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首页> 外文期刊>Journal of Volcanology and Geothermal Research >3-D density model of Mt. Etna Volcano (Southern Italy)
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3-D density model of Mt. Etna Volcano (Southern Italy)

机译：山的3-D密度模型埃特纳火山（意大利南部）

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摘要

A detailed density model of Mt. Etna and its surrounding areas has been evaluated using a 3-D inversion of the gravimetric data acquired in the 1980's. Several high-density and low-density bodies are found, penetrating from shallow depths as far down as 12 km bsl. A positive correlation (in terms of location, extent, density, and velocity) is established between several anomalies of the density model and features identified in previously published seismic tomographies. A prominent high-density body extending down to 7 km bsl is recognized in the southern part of the Valle del Bove, and interpreted as a solidified magmatic intrusion. On the western boundary of this anomaly, a low-density body is interpreted as a bubble and liquid magma mixture. Outside the central area, three other high-density anomalies are imaged and attributed to the earliest phases of volcanic activity in the area. Several interesting low-density anomalies are also identified and correlated with known fault lines and other structural features of the region.
机译：山的详细密度模型。埃特纳火山及其周边地区已通过1980年代获得的重量数据的3-D反演进行了评估。发现了几个高密度和低密度的物体，这些物体从浅深度穿透，直至12 km bsl。在密度模型的几个异常与先前发布的地震层析成像中确定的特征之间建立了正相关关系（在位置，范围，密度和速度方面）。在Valle del Bove的南部发现了一个突出的高密度物体，向下延伸至7 km bsl，并被解释为凝固的岩浆侵入。在该异常的西边界，低密度物体被解释为气泡和液体岩浆的混合物。在中心区域以外，还对其他三个高密度异常进行了成像，并归因于该区域火山活动的最早阶段。还确定了一些有趣的低密度异常并将其与该地区的已知断层线和其他结构特征相关联。

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