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首页> 外文期刊>Journal of Volcanology and Geothermal Research2012V243-244NOCT,15 >Monitoring active fumaroles through time-lapse electrical resistivity tomograms: an application to the Pisciarelli fumarolic field (Campi Flegrei, Italy)
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Monitoring active fumaroles through time-lapse electrical resistivity tomograms: an application to the Pisciarelli fumarolic field (Campi Flegrei, Italy)

机译：通过延时电阻率断层图像监测主动纹摩托：对Pisciarelli富马摩洛野野的应用（Campi Flegrei，意大利）

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摘要

Volcanoes are usually monitored through observations of many physical and chemical phenomena. In the most dangerous cases, as the one of the Campi Flegrei caldera (Italy), great amount of data are collected, both in discrete or continuously, and regularly stored. However, how to transform such mass of data in a deeper understanding of the volcano dynamics is still an open question. Dissimilar information are in fact always hard to compare, but just integrating all the available knowledge hazardous events could be prevented in a reliable way. Fluids, as water and gasses mobilized in the subsoil by the heat induced by deep magmatic sources, are widely recognized as the first engine of similar occurrences and the volcanic gas emissions represent, together with the seismic activity, one of the most considered precursors. At the same time, the electrical geophysical methods are the most applied in order to detect and characterize the fluid patterns in the subsoil. So, the integration of geoelectrical and geochemical observations should represent one of the most pursued approach in volcanoes monitoring. On the contrary, standard way to compare such data has been not yet codified. The ERT tomograms capability to individuate that parts of the subsoil where gasses cumulate is well understood in literature. However, we look for indications about its proficiency in associating the electrical resistivity changes relative to these zones, once compared to the geochemical time series, to deep related contributes, distinguishing them from the seasonal ones. The electrical signature of the fluid patterns, reconstructed through a time-lapse ERT approach, could be of relevance to better characterize the volcanic phenomena and their origins. In this paper a first test of ERT and geochemical time series integration was performed to enhance the understanding of the Pisciarelli fumarolic field evolution, now the most active area in the whole Campi Flegrei caldera. (C) 2019 Elsevier B.V. All rights reserved.
机译：通常通过观察许多物理和化学现象来监测火山。在最危险的情况下，作为Campi Flegrei Caldera（意大利）之一，在离散或连续和定期存储的情况下收集大量数据。但是，如何在更深入地了解火山动力学中的这种大量数据仍然是一个开放的问题。异常的信息实际上始终难以比较，但只需以可靠的方式预防所有可用知识的所有可用知识危险事件。通过深岩石源引起的热量在底层中流动的水和气体被广泛地被认为是类似事件的第一发动机，并且火山气体排放与地震活动相同，作为最受欢迎的前体之一。同时，电气地球物理方法是最施加的，以便检测和表征子石中的流体图案。因此，地电气和地球化学观测的整合应该代表火山监测中最追求的方法之一。相反，比较这些数据的标准方法尚未编纂。 ERT断层照片可以在文献中批量累积的那种底层部分的能力。然而，我们寻找关于其熟练效力与这些区域相关联的电阻率变化的指示，一旦与地球化学时间序列相比，深入相关的贡献，将它们与季节性贡献区分开来。通过时间流逝的流体图案的电气签名，通过时间流逝的ert方法重建，可以与更好地表征火山现象及其起源具有相关性。在本文中，执行了ERT和地球化学时间序列集成的第一次测试，以增强对Pisciarelli富马隆野外进化的理解，现在是整个Campi Flegrei Caldera中最活跃的区域。 （c）2019 Elsevier B.v.保留所有权利。

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