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首页> 外文期刊>Journal of Volcanology and Geothermal Research >Deep structure investigations of the geothermal field of the North Euboean Gulf, Greece, using 3-D local earthquake tomography and Curie Point Depth analysis
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Deep structure investigations of the geothermal field of the North Euboean Gulf, Greece, using 3-D local earthquake tomography and Curie Point Depth analysis

机译：使用3-D局部地震层析成像和居里点深度分析对希腊北Euboean海湾地热场进行深层结构研究

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摘要

New findings on the deep origin of the geothermal field and volcanic centres at the North Euboean Gulf (or North Evian Gulf), Central Greece, were obtained by combining a three-dimensional traveltime inversion of microseismic data recorded by an on/offshore local seismic network with a Curie Point Depth analysis based on aeromagnetic data. A magma chamber was detected from low seismic P-wave velocity values and high Poisson ratios at depths below 8 km also coincident with a Curie surface estimated at 7-8 km depth. Furthermore, it was also observed that local geothermal anomalies are generated by hydrothermal flux facilitated by NW-SE and NE-SW oriented faults. Microseismic activity is also associated with these fault systems.
机译：通过结合由陆上/近海局部地震网络记录的微震数据的三维传播时间反演，获得了希腊中部北优波亚湾（或北依云湾）地热田和火山中心深源的新发现。基于航空数据的居里点深度分析。在低于8 km的深度处从低地震P波速度值和高泊松比中检测到岩浆室，这也与在7-8 km深度处估计的居里表面重合。此外，还观察到，由西北偏南和东北偏南断层促进的热液通量产生了局部地热异常。微地震活动也与这些断层系统有关。

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