People

Dr Andrew Miles

Lecturer in igneous petrology and geochemistry

School/Department: Geography Geology & The Environment, School of

Telephone: +44 (0)116 373 6449

Email: ajm131@leicester.ac.uk

Profile

I am an igneous petrologist who joined the University of Leicester in 2017. I was previously a lecturer at Kingston University London after completing my PhD at the University of Edinburgh and an undergraduate MSci and BA at the University of Cambridge.

Research

My research focuses on investigating the chemical stratigraphy of robust accessory minerals to understand the generation and evolution of silicic magmas within the Earth’s crust. These minerals often document multiple stages of magma evolution which coupled with their inventory of key elements enables better constraints on a wide variety of igneous processes including:

Rates of magma generation and emplacement

Magma sources

Mineralisation processes

Magma degassing histories

Magma redox conditions

These processes have direct applications for the evolution of Earth’s continental crust mineralisation and exploration for geothermal energy.

Publications

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Satow, C., Gudmundsson, A., Gertisser, R., Brink Ramsey, C.B., Bazargan, M., Pyle, D.M., Wulf, S., Miles, A.J., Hardiman, M. 2021, Eruptive activity of the Santorini Volcano controlled by sea-level rise and fall. Nature Geoscience. doi: 10.1038/s41561-021-00783-4.

Stokes, T.N., Bromiley, G.D., Potts, N.J., Saunders, K.E., Miles, A.J., EIMF., 2019, The effect of melt composition and oxygen fugacity on manganese partitioning between apatite and silicate melt. Chemical Geology, 506, 162-174.

Woodcock, N.H., Soper, N.J., Miles, A.J., 2018, Age of the Acadian deformation and Devonian granites in northern England reviewed. PYGS (https://doi.org/10.1144/pygs2018-009)

Miles, A.J., and Woodcock, N.H., 2018. A combined geochronological approach to investigating long lived granite magmatism, the Shap granite, UK. Lithos, 304, 245-257.

Brugge, E., Wilkinson, J.J., and Miles, A.J., 2017. Habit and chemistry of apatite at Chuquicamata, Chile, In: Proceedings; 15th Biennial Society for Geology Applied to Mineral Deposits (SGA) Conference, Quebec City, August 2017, 287-290.

Brugge, E., Wilkinson, J.J., Miles, A.J., 2017, Fingerprinting fertile porphyry magmas using apatite. Applied Earth Sciences, 126 (2), 46-47.

Miles, A.J., Graham, C.M., Gillespie, M.R., Hawkesworth, C.J., Hinton, R.W., 2016, Reply to comment by Marks et al. (2016) on 'Apatite: A new redox proxy for silicic magmas?' Geochimica et Cosmochimica Acta, v.183, p. 271-273.

Miles, A.J., Woodcock, N.H., Hawkesworth, C.J., 2016, Tectonic controls on post-subduction granite genesis and emplacement: the Late Caledonian suite of Britain and Ireland: Gondwana Research, v.39, p. 250-260.

Jarvis, I., Gröcke, D., Laurin, J., Selby, D., Roest-Ellis, S., Miles, A.J., Lingnum, J., Gale, A., Kennedy, J., 2016, Paired carbon stable-isotope records for the Cenomanian Stage (100.5-93.9 Ma): correclation tool and Late Cretaceous pCO2 record? EGU 2016 (Abstract)

Miles, A.J., Graham, C.M., Gillespie, M.R., Hawkesworth, C.J., Hinton, R.W. 2015, Apatite: A new redox proxy for silicic magmas? EGU 2015 (Abstract)

Bromiley, G.D., Stokes, T., Miles, A.J., 2015 Manganese speciation in apatite: a tool for determining redox conditions in magmas? Goldschmidt 2015 (Abstract).

Miles, A.J., Graham, C.M., Gillespie, M.R., Hawkesworth, C.J., Hinton, R.W. 2014, Apatite: A new redox proxy for silicic magmas? Geochimica et Cosmochimica Acta, v. 132, p. 101-119.

Miles, A.J., Graham, C.M., Gillespie, M.R., Hawkesworth, C.J., Dhuime, B., Hinton, R.W. 2014, Using zircon isotope compositions to constrain crustal structure and pluton evolution in a complex lithotectonic terrane: the Iapetus Suture Zone in northern Britain: Journal of Petrology, v. 166, P. 1-19.

Miles, A.J., Graham, C.M., Hawkesworth, C.J., Gillespie, M.R., Hinton, R.W., EIMF, 2013, Evidence for distinct stages of magma history recorded by the compositions of accessory apatite and zircon: Contributions to Mineralogy and Petrology, v. 166, p. 1-19.

Miles, A.J., Graham, C.M., Hawkesworth, C.J., Gillespie, M.R., Hinton, R.W., EIMF, 2012, Evidence for Distinct Stages of Magma Evolution Recorded in the Composition of Accessory Phases and Whole-Rocks in Silicic Magmas: Mineralogical Magazine (Abstract) v. 76(6), 2107.

Miles, A.J., and Cartwright, J.A., 2010, Hybrid flow sills: A new mode of igneous sheet intrusion: Geology, v. 38, p. 343-346.

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Supervision

Rates of magma generation and emplacement Magma sources Mineralisation processes Magma degassing histories Magma redox conditions These processes have direct applications for the evolution of Earth’s continental crust mineralisation and exploration for geothermal energy.

Teaching

GL1101 - The Rock Cycle

GL1100 - Tutorials

GL2100 - Geological Field Skills

GL2103 - Magmatic and Metamorphic Processes

GL3070 - Physical Volcanology

GL3118 - Crustal Dynamics

GL3072 - Dissertations

GL4105 - Advanced Fieldwork

GL4017 - Hot Topics

Press and media

Magmas volcanoes
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