Barbara Kleine

Postdoc

  • Institute of Earth Sciences, University of Iceland, 101 Reykjavík
  • Office: Askja 261
  • Office phone number:
  • Cell phone number:
  • e-mail: barbarak@hi.is

Research Interest

During my PhD studies at Stockholm University I was particularly focusing on metamorphic H2O-CO2-bearing fluids and how they affect high pressure, low temperature metamorphic rocks such as blueschists and eclogites in Southern Greece. Another part of my PhD involved the study of fluid flow mechanisms and controls in greenschist facies metamorphic rocks on the Scottish island Islay.

After I defended my thesis in spring 2015, I decided that it is time to find out more about how fluids behave in surface-near geological settings. And which place would have been better than Iceland with its numerous geothermal systems? Here, I am aiming to  unravel the role of fluids in contact metamorphic settings and mid-ocean ridge systems by combining stable isotopes systematics (O,H, S, Si, Fe) in a set of hydrothermal fluids, rocks and minerals with geochemical isotope modelling. Implications of this research will further extend our knowledge on elemental cycling in mid-oean ridge systems.

 

Publications

peer-reviewed journals/books:

Kleine, B.I., Stéfansson, A., Halldórsson, S.A., Whitehouse, M.J., Jónasson, K. (2018) Silicon and oxygen isotopes unravel quartz formation processes in the Icelandic crust. Geochemical Perspectives Letters 7, 5-11.

Kleine, B.I., Stefánsson, A. (2017) Hypogene. In: Encyclopedia of Geochemistry, Wiliam M. White (ed.), Springer International Publishing, DOI: 10.1007/978-3-319-39193-9_67-1.

Stefánsson, A., Kleine, B.I. (2017) Hydrothermal alteration. In: Encyclopedia of Geochemistry, Wiliam M. White (ed.), Springer International Publishing, DOI: 10.1007/978-3-319-39193-9_65-1.

Kleine, B.I., Pitcairn, I., Skelton, A. (2016). Pre-metamorphic controls on the propagation of fluid-driven reaction fronts at greenschist facies metamorphic conditions. Lithos, 248-251, 22-39.

Kleine, B.I., Zhao, Z., Skelton, A. (2016). Fast fluid fluxes along brittle fractures in greenschist facies metamorphosed mica-schists on Syros, Greece. American Journal of Science, 316, 169-201.

Skelton, A., Lewerentz, A., Kleine, B.I., Webster, D., Pitcairn, I. (2015). Structural channeling of metamorphic fluids on Islay, Scotland: implications for paleoclimatic reconstruction. Journal of Petrology, 56, 2145-2172.

Kleine, B.I., Pitcairn, I., Skelton A. (2015). The mechanism of fluid flow recorded by coupled hydration and carbonation of epidote-amphibolite facies metabasaltic sills in the SW Scottish Highlands. American Mineralogist, 100, 2702-2717.

Kleine, B.I., Skelton, A., Huet, B., Pitcairn, I. (2014). Preservation of blueschist facies minerals along a shear zone by coupled metasomatism and fast flowing CO2-bearing fluids. Journal of Petrology, 55, 1905-1939.

 

Conference Proceedings and Abstracts:

Kleine, B.I., Stefánsson, A., Whitehouse, M.J., Zierenberg, R.A:, Weisenberger, T.B., Friðleifsson, G.Ó., Jackson, M.D., Guðmundsson, M.T., (2018). The impact of seafloor alteration on δ18O and δ34S of sulfates in the oceanic crust. Goldschmidt 2018, Boston. Oral presentation

Stefánsson, A., Halldórsson, S.A., Ono, S., Whitehouse, M.J., Bali, E., Kleine, B.I., Gunnarsson-Robin, J. (2018). Isotopic contrains on the origin of sulfur in the Icelandic oceanic crust and hotspot. Goldschmidt 2018, Boston. poster presentation

Gunnarsson-Robin, J., Stefánsson, A., Kleine, B.I. (2018). IsoGem: An isotope gochemical modeling program. Goldschmidt 2018, Boston. poster presentation

Kleine, B.I., Stéfansson, A., Halldórsson, S.A., Whitehouse, M.J., Jónasson, K. (2018) Origin of secondary quartz in the Icelandic crust – A coupled δ18O and δ30Si study. EGU General Assembly 2018, Vienna. Poster presentation

