News in 2014
GEYSIR goes to AGU 2014-12-19 Hanna Kaasalainen
Andri, Jan and Matylda have been participating in AGU fall meeting, held in San Francisco this week. There are at least 4 poster or oral presentation from the GEYSIR group members:
- V13A-4757 (Jan Prikryl & Andri Stefánsson: Reaction Progress of Olivine Alteration as a Function of Time and CO2 Supply at 150°C – An Experimental Study)
- V21A-4740 (Matylda Hermanska & Andri Stefánsson: Geochemistry of Multicomponent Fluid Phases in the Krafla High-Enthalpy Geothermal System, NE Iceland)
- GC43A-0675 (Snorri Gudbrandsson, Prathap Moola & Andri Stefánsson: H2S Injection and Sequestration into Basalt - The SulFix Project)
- V13D-07 (Andri Stefánsson, Nicole Keller, Johann Gunnarsson Robin, Ríkey Kjartansdóttir, Shuhei Ono, Arny Sveinbjörnsdóttir: Carbon and sulfur isotopes as tracers of fluid-fluid and fluid-rock interaction in geothermal systems)
Here below are some photos from the meeting by Jan.
last editation Hanna Kaasalainen 2014-12-19
GEYSIR members involved in studying the Holuhraun eruption 2014-12-02 Hanna Kaasalainen
Now into its fourth month of ongoing activity, the Holuhraun eruption is still going strong, with a total extent of lava erupted since the onset of the eruption now reaching over 75 km2. The GEYSIR group has been involved in studying the chemistry of the gases, both using remote sensing (open-path FTIR) and filter packs to determine S, Cl, F gases and aerosols. Gas measurements have been performed both at Holuhraun and in inhabited areas around the island. Here are a few photos from the most recent field trip to Holuhraun, which took place in early November.
Close look into Baugur, the currently active crater discharging the bulk of the lava. A lava stream flows from Baugur to the East. Photo taken by Nicole Keller from the Icelandic Coast Guard Helicopter, 11.11.2014.
The FTIR pointing at the main vent Baugur. Photo by Nicole Keller, 12.11.2014
Dense gas plume headed towards the west. Photo by Nicole Keller, 12.11.2014
last editation Hanna Kaasalainen 2014-12-02
Holuhraun fissure eruption and GEYSIR in action! 2014-10-06 Matylda Heřmanská
Last week our team booked the flight to the eruption site and was amazed by the beauty of mother nature. Here is a blog about this wonderful moment with images from the eruption. Check it out http://blog.eag.eu.com/invited/holuhraun-eruption-from-the-plane/ !
Air pollution due to the Holuhraun eruption! 2014-10-06 Matylda Heřmanská
The first indication of unrest was a seismic swarm under Bárðarbunga. The Holuhraun eruption was first observed almost one month ago (with the initial eruption starting in the early hours of the 29th August 2014). At the time of writing (6th October 2014) the second eruption has shown little or no evidence of decreasing activity. Cooling lava from the eruption, now covering almost 45 km2, emmits volcanic gasses (mainly H2O, SO2 and CO2, with possible minor components of CO, H2S, HCl or HF). Once the gases are released from the lava, the prevailing airstream can blow the plume hundreds to thousands kilometers from the eruption. The gases spread from an erupting vent primarily as acid areosols (tiny acid droplets) attached to e.g. microscopic salt particles.
Due to the observed high concentration of these gases, the government of Iceland approved a plan for monitoring the air pollution in which the GEYSIR group should take part.
The first (pilot) 5-day monitoring study revealed concentrations of almost 6 ppm of SO2 and 15 ppm CO in the vicincity of the eruption site. The most frequent direction of the plume is east, east – north or less east-south, where the plume is characterized as a yellowish haze which can cause irritation of the nose, throat, and eyes.
The plan in future is to set up sampling spots (passive samplers) for precipitation all over the country as well as the regular monitoring of aerosols.
Nicole with the cooling lava front wearing gas mask and gas sensor for personal
Pinkish plume above the area between Myvatn and Dreki.
Field set-up for measurement of aerosols and gas sensor on the roof of the house.
Distribution of the gas from the eruption (in Icelandic only)
Jan Přikryl 2014-10-06
The International Carbon Conference (ICC) in Iceland 25-29th August 2014 2014-09-11 Jan Přikryl
ICC conference was held in Iceland during August 25-29th 2014, around 120 researchers attended the conference and five European project networks participated (MINSC, CarbFix, CO2-React, MetTrans and NORDICCS network).
The honorable president of Iceland Ólafur Ragnar Grímsson officially opened the conference with an inspirational speech. The ICC conference featured lectures from invitational speakers related to carbon storage followed by a poster session where the young researchers presented their work.
The conference included a field course to teach sampling techniques to the researchers. The course included three different stations in the area of the Hellisheiði geothermal power plant: 1) CO2 injection well, 2) surface geothermal formations and fluids, and 3) high temperature geothermal well fluid.
The last two nights of the conference were spent on a field trip to Þórsmörk including a visit to Selijalandsfoss, Eyjafjallajökull volcano and hiking around Þórsmörk natural reserve area.
Photo courtesy: Martin Voigt, Matylda Hermanska and Andrea Perz
last editation Matylda Heřmanská 2014-10-06