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Abstract

A burning semi-coke dump site at Kohtla-Järve, Estonia has been investigated by geophysical methods. The aim of the project was to test the capability of seismic and electromagnetic surveys to detect former or active burning zones. The results of the seismic and electromagnetic measurements show different characterizations of the investigated area. As both geophysical methods are based on distinct physical principles, the results are different. The seismic investigation is based on the propagation of elastic waves in the subsurface, which is mainly influenced by discontinuities in the ground like cracks and weak zones, changes in the texture of the ground or cavities. The seismic results, processed with a focus on surface waves, show approximately 20 anomalous positions with a punctual appearance. The results of the electromagnetic survey correlate with the observations at the surface. It is assumed, that hot spots of the burning dump can be detected with electromagnetic measurements. During the field survey two of the reported seismic anomalies were mechanically excavated. At both positions the results of the survey are verified.

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/content/papers/10.3997/2214-4609.20131384
2013-09-09
2024-03-28
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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.20131384
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