火成岩

Any of a group of abundant rock-forming minerals occurring principally in igneous, plutonic, and some metamorphic rocks, and consisting of silicate s of aluminum with potassium, sodium, calcium, and, rarely, barium.

&任何一组由大量岩石形成的矿物，主要存在于火成岩、深成岩以及一些变性的岩石中，含有钾、钠、钙及极少的钠的铝硅酸盐，地球的外层地壳中约百分之六十是长石。&

I didn't know anything about acne scar laser treatment to remove, blend, or diminish the pocks and other marks, then.

我不知道有痤疮疤痕激光治疗清除，共混，或削弱火成岩和其他7303然后。

PGE analyses for the picrites of the middle Devonian Beitashan Formation at the south margin of Altai Mountains show that the PGE concentrations are within a narrow range, and their primitive mantle normalized PGE patterns resemble those from Grenada picrites, Lesser Antilles Arc in Atlantic, which is characterized by the enrichment of PPGE although the PGE contents of the researched picrites are higher than the latter, and lower than those from large igneous provinces.

本研究对新疆阿尔泰山南缘中泥盆世北塔山组地层中的苦橄岩的铂族元素进行了分析，结果表明：其铂族元素的含量总体变化不大，其原始地幔标准化曲线总体上和已经报道的大西洋Lesser Antilles岛弧的Grenada苦橄岩相似，均以富集把组铂族元素为特征，但总体含量比后者高，而比大火成岩省的苦橄岩低。

Topaz occurs in the igneous rock rhyolite.

黄晶出现在火成岩。

According to the literatures about the gold contents in crust, rocks and sediments published in recent 15 years and a huge amount of reliable analytical data in the study about crust and rocks accumulated, it is recommended that the gold abundance in the crust and in the exposed crust are 1.0 and 0.8 ng/g, the average contents of gold in rocks, igneous rocks, sedimentary rocks and metamorphic rocks are 0.9, 0.6, 1.0 and 1.0 ng/g, the average contents of gold in stream sediments, flood plain sediments, shallow sea sediments and soils in China are 1.4, 1.6, 1.2 and 2.0 ng/g, respectively.

根据近15年来发表的大量有关金在地壳、岩石和沉积物中含量的文献，结合作者在地壳与岩石研究中积累的金的大量可靠数据，综合给出金的地壳丰度为1.0ng/g，出露地壳丰度为0.8ng/g，金在岩石、火成岩、沉积岩和变质岩中的平均含量分别为0.9、0.6、1.0和1.0ng/g，金在中国水系沉积物、泛滥平原沉积物、浅海沉积物和土壤中的平均含量分别为1.4、1.6、1.2和2.0ng/g。

The ESEU website includes information about ESEU activities. Worksheets for teaching earth sciences at key stages 3 and 4, used in INSET training, are available from the site. The documents (in PDF format, requiring Adobe Reader) cover topics such as the rock cycle, rock identification, the changing Earth and atmosphere, plate tectonics and outdoor activities. Resources available on the site include: a virtual rock kit with images of sedimentary, igneous and metamorphic rocks; links to related sites; and recommended textbooks.

网站内容包括机构信息及活动信息介绍、地球科学教学第三和第四阶段工作表内容介绍、网上地球科学培训资料、免费文件全文内容（主题涉及到岩石圈、岩石鉴别、地球表面及大气层变化、板块构造论以及各种室外活动等内容，为pdf格式）以及相关的资源（包括各种沉积岩、火成岩及变质岩照片、相关网站链接以及一些推荐教科书）等内容。

Any of a group of crystall silicate mineral common in igneous and metamorphic rocks.

晶体硅酸盐矿物中的任何一种，广泛分布在火成岩与变质岩中。

Hydrocarbons commonly occur in sedimentary basins and are absent from intervening areas of igneous and metamorphic rocks.

在沉积盆地中，碳氢化合物很常见，而在间杂的火成岩与变质岩中则找不到。

Discriminate between igneous, metamorphic, and sedimentary rocks and describe the processes that

区别对待火成岩，变质岩和沉积岩，并描述流程

The corundum is widespread, and is found as barrel shaped crystals, large blocks or rounded grains in igneous, sedimentary and metamorphic rocks.

刚玉是普遍的，并发现为每桶形晶体，大块或圆形颗粒在火成岩，沉积岩和变质岩。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。