查询词典 continental crust

These extensional basins were formed at the background which was the tectonic dynamic of horst-uplifing and graden -downfalling at continental crust of the Qinling under slow convergence comprehensively deep lithosphere.

中泥盆世，在伸展作用增强的背景下，在柞山一级盆地内，由次级同生断裂作用形成了断陷型三级构造热水沉积成矿盆地。

The main tectonic features of the four stages mentioned above can be summarized as follows, gneissic basement and greenstone belt in the Archean, formation and rifting of ancient continental crust in the Transition, creation and disposal of the first supercontinent Columbia in the Paleoproterozoic-Mesoproterozoic, and the assembly and disassembly of the supercontinent Rodinea under plate tectonic framework in Neoproterozoic.

这四大阶段的主要构造面貌分别是：片麻岩基底和绿岩带盆地，古陆壳的形成与裂解，第一个超级大陆即哥伦比亚超大陆的形成与离散，板块构造体制下罗迪尼亚超大陆的汇聚与离散，反映了大陆岩石圈的形成和由低级向高级的演化，因而每一阶段都有不同于前一阶段的沉积建造、火成岩类型及组合、变质作用、构造样式、构造线方向、变形方式和成矿作用。

The growth of the continental crust of southeastern China has been discussed based on the compilation of Nd isotopic model ages of metamorphic basement and granitoid rocks from the region.

中国东南变质基底岩石及各时代花岗岩的Nd同位素模式年龄的统计研究结果表明，该地区太古代—古元古代陆壳以横向增生方式形成，显生宙表现为局部的垂向增生。

All of these charac-teristics are similar to those of continental crust transformation series granite in South China,implying that their parent magma may be derived from the unexposed Proterozoic metasedimentary rocks.

这些特征都相似于华南陆壳改造系列花岗岩，它们的母岩浆可能来源于

Geochemical characteristics of 36 Tertiary mudstone samples from Kuqa depression show that the content of CaO is very high, which can somewhat dilute other major elements, trace elements and rare elements. Some reliable indicators for provenance analysis show the source rock nature of noncarbonate sediments. The REE distribution pattern is similar to that of the upper continental crust, characterized by enrichment of LREE and negative Eu anomalies. Some trace element ratios show that the source rocks are mainly felsic.

对库车坳陷第三系36件泥岩样品的地球化学特征分析表明，主量元素中CaO的含量很高，对其他主量元素以及微量和稀土元素有稀释作用，一些可靠的物源分析指标主要指示了非碳酸盐沉积物的源区性质；REE分布模式与上地壳相似，轻稀土元素富集，Eu负异常，微量元素比值显示源岩以长英质岩石为主。

HackerBR%Ratschbacher L%Webb L Exhumation of ultrahigh- pressure continental crust in east central China: Late Triassic- Early Jurassic tectonic unroofing 10.1029/2000JB900039 Journal of Geophysical Research , 2000,105

李曙光%Hart S R%郑双根中国华北华南陆块碰撞时代的钐-钕同位素年龄证据中国科学B辑， 1989，3

This paper discusses the structural characteristics of "block-zone mosaicking and multi-layer superimposition" of the continental crust of China and its multi-stage tectonic evolution.

初步探讨了中国大陆地壳&块带镶嵌多层叠覆&的结构特征和多阶段的构造演化过程。

Combining the above conclusion that there was not collision event of oceancrust to continental crust in Caledonian, we can draw a conclusion that Xuefeng ancient land which is marked by outcropped land of Proterozoic group is not an ancient land as a matter of fact, but a multipled, superimposed intracontinental orogen which experienced multiphasic intracontinental orogenic event.

结合上述加里东期华南不存在洋陆碰撞事件的结论，可以看出以元古界出露区为标志的&雪峰古陆&事实上并非古陆，而是一个经历了多期陆内造山事件的复合叠加陆内造山带

It crystallized from the silicate-rich supercritical fluid derived from the deeply subducted continental crust.

是大陆深俯冲过程中所形成的富硅酸盐超临界流体结晶的产物。

The significant innovation is that the onshore-offshore deep seismic experiment was carried out for the first time in northeastern SCS. We used 3-component Ocean Bottom Seismometers, portable land stations made in our country and marine air-gun seismic source. The seismic data obtained are in good quality and filled the blankness of the seismic surveys in this transition zone. All these provide a strong base for the study of the crustal structure. This area has the typical continental crust.

在该区首次开展海上气枪放炮和陆上流动台站与海上OBS同时记录相结合的方法，获得了高质量的数据，填补了南海东北部滨海断裂带附近深地震探测的空白，为南海东北部深部结构的研究打下了良好基础，也为研究该地区的同行提供了一个可以参考的数据源。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。