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Dynamics and changes of the Geysers at the Haukadalur thermal area, Iceland

The Haukadalur thermal area in southwestern Iceland comprises numerous individual thermal springs, geysers, and hot pots arranged roughly in a north-south orientation. Situated on the eastern slope of a hill, this field is delimited by fissures associated with the Western Volcanic Zone. This study is based on high-resolution unmanned aerial vehicle (UAV) equipped with optical and radiometric infrared cameras to identify over 350 distinct thermal spots across various zones, and puts these in a larger context from geophysical experiments undertaken in the region. Close examination revealed that geysers and hot areas are clusters, but are generally aligning with the presumed tectonic trend in the region. Repeat thermal surveys realized in the past 10 years show systematic and chaotic changes in activity of the geysers. This presentation delves into the structural correlation between the deeper and shallower segments of these geysers, influence of the external effects and water table, and is shedding light on the mechanisms underlying geyser and hot pot activity, with broader implications applicable to thermal fields worldwide.

Details

Author
Thomas R. Walter1
Institutionen
1GFZ, Germany
Veranstaltung
GeoSaxonia 2024
Datum
2024
DOI
10.48380/z1p0-8589
Geolocation
Iceland