Mark is a geoscientist with worldwide experience in the interpretation of geophysical data. He has previously worked for ARK Geophysics, the Hawaiian Institute Geophysics and Planetology and acted as a consultant for a wide range of oil, gas and mining companies, advising them on their geophysical exploration challenges. His particular expertise is in the application of potential field data to exploration. Mark has also written and presented a series of television and radio programmes in the US and UK on geoscience topics. He has a PhD and a DEA in Applied Geophysics.