Seismic Reflection Imaging of Fluid-Filled Sills in the West Eifel Volcanic Field, Germany

IF 4.6 1区地球科学 Q1 GEOSCIENCES, MULTIDISCIPLINARY

Geophysical Research Letters Pub Date : 2024-12-22 DOI:10.1029/2024gl111425

Dario Eickhoff, Joachim R. R. Ritter, Felix Hloušek, Stefan Buske

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引用次数: 0

Abstract

We applied state-of-the-art seismic processing and imaging techniques to crustal-scale seismic reflection data from the BELCORP/DEKORP87 lines 1A and 1B. The aim of the presented work was to identify structural evidence in the Earth's crust and upper mantle related to the ongoing magmatic activity in the Quaternary West Eifel Volcanic Field (WEVF) in Central Europe where ca. 70 eruptions happened since 65 ka. Following careful signal-processing, Fresnel volume migration was applied and yielded images with exceptionally strong lithospheric reflectors in the SE of the WEVF. Sparse signal representation revealed numerous reversed polarities. Using petrophysical relations, the corresponding reflections can be interpreted as reflections from melt and/or volatile-bearing (supercritical CO₂) zones which appear as horizontally elongated lens-shaped sills. Furthermore, we observed reflections with similarly inverted polarities from structural features located around the Moho at of 31 km depth, indicating fluids or melts from the uppermost mantle and supporting magmatic underplating models.

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来源期刊

Geophysical Research Letters 地学-地球科学综合

CiteScore

9.00

自引率

9.60%

发文量

1588

审稿时长

2.2 months

期刊介绍： Geophysical Research Letters (GRL) publishes high-impact, innovative, and timely research on major scientific advances in all the major geoscience disciplines. Papers are communications-length articles and should have broad and immediate implications in their discipline or across the geosciences. GRLmaintains the fastest turn-around of all high-impact publications in the geosciences and works closely with authors to ensure broad visibility of top papers.