Ammonium in high-pressure minerals - a sink for hydrogen and nitrogen in the Earth´s mantle

• Applicant: Professor Dr. Wilhelm Heinrich
• Subject Area: Mineralogy, Petrology and Geochemistry
• Term: from 2006 to 2010
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 24817682

• Final Report Year: 2010

Final Report Abstract

No abstract available

Publications

• (2008) Quantification of the hydrogen-bond geometry in topaz-OH by low-T IR-spectroscopy. 12th International Conference on Experimental Mineralogy, Petrology and Geochemistry - EMPG XII (Innsbruck, Austria 2008), 114
  Watenphul A., Wunder B., Koch-Müller M., Gottschalk M.
  
• (2008) Synthesis and characterization of the high-pressure phases NH4-hollandite, NH4-wadeite, NH4-cymrite and NH4-phengite. 18. Goldschmidt Conference (Vancouver, Canada 2008). Geochimica et Cosmochimica Acta, 72, A1008
  Watenphul A., Wunder B., Heinrich W.
  
• (2008) Synthesis and characterization of the high-pressure phases NHi-hollandite, NH4-wadeite, NH4-cymrite and solid solutions of (NH4,K) phengite. 12th International Conference on Experimental Mineralogy, Petrology and Geochemistry - EMPG XII (Innsbruck, Austria 2008), 115
  Watenphul A., Wunder B., Kurzweil F., Heinrich W.
  
• (2008) Temperature dependence of the OH-stretching mode in topaz-OH and F-rich natural topaz. 86. Jahrestagung der Deutschen Mineralogischen Gesellschaft (Berlin 2008), 217
  Watenphul A., Wunder B., Koch-Müller M.
  
• (2009) Ammonium-bearing dinopyroxene: A potential nitrogen reservoir in the Earth's mantle. 19. Goldschmidt Conference (Davos, Switzerland 2009). Geochimica et Cosmochimica Acta, 73, A1421
  Watenphul A., Wunder B., Heinrich W.
  
• (2009) High-pressure ammonium-bearing silicates: Implications for nitrogen and hydrogen storage in the Earth's mantle. American Mineralogist 94, 283-292
  Watenphul A., Wunder B., Heinrich W.
  
• (2009) Li-isotope partitioning between serpentine phases and fluid. 19. Goldschmidt Conference (Davos, Switzerland 2009). Geochimica et Cosmochimica Acta, 73, A1456
  Wunder B., Watenphul A., Deschamps F., Guillot S., Meixner A., Romer R.L., Wirth R.
  
• (2009) Nitrogen cycle between surface and mantle. AGU Annual Meeting (San Francisco, USA 2009), 689251
  Watenphul A., Heinrich W.
  
• (2009) Raman spectroscopic study of NH4Cl fluids to 600°C, 1.3 GPa. 20th European Current Research on Fluids Inclusions - ECROFI XX (Granada, Spain 2009), pp. 279-280
  Watenphul A., Schmidt C.
  
• (2010) Ammonium-bearing dinopyroxene: A potential nitrogen reservoir in the Earth's mantle. Chemical Geology, 270 (1-4), 240-248
  Watenphul A., Wunder B., Wirth R., Heinrich W.
  
• (2010) The effect of chrysotile-na no tubes on the serpentine-fluid Li-isotopic fractionation. Contributions to Mineralogy and Petrology
  Wunder B., Deschamps F., Watenphul A., Guillot S., Meixne, A., Romer R.L., Wirth R.
  
• (2010) The OH site in topaz - An IR spectroscopic investigation. Physics and Chemistry of Minerals
  Watenphul A., Libowitzky E., Wunder B., Gottschalk M.
  
• (2010): Temperature-dependence of the OH-stretching frequencies in topaz-OH. Physics and Chemistry of Minerals, 37, 65-72
  Watenphul A., Wunder B.