Helgi Arnar

Publications / Ritskrá

PEER-REVIEWED PUBLICATIONS - GREINAR Í ALÞJÓÐLEGUM VÍSINDARITUM

Philip A. E. Pogge von Strandmann, Kevin W. Burton, Sandra O. Snæbjörnsdóttir, Bergur Sigfússon, Edda S. Aradóttir, Ingvi Gunnarsson, Helgi A. Alfredsson, Kiflom G. Mesfin, Eric H. Oelkers & Sigurður R. Gislason, 2019. Rapid CO2 mineralisation into calcite at the CarbFix storage site quantified using calcium isotopes. Nature Communications 10, Article number: 1983.

Rosalia Trias, Bénédicte Ménez, Paul le Campion, Yvan Zivanovic, Léna Lecourt, Aurélien Lecoeuvre, Philippe Schmitt-Kopplin, Jenny Uhl, Sigurður R. Gislason, Helgi A. Alfreðsson, Kiflom G. Mesfin, Sandra Ó. Snæbjörnsdóttir, Edda S. Aradóttir, Ingvi Gunnarsson, Juerg M. Matter, Martin Stute, Eric H. Oelkers & Emmanuelle Gérard, 2017. High reactivity of deep biota under anthropogenic CO2 injection into basalt. Nature Communications 8, Article Number 1063 (2017)

J. M. Matter, M. Stute, S. Ó. Snæbjörnsdottir, E. H. Oetkers, S. R. Gislason, E. S. Aradottir, B. Sigfusson, I. Gunnarsson, H. Sigurdardottir, E. Gunnlaugsson, G. Axelsson, H. A. Alfredsson, D. Wolff-Boenisch, K. Mesfin, D. Fernandez de la Reguera Taya, J. Hall, K. Dideriksen, W. S. Broecker, 2016. Rapid carbon mineralization for permanent disposal of anthropogenic carbon dioxide emissions. Science 352 (6291): 1312-1314.

H. A. Alfredsson, K. G. Mesfin, and D. Wolff-Boenisch, 2015. The syringe sampler: An inexpensive alternative borehole sampling technique for CO2-rich fluids during mineral carbon storage. Greenhouse Gases: Science and Technology 5, 1-11.

Sigfusson, B, Gislason, S. R., Matter, J. M., Stute, M., Gunnlaugsson, E., Gunnarsson, I., Aradottir, E. S., Sigurdardottir, H., Mesfin, K., Alfredsson, H. A., Wolff-Boenisch, D., Arnarsson, M., Oelkers, E. H., 2015. Solving the carbon-dioxide buoyancy challenge: The design and field testing of a dissolved CO2 injection system. International Journal of Greenhouse Gas Control 37, 213-219.

H. A. Alfredsson, E. H. Oelkers, B. S. Hardarsson, H. Franzson and S. R. Gislason, 2013. The geology and water chemistry of the Hellisheidi, SW-Iceland carbon storage site. International Journal of Greenhouse Gas Control 12: 399-418.

L.S. Shirokova, P. Bénézeth, O.S. Pokrovsky, E. Gerard, B. Ménez, H. Alfredsson, 2012. Effect of the heterotrophic bacterium Pseudomonas reactans on olivine dissolution kinetics and implications for CO2 storage in basalts. Geochimica et Cosmochimica Acta 80(1): 30-50.

L.S. Shirokova, O.S. Pokrovsky, P. Bénézeth, E. Gerard, B. Ménez, H. Alfredsson, 2012. Experimental study of the effect of heterotrophic bacterium (Pseudomonas reactans) on olivine dissolution kinetics in the context of CO2 storage in basalts. Geochimica et Cosmochimica Acta 80.

S.R. Gislason, T. Hassenkam, S. Nedel, N. Bovet, E. S. Eiriksdottir, H. A. Alfredsson, C. P. Hem, Z. I. Balogh, K. Dideriksen, N. Oskarsson, B. Sigfusson, G. Larsen, and S. L. S. Stipp, 2011. Characterization of Eyjafjallajökull volcanic ash particles and a protocol for rapid risk assessment. Proceedings of the National Academy of Science USA 108, 7307-7312.

