Mt.Paektu(也称为长白山)是位于朝鲜民主主义人民共和国(DPRK)和中国之间边界的神秘火山。尽管是历史上最大的喷发之一,对它的岩浆演化知之甚少,地质年代学,或底层结构。我们介绍了朝鲜前所未有的地震部署的接收器功能。这些是火山朝鲜一侧地壳结构的首次估计,的确,在朝鲜下面的任何地方。距火山60公里的地壳厚度为35公里,体积VP/VS为1.76,与中韩克拉通相似。VP/VS比在距火山约20公里处增加,上升到火山正下方的1.87.这表明与火山活动有关的岩浆作用已经改变了地壳的大部分区域。如此高的VP/VS值表明部分熔体存在于山以下的地壳中。Paektu.该融化区域代表了过去几千年来爆发的岩浆的潜在来源,可能与2002年至2005年之间观察到的火山动荡有关。
Mt. Paektu (also known as Changbaishan) is an enigmatic
volcano on the border between the Democratic People\'s Republic of Korea (DPRK) and
China. Despite being responsible for one of the largest eruptions in history, comparatively little is known about its magmatic evolution, geochronology, or underlying structure. We present receiver function results from an unprecedented seismic deployment in the DPRK. These are the first estimates of the crustal structure on the DPRK side of the
volcano and, indeed, for anywhere beneath the DPRK. The crust 60 km from the
volcano has a thickness of 35 km and a bulk V P/V S of 1.76, similar to that of the Sino-Korean craton. The V P/V S ratio increases ~20 km from the
volcano, rising to >1.87 directly beneath the
volcano. This shows that a large region of the crust has been modified by magmatism associated with the volcanism. Such high values of V P/V S suggest that partial melt is present in the crust beneath Mt. Paektu. This region of melt represents a potential source for magmas erupted in the last few thousand years and may be associated with an episode of volcanic unrest observed between 2002 and 2005.