俯冲

It is generally accepted that the moho depth is about 30~39km in this region.

认为：该区莫霍面深约为30～39km.410km的间断面有30km的深度异常，这种异常是否在过渡带正常或含水相变展布厚度的内，还是于该区俯冲带的后退有关，还需做进一步的研究论证。

In this paper we reviewed recent seismic studies of the moho, 410 and 660km discontinuities in the Japan subduction zone beneath northeast China.

总结了近年来西北太平洋俯冲前端东北地区地壳的精细结构和上地幔间断面410和660km的研究成果。

The content of element Re from the molybdenite and S isotope composition from the pyrites show that the oreforming materials may come from mixed crustal and mantle sources.

根据辉钼矿中的铼含量及矿床硫同位素特征表明，矿床的成矿物质来源为壳幔混源。矿床的形成可能与谷太平洋板块的俯冲有关，构造作用与岩浆作用的耦合是成矿的关键因素。

From two thousand feet he tried again, roll ing into his dive, beak straight down, wings full out and stable from the mome nt he passed fifty miles per hour.

他又在二千呎的高空试了一次，一等时速超过五十哩，他就翻身俯冲，尖喙笔直朝下，翅膀全部张开，稳住不动。

Mantle discontinuities ; Rectilinearity polarization filtering ; N th root slant stack ; Focal depth modification ; Subduction slab.

地幔间断面；线性-偏振滤波； N次根倾斜叠加；震源深度校正；俯冲带

In the late age of early ordovician to mid-late ordovician ,the qilian ocean crust begin to subduct northwardly and a typical trench-arc- basin system come into being.The Helan area become an extensional faulted depression influenced by the regional compressive stress and the Xiangshan area is the back arc basin of the north Qilian island arc.

早奥陶世晚期一中晚奥陶世，祁连洋壳开始向北俯冲，在北祁连地区形成了较完整的沟—弧—盆体系，贺兰山地区在挤压应力下断陷加剧，为一裂陷盆地，香山地区位于弧后盆地的靠陆一侧，鄂尔多斯盆地西缘地区为贺兰裂陷盆地的东侧斜坡。

The last part of the controlled descent will be a nosedive into the ground.

朝着地面俯冲是控制降落的最后环节。

And that the timing of subduction of the paleo-ocean basin represented by the Guanzizhen ophiolite and formation of the volcanic-magmatic island arc is Late Cambrian to Early Ordovician.

反映以关子镇蛇绿岩为代表的古洋盆的俯冲作用和形成火山-岩浆岛弧的时限可能为晚寒武世或稍早。

In the view of the plate-evolution, orogen is commonly divided into two types: subduction and collision ones.

从板块演化角度看，造山带可以划分为俯冲型造山带和碰撞型造山带。

A profound study on the rock rheology of continental crust and mantle is a key to comprehensively understand of the continental orogenesis and dynamic process of deep subduction and exhumation of the continental crustal rocks.

要深入理解大陆造山带的造山作用和大陆壳岩石的深俯冲和折返动力学过程，必须对大陆地壳及地幔岩石的流变学进行深入研究。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失