S. R. Gislason and H. A. Alfredsson, 2010. Sampling the Volcanic Ash from the Eyjafjallajökull Volcano, Iceland – A Personal Account. Elements, August 2010; 6: 269 - 270.

S. R. Gislason, H. A. Alfredsson, E. S. Eiríksdóttir, T. Hassenkam, S. L. S. Stipp, 2010. Volcanic ash from the 2010 Eyjafjallajökull eruption. Applied Geochemistry 26, S188-S190.

CONFERENCE PAPERS / STUTTGREINAR

Edda S.P. Aradóttir, Ingvi Gunnarsson, Bergur Sigfússon, Sigurdur R. Gíslason, Eric H. Oelkers, Martin Stute, Juerg M. Matter, Sandra O. Snaebjörnsdottir, Kiflom G. Mesfin, Helgi A. Alfredsson, Jennifer Hall, Magnus Th. Arnarsson, Knud Dideriksen, Bjarni M. Júlíusson, Wallace S. Broecker and Einar Gunnlaugsson, 2015. Towards Cleaner Geothermal Energy: Subsurface Sequestration of Sour Gas Emissions from Geothermal Power Plants. Proceedings World Geothermal Congress 2015, Melbourne, Australia, 19-25 April 2015.

Sigurdur R. Gislason, W.S. Broecker, E. Gunnlaugsson, S. Snæbjörnsdóttir, K.G. Mesfin, H.A. Alfredsson, E.S. Aradottir, B. Sigfusson, I. Gunnarsson, M. Stute, J.M. Matter, M.Th. Arnarson, I.M. Galeczka, S. Gudbrandsson, G. Stockman, D. Wolff- Boenisch, A. Stefansson, E. Ragnheidardottir, T. Flaathen, A.P. Gysi, J. Olssen, K. Didriksen, S. Stipp, B. Menez, E.H. Oelkers, Rapid solubility and mineral storage of CO2 in basalt, Energy Procedia, Volume 63, 2014, Pages 4561-4574.

Matter J M, Stute M, Hall J, Mesfin K, Snæbjörnsdóttir, Gislason S R, Oelkers E H, Sigfusson B, Gunnarsson I, Aradottir E S, Alfredsson H A, E. Gunnlaugsson E.H.and Broecker WS. Monitoring permanent CO2 storage by in situ mineral carbonation using a reactive tracer technique. Energy Procedia Volume 63, 2014.

Matter, J.M., Broecker, W.S., Gíslason, S.R., Gunnlaugsson, E., Oelkers, E.H., Stute, M. Sigurdardóttir, H., Stefansson, A., Alfreðsson H.A., Aradóttir, E.S., Axelsson, G., Sigfússon, B. and Wolff-Boenisch, D.: The CarbFix Pilot Project – Storing carbon dioxide in basalt, Energy Procedia 4, (2011), 5579–5585.

H. A. Alfredsson, E. H. Oelkers and S. R. Gislason, 2012. The predicted fate of CO2 injected into basaltic rock. New Zealand Geothermal Workshop 2012 Proceedings, November 2012, Auckland, New Zealand.

H. A. Alfredsson, D. W. Boenisch and A. Stefánsson, 2011. CO2 sequestration in basaltic rocks in Iceland: Development of a piston-type downhole sampler for CO2 rich fluids and tracers. Energy Procedia, 2011, Vol. 4, pp. 3510-3517.

J. M. Matter, W. S. Broecker, S.R. Gislason, E. Gunnlaugsson, E. H. Oelkers, M. Stute, H. Sigurdardottir, A. Stefansson, H. Alfredsson, E. S. Aradottir, G. Axelsson, B. Sigfusson, D. Wolff-Boenisch, 2011. The CarbFix pilot project - Storing carbon dioxide in basalt. Energy Procedia, Vol. 4, pp. 5579-5585.

