Pells Sullivan Meynink

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Mark Fowler

Principal Engineering Geologist


Principal Engineering Geologist and Managing Director of PSM, Mark Fowler has over 25 years’ experience in his field. Mark’s primary areas of practice include open-pit geomechanics and pore pressure assessments for large mining and civil projects which includes detailed knowledge of monitoring and stress testing.  He has worked on approximately 100 major mining projects in Australia, Asia, Africa and the United States.

Other special interests

Mark has a keen interest in short-life operations and large-scale pits in complex risk settings and has a particular talent at finding practical solutions to operational issues. Marked has worked on several large and technically challenging projects including Olympic Dam open pit expansion and in the geothermal conditions at Lihir gold mine. He has also worked on several prominent Sydney transport sector tunnelling projects including large caverns with shallow cover for the Epping to Chatswood Rail Link.

Professional Development

Mark has a Masters in Geotechnical Engineering from the University of New South Wales (UNSW) where he also lectures part-time in postgraduate studies at the School of Mining and School of Civil Engineering, in mine slope stability and aspects of engineering geology. Mark is actively involved in international technical conferences including, Co-Chairing FMGM2015, and presenting the Managing Unstable Slopes workshop through the Australian Centre of Geomechanics.


Mark specialises in geological and geotechnical studies for open pit mines and large civil projects. Areas of expertise include:

  • Engineering geology
  • Hydrogeology
  • Monitoring and Instrumentation
  • Open-pit slope design
  • Assessment and management of slope instabilities
  • Engineering geological models and support estimates for hard rock tunnels
  • Hydrogeological investigation for depressurisation of slopes.