News in 2015
Electrochemistry in the field 2015-09-17 Nicole Simone Keller
The Geysir group has two visitors this week, Dr. Greg Druschel, Professor at the Indiana University - Purdue University Indianapolis (IUPUI), and Dr. Don Nuzzio, founder and president of Analytical Instrument Systems Inc. Greg and Don are collaborating with Hanna on her speciation project and iron chemistry project, and the team has been collecting samples and doing in-situ measurments using electrochemical instruments in various geothermal areas of Iceland. Greg and Don will be giving a seminar as a part of the Institute of Earth Sciences Friday Seminars Series, titled "Environmental analysis and continuous in-situ measurments using electrochemistry" on Friday 17.9.2015 in the seminar room of Askja, third floor.
Below are a few impressions from the fieldwork in Geysir:
The setup at Otherrishola, with sensors in the main spring and in the outflow.
Closeup of two temperature sensors recording the temperature fluctuations above microbial mats
Don and Greg setting the systems up
Hanna and Greg watching the live data recording
last editation Nicole Simone Keller 2015-09-17
Welcome to our new Post-Doc! 2015-09-10 Nicole Simone Keller
Welcome to the newest GEYSIR team member, Barbara Kleine. Barbara defended her PhD at Stockholm University in the spring, and has now joined our team to study the role of fluids in contact metamorphic settings by tracking them down with the help of the stable isotopes oxygen and hydrogen. We are looking forward to working with Barbara.
No rest for the weary: Shortly after Goldschmidt, GEYSIR goes sampling steam vents in Iceland. 2015-08-26 Nicole Simone Keller
After a very successful conference in Prague, members of the Geysir group barely had time to unpack their bags and repack them again - this time with field gear to go collect steam samples with Shuhei Ono and Jeemin Rhim from the stable isotope geobiology lab at MIT, and Jens Fiebig from the stable isotope lab at the Johann Wolfgang Goethe University in Frankfurt. Here a few impressions from the first day in the field, in the muddy fumarole field of Krysuvik in southwestern Iceland.
Getting ready for Goldschmidt! 2015-08-11 Nicole Simone Keller
Posters being put together and talks being rehearsed - most of GEYSIR´s members are busy getting ready for the Goldschmidt Conference in Prague, which will take place from the 16th to the 21st of August. Andri will start things off for the group on Monday at 15:30, with an invited talk on iron speciation in hydrothermal solutions. On Tuesday afternoon (17:00-19:00), Ragna will show her poster on nitrogen chemistry and speciation in geothermal waters, and Hanna will show her poster on the chemistry of Fe-II and Fe-III in hydrothermal waters. Then on Thursday, Nicole will give a talk about the geochemistry and microbiology of the Vonarskard Geothermal Area, at 15:15. On the same day, from 17:00 to 19:00, three Geysir members will be presenting their posters: Jói will be showing his work on the multiple sulfur isotope systematics of geothermal fluids in Iceland; Ríkey will be showing her results on carbon isotope systematics of icelandic low-temperature geothermal waters; and Jan will have a poster on reaction path controlled by acid supply in hydrothermal alteration in the CO2-H2O-Forsterite system. On Friday, Andri will give his keynote talk at 14:00 on the isotope systematics of geothermal fluids, and the effects of aqueous speciation, boiling and water-rock interaction. Last but not least, at 16:30, Matylda will talk about her work on multicomponent fluid chemistry of the high-enthalpy geothermal system of Krafla in NE Iceland. We are looking forward to meeting YOU at our presentations!
