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Prof. Dr. Harald Behrens
Institute: Institut für Mineralogie (Uni Hannover)

Adress: Leibniz Universität Hannover

Callinstr. 3

30167 Hannover
DFG-Projects

Alterationsmechanismen von basaltischen und rhyolitischen Gläsern unter Berücksichtigung derLösungschemie und passivierender Eigenschaften von Palagonit - eine Fallstudie an den ICDP Bohrungen in Hawaii und Snake River Plain (Projektverantwortlicher) (2012 - 2015)


Alterationsmechanismen von basaltischen und rhyolitischen Gläsern unter Berücksichtigung derLösungschemie und passivierender Eigenschaften von Palagonit - eine Fallstudie an den ICDP Bohrungen in Hawaii und Snake River Plain (Projektverantwortlicher) (2014 - 2015)


Carbonation of porous rocks by interaction with magmatic and hydrothermal fluids - a case study on Unzen volcano, Japan (Projektverantwortlicher) (2011 - 2015)


Carbonation of porous rocks by interaction with magmatic and hydrothermal fluids - a case study on Unzen volcano, Japan (Projektverantwortlicher) (2009 - 2015)


Distribution of H20, CO2, S and Cl between silicate melts, gas phase and minerals on the example of the Unzen volcano: application for degassing processes (Beteiligte Person) (2001 - 2005)


Eintrag von gelöstem Fe in das Oberflächenwasser von Ozeanen - quantitative Ansätze von der ICDP-Bohrung Hawaii durch Untersuchung des grenzflächengesteuerten Fe-Transfers aus vulkanischen Gesteinen des tieferen Untergrundes (Projektverantwortlicher) (2016 - ongoing)


Eintrag von gelöstem Fe in das Oberflächenwasser von Ozeanen - quantitative Ansätze von der ICDP-Bohrung Hawaii durch Untersuchung des grenzflächengesteuerten Fe-Transfers aus vulkanischen Gesteinen des tieferen Untergrundes (Projektverantwortlicher) (2018 - ongoing)


Experimental study on vesiculation and formation of groundmass microlites induced by decompression: Constraints on processes related to magma ascent at Unzen volcano (Beteiligte Person) (2007 - 2011)


Experimentelle Untersuchungen zur Tiefenbestimmung von rhyolitischen Magmakammern in der Snake River Plain Provinz, USA. (Beteiligte Person) (2015 - 2016)


Experimentelle Untersuchungen zur Tiefenbestimmung von rhyolitischen Magmakammern in der Snake River Plain Provinz, USA. (Beteiligte Person) (2013 - 2016)


Experimentelle Untersuchungen über die Wechselwirkungen zwischen C-H-O-S Fluiden und Magmen (Beteiligte Person) (1997 - 2002)


Pre-eruptive conditions of the Campanian Ignimbrite eruption: Experimental constraints from phase equilibria and volatile solubility studies and its implication for the Campi Flegrei drilling project (Projektverantwortlicher) (2012 - 2013)


Pre-eruptive conditions of the Campanian Ignimbrite eruption: Experimental constraints from phase equilibria and volatile solubility studies and its implication for the Campi Flegrei drilling project (Projektverantwortlicher) (2010 - 2013)


Viscous flow of magmas from Unzen volcano, Japan - implications for magma mixing and ascent (Projektverantwortlicher) (2002 - 2008)


Related Publications

Zhang C., Li X., Almeev R.R., Horn I., Behrens H., Holtz F. (2020). " Ti-in-quartz thermobarometry and TiO2 solubility in rhyolitic melts: New experiments and parametrization" Earth and Planetary Science Letters 538 p116213


Stranghoener, Marius, Dultz, Stefan, Behrens, Harald, Schippers, Axel (2020). "Far from equilibrium basaltic glass alteration: The influence of Fe redox state and thermal history on element mobilization" Geochimica et Cosmochimica Acta 273 p85-98


Stranghoener, Marius, Dultz, Stefan, Behrens, Harald, Schippers, Axel (2020). "Potential mobilizable Fe from secondary phases of differentially altered subsurface basaltic rock– a sequential extraction study on ICDP site Hawaii" Applied Geochemistry 121 p104705


Stranghörner, Marius, Schippers, Axel, Dultz, Stefan, Behrens, Harald (2018). "Experimental microbial alteration and Fe mobilization from basaltic rocks of the ICDP HSDP2 drill core, Hilo, Hawaii" Frontiers in Microbiology 9 p1-17


Dultz, Stefan, Behrens, Harald, Helsch, Gundula, Deubener, Joachim (2016). "Electrolyte effects on surface chemistry of basaltic glass in the initial stages of dissolution" Chemical Geology 426 p71-84


Fanara, Sara, Botcharnikov, Roman E., Palladino, Danilo M., Adams, Franziska, Buddensieck, Julia, Mulch, Andreas, Behrens, Harald (2015). "Volatiles in magmas related to the Campanian Ignimbrite eruption: Experiments vs. natural findings" American Mineralogist 100 p2284-2297


