片新元古代下江群分布地区盛产的石英脉型金矿具有较大远景。

Once the gold-bearing rocks were brought to the surface, the rocks were crushed, and the gold was separated out, or leached out, typically by using arsenic or mercury (another source of environmental contamination).

这主要通过顺着含有金子的石英的纹路进行挖掘和爆破，一旦这些含有金子的矿石裸露出来，它们就会被碾碎，流水冲刷之下，金子就会被分离出来，也有人利用砷和水银(这是环境污染的另一来源)将金子过滤出来。

A fine-grained granite porphyry having a groundmass with irregular intergrowths of quartz and feldspar.

花斑岩一种细晶的花斑岩，带有不规则交生的石英和长石的基质

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。