Bergsten, P., Marteinsson, V.Þ., Klonowski, A.M., Vannier, P., Kleine, B.I., Stefánsson, A., Weisenberger, T.B., Jackson, M.D., Guðmundsson M.T. and the SUSTAIN OnSite Team (2018) Preliminary results from 1979 and 2017 ICDP SUSTAIN drilling: the sub-terrestrial biosphere of the neo-island Surtsey. EGU General Assembly 2018, Vienna. Poster presentation

Kleine, B.I., Stéfansson, A., Halldórsson, S.A., Whitehouse, M.J., Jónasson, K. (2018) Quartz formation processes in the Icelandic crust – A coupled δ18O and δ30Si study. Spring meeting 2018 Jarðfræðafélag Íslands, Reykjavík. Oral presentation

Sæmundur A. Halldórsson, S.A., Kleine, B.I., Barnes, J.D., Stefánsson, A., Hilton, D.R., Hauri, E.H., Hallis, L.J. (2018) Resolving water sources in Icelandic basalts: insights from hydrogen isotopes. Spring meeting 2018 Jarðfræðafélag Íslands, Reykjavík. Poster presentation

Gudmundsson, M.T, Weisenberger, T.B., Jónasson, K., Stefánsson, A., Marteinsson V. Þ., Jackson, M.D., White, J.D.L., Gorny, C., McPhie, J., Rhodes, J.M., Jörgensen, S., Tuerke, A., Snorrason, S.P., Guðmundsson, Á., Bergsten, P., Kleine, B.I., Prause, S., Högnadóttir, Þ., Gunnlaugsson, Á. Þ., Ólafsson, E. S., Massey, E., Couper, S., Klonowski, A., Barich, A., Jónsson, S.S., Franzson, H., Onstad, S.L., borhópurinn úr Surtsey (2018) Surtseyjarborunin 2017: Fjölþjóðlega verkefnið SUSTAIN, fyrstu niðurstöður. Spring meeting 2018 Jarðfræðafélag Íslands, Reykjavík. Oral presentation

Kleine, B.I., Stefánsson, A., Halldórsson, S.A., Whitehouse, M.J., Jónasson, K. (2017). Origin of quartz in the Icelandic crust evident from δ30Si and δ18O isotope. IAVCEI 2017, Portland. Poster presentation

Kleine, B.I., Stefánsson, A., Halldórsson, S.A., Whitehouse, M.J., Jónasson, K. (2017). Constraints on quartz formation processes in the Icelandic crust: a coupled δ18O and δ30Si approach. Goldschmidt 2017, Paris. Poster presentation

Halldórsson, S.A., Kleine, B.I., Barnes, J.D., Stefánsson, A., Hilton, D.R., Hauri, E.H., Hallis, L.J. (2017). Hydrogen isotope and water origin in the Iceland mantle plume source. Goldschmidt 2017, Paris. Poster presentation

Kleine, B.I., Stefánsson, A., Halldórsson, S.A., Whitehouse, M.J., Barnes, J.D., Jónasson, K., Franzson, H. (2016). Hydrogen, oxygen and silicon isotope systematics of groundwater-magma interaction in Icelandic hydrothermal systems. AGU Fall Meeting 2016, San Francisco. Poster presentation

Kleine, B.I., Stefánsson, A., Halldórsson, S.A., Whitehouse, M.J., Barnes, J.D., Jónasson, K., Franzson, H. (2016). Coupled hydrogen, oxygen and silicon isotope systematics of groundwater-magma interaction in Icelandic hydrothermal systems. EMC2016, Rimini. Oral presentation

Kleine, B.I., Skelton, A., Huet, B., Pitcairn, I. (2014). Preservation of blueschist facies minerals along a shear zone by fast flowing CO2-bearing fluids – A field study from the Cycladic Blueschist Unit on Syros, Greece. AGU Fall Meeting 2014, San Francisco. Oral presentation

Kleine, B.I., Zhao, Z., Skelton, A. (2014). Extremely fast fluid fluxes through metamorphic rocks on Syros, Greece. Bolin Days 2014, Stockholm. Poster presentation

Kleine, B.I., Skelton, A., Huet, B., Pitcairn, I. (2014). Preservation of blueschist facies minerals along a shear zone by coupled metasomatism and fast flowing high XCO2 fluids. Nordic Geological Winter Meeting 2014, Lund. Oral presen

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