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dc.contributor.authorPowell, R.
dc.contributor.authorEvans, K. A.
dc.contributor.authorGreen, E. C. R.
dc.contributor.authorWhite, R. W.
dc.identifier.citationPowell , R , Evans , K A , Green , E C R & White , R W 2018 , ' On equilibrium in non-hydrostatic metamorphic systems ' , Journal of Metamorphic Geology , vol. 36 , no. 4 , pp. 419-438 .
dc.identifier.otherPURE: 251814521
dc.identifier.otherPURE UUID: 9fcbe9c6-9089-4de6-ae50-951d70823cd0
dc.identifier.otherBibtex: urn:214324970297730ae4a67481d2c16e45
dc.identifier.otherScopus: 85044733089
dc.identifier.otherORCID: /0000-0002-5270-3985/work/41207390
dc.identifier.otherWOS: 000428886600002
dc.description.abstractMetamorphic geology has accumulated a huge body of observation on mineral assemblages that reveal strong patterns in occurrence, summarised for example in the idea of metamorphic facies. On the realisation that such patterns needed a simple explanation, there has been considerable a posteriori success from adopting the idea that equilibrium thermodynamics can be used on mineral assemblages to make sense of the patterns in terms of, for example, the pressure and temperature of formation of mineral assemblages. In doing so, a particularly simple implicit assumption is made, that mineral assemblages operate essentially hydrostatically. Structural geologists have studied the same rocks for different ends, but, remarkably, the phenomena they are interested in depend on non-hydrostatic stress. We look at the effect of such behaviour on mineral equilibria. With adoption of some plausible assumptions about how metamorphism in the crust works, the consequence of minerals being non-hydrostatically stressed is commonly second order in equilibrium calculations.
dc.relation.ispartofJournal of Metamorphic Geologyen
dc.rights© 2017 John Wiley & Sons Ltd. This work has been made available online in accordance with the publisher’s policies. This is the author created, accepted version manuscript following peer review and may differ slightly from the final published version. The final published version of this work is available at
dc.subjectElastic solidsen
dc.subjectEquilibrium thermodynamicsen
dc.subjectLattice constrainten
dc.subjectNon-hydrostatic stressen
dc.subjectQE Geologyen
dc.subjectQD Chemistryen
dc.titleOn equilibrium in non-hydrostatic metamorphic systemsen
dc.typeJournal articleen
dc.contributor.institutionUniversity of St Andrews. School of Earth & Environmental Sciencesen
dc.description.statusPeer revieweden

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