Abstract. In this work we present the application of the Global-Phase Seismic Interferometry (GloPSI) technique to a data-set recorded across the Eastern Alps with the EASI temporary seismic network (Eastern Alpine Seismic Investigation). GloPSI aims at rendering an image of the lithosphere from the waves that travel across the core before reaching the seismic stations (i.e. PKP, PKiKP, PKIKP). The technique is based on the principle that a stack of autocorrelations of transmission responses mimics the reflection response of a medium, and is used here to retrieve information about the crust-mantle boundary, such as its depth and topography. We produce images of the upper lithosphere using 64 teleseismic events. We notice that with GloPSI, we can well image the topography of the Moho in regions, where it shows a nearly planar behaviour (i.e. in the northern part of the profile, from the Bohemian massif to beneath the Northern Calcareous Alps). Below the higher crests of the Alpine chain, and the Tauern Window in particular, we cannot find evidence for a typical boundary between crust and mantle. The GloPSI results indicate the absence of an Adriatic crust made of laterally continuous layers smoothly descending southwards. On the contrary, our results confirm the observations of previous studies suggesting a structurally complex Moho topography and faulted internal Alpine crustal structure.

中文翻译：

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全球相位地震干涉法在东欧阿尔卑斯山下的莫霍面地形

摘要。在这项工作中，我们介绍了使用EASI临时地震网络（东部高山地震调查）将全球相位地震干涉法（GloPSI）技术应用于整个东阿尔卑斯山记录的数据集。GloPSI的目的是在到达地震台站（即PKP，PKiKP，PKIKP）之前，从穿过岩心的波中绘制岩石层的图像。该技术基于以下原理：传输响应的自相关堆栈模仿介质的反射响应，并在此处用于检索有关地幔边界的信息，例如其深度和地形。我们使用64个远震事件产生岩石上层的图像。我们注意到，使用GloPSI，我们可以很好地将莫霍面的地形成像，显示出几乎平坦的行为（即 在剖面的北部，从波西米亚地块到北部钙质阿尔卑斯山下面。在高山链的最高峰下方，尤其是在牛头窗下方，我们找不到壳与地幔之间典型边界的证据。GloPSI结果表明，没有由横向连续的层构成的亚得里亚海地壳，该地壳向南平稳地下降。相反，我们的结果证实了先前研究的观察结果，表明结构复杂的Moho地形和内部阿尔卑斯山地壳结构有缺陷。GloPSI结果表明，没有由横向连续的层构成的亚得里亚海地壳，该地壳向南平稳地下降。相反，我们的结果证实了先前研究的观察结果，表明结构复杂的Moho地形和内部阿尔卑斯山地壳结构有缺陷。GloPSI结果表明，没有由横向连续的层构成的亚得里亚海地壳，该地壳向南平稳地下降。相反，我们的结果证实了先前研究的观察结果，表明结构复杂的Moho地形和内部阿尔卑斯山地壳结构有缺陷。