查询词典 igneous and metamorphic rocks

According to the isotopic age data of inherited zircons in igneous and metamorphic rocks which occur at the surface and are derived from deep crust of the North China, Yangtze blocks and Qinling-Dabie orogenic belt, the paper is mainly reports some new information of Archean rocks and briefly discusses its geological significance.

本文根据华北和扬子陆块及秦岭大别造山带地表和深部出露的各种岩石中发现的继承性锆石的测年数据，报道了太古宙基底和岩浆事件的新信息，并简要地论述其地质意义。

Any of a group of crystalline 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。

A brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone.

一种褐色或黄绿色的橄榄石，见于火成岩和变质岩中，用作宝石。

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。

Any of a group of igneous and metamorphic rocks, rich in iron and magnesium, whose origin is associated with an early phase of the development of a geosyncl .

蛇纹石一种富含铁和镁的榴辉岩类或变质岩，它的形成与地槽形成的早期阶段有关

Any of a group of igneous and metamorphic rocks, rich in iron and magnesium, whose origin is associated with an early phase of the development of a ''.

蛇纹石一种富含铁和镁的榴辉岩类或变质岩，它的形成与地槽形成的早期阶段有关

Any of a group of chemically and physically related aluminum silicate minerals, common in igneous and metamorphic rocks, characteristically splitting into flexible sheets used in insulation and electrical equipment.

云母化学上和物理上有联系的铝硅酸盐矿物群的总称，常见于火成岩和变质岩中，以易裂成柔软的薄片为特征，用于绝缘体及电气设备中

Any of a group of crystalline silicate minerals common in igneous and metamorphic rocks and containing two metallic oxides, as of magnesium, iron, calcium, sodium, or aluminum.

辉石一种晶体硅酸盐矿物，广泛分布在火成岩与变质岩中，含有两种金属氧气物，例如镁，铁，钙，钠或铝

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。