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Contributions to Mineralogy and Petrology

, Volume 164, Issue 6, pp 1083–1085 | Cite as

Reply to ‘Comment on “The beginnings of hydrous mantle wedge melting” by Till et al.’ by Green, Rosenthal and Kovacs

  • Christy B. Till
  • Timothy L. Grove
  • Anthony C. Withers
Reply

Abstract

The comment of Green et al. debates the interpretation of the temperature of the H2O-saturated peridotite solidus and presence of silicate melt in the experiments of Till et al. (Contrib Mineral Petrol 163:669–688, 2012) at <1,000 °C. The criticisms presented in their comment do not invalidate any of the most compelling observations of Till et al. (Contrib Mineral Petrol 163:669–688, 2012) as discussed in the following response, including the changing minor element and Mg# composition of the solid phases with increasing temperature in our experiments with 14.5 wt% H2O at 3.2 GPa, as well as the results of our chlorite peridotite melting experiments with 0.7 wt% H2O. The point remains that Till et al. (Contrib Mineral Petrol 163:669–688, 2012) present data that call into question the H2O-saturated peridotite solidus temperature preferred by Green (Tectonophysics 13(1–4):47–71, 1972; Earth Planet Sci Lett 19(1):37–53, 1973; Can Miner 14:255–268, 1976); Millhollen et al. (J Geol 82(5):575–587, 1974); Mengel and Green (Stability of amphibole and phlogopite in metasomatized peridotite under water-saturated and water-undersaturated conditions, Geological Society of Australia Special Publication, Blackwell, pp 571-581, 1989); Wallace and Green (Mineral Petrol 44:1–19, 1991) and Green et al. (Nature 467(7314):448–451, 2010).

Keywords

H2O-saturated Peridotite solidus Hydrous melting Chlorite 

References

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Copyright information

© Springer-Verlag 2012

Authors and Affiliations

  • Christy B. Till
    • 1
    • 2
  • Timothy L. Grove
    • 3
  • Anthony C. Withers
    • 4
  1. 1.Department of Earth, Atmospheric and Planetary SciencesMassachusetts Institute of TechnologyCambridgeUSA
  2. 2.United States Geological SurveyMenlo ParkUSA
  3. 3.Massachusetts Institute of TechnologyCambridgeUSA
  4. 4.Department of Geology and GeophysicsUniversity of MinnesotaMinneapolisUSA

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