Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Stefán Arnórsson"'
Iceland is young (the oldest rocks ca 16M years) and characterized by active and widespread volcanism, defined along a Neovolcanic rift zone. More than 90% of the Icelandic bedrock is of basaltic origin. The permeability of the Tertiary lava pile is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcab7de231c3f2392a89f23135623840
https://doi.org/10.5194/egusphere-egu23-5977
https://doi.org/10.5194/egusphere-egu23-5977
Autor:
Árný E. Sveinbjörnsdóttir, Rósa Ólafsdóttir, Andri Stefánsson, Stefán Arnórsson, Jan Heinemeier, Eydis Salome Eiriksdottir
Publikováno v:
Sveinbjörnsdóttir, Á E, Stefánsson, A, Heinemeier, J, Arnórsson, S, Eiríksdóttir, E S & Ólafsdóttir, R 2020, ' Assessing the sources of inorganic carbon in surface-, soil-and non-thermal groundwater in Iceland by δ 13 C and 14 C ', Geochimica et Cosmochimica Acta, vol. 279, pp. 165-188 . https://doi.org/10.1016/j.gca.2020.03.021
Chemical weathering and associated atmospheric CO2 uptake by surface water and transport of dissolved inorganic carbon (DIC) by rivers to the ocean and subsequent carbonate deposition has been suggested to play a major role in long-time climate chang
Publikováno v:
Chemical Geology. 444:158-179
CO2-rich waters in Iceland from volcanic systems of the Mid-Atlantic Ridge and off-rift volcanic areas of Iceland provide insights into the interactions between CO2-rich fluids and basaltic crust. These waters, from the Snaefellsnes Peninsula, within
Autor:
Jan Heinemaier, Hrefna Kristmannsdóttir, Stefán Arnórsson, Árný E. Sveinbjörnsdóttir, Andri Stefánsson
Publikováno v:
Stefánsson, A, Arnórsson, S, Sveinbjörnsdóttir, Á E, Heinemeier, J & Kristmannsdóttir, H 2019, ' Isotope (δD, δ 18 O, 3 H, δ 13 C, 14 C) and chemical (B, Cl) Constrains on water origin, mixing, water-rock interaction and age of low-temperature geothermal water ', Applied Geochemistry, vol. 108, no. September, 104380 . https://doi.org/10.1016/j.apgeochem.2019.104380
The isotope (δD, δ18O, 3H, δ13C, 14C) and chemical (B, Cl) compositions of cold (streams, rivers, soil- and groundwater) and low-temperature geothermal water from northern Iceland were investigated in order to delineate the origin, mixing, water-r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8537760d329b7e0b6b9d24b365d7d878
https://pure.au.dk/portal/da/publications/isotope-d-18o-3h-13c-14c-and-chemical-b-cl-constrains-on-water-origin-mixing-waterrock-interaction-and-age-of-lowtemperature-geothermal-water(1249f96b-e2b8-4748-91a6-8ecfd336bdd0).html
https://pure.au.dk/portal/da/publications/isotope-d-18o-3h-13c-14c-and-chemical-b-cl-constrains-on-water-origin-mixing-waterrock-interaction-and-age-of-lowtemperature-geothermal-water(1249f96b-e2b8-4748-91a6-8ecfd336bdd0).html
Publikováno v:
Applied Geochemistry. 62:200-206
Natural waters in Iceland were collected and analyzed for chromium concentration and speciation (CrIII, CrVI and CrTOT). The water sampled included non-thermal surface and spring water, surface geothermal water, and single and two-phase geothermal we
Publikováno v:
Geothermics. 58:75-86
The surface geothermal water chemistry and alteration mineralogy associated with rhyolitic rocks at Torfajokull central volcano, Iceland was studied. The geothermal waters ranged in pH and temperature from 2.33 to 9.77 and 6–98 °C, respectively, a
Publikováno v:
Applied Geochemistry. 62:207-223
Trace element geochemistry was studied in geothermal fluids in Iceland. The major and trace element compositions of hot springs, sub-boiling, and two-phase (liquid and vapor) wells from 10 geothermal areas were used to reconstruct the fluid compositi
Publikováno v:
Geofluids. 16:175-197
The Krafla geothermal system is located in Iceland's northeastern neovolcanic zone, within the Krafla central volcanic complex. Geothermal fluids are superheated steam closest to the magma heat source, two-phase at higher depths, and sub-boiling at t
Autor:
Shuhei Ono, Jan Heinemeier, Stefán Arnórsson, David R. Hilton, Árný E. Sveinbjörnsdóttir, Jens Fiebig, Jaime D. Barnes, Peter Torssander, Sæmundur A. Halldórsson, Andri Stefánsson
Publikováno v:
Prof. Ono via Michael Noga
Stefansson, A, Hilton, D R, Sveinbjornsdottir, A E, Torssander, P, Heinemeier, J, Barnes, J D, Ono, S, Halldorsson, S A, Fiebig, J & Arnorsson, S 2017, ' Isotope systematics of Icelandic thermal fluids ', Journal of Volcanology and Geothermal Research, vol. 337, pp. 146-164 . https://doi.org/10.1016/j.jvolgeores.2017.02.006
Stefansson, A, Hilton, D R, Sveinbjornsdottir, A E, Torssander, P, Heinemeier, J, Barnes, J D, Ono, S, Halldorsson, S A, Fiebig, J & Arnorsson, S 2017, ' Isotope systematics of Icelandic thermal fluids ', Journal of Volcanology and Geothermal Research, vol. 337, pp. 146-164 . https://doi.org/10.1016/j.jvolgeores.2017.02.006
Thermal fluids in Iceland range in temperature from < 10 °C to > 440 °C and are dominated by water (> 97 mol%) with a chloride concentration from < 10 ppm to > 20,000 ppm. The isotope systematics of the fluids reveal many important features of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0c098a78db3f18e64adcea71f43ea1b8
https://hdl.handle.net/1721.1/123818
https://hdl.handle.net/1721.1/123818
Publikováno v:
Geothermics. 49:99-110
The Reykjanes and Krafla geothermal systems, located within the active rift zone of Iceland, are both potential venues for exploitation of deep supercritical fluids by the Iceland Deep Drilling Project (IDDP). An essential aspect of properly characte