2026 Andri Stefánsson: Earth Science Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Earth Science	46	4184	3842	10	10	178	8655

Research.com Recognitions

2026 - Research.com Earth Science in Iceland Leader Award
2025 - Research.com Earth Science in Iceland Leader Award

Overview

Andri Stefánsson is affiliated with the University of Iceland in Iceland and has contributed extensively to the field of Earth and Planetary Sciences, with a total of 96 publications. Their research spans several subfields including Geophysics, Geochemistry and Petrology, Mechanics of Materials, Environmental Chemistry, and Atmospheric Science.

The scientist's work covers a broad range of main topics, emphasizing Geological and Geochemical Analysis, Hydrocarbon Exploration and Reservoir Analysis, Earthquake and Tectonic Studies, Methane Hydrates and Related Phenomena, Groundwater and Isotope Geochemistry, Geology and Paleoclimatology Research, and Geochemistry and Geologic Mapping.

Stefánsson has published in multiple scientific venues, notably including:

Geochimica et Cosmochimica Acta
Journal of Volcanology and Geothermal Research
Earth and Planetary Science Letters
Chemical Geology
Geothermics

Several recent papers exemplify their research focus:

Rapid shifting of a deep magmatic source at Fagradalsfjall volcano, Iceland (2022, Nature)
Hydrothermal 15N15N abundances constrain the origins of mantle nitrogen (2020, Nature)
Geochemistry of thermal fluids and the genesis of granite-hosted Huangshadong geothermal system, Southeast China (2023, Geothermics)
Relative Abundance of Thiolated Species of As, Mo, W, and Sb in Hot Springs of Yellowstone National Park and Iceland (2020, Environmental Science & Technology)
A pre-injection assessment of CO2 and H2S mineralization reactions at the Nesjavellir (Iceland) geothermal storage site (2022, International journal of greenhouse gas control)

Frequent coauthors with whom Stefánsson has collaborated include:

Sæmundur A. Halldórsson
Barbara I. Kleine
Jóhann Gunnarsson-Robin
Eemu Ranta
Samuel Scott

Best Publications

Iron(III) Hydrolysis and Solubility at 25 °C

Andri Stefánsson

529
Citations
Mineral sequestration of carbon dioxide in basalt: A pre-injection overview of the CarbFix project

Sigurdur Reynir Gislason;Domenik Wolff-Boenisch;Andri Stefansson;Eric H. Oelkers

489
Citations
Magmatic vapor contraction and the transport of gold from the porphyry environment to epithermal ore deposits

Christoph A. Heinrich;Thomas Driesner;Andri Stefánsson;Terry M. Seward

424
Citations
Gold(I) complexing in aqueous sulphide solutions to 500°C at 500 bar

A. Stefánsson;T.M. Seward

405
Citations
Fluid-Fluid Interactions in Geothermal Systems

Stefán Arnórsson;Andri Stefánsson;Jón Örn Bjarnason

258
Citations
CHEMICAL WEATHERING OF BASALTS, SOUTHWEST ICELAND: EFFECT OF ROCK CRYSTALLINITY AND SECONDARY MINERALS ON CHEMICAL FLUXES TO THE OCEAN

Andri Stefánsson;Sigurdur R. Gíslason

252
Citations
Sampling and analysis of geothermal fluids

S. Arnórsson;J. Ö. Bjarnason;N. Giroud;I. Gunnarsson

202
Citations
Dissolution of primary minerals of basalt in natural waters

Andri Stefánsson

196
Citations
The CarbFix Pilot Project–Storing carbon dioxide in basalt

Juerg M. Matter;W.S. Broecker;S.R. Gislason;E. Gunnlaugsson

195
Citations
Permanent carbon dioxide storage into basalt: the CarbFix Pilot Project, Iceland

Juerg M. Matter;W.S. Broecker;M. Stute;S.R. Gislason

180
Citations
CO2-water–basalt interaction. Low temperature experiments and implications for CO2 sequestration into basalts

Alexander P. Gysi;Andri Stefánsson

176
Citations
New methods for the direct determination of dissolved inorganic, organic and total carbon in natural waters by Reagent-Free Ion Chromatography and inductively coupled plasma atomic emission spectrometry.

Andri Stefánsson;Ingvi Gunnarsson;Niels Giroud

176
Citations
The chemistry of trace elements in surface geothermal waters and steam, Iceland

Hanna Kaasalainen;Andri Stefánsson

175
Citations
CO2–water–basalt interaction. Numerical simulation of low temperature CO2 sequestration into basalts

Alexander P. Gysi;Andri Stefánsson

171
Citations
Dissolution of primary minerals in natural waters

Andri Stefánsson;Sigurdur R Gı́slason;Stefán Arnórsson

151
Citations
Assessment of feldspar solubility constants in water in the range of 0 degrees to 350 degrees C at vapor saturation pressures

Stefan Arnorsson;Andri Stefansson

148
Citations
Experimental determination of the stability and stoichiometry of sulphide complexes of silver(I) in hydrothermal solutions to 400°C

A. Stefánsson;T.M. Seward

143
Citations
Stability of chloridogold(I) complexes in aqueous solutions from 300 to 600°C and from 500 to 1800 bar

A. Stefánsson;T.M. Seward

134
Citations
Environmental pressure from the 2014–15 eruption of Bárðarbunga volcano, Iceland

S.R. Gislason;G. Stefánsdóttir;M.A. Pfeffer;S. Barsotti

129
Citations
Mineralogical aspects of CO2 sequestration during hydrothermal basalt alteration — An experimental study at 75 to 250°C and elevated pCO2

Alexander P. Gysi;Andri Stefánsson

129
Citations
Gas pressures and redox reactions in geothermal fluids in Iceland

Andri Stefánsson;Stefán Arnórsson

119
Citations
Feldspar saturation state in natural waters

Andri Stefánsson;Stefán Arnórsson

119
Citations

Frequent Co-Authors

Stefán Arnórsson University of Iceland

S. A. Halldorsson University of Iceland

Sigurdur R. Gislason University of Iceland

Eric H. Oelkers University of Iceland

Shuhei Ono MIT

Jaime D. Barnes The University of Texas at Austin

Terry M. Seward Victoria University of Wellington

Martin Stute Lamont-Doherty Earth Observatory

Wallace S. Broecker Lamont-Doherty Earth Observatory

Pascale Bénézeth Federal University of Toulouse Midi-Pyrénées

External Links

Personal website of Andri Stefánsson

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