Ion exchange chromatography and high precision isotopic measurements of zirconium by MC-ICP-MS by Schonbachler, M, Rehkamper, M, Lee, D, Halliday, A

“…The presented method has been successfully applied to terrestrial igneous rocks, meteorites and mineral separates including samples with high Ti contents.…”

Low-blank isotope ratio measurement of small samples of lithium using multiple-collector ICPMS by Magna, T, Wiechert, U, Halliday, A

“…Elution schemes are presented for a range of igneous rocks and minerals. δ 7Li values for standards from the U.S. …”

The vanadium isotopic composition of lunar basalts by Hopkins, S, Prytulak, J, Barling, J, Russell, S, Coles, B, Halliday, A

“…Isotopic compositions are more variable (∼2.5‰) than has been found thus far for terrestrial igneous rocks and extend to lighter values. Magmatic processes do not appear to control the V isotopic composition, despite the large range in oxide proportions in the suite. …”

Silicon isotopes and the development of the Earth by Savage, P, Paul Savage

“…Finally, this research shows that, although igneous rocks and sediments derived from the continental crust can be relatively heterogeneous with respect to Si isotopes, bulk averages calculated for the upper, middle and lower continental crust are all very similar to that of BSE. …”

The silicon isotope composition of granites by Savage, P, Georg, R, Williams, H, Turner, S, Halliday, A, Chappell, B

“…This range is more limited than that defined by previous low precision measurements of granites, but is significantly broader than that displayed by more recent, high precision, measurements of high-Si extrusive igneous rocks. As predicted, S-type granites are, on average, isotopically lighter than I- and A-type samples, and negative correlations with alumina saturation index (ASI) values and initial 87Sr/ 86Sr provide evidence that Si isotope variations in granites can be explained by variable incorporation of an enriched sedimentary component. …”

Development and application of nickel stable isotopes as a new geochemical tracer by Gall, L

“…Significant Ni isotope variations were observed, with an overall spread in delta 60Ni-values of -0.9 to 2.5 permil. In igneous rocks Ni isotopes appear to be largely homogeneous, with only small variations (0.2 permil) between different rock types. …”

The molybdenum isotopic compositions of I-, S- and A- type granitic suites by Yang, J, Barling, J, Siebert, C, Fietzke, J, Stephens, E, Halliday, A

“…The results show relatively large variations in δ98Mo for igneous rocks ranging from -1.73‰ to 0.59‰ with significant overlaps between different types. …”

Kinetic isotope effect during reduction of iron from a silicate melt by Cohen, B, Levasseur, S, Zanda, B, Hewins, R, Halliday, A

“…Iron isotopic compositions measured in chondrules from various chondrites vary between δ 57Fe/ 54Fe = +0.9‰ and -2.0‰, a larger range than for igneous rocks. Whether these compositions were inherited from chondrule precursors, resulted from the chondrule-forming process itself or were produced by later parent body alteration is as yet unclear. …”

Systematic iron isotope variations in mantle rocks and minerals: The effects of partial melting and oxygen fugacity by Williams, H, Peslier, A, McCammon, C, Halliday, A, Levasseur, S, Teutsch, N, Burg, J

“…However, the processes governing iron isotope fractionation in igneous rocks remain poorly understood. Here we show that there are significant variations in the iron isotope compositions (δ57/54Fe) of mantle rocks (0.9‰) and minerals (olivines 0.6‰, clinopyroxenes 0.97permil; and orthopyroxenes 0.8‰), with spinels showing the greatest total variation of 1.7‰. …”