b'PeopleNewsVale: Professor Keeva Vozoff (19282019)Keeva developed magnetotellurics while at the Massachusetts Institute of Technology (MIT) and subsequently branched into induced polarisation and 3D modelling, leading pioneering work on inversion techniques. He produced his famous publications on joint inversion with David Jupp at Macquarie University in the 1970s. In subsequent years he used controlled-source EM to map carbonate hydrocarbon saturation changes, and applied CSEM (Long-offset transient electromagnetic depth soundings - LOTEM) to reservoir monitoring. He was always integrating disciplines, methods and teams, and was well known for his synergistic approach to bringing about new thinking and ideas. He ventured into seismic several times; in the 1950s at MIT he wrote one of the first computer programmes to compute seismic dispersion curves in a horizontally stratified medium and later, in the 1980s, he guided his group at Macquarie into in-seam seismic.Keeva established the Centre for Geophysical Exploration Research (CGER), with his characteristic drive and enthusiasm, at Macquarie University in 1981. This institution was unique in Australia at the time. Keeva led the Centre for a decade and his leadership Professor Keeva Vozoff and extraordinary contributions to the Centres research, innovative teaching Professor Keeva Vozoff, a legend inSEG and ASEG positions. He wasand industry workshop programmes are geophysics, passed away on June 25awarded SEG Honorary Membershipamongst his greatest achievements.2019 in Sydney, Australia at the age of 91,in 1985, and, in 2009, the ReginaldKeevas students and colleagues after a long and active life. Fessenden Award for his work on 3Dremember him as someone who got Keeva was a pioneer of electricalelectromagnetic modelling. Keevaeveryone thinking creatively about new geophysics and an acknowledgedbecame a Member of the ASEG in 1972,solutions. His own ideas were usually authority on the subject. He was anafter arriving in Australia to take up thedecades ahead of his time. Over his outstanding educator and mentor toinaugural appointment of Professor ofprofessional career Keeva not only students and colleagues throughout hisGeophysics at Macquarie University.mentored his former students, but professional life and across the world. HeHe served on the ASEG Executivemany professional colleagues, and was was also an active contributor to nationalCommittee as Treasurer in 1975, andalways concerned about the impact and international scholarly journals, andthen as President in 1976. Keeva wasof professional decisions on private published several books. awarded ASEG Honorary Membership inlives. Unsurprisingly, in a recent ASEG 1989,for his distinguished contributionHistory interview, Keeva reflected that Keeva was born in Minnesota andto the profession of explorationhis interaction with colleagues was the obtained a degree in physics in 1949,geophysics through his research andmost satisfying part of his careerfollowed by an MSc in geophysics fromteaching.Pennsylvania State in 1951, and a PhDAfter his retirement in 1994 Keeva from MIT in 1956. Keeva was a ProfessorKeevas international engagementworked as a consultant, and was active at the University of Alberta, Canadaincluded serving on ad-hoc committeesuntil a few years ago. He even co-(195864), Macquarie University, Australiaof Soviet-Australia and Indo-Australiaauthored four patents, mostly applying (197294), the University of Californiascientific and technical cooperation fromhis integration concepts to borehole and (Berkeley, 197880), and at the University1974 to 1975. He was also an Honoraryreservoir applications.of Cologne, Germany (198996). Fellow of the Association of Exploration Geophysicists of India and, between 1992Although not an Australian by birth, Keeva Keeva was active in the SEG and theand 1993, an Alexander von Humboldthas always been one of the locals, and ASEG from the 1950s, and held variousFellow in Germany. would welcome each and every one of 11 PREVIEW OCTOBER 2019'