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首页> 外文期刊>Journal of Asian earth sciences >Lithospheric structures beneath the western Mongolian Plateau: Insight from S wave receiver function
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Lithospheric structures beneath the western Mongolian Plateau: Insight from S wave receiver function

机译:西蒙古高原下面的岩石结构:S波接收器功能的洞察力

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The Mongolian Plateau is located in the western segment of the Central Asian Orogenic Belt. In the Cenozoic, the western plateau was affected by the India-Asian collision; the Hangay Dome of a low-relief plateau has been formed. However, the mechanism of the uplift of the plateau and particularly the Hangay Dome is debated. In this study, we image the lithosphere-asthenosphere boundary (LAB) with S wave receiver functions. The LAB is much shallower beneath the western Mongolian Plateau (-80?90 km) than beneath the North China Craton (-150 km) and Siberian Craton (-180 km). We also found another possible deep LAB at 200?250 km depths beneath the Hangay Dome, indicating a lithospheric delamination beneath western Mongolia. Thus we conclude that the consequential asthenospheric upwelling caused the tectonic uplift of the Hangay Dome.
机译:蒙古高原位于中亚造山带的西部。 在新生代,西部高原受印度亚洲碰撞的影响; 已经形成了低浮雕高原的汉廷圆顶。 然而,争论了高原隆起的机制,特别是汉托地穹顶是争论的。 在这项研究中,我们用S波接收器功能形象岩石圈 - 近距离界面(实验室)。 西部蒙古高原(-80 km)下方的实验室较浅(-80 km)和西伯利亚克拉顿(-180 km)。 我们还在汉古穹顶下面发现了200次250公里的250公里深入了解了另一个可能的深层实验室,表明蒙古西部的岩石划分。 因此,我们得出结论,后果性哮喘升值引起了汉络圆顶的构造隆起。

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