Trip 2. To Fort Mason and Subducted

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Constance Robbins
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1 73 Trip 1. A Streetcar to Subduction Trip 2. To Fort Mason and Subducted

2 74 Trip 3. Baker's Beach and Fort Point' A Trip to Melange and Serpentine Trip 4. A Sedentary Survey of the Structure of the City (With Side Trips

3 Trip 5. Marin Headlands' Pillow Basalt and Chert Trip 6. A Boat Trip to the Blueschist Facies: Angel Island and the Metamorphosed

4 76 Trip 7. After Subduction Is Over' A BART Trip to a Transform

CLYDE WAHRHAFTIG, Professor of Geology Emeritus at the University of California, is a native Californian, born in Fresno in 1919.

5 CLYDE WAHRHAFTIG, Professor of Geology Emeritus at the University of California, is a native Californian, born in Fresno in He graduated from the California Institute of Technology in 1941 and received his M.A. and Ph.D. from Harvard University. From 1942 to 1980 he investigated geology in Alaska for the U.S. Geological Survey, mainly coal resources in the Central Alaska range. That work produced many governmental books and maps, of which he is the sole or senior author, on the geology and coal deposits of the Alaska range and on the physiography of Alaska, as well as journal articles on rock glaciers. Between 1960 and 1982 he taught courses in geomorphology, Quaternary geology, and field geology at the University of California, Berkeley, but retained his connection with the U.S. Geological Survey. Publications of that period include several papers on California geology, and he received the Kirk Bryan Award from the Geological Society of America in 1967 for his research on the geomorphology of the Sierra Nevada. He was a coauthor of two textbooks: The Earth, An Introduction to Physical Geology, by J. Verhoogen and others (Holt, Reinhardt, and Winston 1970) and The Earth and Human Affairs, by L. LaPorte and others (Canfield Press 1974). He retired from teaching in 1982 and now spends most of his.professional time at the U.S. Geological Survey. Current projects include studies on glacial and igneous geology in the Sierra Nevada, and the structure of the Marin headlands. Guiding others to points of geological interest is one of his fa- vorite activities, and he has led field trips in Alaska, California, and Nevada for a number of scientific and professional organizations. He has also been active in two areas where earth science and public policy interact. He was chairman or member of several national committees to encourage recruitment of minority geoscientists, and the trip to the Hayward Fault is an outgrowth of that work for the American Geophysical Union. He was also fir.st chairman of the Geological Society of America's committee on environment and public policy, and he has been active professionally in environmental matters in California and nationally, most recently as a member of the California State Board of Forestry from 1975 to His enthusiasm for public transportation stems in part from having never learned to drive. When asked how he managed to survive in California without that critical skill, he replied, "When I was a teenager my father, a doctor, had to repair too many of my schoolmates involved in automobile accidents and would not allow me to drive. In college I was too poor to afford a car, and where I worked in Alaska there were no roads. When I returned to live in California in 1950, I realized the advantages to health, safety, and sanity in not knowing how to drive, and managed to get around on foot and public transportation, or by sponging on my friends." He lives in San Francisco in a cottage perched on a chert outcrop not far from the line of the "Streetcar to Subduction." ISBN: American Geophysical

Department of Geosciences. Geology Meteorology Oceanography

Department of Geosciences. Geology Meteorology Oceanography Department of Geosciences Geology Meteorology Oceanography Geoscientists study the earth Rivers Soils Lake sediments Evidence of ancient oceans Maps Volcanoes Fence offset by San Andreas fault Water quality