H. A. Alfredsson, B. S. Hardarson, H. Franzson and S. R. Gislason, 2008. CO2 sequesration in basaltic rock at the Hellisheidi site in SW Iceland: Stratigraphy and chemical composition of the rocks at the injection site. Mineralogical Magazine, February 2008, Vol. 72(1), pp. 1-5.

REPORTS / SKÝRSLUR

Helgi A. Alfredsson, 2010. CarbFix – Monitoring descriptions. CarbFix report, Reykjavik Energy 2010.

Helgi A. Alfreðsson, Björn S. Harðarson og Hjalti Franzson, 2007. Hola HK-31 í Þrengslum, Hellisheiði: Jarðlög, ummyndun og lekt. ÍSOR-2007/030. (in Icelandic)

PHD THESIS / DOKTORSRITGERÐ

Helgi A. Alfreðsson, 2015. Water-rock interaction during mineral carbonation and volcanic ash weathering. PhD dissertation, Faculty of Earth Science, University of Iceland, 174 pp.

BSC THESIS / BAKKALÁRRITGERÐ

Helgi A. Alfreðsson, 2007. Borhola HK-31 á Hellisheiði: Rannsóknir á bergfræði og ummyndun fyrir niðurdælingu CO2 í basalt. B.Sc. thesis in geology at Department of Natural Science, University of Iceland. (in Icelandic).

