Staff and Postgraduate Students
Dr Helen Williams, PhD
Senior Lecturer in the Department of Earth Sciences
Telephone: +44 (0) 191 33 42546
Room number: Rm 333
Contact Dr Helen Williams (email at h.m.williams2@durham.ac.uk)
Research Groups
- The Solid Earth
Publications
- 1: Williams, H.M., Wood, B.J., Wade, J., Frost, D. & Tuff, J. (2012). Isotopic evidence for internal oxidation of the Earth's mantle during accretion. Earth and Planetary Science Letters 321-322: 54-63.
- 2: Hibbert, K.E.J., Williams, H.M., Kerr, A.C. & Puchtel, I. (2012). Iron isotopes in ancient and modern komatiites: Evidence in support of an oxidised mantle from Archean to present. Earth and Planetary Science Letters 321-322: 198-207.
- 3: Gall, L., Williams, H.M., Siebert, C. & Halliday, A.N. (2012). Determination of mass-dependent variations in nickel isotope compositions using double spiking and MC-ICPMS. Journal of Analytical Atomic Spectrometry 27(1): 137-145.
- 4: Armytage, R. M. G., Georg, R.B. Williams, H.M. & Halliday, A.N. (2012). Silicon isotopes in lunar rocks: implications for the Moon’s formation and the early history of the Earth. Geochimica et Cosmochimica Acta 77: 504–514.
- 5: Williams, Helen M. & Archer, Corey (2011). Copper stable isotopes as tracers of metal-sulphide segregation and fractional crystallisation processes on iron meteorite parent bodies. Geochimica et Cosmochimica Acta 75(11): 3166-3178.
- 6: Savage, Paul S., Georg, R. Bastian, Williams, Helen M., Burton, Kevin W. & Halliday, Alex N. (2011). Silicon isotope fractionation during magmatic differentiation. Geochimica et Cosmochimica Acta 75(20): 6124-6139.
- 7: Armytage, R. M. G., Georg, R. B., Savage, P. S., Williams, H. M. & Halliday, A. N. (2011). Silicon isotopes in meteorites and planetary core formation. Geochimica et Cosmochimica Acta 75(13): 3662-3676.
- 8: Savage, P. S., Georg, R. B., Armytage, R. M. G., Williams, H. M. & Halliday, A. N. (2010). Silicon isotope homogeneity in the mantle. Earth and Planetary Science Letters 295(1-2): 139-146.
- 9: Baker, R. G. A., Schonbachler, M., Rehkamper, M., Williams, H. M. & Halliday, A. N. (2010). The thallium isotope composition of carbonaceous chondrites - New evidence for live (205)Pb in the early solar system. Earth and Planetary Science Letters 291(1-4): 39-47.
- 10: Horner, T. J., Schonbachler, M., Rehkamper, M., Nielsen, S. G., Williams, H., Halliday, A. N., Xue, Z. & Hein, J. R. (2010). Ferromanganese crusts as archives of deep water Cd isotope compositions. Geochemistry Geophysics Geosystems 11(4): Q04001.
- 11: Williams, Helen M., Nielsen, Sune G., Renac, Christophe, Griffin, William L., O'Reilly, Suzanne Y., McCammon, Catherine A., Pearson, Norman, Viljoen, Fanus, Alt, Jeffrey C. & Halliday, Alex N. (2009). Fractionation of oxygen and iron isotopes by partial melting processes: Implications for the interpretation of stable isotope signatures in mafic rocks. Earth and Planetary Science Letters 283(1-4): 156-166.
- 12: Nielsen, S. G., Williams, H.M., Griffin, William L., O'Reilly, Suzanne Y., Pearson, N. & Viljoen, Fanus (2009). Thallium isotopes as a potential tracer for the origin of cratonic eclogites. Geochimica et Cosmochimica Acta 73(24): 7387-7398.
- 13: Williams, H. M., Markowski, A., Quitte, G., Halliday, A. N., Teutsch, N. & Levasseur, S. (2006). Fe isotope fractionation in iron meteorites: New insights into metal-sulphide segregation and planetary accretion. Earth and Planetary Science Letters 250(3-4): 486-500.
- 14: Williams, H. M., Peslier, A. H., McCammon, C., Halliday, A. N., Levasseur, S., Teutsch, N. & Burg, J. P. (2005). Systematic iron isotope variations in mantle rocks and minerals: The effects of partial melting and oxygen fugacity. Earth and Planetary Science Letters 235(1-2): 435-452.
- 15: Williams, H. M., McCammon, C. A., Peslier, A. H., Halliday, A. N., Teutsch, N., Levasseur, S. & Burg, J. P. (2004). Iron isotope fractionation and the oxygen fugacity of the mantle. Science 304(5677): 1656-1659.
- 16: Williams, H. M., Turner, S. P., Pearce, J. A., Kelley, S. P. & Harris, N. B. W. (2004). Nature of the source regions for post-collisional, potassic magmatism in southern and northern Tibet from geochemical variations and inverse trace element modelling. Journal of Petrology 45(3): 555-607.
- 17: Williams, H., Turner, S., Kelley, S. & Harris, N. (2001). Age and composition of dikes in Southern Tibet: New constraints on the timing of east-west extension and its relationship to postcollisional volcanism. Geology 29(4): 339-342.
- 18: Schaefer, B. F., Turner, S. P., Rogers, N. W., Hawkesworth, C. J., Williams, H. M., Pearson, D. G. & Nowell, G. M. (2000). Re-Os isotope characteristics of postorogenic lavas: Implications for the nature of young lithospheric mantle and its contribution to basaltic magmas. Geology 28(6): 563-566.