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1.The anatectic Xenoliths in Xingyang, Henan not only include the crust-derived and mantle-derived xenoliths, but also locate in north edge of northern Qinling Orogenic Belt’s eastern, which close to the famous Dabie ultra-high pressure metamorphic belt from 100 km south-east.
信阳深源包体还有其特殊性:同时含有壳、幔源包体,产于北秦岭造山带东段北缘,东南100km 左右就是著名的大别超高压变质岩带。收藏指正
2.There one plate dives under the edge of another and is reincorporated into the mantle.
在这里，一块板块潜没到另一板块的边缘之下并结合入地幔之中。收藏指正
3.Where this occurs, one plate is bent downwards at about a 40 angle and plunges under the other plate's leading edge, eventually to melt back into the liquid mantle below.
在海沟出现的地方，一个板块向下弯曲至40”左右的角插人另一个板块前缘的下面，最后熔汇于下面的流体地侵中。收藏指正
4.The study deducted the relation among crust depth,earthquake focus’s depth and propagation velocity of P-wave in crust and edge of crust and earth mantle from the travel-time inversion of preliminary shock(Pn) and direct wave(Pg),used several stations’ earthquake records to ascertain these parameters in an area,and established crust model of this area.
本文通过对首波Pn、直达波Pg的走时的反演,推导出地壳厚度、震源深度、P波在地壳中、壳幔边界的传播速度之间的关系式,利用多台地震记录确定一个区域内这些参数的值,从而建立出该区域的地壳模型。收藏指正
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