IJsland, een vulkanisch eiland in de Atlantische Oceaan, is het walhalla voor geologen die onderzoek uitvoeren naar de dynamische activiteit van vulkanische en geothermale systemen. De erupties kunnen in het slechtste geval zelfs leiden tot slachtoffers, bijvoorbeeld door giftige gassen die vrijkomen bij vulkanische activiteit. Een nieuwe methode om de dynamische processen in vulkanische en geothermale systemen te visualiseren en karakteriseren werd onderzocht.
Geologie + fysica
De binnenkant van de Aarde kan niet altijd rechtstreeks bestudeerd worden. Net daarom gebruiken geologen geofysische methoden om deze processen te visualiseren. Hiervoor worden metingen van verschillende fysische parameters uitgevoerd op het aardoppervlak en gecombineerd met mathematische modellen om een idee te krijgen van de inwendige Aarde. Met behulp van de geofysische methode waarbij elektriciteit in de aarde wordt geïnjecteerd, kan de ondergrond gevisualiseerd worden.
Kinderschoenen
Dagelijkse variaties in de ondergrond werden geobserveerd met de geofysische monitoring in het vulkanisch geothermaal gebied. De oorsprong van deze variaties is jammer genoeg nog niet volledig achterhaalt, maar de visualisatie van deze ondergrondse processen is alvast een eerste stap om deze hydro- en geothermale processen te doorgronden.
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