William J. Hinze - 1991 Goldich Medal Recipient

William J. Hinze began his earth-science career at the University of Wisconsin, where in 1951 he received a bachelor of science in geology. From 1954 to 1955 he served in the US. Army Corps of Engineers at their Research and Development Laboratory, after which he returned to the University of Wisconsin, receiving his doctorate in geology and physics in 1957. From 1956 to 1958 he worked as a staff geophysicist for Jones & Laughlin Steel Company. In 1958 he joined the faculty of the department of geology at Michigan State University, where he held appointments of assistant to full professor. In 1972 he took his present post as pmfessor of geophysics in the Department of Earth and Atmospheric Sciences at Purdue University. In 1985 he served as a visiting professor at the University of Lausanne in Switzerland.

In the course of his career Hinze has made many significant and lasting contributions to potential-field geophysics. In addition to numerous abstracts and technical reports, he averages several formal papers per year, either as chief author or as co-author - truly remarkable record if his formidable professional duties are considered. For instance, from 1975 to 1982 he was chairman of the US. National Magnetic Anomaly Map Committee, and from 1985 to 1989 he co-chaired the North American Magnetic Anomaly Map Committee. He edited The Utility of Regional Gravity and Magnetic Anomaly Maps, which was published by the Society of Exploration Geophysicists in 1985. From 1986 to 1988 he co-chaired the US. National Science Foundation's joint U.S./Indian workshop "Regional Geophysical Lineaments: Their Tectonic and Economic Significance" and co-edited the workshop volume, which was published by the Geological Society of India in 1989. Since 1985 he has dealt with problems concerning the distribution and archiving of geophysical data for the worldwide scientific community and, related to this task, has served in various posts with the U.S. Geodynamics Committee, the International Lithospheric Commission, and the National Academy of Science/National Research Council. From 1988 to the present he has served as a consultant to and member of the Advisory Committee on Nuclear Waste of the Nuclear Regulatory Commission. He has served from 1986 both as a member and vice-chairman of the board of directors of Deep Observation and Sampling of the Earth's Continental Crust, Inc. (DOSECC), and as a co-chairman of the Potential Fields Committee of the Great Lakes International Program on Crustal Evolution (GLIMPCE). He has been a member of the US. Geodynamics Committee of the National Academy of Science/National Research Council since 1989.

During his long and successful career Hinze has been at the forefront of geophysical research in the Lake Superior region and the surrounding Midcontinent. His doctoral research, a gravity investigation of the Bamboo Syncline region, which was published in the Journal of Geology in 1959, was one of the most innovative gravity studies of its time. His 1960 Economic Geology paper on the gravity method in iron-ore exploration, which was largely based on his experiences with Jones & Laughlin Steel Company, became a classic work among explorationists; a slightly revised version reappeared in 1966 in the Society of Exploration Geophysicists' volumes on mining geophysics. During the 1960s Hinze was the principal investigator of several major aeromagnetic and gravity studies of the western Great Lakes, the Upper Peninsula of Michigan, and the Michigan Basin. The aeromagnetic studies over Lake Superior complemented the seismic investigations of the Lake Superior Experiment, and in 1966 the results were published with the seismic studies in the frequently cited The Earth Beneath the Continents (American Geophysical Union Geophysical Monograph 10). In 1982 R.J. Wold and he co-edited Geology and Tectonics of the Lake Superior Basin (Geological Society of America Memoir 156), which remains today the definitive reference on Lake Superior geology and geophysics. In recognition of his contributions to Midcontinent geology, he was awarded an honorary membership in the Michigan Basin Geological Society in 1986.

Today Hinze maintains his high profile in geophysical studies of the Lake Superior region. Since the mid-1970s he has been a leading investigator of Midcontinent seismicity and its probable relationship to basement structure. Through his involvement with DOSECC and other agencies, be has been a leading proponent of deep scientific drilling in the Lake Superior region. He and his students are presently conducting combined studies of seismic-reflection, gravity, and magnetic data to investigate crustal structure beneath Lake Superior, a task that epitomizes the strong generalist approach that characterizes his career.

Perhaps Bill Hinze's greatest legacy is his students. Through organizational skills that are unsurpassed and an enthusiasm for his work that is contagious, he has inspired many to learn and achieve far beyond what they thought they were capable. The careers of many successful geophysicists worldwide proudly bear his imprint. His is truly a career that has made a difference.
VAL W. CHANDLER Minnesota Geological Survey