Dultz, Stefan, Boy, Jens, Dupont, Christoph, Halisch, Matthias, Behrens, Harald, Welsch, Anna-Maria, Erdmann, Martin, Cramm, Sandra, Helsch, Gundula, Deubener, Joachim (2014). "Alteration of a Submarine Basaltic Glass under Environmental Conditions Conducive for Microorganisms: Growth Patterns of the Microbial Community and Mechanism of Palagonite Formation" Geomicrobiology Journal p813-834


Fanara, Sara, Behrens, Harald, Zhang, Youxue (2013). "Water diffusion in potassium-rich phonolitic and trachytic melts" Chemical Geology 346 p149-161


Misiti, V., Vetere, F., Freda, C., Scarlato, P., Behrens, H., Mangiacapra, A., Dingwell, D. B. (2011). "A general viscosity model of Campi Flegrei (Italy) melts" Chemical Geology 290 p50-59


Behrens, Harald (2011). "Erratum for “Trace element diffusion and viscous flow in potassium-rich trachytic and phonolitic melts”, authors Harald Behrens and Matthias Hahn, published in Chemical Geology 259 (2009) 63–77" Chemical Geology p86


Vetere, Francesco, Botcharnikov, Roman E., Holtz, Francois, Behrens, Harald, De Rosa, Rosanna (2011). "Solubility of H2O and CO2 in shoshonitic melts at 1250 °C and pressures from 50 to 400 MPa: Implications for Campi Flegrei magmatic systems" Journal of Volcanology and Geothermal Research 202 p251-261


Cichy, Sarah B., Botcharnikov, Roman E., Holtz, François, Behrens, Harald (2011). "Vesiculation and Microlite Crystallization Induced by Decompression: a Case Study of the 1991–1995 Mt Unzen Eruption (Japan)" Journal of Petrology 52 p1469-1492


Vetere, Francesco, Behrens, Harald, Holtz, Francois, Vilardo, Giuseppe, Ventura, Guido (2010). "Viscosity of crystal-bearing melts and its implication for magma ascent" Journal of Mineralogical and Petrological Sciences 105 p151-163


BEHRENS, HARALD, MISITI, VALERIA, FREDA, CARMELA, VETERE, FRANCESCO, BOTCHARNIKOV, ROMAN E, SCARLATO, PIERGIORGIO (2009). "Solubility of H2O and CO2 in ultrapotassic melts at 1200 and 1250 C and pressure from 50 to 500 MPa" American Mineralogist 94 p105-120


Behrens, Harald, Hahn, Matthias (2009). "Trace element diffusion and viscous flow in potassium-rich trachytic and phonolitic melts" Chemical Geology 259 p63-77


Botcharnikov, Roman E., Holtz, Francois, Almeev, Renat R., Sato, Hiroaki, Behrens, Harald (2008). "Storage conditions and evolution of andesitic magma prior to the 1991–95 eruption of Unzen volcano: Constraints from natural samples and phase equilibria experiments" Journal of Volcanology and Geothermal Research 175 p168-180


Vetere, Francesco, Behrens, Harald, Schuessler, Jan A., Holtz, Francois, Misiti, Valeria, Borchers, L. (2008). "Viscosity of andesite melts and its implication for magma mixing prior to Unzen 1991–1995 eruption" Journal of Volcanology and Geothermal Research 275 p208-217


Botcharnikov, Roman E, Holtz, Francois, Behrens, Harald (2007). "The effect of CO2 on the solubility of H2O-Cl fluids in andesitic melt" European Journal of Mineralogy 19 p671-680


Botcharnikov, R. E., Behrens, H., Holtz, F. (2006). "Solubility and speciation of C–O–H fluids in andesitic melt at T = 1100–1300 °C and P = 200 and 500 MPa" Chemical Geology 229 p125-143


Sato, Hiroaki, Holtz, Francois, Behrens, Harald, Botcharnikov, Roman, Nakada, Setsuya (2005). "Experimental Petrology of the 1991–1995 Unzen Dacite, Japan. Part II: Cl/OH Partitioning between Hornblende and Melt and its Implications for the Origin of Oscillatory Zoning of Hornblende Phenocrysts" Journal of Petrology 46 (2) p339-354


Holtz, Francois, Sato, Hiroaki, Lewis, Jared, Behrens, Harald, Nakada, Setsuya (2005). "Experimental petrology of the 1991–1995 Unzen dacite, Japan. Part I: phase relations, phase composition and pre-eruptive conditions" Journal of Petrology 46 (2) p319-337


Behrens, Harald, Ohlhorst, Susanne, Holtz, Francois, Champenois, Michel (2004). "CO2 solubility in dacitic melts equilibrated with H2O-CO2 fluids: Implications for modeling the solubility of CO2 in silicic melts" Geochimica et Cosmochimica Acta 68 (22) p4687-4703


Ohlhorst, Susanne, Behrens, Harald, Holtz, François (2001). "Compositional dependence of molar absorptivities of near-infrared OH- and H2O bands in rhyolitic to basaltic glasses" Chemical Geology 174 p5-20


Tamic, Nathalie, Behrens, Harald, Holtz, François (2001). "The solubility of H2O and CO2 in rhyolitic melts in equilibrium with a mixed CO2–H2O fluid phase" Chemical Geology 174 (1-3) p333-347