墨西哥Popocatepetl火山区域的地磁异常

IF 0.5 4区地球科学 Q4 GEOCHEMISTRY & GEOPHYSICS

Geofisica Internacional Pub Date : 2019-04-01 DOI:10.22201/IGEOF.00167169P.2018.58.2.1953

A. Kotzarenko, V. Yutsis, V. Grimalsky, S. Koshevaya, Yu. Kotsarenko

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引用次数: 0

摘要

本文介绍并分析了在Popocatepetl火山地区观测到的不同性质的地磁异常。分析揭示了一些被认为是当地火山起源的异常:火山附近的电磁背景被发现比其他参考站噪音大得多;H分量观测到偶发的强噪声地磁活动;一些地磁脉动仅在特拉玛卡斯站(位于火山附近4公里处)观测到。地磁场分形指数在演化过程中的一些显著变化可能与火山动力学中关键过程的存在有关。

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Geomagnetic anomalies in the area of Popocatepetl volcano, Mexico

Geomagnetic anomalies of different nature observed in the area of Popocatepetl volcano are presented and analyzed in the current paper. The analysis reveals some anomalies considered to be of local volcanic origin: the EM background in the vicinity of the volcano was found to be significantly noisier than other reference stations; sporadic strong noise-like geomagnetic activity was observed in the H component; some geomagnetic pulsations were observed only at Tlamacas station (located 4 km near the volcano). Some noticeable changes in the evolution of the fractal index calculated for geomagnetic field may be connected to the presence of critical processes in the volcano dynamics.

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来源期刊

Geofisica Internacional 地学-地球化学与地球物理

CiteScore

1.00

自引率

0.00%

发文量

审稿时长

>12 weeks

期刊介绍： Geofísica internacional is a quarterly scientific journal that publishes original papers that contain topics that are interesting for the geophysical community. The journal publishes research and review articles, brief notes and reviews books about seismology, volcanology, spacial sciences, hydrology and exploration, paleomagnetism and tectonic, and physical oceanography.