John Maclennan
University Lecturer in Earth Sciences
Fellow of Emmanuel College

I use the rocky products of volcanic eruptions to understand processes that occur inside the earth.   Everybody knows that volcanoes are dangerous and a looming hazard for much of the global population. But these mouths sometimes speak of the deep earth. I use the chemistry of lava to investigate how magma is made in the earth and how it moves upwards to feed eruptions. I also study the links between volcanism and processes that influence the earth's surface, such as glaciation, hydrothermal activity, climate change and uplift.

What sort of work does this research involve? (for non-experts)

Recent News:

  • Oct 2010 »  Remember to register for the Volcanic and Magmatic Studies Group (VMSG) meeting!
  • Oct 2010 » Look at the new list of Departmental Seminars using the talks.cam facility.
  • Sep 2010 »  Royal Society Research Grant to purchase microscope equipment for Raman spectrometer awarded to Maclennan
  • Aug 2010 »  Organising committee for Nordic Council Summer School in Iceland
  • Apr 2010 »  Eyjafjallajökull eruption. Busy providing adivce to media, industry and government agencies
  • Jan 2010 »  NERC small grant to work on magmatic degassing awarded to Edmonds, Maclennan and Turchyn.
  • Sep 2009 » Just completed a visiting fellowship at Institute for Study of the Earth's Interior at Okayama University in Misasa, Japan.
  • Jan 2009 »  NERC-IODP grant to work on V-shaped ridges awarded to White, Maclennan, Murton and Henstock.