Opin vísindi

Fletta eftir efnisorði "Basalt"

Fletta eftir efnisorði "Basalt"

Röðun: Raða: Niðurstöður:

  • Icon
    Alteration progress within the Surtsey hydrothermal system, SW Iceland – A time-lapse petrographic study of cores drilled in 1979 and 2017 
    Prause, Simon; Weisenberger, Tobias Björn; Cappelletti, Piergiulio; Grimaldi, Carla; Rispoli, Concetta; Jónasson, Kristján; Jackson, Marie D.; Gudmundsson, Magnus Tumi (Elsevier BV, 2020-02-15)
    The evolution of hydrothermal alteration in glassy and variably palagonitized tuff, erupted as tephra in 1963 – 1964 on Surtsey, an island built in the offshore extension of Iceland’s southeast rift zone, is documented through a comparative petrographic ...
  • Icon
    CarbFix2: CO2 and H2S mineralization during 3.5 years of continuous injection into basaltic rocks at more than 250 °C 
    Clark, Deirdre; Oelkers, Eric H.; Gunnarsson, Ingvi; Sigfússon, Bergur; Snæbjörnsdóttir, Sandra Ósk; Aradóttir, Edda S.; Gíslason, Sigurður Reynir (Elsevier BV, 2020-06)
    The CarbFix method was upscaled at the Hellisheiði geothermal power plant to inject and mineralize the plant’s CO2 and H2S emissions in June 2014. This approach first captures the gases by their dissolution in water, and the resulting gas-charged water ...
  • Icon
    The chemistry and potential reactivity of the CO2-H2S charged injected waters at the basaltic CarbFix2 site, Iceland 
    Clark, Deirdre; Gunnarsson, Ingvi; Aradóttir, Edda S.; Arnarson, Magnús Þ.; Þorgeirsson, Þorsteinn A.; Sigurðardóttir, Sigrún S.; Sigfússon, Bergur; Snæbjörnsdóttir, Sandra Ósk; Oelkers, Eric H.; Gíslason, Sigurður Reynir (Elsevier BV, 2018-07)
    The CarbFix2 project aims to capture and store the CO2 and H2S emissions from the Hellisheiði geothermal power plant in Iceland by underground mineral storage. The gas mixture is captured directly by its dissolution into water at elevated pressure. ...
  • Icon
    CO2 content beneath northern Iceland and the variability of mantle carbon 
    Hauri, Erik H.; Maclennan, J.; McKenzie, D.; Gronvold, K.; Óskarsson, N.; Shimizu, N. (Geological Society of America, 2017-11-16)
    Primitive basalt melt inclusions from Borgarhraun, northern Iceland, display large correlated variations in CO2 and nonvolatile incompatible trace elements (ITEs) such as Nb, Th, Rb, and Ba. The average CO2/ITE ratios of the Borgarhraun melt inclusion ...
  • Icon
    Design of the subsurface observatory at Surtsey volcano, Iceland 
    Türke, Andreas; Jackson, Marie D.; Bach, Wolfgang; Kahl, Wolf-Achim; Grzybowski, Brian; Marshall, Beau; Gudmundsson, Magnus Tumi; Jørgensen, Steffen Leth (Copernicus GmbH, 2019-06-12)
    Surtsey, the youngest of the islands of Vestmannaeyjar, is an oceanic volcano created by explosive basaltic eruptions during 1963-1967 off the southern coast of Iceland. The subsurface deposits of the volcano were first sampled by a cored borehole in ...
  • Icon
    Experimental observations of CO2-water-basaltic glass interaction in a large column reactor experiment at 50 °C 
    Clark, Deirdre; Galeczka, Iwona M.; Dideriksen, Knud; Voigt, Martin J.; Wolff-Boenisch, Domenik; Gíslason, Sigurður Reynir (Elsevier BV, 2019-10)
    Mineralization of water dissolved carbon dioxide injected into basaltic rocks occurs within two years in field-scale settings. Here we present the results from a CO2-water-basaltic glass laboratory experiment conducted at 50 °C and 80 bar pressure in ...
  • Icon
    Formation of segregation structures in Hafnarhraun pāhoehoe lobe, SW Iceland: a window into crystal–melt separation in basaltic magma 
    Nikkola, Paavo; Thordarson, Thorvaldur; Rämö, O. Tapani; Heikkilä, Pasi (Springer Science and Business Media LLC, 2019-11-25)
    To gain insights into crystal–melt separation processes during basalt differentiation, we have studied an 8-m-thick pāhoehoe lava lobe from the Hafnarhraun lava flow field in SW Iceland. The lobe has abundant melt segregations, porous cylindrical and ...
  • Icon
    High reactivity of deep biota under anthropogenic CO2 injection into basalt 
    Trias, Rosalia; Ménez, Bénédicte; le Campion, Paul; Zivanovic, Yvan; Lecourt, Léna; Lecoeuvre, Aurélien; Schmitt-Kopplin, Philippe; Uhl, Jenny; Gíslason, Sigurður Reynir; Alfreðsson, Helgi A.; Mesfin, Kiflom G.; Snæbjörnsdóttir, Sandra Ósk; Aradóttir, Edda S.; Gunnarsson, Ingvi; Matter, Juerg M.; Stute, Martin; Oelkers, Eric H.; Gérard, Emmanuelle (Springer Nature, 2017-10-20)
    Basalts are recognized as one of the major habitats on Earth, harboring diverse and active microbial populations. Inconsistently, this living component is rarely considered in engineering operations carried out in these environments. This includes ...
