The Armutlu Network: an investigation into the seismotectonic setting of Armutlu-Yalova-Gemlik and the surrounding regions
The Armutlu Network: an investigation into the seismotectonic setting of Armutlu-Yalova-Gemlik and the surrounding regions
复制标题
阿穆特鲁网络：对阿穆特鲁-亚洛瓦-盖姆利克及周边地区地震构造环境的调查
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
J. Zschau
中科院分区：
文献类型：
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作者：
B. Tunç;D. Caka;T. S. Irmak;H. Woith;S. Tunc;Ş. Barış;M. F. Özer;B. Lühr;E. Günther;H. Grosser;J. Zschau
阿尔穆特鲁半岛位于土耳其的马尔马拉地区，位于1999年科贾埃利断裂的西端。阿尔穆特鲁半岛被认为是邻近的内Pontide缝合带，甚至是它的一部分。这条带对于理解该地区的新构造特征以及高地震活动与高热活动之间的相互作用具有关键作用，而新构造断层是通过阿尔穆特鲁南北两个分支的持续运动而产生的。在这个地区出现地垒和地堑结构，其中阿尔穆特鲁半岛代表北安纳托利亚断层系统的两个分支之间的地垒，这导致了一个复杂的右旋带。为了了解微地震活动，热液活动和该地区的构造结构之间的关系，安装了Armutlu网络（ARNET）。ARNET的目的是监测地震活动的时间演变，并调查阿尔穆特鲁半岛的变形，以及地震波和地热系统孔隙压力变化之间可能的相互作用。阿尔穆特鲁-亚洛瓦-杰姆利克地区构造十分复杂，有零星的微地震活动。地壳上部为与现今构造活动相适应的低速带和脆性变形的变质岩。最近的地震活动仅限于Gemlik湾和Yalova-Termal地区。因此，需要特别注意监测这些地区的地震活动，以了解马尔马拉地区可能和即将发生的更大地震。我们相信，这一地区将在我们理解下一个更大的地震在北安纳托利亚断层系统的西延形成的重要作用。
Armutlu Peninsula is in the Marmara Region of Turkey, located at the western end of the 1999 Kocaeli rupture. Armutlu peninsula is believed to be adjacent to the Intra-Pontide Suture Zone, or even to be a part of it. This zone has a key role for the understanding of the neo-tectonic features of this region and the interactions between high seismicity with high thermal activity and neo-tectonic faults that have originated through the ongoing movement of the two branches north and south of Armutlu. A horst and graben structure appears in this region, whereby the Armutlu Peninsula represents a horst between two branches of the North Anatolian Fault System, which results in a complex dextral zone. To understand the relationships among the micro-earthquake activity, the hydrothermal activity, and the tectonic structure of the region, the Armutlu Network (ARNET) was installed. ARNET aims to monitor the chronological evolution of the seismicity, and to investigate the deformation of the Armutlu Peninsula, and possible interactions between seismic waves and pore-pressure variations in the geothermal systems. The Armutlu–Yalova–Gemlik region has a very complicated tectonic structure, and it has scattered micro-earthquake activity. The upper part of the crust includes a low-velocity zone that conforms to present tectonic activity and the brittle deformed metamorphic rocks. Recent seismic activity has been confined to Gemlik Bay, and the Yalova–Termal region. Therefore, special attention is needed to monitor the seismic activity in these regions, to understand the likely and forthcoming larger event(s) in the Marmara Region. We believe that this region will have an important role in our understanding of the formation of the next larger earthquake at the western extension of the North Anatolian Fault system.