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首页> 外文期刊>Journal of geodynamics >Current tectonic activity and differential uplift along the Cottian Alps/Po Plain boundary (NW Italy) as derived by PS-InSAR data
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Current tectonic activity and differential uplift along the Cottian Alps/Po Plain boundary (NW Italy) as derived by PS-InSAR data

机译：通过PS-InSAR数据得出的当前沿科腾阿尔卑斯山/蒲平原边界（意大利西北部）的构造活动和差异性隆升

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摘要

Iso-Kinematic maps have been derived from spatial statistics (Hot Spot and geostatistical analysis) of Permanent Scatterers Interferometric Synthetic Aperture Radar (PS-InSAR) data, and compared with geological, geomorphological, seismological and GPS data in order to analyse the current tectonics and the crustal mobility, at the boundary between the Cottian Alps and the Western Po Plain. This area corresponds to the subsurface junction between the Western Alpine chain and the Northern Apennines. PS data show that the Western Alps are currently uplifting with respect to the adjoining Western Po Plain, as confirmed by the GPS data. The Iso-Kinematic Boundary between these two sectors partly coincides with a regional N-S fault system developed along the inner seismogenic border of the Cottian Alps. Focal mechanisms indicate transpressive movements along this Iso-Kinematic Boundary, which separates two domains characterized by different fault geometry and kinematics, namely: (a) the Cottian Alps, where N-S transtensiveormal faults have developed, and (b) the subsurface Western Po Plain, where NW-SE transpressive/reverse faults are dominant. This articulated tectonic setting results from the complex strain partitioning of the oblique convergence between the European and Adria plates, which is still ongoing, as indicated by seismotectonic and geodetic data.
机译：等运动图是从永久散射体干涉合成孔径雷达（PS-InSAR）数据的空间统计数据（热点和地统计分析）中得出的，并与地质，地貌，地震和GPS数据进行了比较，以分析当前的构造和地壳的流动性，位于科蒂安阿尔卑斯山和西埔平原之间的边界。该区域对应于西部高山链条与北亚平宁山脉之间的地下交界处。 PS数据显示，如GPS数据所证实，西部阿尔卑斯山目前相对于毗邻的Western Po Plain呈上升趋势。这两个部分之间的等速运动边界与沿科特迪安阿尔卑斯山内部地震成因边界发展的区域南北断裂系统重合。震源机制表明沿该等速运动边界的超压运动，该超压运动将两个具有不同断层几何特征和运动学特征的区域分开，即：（a）科特蒂亚阿尔卑斯山，其中NS断层/正断层已经发育，以及（b）西波西地下平原，以NW-SE反压/逆断层为主。如地震构造和大地测量数据所示，这种铰接的构造环境是由于欧洲板块和阿德里亚板块之间的斜向收敛的复杂应变划分所致，而这种划分仍在进行。

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  • 来源
    《Journal of geodynamics》 |2013年第5期|65-78|共14页
  • 作者

    G. Perrone; M. Morelli; F. Piana; G. Fioraso; G. Nicolo; L Mallen; P. Cadoppi; G. Balestro; S.Tallone;

  • 作者单位

    Dipartimento di Scienze della Terra, Universita di Torino, Italy;

    ARPA Piemonte, Italy;

    CNR - lstituto di Geoscienze e Georisorse, Unita di Torino, Italy;

    CNR - lstituto di Geoscienze e Georisorse, Unita di Torino, Italy;

    ARPA Piemonte, Italy;

    ARPA Piemonte, Italy;

    Dipartimento di Scienze della Terra, Universita di Torino, Italy, Research Centre on Natural Risks in Mountain and Hilly Environments (NatRisk), Italy;

    Dipartimento di Scienze della Terra, Universita di Torino, Italy, Research Centre on Natural Risks in Mountain and Hilly Environments (NatRisk), Italy;

    CNR - lstituto di Geoscienze e Georisorse, Unita di Torino, Italy;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    PS-inSAR interferometry; current tectonics; western alps; northern apennines; seismotectonics;

    机译：PS-inSAR干涉仪;当前的构造;西方阿尔卑斯山北部亚平宁山脉;地震构造;

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