First earth shaking geochemical inhouse meeting in Askja 2015-06-01 Matylda Heřmanská
Geological departement is always a place with chaotic people running around in a ,,walk&talk,, style meeting in a cafeteria once in a while only. So our group decided to organize First geochemical in-house meeting in Askja with a motto – ,,get to know your neighbor!,,. First, Andri, Siggi, Arny, Guðmundur, Eniko and Sæmi presented the equipement and what we are doing - meanwhile the meeting was brightened up by a small earthquake (4.0 M). Afterwards, we moved downstairs to discuss the real science with a glass in one hand and snacks in the other one.
last editation Matylda Heřmanská 2015-06-01
Geysir team grows 2015-05-20 Hanna Kaasalainen
We want to introduce a new Geysir team member, Chiara Marieni, PhD student at the University of Southampton (UK), who recently joined us. Thanks to the Marie Curie training program “CO2 REACT”, she will collaborate with Reykjavik Energy and the University of Iceland for the next 6 months. Chiara will have the opportunity to be trained on the sampling of high temperature geothermal wells and to carry out some experiments on the H2S mineralisation and isotope fractionation. Welcome Chiara!
Spring trip to MIT lab 2015-05-07 Hanna Kaasalainen
Andri Stefánsson and Johann Gunnarsson from the Geysir team visited Shuhei Ono´s lab at MIT in Boston in April. During this successful trip, multiple sulphur isotopes (32S, 33S, 34S, 36S) were analysed with the help of Suhei Ono and William J Olszewski in high temperature well fluid samples from Iceland. Another trip to continue the collaboration on multiple sulfur isotopes is planned in the near future!
Picture of the fluorination and cleaning line at MIT that prepares samples, in the form of solid silver sulfide, for analysis. These solids turn into SF6 gas, that is purified by a GC and sent into an attached MS for multiple sulfur isotope analyses.
Spring is coming - Geysir at the Iceland Geoscience Society Spring meeting 2015-04-14 Hanna Kaasalainen
Spring is still keeping us waiting for itself in Iceland, but a certain sign of it getting closer is the annual Spring meeting of the Iceland Geoscience Society.
The spring meeting was held in mid-March, and as usual, Geysir group members attended the meeting and presented some recent work on microbe-water-rock interaction. This is something that Geysir group has been working on for several years in collaboration with the microbiologists at Matis (Iceland Food and Biotech) and University of Iceland.
Hanna Kaasalainen held a talk titled as "What is for dinner? Geochemical energy from inorganic sources feeds microbial life in geothermal waters", discussing how the geochemists can contribute to the understanding of the geobiology of hot spring environments. Nicole Keller introduced the Vonarskard geothermal system that is expectionally interesting from the geobiological point of view in a talk "The Vonarskarð Geothermal System: an oasis in the desert".
The day was full of very interesting talks and discussions - and spring must really be coming soon!
last editation Hanna Kaasalainen 2015-04-14
The Holuhraun eruption ends but work continues 2015-03-09 Hanna Kaasalainen
After 6 months of activity, the Holuhraun eruption to the north of Vatnajökull has come to an end on Friday the 27th of February 2015. In order to assess the post-eruption degassing activity and to collect samples of any residual degassing, Nicole Keller from the Geysir Team and Evgenia Ilyinskaya from the British Geological Survey flew over the eruption site and collected gases from degassing vents within the main vent, Baugur, and from various sites within the lavafield. At the same time, a field team from the Institute of Earth Sciences of the University of Iceland, as well as from The Icelandic Meteorological Office, were investigating the eruption site to assess the overall situation since the end of the activity.
Picture 1 – This picture was taken on the 4th of march, and shows that there is no more fresh lava being discharged at the surface. Ground temperature is still above 100°C in certain places, with fumaroles and diffuse degassing within and around the crater.
Picture 2 - here two pictures taken from a similar angle, the first one on the left taken on the 11th of november 2014, and the second one taken on the 4th of march 2015.
Picture 3 - This photo, that was taken by pointing the camera straight down below the helicopter, shows two filter-pack assemblies hanging approximately 6m below the helicopter, or approx. 1m above the ground. The filter packs are connected to pumps inside the helicopter. These sampling devices are used to determine volcanic gas and aerosol compositions.
