LITHOS-CAPP-2 (LITHOspheric Structure of Caledonian, Archaean and Proterozoic Provinces)

LITHOS-CAPP-2（加里东、太古代和元古代省的岩石圈结构）

• 批准号: 254474879
• 负责人: Professor Dr. Joachim Ritter
• 金额: --
• 依托单位: Sektion 2.4: Seismologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2014
• 资助国家: 德国
• 起止时间: 2013-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/254474879?language=en
• 关键词: LITHOS; CAPP; LITHOspheric; Structure; Caledonian

The collision of continents and mountain building are fundamentalprocesses of global plate tectonics which shape the Earth surface.The ongoing collision of the Himalayas happened in a similar fashionseveral times in the Baltic Shield, Scandinavia. Today theseHimalaya-type mountain ranges are deeply eroded, but they are stillpartly at relatively high elevation. The dynamic forces which supporthigh topography for long timespans are not yet completelyunderstood, e.g. no crustal root for isostatic support was found for theScandinavian mountain range. For a better understanding of theevolution and current state of the Baltic Shield an internationalseismological experiment called ScanArray was carried out. The maingoals are the imaging of the crust and upper mantle with moderntechniques. The German contribution LITHOS-CAPP (LITHOsphericStructure of Caledonian, Archaean and Proterozoic Provinces)improved the experimental part in the field as well as by data archival.The study of teleseismic shear waves and surface waves is done toimage the 3-D structure in unprecedented details. A main focus isseismic anisotropy which is a petrophysical marker of past andpresent geodynamic processes. In addition, wave phases areextracted from the seismic noise using interferometry and thesephases are also used for structural studies.

大陆碰撞和造山运动是塑造地球表面的全球板块构造的基本过程。喜马拉雅山的持续碰撞在斯堪的纳维亚的波罗的海地盾发生了几次类似的情况。如今，这些喜马拉雅山脉已被严重侵蚀，但仍有一部分处于相对较高的海拔。长时间影响地形的动力尚未完全了解，例如，斯堪的纳维亚山脉没有发现地壳均衡支持的地壳根。为了更好地了解波罗的海地盾的演变和现状，进行了一项名为“扫描阵列”的国际地震实验.主脉是地壳和上地幔的现代成像技术。德国的贡献LITHOS-CAPP（LITHOsphericStructureofCaledonian，MeseneandProterozoicProvinces）改进了野外实验部分，并通过数据存档，对岩石横波和面波进行了研究，以前所未有的细节成像三维结构。地震各向异性是过去和现在地球动力学过程的岩石物理标志。此外，利用干涉测量法从地震噪声中提取波相，这些波相也用于结构研究。

项目成果

Broadband Recordings for LITHOS-CAPP: LITHOspheric Structure of Caledonian, Archaean and Proterozoic Provinces, Sep. 2014 - Oct. 2016, Sweden and Finland

LITHOS-CAPP 宽带记录：喀里多尼亚、太古代和元古宙的岩石圈结构，2014 年 9 月至 2016 年 10 月，瑞典和芬兰

• DOI: 10.2312/gfz.b103-17029
• 发表时间: 2016
• 作者: Mauerberger;Ritter;Tilmann
• 通讯作者: Tilmann

ScanArray—A Broadband Seismological Experiment in the Baltic Shield

• DOI: 10.1785/0220210015
• 发表时间: 2021-05
• 期刊: Seismological Research Letters
• 影响因子: 3.3
• 作者: H. Thybo;N. Bulut;M. Grund;A. Mauerberger;A. Makushkina;I. Artemieva;N. Balling;Ó. Gudmundsson;V. Maupin;L. Ottemøller;J. Ritter;F. Tilmann

StackSplit - a plugin for multi-event shear wave splitting analyses in SplitLab

• DOI: 10.1016/j.cageo.2017.04.015
• 发表时间: 2017-04
• 期刊: Comput. Geosci.
• 作者: M. Grund

Anomalous azimuthal variations with 360° periodicity of Rayleigh phase velocities observed in Scandinavia

斯堪的纳维亚半岛观测到的瑞利相速度 360° 周期性的异常方位角变化

• DOI: 10.1093/gji/ggaa553
• 发表时间: 2021
• 期刊: Geophysical Journal International
• 影响因子: 2.8
• 作者: Mauerberger;Maupin;Gudmundsson;Tilmann
• 通讯作者: Tilmann

Widespread seismic anisotropy in Earth’s lowermost mantle beneath the Atlantic and Siberia

• DOI: 10.1130/g45514.1
• 发表时间: 2019-02
• 期刊: Geology
• 影响因子: 5.8
• 作者: M. Grund;J. Ritter