Research

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Water in the Earth's interior

Trace element partitioning

Volatiles in melts

D/H isotopes

Equation of state for water

High pressure experiments

Publication list

Contact:

Water in the Earth's interior

polarised IR

Trace element partitioning

Volatiles in melts

D/H isotopes in the Earth

poster presented at Fall AGU, 2003

Equation of state for water

Fugacity calculator

High pressure experiments

 

The multi-anvil at the University of Minnesota. Pressure and temperature control is fully automated: simply set the pressure and temperature for your experiment in the computer interface, go back to your office and check the progress of your experiment on the web. Look out for progress reports in your email inbox!

Publication list

A.C. Withers, M.R. Carroll and B.J. Wood (1998). The OH content of pyrope at high pressure. Chemical Geology. 147: 161-171. doi: 10.1016/S0009-2541(97)00179-4

A.C. Withers and H. Behrens (1999). Temperature induced changes in the NIR spectra of hydrous albitic and rhyolitic glasses between 300 and 100 K. Physics and Chemistry of Minerals. 27: 119-132. doi: 10.1007/s002690050248

A.C. Withers, H. Behrens and Y. Zhang (1999). Reconciliation of experimental results on H₂O speciation in rhyolitic glass using in-situ and quenching techniques. Earth and Planetary Science Letters. 173: 343-349. doi: 10.1016/S0012-821X(99)00228-9

A.C. Withers, S.C. Kohn, R.A. Brooker and B.J. Wood (2000). A new method for determining the P-V-T properties of high density H₂O using NMR: Results at 1.4-4.0 GPa and 700-1100°C. Geochimica et Cosmochimica Acta. 64: 1051-1057*. doi: 10.1016/S0016-7037(99)00318-X

* see also Science Magazine Editors' Choice, Volume 288, Number 5464, Issue of 14 April 2000.

A.C. Withers, E.J. Essene and Y Zhang (2003). Rutile/TiO₂II phase equilibria. Contributions to Mineralogy and Petrology. 145: 199-204. doi: 10.1007/s00410-003-0445-2

R. Dasgupta, M.M. Hirschmann and A.C. Withers (2004). Deep global cycling of carbon constrained by the solidus of anhydrous, carbonated eclogite under upper mantle conditions. Earth and Planetary Science Letters. 227: 73-85. doi: 10.1016/j.epsl.2004.08.004

M.M. Hirschmann, C. Aubaud and A.C. Withers (2005). Storage capacity of H₂O in nominally anhydrous minerals in the upper mantle. Earth and Planetary Science Letters 236: 167-181. doi: 10.1016/j.epsl.2005.04.022

J.R. Allwardt, J.F. Stebbins, B.C. Schmidt, D.J. Frost, A.C. Withers and M.M. Hirschmann (2005). Aluminum coordination and the densification of high-pressure aluminosilicate glasses. American Mineralogist. 90: 1218-1222. doi: 10.2138/am.2005.1836

W. Yong, E. Dachs, A.C. Withers and E.J. Essene (2006). Heat capacity and phase equilibria of hollandite polymorph of KAlSi₃O₈. Physics and Chemistry of Minerals. 33: 167-177. doi: 10.1007/s00269-006-0063-4

M.M. Hirschmann, A.C. Withers and C. Aubaud (2006). Petrologic Structure of a Hydrous 410 km Discontinuity. In Earth’s Deep Water Cycle (ed. S. Jacobson and S. van der Lee) Geophysical Monograph Series, vol. 168, pp. 277-287. American Geophysical Union. doi: 10.1029/168GM21

C. Aubaud, A.C. Withers, M.M. Hirschmann, Y. Guan, L.A. Leshin, S.J. Mackwell and D.R. Bell (2007). Intercalibration of FTIR and SIMS for hydrogen measurements in glasses and nominally anhydrous minerals. American Mineralogist. 92: 811-828. doi: 10.2138/am.2007.2248

W. Yong, E. Dachs, A.C. Withers and E.J. Essene (2007). Heat capacity of g-Fe₂SiO₄ between 5 and 303 K and derived thermodynamic properties. Physics and Chemistry of Minerals. 34: 121-127. doi: 10.1007/s00269-006-0133-7

J.R. Allwardt, J.F. Stebbins, H. Terasaki, L-S. Du, D.J. Frost, A.C. Withers, M.M. Hirschmann, A. Suzuki and E. Ohtani. (2007). Effect of structural transitions on properties of high-pressure silicate melts: ²⁷Al NMR, glass densities, and melt viscosities. American Mineralogist. 92: 1093-1105. doi: 10.2138/am.2007.2530

A.C. Withers and M.M. Hirschmann (2007). H₂O storage capacity of MgSiO₃ clinoenstatite at 8-13 GPa, 1100-1400 °C. Contributions to Mineralogy and Petrology. 154: 663–674. doi: 10.1007/s00410-007-0215-7

W. Yong, E. Dachs, A.C. Withers and E.J. Essene (2008). Heat capacity and phase equilibria of wadeite-type K₂Si₄O₉. Contributions to Mineralogy and Petrology. 155: 137-1465. doi: 10.1007/s00410-007-0232-6

C. Aubaud, M.M. Hirschmann, A.C. Withers and R.L. Hervig (2008). Hydrogen partitioning between melt, clinopyroxene and garnet at 3 GPa in a hydrous MORB with 6 wt.% H₂O. Contributions to Mineralogy and Petrology. 156: 607–625. doi: 10.1007/s00410-008-0304-2

A.C. Withers and M.M. Hirschmann (2008). Influence of temperature, composition, silica activity and oxygen fugacity on the H₂O storage capacity of olivine at 8 GPa. Contributions to Mineralogy and Petrology. 156: 595–605. doi: 10.1007/s00410-008-0303-3

M.M. Hirschmann and A.C. Withers (2008). Ventilation of CO₂ from a reduced mantle and consequences for the early Martian greenhouse. Earth and Planetary Science Letters. 270: 147–155. doi: 10.1016/j.epsl.2008.03.034

R. Dasgupta, M.M. Hirschmann, W.F. McDonough, M. Spiegelman and A.C. Withers (submitted). Trace element partitioning between garnet lherzolite and carbonatitic melt in Earth’s deep upper mantle and its influence on the geochemistry of the mantle and mantle-derived melts. Chemical Geology.

T.J. Tenner, M.M. Hirschmann, A.C. Withers and R.L. Hervig (submitted). Hydrogen partitioning between nominally anhydrous upper mantle minerals and melt between 3 and 5 GPa and applications to hydrous peridotite partial melting. Chemical Geology.

C. Aubaud, H. Bureau, C. Raepsaet, H. Khodja, A.C. Withers, M.M. Hirschmann and D.R. Bell (submitted). Calibration of the infrared molar absorbtion coefficients for H in olivine, clinopyroxene and rhyolitic glass by elastic recoil detection analysis. Chemical Geology.

M.M. Hirschmann, T.J. Tenner, C. Aubaud and A.C. Withers (submitted). Dehydration melting of nominally anhydrous mantle: The primacy of partitioning.

E. Dachs, C.A. Geiger, A.C. Withers and E.J. Essene (submitted). A calorimetric investigation of spessartine: vibrational and magnetic heat capacity.