a2 5 james brett hjalti franzson moneer alenthary
TRANSCRIPT
Heat transfer across the Hrossatungur gabbro in the Hafnarfjall C.V, W-Iceland
James Brett, Hjalti Franzson and Moneer Althenary
Project Outline
• Initiated in July 2013 with a three year GEORG grant to evaluate the process of magma/water interation at the base of geothermal systems.
• 5.5-4Ma Hafnarfjall-Skarðsheiði central volcano now deeply exposed.
• The study could serve as pilot work for further work on analogous intrusions.
• Valuable information gathered for the exploration of active intrusion related geothermal systems with extreme temperatures.
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Conclusions• The eroded interior of the 5,5 - 4 Ma Hafnarfjall-Skarðsheiði central
volcano in W-Iceland portrays an excellent example for the workings of an intrusive induced geothermal system.
• The dissimilar contacts of the gabbro demonstrates the vast differences between a conductive contact versus direct water / magma interaction.
• It has highlighted that with a renewal of a fresh ground water against an intrusion, a very efficient convective heat transfer mechanism can develop.
Thank you for your attention