ABSTRACT AND TALKS / ÁGRIP OG ERINDI

H. A. Alfredsson, J. K. Björke and G. Ó. Brynleifsdóttir, 2019. Living on a Volcano: A case study of a geoscience tour for the general public. Goldschmidt Abstract.
Helgi A. Alfreðsson og Júlía Katrín Björke, 2019. Eldfjallagarðurinn við Mývatn (Mývatn Volcano Park), Presentation at National Power Comp. (Landsvirkjun), Reykjavík.
H. A. Alfredsson and Sigurdur R. Gislason. Eruption mechanism and the environmental impacts of volcanic ash: Experimental study of the Eyjafjallajökull 2010 eruption. Abstract and Poster at the 2014 NordVulc Summer School, Stórutjarnir, Iceland
H. A. Alfredson, K. G. Mesfin, S. R. Gislason, D. Wolff-Boenisch, 2014. The syringe bailer: A borehole sampling technique for CO2-rich fluids during mineral carbon storage. Abstract and poster at the International Carbon Conference, Reykjavík, Iceland, August 2014.
H. A. Alfredsson, Eric H. Oelkers, and Sigurdur R. Gislason, 2012. The predicted fate of CO2 injected into basaltic rock. Abstract and talk at the New Zealand Geothermal Workshop, Auckland, New Zealand, November 2012.
H. A. Alfredsson, Sophie Opfergelt, Kevin W. Burton, Fatima Mokadem, Eydis S. Eiriksdottir, Sigurdur R. Gislason, 2012. Volcanic impact on the silicon isotope composition of natural waters during the 2010 Eyjafjallajökull eruption, S-Iceland. Mineralogical Magazine, 76(6) 1414. Abstract and talk at the Goldschmidt conference, Montréal, Canada, June 2012.
H. A. Alfredsson, S. R. Gislason, S. L. S. Stipp, and K. W. Burton, 2011. Release rate of pollutants, nutrients and protons from pristine Eyjafjallajökull ash. Mineralogical Magazine, Vol. 75 (3), p. 423. Abstract and talk at the Goldschmidt conference in Prague, August 2011.
S. Gudbrandsson, H. A. Alfredsson, and S. R. Gislason, 2011. CO2 Mineralization into Basaltic Formations at the Hellisheiði Geothermal Field – The CarbFix Project. Abstract at the 2nd European Geothermal PhD Day, 2nd of March 2011, Reykjavík, Iceland.
H. A. Alfredsson, D. W. Boenisch and A. Stefánsson, 2010. CO2 sequestration in basaltic rocks in Iceland: Development of a piston-type downhole sampler for CO2 rich fluids and tracers. Abstract and poster at the R-VON symposium 2010, University of Iceland.
H. A. Alfredsson, D. W. Boenisch and A. Stefánsson, 2010. CO2 sequestration in basaltic rocks in Iceland: Development of a piston-type downhole sampler for CO2-rich fluids and tracers. Abstract and poster at The Greenhouse Gas Control Technologies conference, Amsterdam, Netherlands, August 2010.
H. A. Alfreðsson, S. R. Gíslason, D. W. Boenisch and A. Stefánsson, 2010. CO2 sequestration in basaltic rocks: Pre-injection studies of the injection field and Development of a piston-type downhole sampler for CO2 rich fluids and tracers. Poster at the MIR and Min-Gro meeting in Cophenhagen, May 2010.
Alfredsson, H. A. and Gislason S. R., 2010. CarbFix – CO2 sequestration in basaltic rocks: Chemistry of the rocks and ground waters at the injection site, Hellisheidi, SW-Iceland. Abstract and talk at the European Geothermal PhD Day at GFZ – Potsdam, Germany, 12th February 2010.
Alfredsson, H.A. Gislason, S.R., 2009. CarbFix - CO2 sequestration in basaltic rock: Chemistry of the rocks and waters at the injection site, Hellisheidi, SW-Iceland. Poster at the International Conference on CO2 Sequestration Processes, Reykjavík, September 2009.
Alfredsson, H.A. Gislason, S.R., 2009. CarbFix - CO2 sequestration in basaltic rock: Chemistry of the rocks and waters at the injection site, Hellisheidi, SW-Iceland. Geochimica et Cosmochimica Acta, 73(13) Supplement 26. Abstract and talk at the Goldschmidt Conference in Davos, Switzerland, June 2009.
H. A. Alfredsson and S. R. Gíslason, 2009. CarbFix – Binding kolefnis í basalti – Efnafræði bergs og vatns á niðurrennslissvæðinu í Þrengslum, Hellisheiði. Abstract and talk at the Spring conference of the Geological Society of Iceland, in April 2009, Reykjavik, Iceland.
H. A. Alfredsson and S. R. Gíslason, 2008. CarbFix – CO2 sequestration in basaltic rock: The chemistry of the ground waters at the injection site. Talk at the Folda Seminar Series, University of Iceland, October 23rd 2008.
H. A. Alfredsson and S. R. Gíslason, 2008. CarbFix – CO2 sequestration in basaltic rock: The chemistry of the ground waters at the injection site. Talk at the CarbFix SSC/MT meeting, October 17th, 2008 at Reykjavik Energy.
H. A. Alfredsson and S. Gudbrandsson, 2008. CarbFix – introduction. European Researcher’s night in Iceland, September, 2008.
H. A. Alfredsson, B. S. Hardarson, H. Franzson, S. R. Gislason 2008. CO2 sequesration in basaltic rock at the Hellisheidi site in SW Iceland: Stratigraphy and chemical composition of the rocks at the injection site. Extended abstract and poster at the GES-8 conference, London, August 2008.
H. A. Alfredsson, S. R. Gislason, B. S. Hardarson, 2008. CO2 sequestration in basaltic rock at the Hellisheidi site in SW Iceland: Chemical composition of the rocks at the injection site. Abstract and talk at the CarbFix SSC/MT meeting, 12-14 June 2008 at Reykjavik Energy, Iceland.
H. A. Alfredsson, 2008. Permanent CO2 fixation in basaltic rock: Characterization of the rocks at the injection site. Talk at the MIR-EST / MIN-GRO meeting in Carcassonne, May, 2008.
H. A. Alfredsson, S. R. Gislason, B. S. Hardarson and H. Franzson, 2008. Permanent CO2 fixation in basaltic rock: Characterization of the rocks at the injection site. Abstract and poster at the Natural Science Symposium 2008 at the University of Iceland.
Helgi Arnar Alfreðsson, Björn S. Harðarson og Hjalti Franzson, 2007. Borehole HK-31 in the injection area of Hellisheiði Powerplant. Geology, alteration and permeability. Talk at the CarbFix SSC meeting in Sept. 2007.
H. A. Alfredsson, 2007. Introduction to PhD research topics. Talk at the CarbFix SSC meeting in Sept. 2007.

(09.2020 - HAA)