查询词典 igneous and metamorphic rocks

H 5.5-6, p 3.22-3.56 g/cm3. Occurs in basic and ultrabasic igneous-rocks, scarn and regional-metamorphic rocks. As intergrowth with garnet, idocrase and wollastonite.

硬度5.5-6，比重3.22-3.56。产于基性和超基性火成岩，矽卡岩及区域变质岩中，与石榴子石、符山石、硅灰石等共生。

Any of a group of abundant rock-forming minerals occurring principally in igneous , plutonic, and some metamorphic rocks, and consisting of silicates 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。"

These results suggest that the diagenesis material of the Xiangshan volcanic intrusive complex was derived from crustal sources. The sources either had relatively lower maturity or had more juvenile mantle-derived igneous rocks than the exposed basement metamorphic rocks. Involvement of a small amount mantle-derived magma during the formation of the Xiangshan volcanic-intrusive complex was also possible. The diorite enclave, sub-quartzmonzonitic porphyry and lamprophyre were probably different mixing products between mantle and crust materals.

上述同位素示踪结果充分证实：相山火山-侵入杂岩的成岩物质主要为壳源，但与该区出露的基底变质岩相比，其物源区的成熟度相对较低或含有一定量的火成物质，并且不排除在其成岩过程中少量地幔物质的介入；闪长质包体、次石英二长斑岩及煌斑岩的成岩物质均含有一定量的地幔组分，可能为壳-幔混合作用的产物，只是受地壳物质混染的程度不同而已。

It is distributed widely in igneous rocks, metamorphic rocks and pegmatites, but is seldom concentrated to form independent cordierite deposits.

堇青石作为一种天然矿物已被研究多年，它广泛分布于岩浆岩、变质岩和伟晶岩中，但确很少富集成矿。

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 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。

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，并作为每桶发现形晶体，大块或圆形颗粒火成岩，沉积岩和。变质岩

The source rocks in the study area are mainly from acid, intermediate-basic igneous rocks and some metamorphic rocks. They are mixed products.

研究区内沉积岩母岩主要来自于酸性、中基性岩浆岩和部分变质岩，为混源产物。

Unlike igneous rocks which are formed from molten rock material, sedimentary rocks are made up of particles of previously existing rocks, including igneous, metamorphic and sedimentary rocks.

沉积岩不像火成那样是由熔融的岩石物质形成，沉积岩是由早先存在的浆岩，变质岩和沉积岩的矿物碎屑及岩石屑组成的

Igneous rocks are one of the three main types of rocks; the other types are sedimentary rocks and metamorphic rocks.

火成岩石是三种主要的岩石之一。其它两种分别是沉积岩和变质岩。

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。