  • Icon
    Plastic bed beneath Hofsjökull Ice Cap, central Iceland, and the sensitivity of ice flow to surface meltwater flux 
    Minchew, Brent; Simons, Mark; Björnsson, Helgi; Pálsson, Finnur; Morlighem, Mathieu; Seroussi, Helene; Larour, Eric; Hensley, Scott (Cambridge University Press (CUP), 2016-02)
    The mechanical properties of glacier beds play a fundamental role in regulating the sensitivity of glaciers to environmental forcing across a wide range of timescales. Glaciers are commonly underlain by deformable till whose mechanical properties and ...
  • Icon
    The Saksunarvatn Ash and the G10ka series tephra. Review and current state of knowledge 
    Óladóttir, Bergrún Arna; Thordarson, Thorvaldur; Geirsdóttir, Áslaug; Jóhannsdóttir, Guðrún Eva; Mangerud, Jan (Elsevier BV, 2020-03)
    The Saksunarvatn Ash, first found in the Faroe Islands, is a tephra produced by the Grímsvötn volcanic system in Iceland. Since its discovery in the Faroe Islands, dark tephra with a similar stratigraphic position has been described at numerous locations ...
  • Icon
    The Surtsey volcano geothermal system: An analogue for seawater-oceanic crust interaction with implications for the elemental budget of the oceanic crust 
    Kleine, Barbara Irene; Stefansson, Andri; Kjartansdóttir, Ríkey; Prause, Simon; Weisenberger, Tobias B.; Reynolds, Hannah Iona; Sveinbjörnsdóttir, Árný; Jackson, Marie D.; Gudmundsson, Magnus Tumi (Elsevier BV, 2020-09)
    Surtsey is a young volcanic island in the offshore extension of Iceland's southeast rift zone that grew from the seafloor during explosive and effusive eruptions in 1963–1967. In 1979, a cored borehole (SE-1) was drilled to 181 m depth and in 2017 three ...
  • Icon
    SUSTAIN drilling at Surtsey volcano, Iceland, tracks hydrothermal and microbiological interactions in basalt 50 years after eruption 
    Jackson, Marie D.; Gudmundsson, Magnus Tumi; Weisenberger, Tobias B.; Rhodes, J. Michael; Stefansson, Andri; Kleine, Barbara Irene; Lippert, Peter C.; Marquardt, Joshua M.; Reynolds, Hannah Iona; Kück, Jochem; Marteinsson, Viggó; Vannier, Pauline; Bach, Wolfgang; Barich, Amel; Bergsten, Pauline; Bryce, Julia G.; Cappelletti, Piergiulio; Couper, Samantha; Fahnestock, M. Florencia; Gorny, Carolyn F.; Grimaldi, Carla; Groh, Marco; Guðmundsson, Ágúst; Gunnlaugsson, Ágúst T.; Hamlin, Cédric; Högnadóttir, Thórdís; Jónasson, Kristján; Jónsson, Sigurður S.; Jørgensen, Steffen L.; Klonowski, Alexandra M.; Marshall, Beau; Massey, Erica; McPhie, Jocelyn; Moore, James G.; Olafsson, Einar Sindri; Onstad, Solveig L.; Perez, Velveth; Prause, Simon; Snorrason, Snorri P.; Türke, Andreas; White, James D. L.; Zimanowski, Bernd (Copernicus GmbH, 2019-06-12)
    The 2017 Surtsey Underwater volcanic System for Thermophiles, Alteration processes and INnovative concretes (SUSTAIN) drilling project at Surtsey volcano, sponsored in part by the International Continental Scientific Drilling Program (ICDP), provides ...
  • Icon
    Temporal evolution of primordial tungsten-182 and 3He/4He signatures in the Iceland mantle plume 
    Mundl-Petermeier, A.; Walker, R.J.; Jackson, M.G.; Blichert-Toft, J.; Kurz, M.D.; Halldórsson, Sæmundur Ari (Elsevier BV, 2019-10-20)
    Studies of short-lived radiogenic isotope systems and noble gas isotopic compositions of plume-derived rocks suggest the existence of primordial domains in Earth's present-day mantle. Tungsten-182 anomalies together with high 3He/4He in Phanerozoic ...
  • Icon
    Using Mg Isotopes to Estimate Natural Calcite Compositions and Precipitation Rates During the 2010 Eyjafjallajökull Eruption 
    Pogge von Strandmann, Philip A. E.; Olsson, Jonas; Luu, Tu-Han; Gíslason, Sigurður Reynir; Burton, Kevin W. (Frontiers Media SA, 2019-02-01)
    Chemical weathering of silicate rocks is a key control on the long-term climate, via drawdown of atmospheric CO 2 . Magnesium isotopes are increasingly being used to trace weathering, but are often complicated by several coincident fractionating ...
  • Icon
    Volatile and light lithophile elements in high-anorthite plagioclase-hosted melt inclusions from Iceland 
    Neave, David A.; Hartley, Margaret E.; Maclennan, John; Edmonds, Marie; Thordarson, Thorvaldur (Elsevier BV, 2017-05)
    Melt inclusions formed during the early stages of magmatic evolution trap primitive melt compositions and enable the volatile contents of primary melts and the mantle to be estimated. However, the syn-and post-entrapment behaviour of volatiles in ...