Carl M Wentworth

Carl, an emeritus research geologist with the Geology, Minerals, Energy, and Geophysics Science Center, is continuing a varied career that has included geologic mapping, geologic safety of nuclear power reactors, tectonic studies combining geology and geophysics, landslide hazards, and Quaternary stratigraphy and tectonics. He holds Ph.D. and M.S. degrees in Earth Science from Stanford University.


Carl obtained a Ph.D. degree from Stanford University in 1967, having joined the U.S. Geological Survey full time in Menlo Park, CA, in 1963. He retired in 2004 and has continued in emeritus status in the Menlo Park, CA, office since. His work over the past 55 years, mostly in California, has involved geologic mapping; study of landslide, fault and earthquake hazards; management of a national research program on hazards to power reactors; investigation of crustal structure using deep reflection profiling; study of a deep Quaternary basin and its cyclic record of climate variation; and study of the Franciscan Complex and its tectonostratigraphic terranes.


  • Ph.D., Earth Science, Stanford University, 1967
  • M.S., Earth Science, Stanford University, 1960
  • B. A., Geology, Dartmouth College, 1958

Professional Studies/Experience

  • 2004 – present, Emeritus Research Geologist, U.S. Geological Survey, Menlo Park, California
  • 1979 - 2003, Research Geologist, U.S. Geological Survey, Menlo Park, California
  • 1974 - 1978, U.S. Geological Survey, Program Manager, Reactor Hazards Research Program
  • 1963 - 1973, Research Geologist, US Geological Survey, Menlo Park, California
  • 1963 - field assistant to Director Tom Nolan, Eureka, Nevada, US Geological Survey
  • 1961 - 1962, Teaching Assistant, Stanford University
  • 1961 - field assistant, Franciscan assemblage, California, U.S. Geological Survey
  • 1960 - Junior Geologist, Nevada, Shell Oil Company
  • 1958 - Junior Geologist, Socony Mobil Oil Company (Anaco, Venezuela)
  • 1957 - field assistant, South Dakota, U.S. Geological Survey

Professional societies/affiliations/committees/editorial boards

  • American Association for the Advancement of Science (AAAS)
  • Geological Society of America (Fellow)