Tim Jones
Postdoctoral Fellow

Tim Jones

Research Interests

Mantle convection; mantle geochemistry; numerical modelling; plate tectonics

Academics

B.Sc., 2010, Geophysics, Macquarie University, Sydney
Ph.D., 2017, Geophysics, Australian National University, Canberra

Contact & Links

  • (202) 478-2394
  • tjones@carnegiescience.edu
  • Department of Terrestrial Magnetism
    Carnegie Institution of Washington
    5241 Broad Branch Road, NW
    Washington, DC 20015-1305
  • curriculum vitae

Overview

Mantle Convection
A conceptual drawing of mantle convection, by Geoff Davies.

What do plumes tell us about the deep mantle from which they originate? Can we determine the structure and composition their source region from surface observations? I have approached this topic by investigating the relationship between mantle plume dynamics, Earth's thermo-chemical structure, and geochemical trends recorded by volcanic hotspots, using numerical simulations that are supported by geophysical and geochemical data sets. We show that hotspot lavas reveal a wide range of dynamical plumes behaviour previously unrecognised, and that the systematic geochemical trends recorded in hotspot lavas have a complex relationship with deep mantle structure and composition. My collaborators include: Rhodri Davies, Ian Campbell, Giampiero Iaffaldano, Greg Yaxley, Cian Wilson, Stephan Kramer, Paolo Sossi.

My current work focuses more on the dynamical and chemical evolution of Earth’s mantle. By tracing the isotopic evolution of whole-mantle convection models, we aim to test hypotheses of how the mantle has evolved, dynamically and chemically, to its present state. My collaborators so far include: Peter van Keken, Erik Hauri, and Jonathon Tucker.