Active tectonics and earthquake destructions in caves of northern and central Switzerland
Active tectonics and earthquake destructions in caves of northern and central Switzerland
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DOI：
10.5038/1827-806x.41.1.5
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发表时间：
2012
影响因子：
1.3
通讯作者：
A. Becker;P. Häuselmann;J. Eikenberg;É. Gilli
中科院分区：
文献类型：
--
作者：
A. Becker;P. Häuselmann;J. Eikenberg;É. Gilli
引言由于自然地表退化和人类活动，例如活动构造和强地震的地表表现经常被消除。城市化、农业、景观清理、沼泽排水等。在大多数所谓的不活跃洞穴中，地球表面活跃构造和古地震学研究的所有这些缺点都是微不足道的，或者至少显着减少，这些洞穴显示出可以忽略不计的持续腐蚀或侵蚀扩大。在这些洞穴中，由于几乎不存在风化过程，沉积物变形特征、断层和裂缝得到了很好的保护，因此即使在软沉积物中也能保存数十万年（Kagan et al., 2005）（Lignier & Desmet, 2002）。
INTRODUCTION The surface expressions of active tectonics and strong earthquakes are frequently obliterated due to natural surface degradation and human activities, e.g. urbanisation, agriculture, clearing of the landscape, drainage of marshes, etc. All these shortcomings for active tectonics and paleoseismological research at the Earth’s surface are insignificant, or at least significantly reduced, in most so-called inactive caves which show negligible ongoing corrosive or erosive enlargement. In such caves, sediment deformation features, faults and fractures are well protected due to almost non-existing weathering processes and can therefore be preserved for hundreds of thousands of years (Kagan et al., 2005) even in soft sediments (Lignier & Desmet, 2002).