Photo of Prof John Wheeler

Prof John Wheeler Ph.D.

George Herdman Professor of Geology Earth, Ocean and Ecological Sciences

    Research

    Research Interest 1

    My research interests include small and large-scale aspects of Earth dynamics, and also the behaviour of metals and ceramics.

    * Modelling of diffusion creep (pressure solution, Coble creep, Nabarro-Herring creep) in single and multiphase systems (rocks, metals and ceramics)
    * Observation and modelling of dislocation creep, recovery and recrystallisation in single and multiphase systems (rocks, metals and ceramics)
    * Observation and modelling of solid state phase transformations in single and multiphase systems (rocks, metals and ceramics)
    * Applications of Electron Backscatter Diffraction in Earth sciences, metallurgy and materials science
    * Fluid flow and chemical reaction in deforming systems
    * Orogenic evolution and the significance of high pressure metamorphic rocks

    Research Grants

    Calibration of a new model for mantle viscosity: the role of grain boundaries from bicrystal experiments

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    November 2018 - October 2021

    The Strength of the Lower Mantle

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    June 2014 - December 2017

    Local stresses and texture evolution during metamorphism Phase transformation in Titanium observed in-situ using Electron Backscatter Diffraction

    ROYAL SOCIETY (CHARITABLE)

    July 2006

    Diffusion creep in single and multi-phase crystalline materials.

    ROYAL SOCIETY (CHARITABLE)

    May 2003 - July 2003

    Mudstone microstructure evolution during burial and diagenesis and effect on caprock sealing capacity.

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    December 2001 - February 2003

    Interactions of stress and chemical processes in rocks.

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    June 2001 - June 2002

    Grain nucleation mechanisms during recrystallization of deforming rocks: implications for creep processes and rheology.

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    October 2002 - September 2007

    The effects of overprinting on rock fabrics and isotopic ages: the Lewisian Complex as a case study.

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    September 2008 - August 2011

    Diffusion creep and microstructural evolution.

    ROYAL SOCIETY (CHARITABLE)

    August 2004

    Chemical behaviour in stressed systems.

    ROYAL SOCIETY (CHARITABLE)

    June 2005 - December 2005

    Deformation at 100 km depth in a continental subduction channel

    ROYAL SOCIETY (CHARITABLE)

    April 2006 - June 2006

    Fluid flow in the Earth: the influence of dehydration reactions and stress

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    September 2012 - June 2017

    Feedback between physical and chemical processes during dehydration reactions.

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    September 2005 - June 2009

    Linking experimental to natural rock deformation: quantitative microstructural analysis of quartz and feldspar.

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    November 1998 - April 2002

    American Geophysical Union 2007 Fall Meeting Conference

    ROYAL SOCIETY (CHARITABLE)

    December 2007

    The Feedback Between Volatiles and Mantle Dynamics

    NATURAL ENVIRONMENT RESEARCH COUNCIL (NERC)

    September 2014 - March 2021

    A new SEM configuration for quantitative tracking of microstructural changes during high temperature experiments.

    HIGHER EDUCATION FUND COUNCIL FOR ENGLAND (UK)

    January 1999 - December 2001