| 1. | Certain parts of the plate boundaries along subduction zones appear to be aseismic . 沿消减带的某些板块边界似乎长期无震。 |
| 2. | The site of this destruction is another kind of plate boundary : a subduction zone 销毁旧岩石圈的地方形成另外一种板块边界:一块潜没的区域。 |
| 3. | The difficult part , he said , is predicting the development of new subduction zones in the seabed , and in comprehending how aggressively they rearrange the land 他说,难的是预测海床新的隐没带的发展,及了解他们如何积极重整土地。 |
| 4. | The high - pressured granulites are formed both in the convergent area such as the subduction zones and collision zones and in the spreading area such as the bottom of the island arcs 高压麻粒岩既可形成于汇聚型构造环境如俯冲带、碰撞带等,也可形成于伸展型构造环境如岛弧底部。 |
| 5. | This predictability most likely stems from the fact that water flowing from below subduction zones may exert significant control over when and where these faults slip silently 这样的可预测性,很可能来自于隐没带下方所流出的水,它对于何时、何地会发生无声的断层滑动,可能具有相当大的操控力。 |
| 6. | As a result , investigators now are considering possible additional tsunami threats near alaska , puerto rico and other similar subduction zones [ see box on opposite page ] 因此,观测人员现在担心阿拉斯加、波多黎各以及其他类似的隐没带附近,可能也会受到海啸的威胁(请参见右页重新思索海啸的源头) 。 |
| 7. | Similarly , any pushing force great enough to buckle a plate and form a new trench and subduction zone would certainly form one immediately adjacent to an existing spreading center 同样,任何大得足以使板块发生挠曲并形成一个新的海沟和俯冲带的推力,也当然会很快在一个现有扩展中心附近形成海沟和俯冲带。 |
| 8. | A third possibilty is that ivc colapsed primarily due to natural reasons ( climate change , tectonic activity along the subduction zone along the indo - asian plate boundary ) and that there was no indo - aryan invasion that took place 印度河流域文明衰落的第三个可能是由于自然因素(气候改变,伴随着印度雅利安人进入的可建造区域减少) ,并没有印度雅利安人入侵的发生。 |
| 9. | If all goes well , the hybrid rov will let scientists better understand fundamental processes occurring at the deep subduction zones along the continental margins where geochemical recycling of the earth ' s crust takes place 如果一切都进行得很顺利,复合型遥控探测器将可使科学家更清楚地了解,发生在大陆边缘海洋深处隐没带的地质变化,以及此处地壳物质所进行的地球化学循环内容。 |
| 10. | The southern hainan mafic dykes are strongly enriched in lile with high nb / ta ratios , indicating a magma source reconstructed by silicic - melt through partial melting of ancient subducted slides . however , the northern hainan mafic dykes with chondritic nb / ta ratio should be derived from the fiuid - metasomatized mantle related to ancient subduction zone 琼南基性岩脉强烈富k _ 2o等lile和具有较高nb ta比值,其地幔源区应受到了古俯冲板片部分熔融形成的硅质熔体的改造;而琼中基性岩脉的nb ta比值接近于球粒陨石和morb值,应为古俯冲带含水流体交代的地幔源区的产物。 |