Picture 4 - On the way back to Reykjavik on the 4th of march, a nice aerial view of this group´s namesake: the one and only Geysir!
Another successful conference... 2015-02-26 Jan Přikryl
Matylda Heřmánská won the best poster award at 6th European Geothermal PhD Day conference in Delft Netherlands with topic: Geochemistry of the high enthalpy geothermal system in relation to IDDP-1, Krafla, NE-Iceland. Here Matylda receives congratulations from Dr. David Bruhn, professor for geothermal engineering in Potsdam. Congratulations Matylda !
GEYSIR group members receive grants from RANNIS and Landsvirkjun 2015-02-13 Hanna Kaasalainen
GEYSIR group members have been awarded grants for the year 2015 from the Icelandic Centre for Research (RANNIS) and the Energy Research Fund of the Landsvirkjun Energy Company.
Andri Stefánsson and collaborators received RANNIS project grant for a project titled as "Hydrocarbons in volcanic hydrothermal fluids".
Hanna Kaasalainen and collaborators received a project grant from the Landsvirkjun Energy Research Fund for the last year of a three year project called "Speciaion analysis in geothermal waters and waste waters".
Ragnheiður Ásgeirsdóttir was awarded a M.Sc. student grant from the Landsvirkjun Energy Research Fund. Her project studies nitrogen compounds in geothermal waters.
Just another day in the lab... 2015-02-03 Hanna Kaasalainen
Today is one of the regular days at work for the Geysir team members....regular, but important! Such days are spent collecting and analyzing data that is the basis of all those publications that one needs to write!
Jon Örn in front of his computer, programming the new geochemical modeling software.
Ragnheiður about to finish the determination of nitrogen species concentrations in geothermal water samples.
last editation Hanna Kaasalainen 2015-02-03
Matylda Hermanska wins the AGU poster award 2015-01-20 Hanna Kaasalainen
Matylda Hermanska, Ph.D. student in the Geysir team, won the AGU fall meeting poster award in the Volcanology, Geochemistry and Petrology section http://ospa.agu.org/ospa/2014-fall-meeting-ospa-winners/.
Matylda´s poster was titled as "Geochemistry of Multicomponent Fluid Phases in the Krafla High-Enthalpy Geothermal System, NE Iceland" and co-authored by Andri Stefánsson. It presented results from her PhD project on heat, fluid and mass transfer in volcanic geothermal systems and focus on groundwater-magma interaction at shallow depth in the crust and formation of high-temperature contact metamorphism. The project is part of the Swiss-Icelandic COTHERM network.
View over the Krafla geothermal area
Jóhann Gunnarsson Robin receives his M.Sc. 2015-01-09 Hanna Kaasalainen
Just before well-deserved Christmas vacation, Jóhann Gunnarsson Robin received his M.Sc.degree!
Jói held his M.Sc. lecture on the 19th December, 2014 about his M.Sc. project titled as "Multiple sulfur isotopes systematics of geothermal fluids at Krafla NE Iceland and the source and reactions of sulfur in volcanic geothermal systems", and was examined about his work by Ingvi Gunnarsson, who is a geochemist at the Reykjavík Energy. Through these photos we want to share some of the happy post-lecture moments!
Jói has been part of the Geysir group for over 3 years, during which he has not only worked on his M.Sc. project, but also gained a lot of experience through being involved in other on-going projects and setting up a new GC instrument.
Congratulations, M.Sc. Jói!
last editation Hanna Kaasalainen 2015-01-20
Happy year 2015! 2015-01-07 Hanna Kaasalainen
Geysir wishes you happy new in 2015, and wants to thank everyone for 2014 that was full of exciting science, interesting travel, swetty days in the lab and beautiful (and some stormy) days in the field!
Winter sunrise over Reykjavik, 10:30 a.m.
last editation Hanna Kaasalainen 2015-01-09