(a complete list will be provided here later)
This is a collection of some of the more significant papers Doc Bonilla wrote in the last forty years. Many of these were reproduced from Doc’s original manuscripts typed on an old Selectric and from original illustrations drawn on frosted Mylar with a Rapidograph.
George Schlocker’s comments about the first of these papers:
…The [1964] paper was the 3rd and last report Doc Bonilla and I prepared in a great hurry to present to the AEC at a meeting in Washington. It was on the engineering geology of the nuclear reactor site proposed by PG&E at Bodega Bay. As you know we included in it a plan map of the faults and joints we observed in what was called the Shaft, a hole the reactor was to be built in. Doc and I mapped the geology of the hole as it was excavated 24 hour a day. We sometimes observed 20 hours a day and a PG&E geologist gave us data for the hours that we slept. We found a prominent fault we named the “Shaft Fault” that offset black beds of flora on the south wall of the hole and followed it down in Pleistocene sediments for about 90 feet on the wall and on the floor of the hole. So we had three-dimensional geometry of the fault. We also followed it on the surface south of the hole. The excavation reached the underlying granitic rock at night. I was very emotional about seeing that the Shaft Fault in the sediments passed into the granitic rock as a shear zone a foot or so wide. At the final depth we had the workers water-wash the granitic rock floor with a high-pressure hose and we saw an offset by the Shaft Fault of a leucogranite dike. We had excellent cooperation of PG&E and their construction contractor in mapping the Shaft Fault. The operator of the excavating equipment would halt his digging and put the bulldozer blade where we wanted it so we could see the fault. We were able to map the fault in great detail by measuring from the I-beams at the walls of the hole at various depths. The paper is a “classic”, I guess, because it may be the first one to show details of faults at a proposed nuclear reactor site. In it we gave some guesses on the possibilities and probabilities of offsets at the reactor site.
Bonilla, M.G., 1970, Surface faulting and related effects, in Wiegel, R. L., ed., Earthquake Engineering, Englewood Cliffs, N. J., Prentice-Hall, p. 47-74.
Bonilla, M.G., and Buchanan, Jane M., 1970, Interim report on worldwide historic surface faulting: U.S. Geological Survey open-file report 1611, 32 p. (URL http://pubs.usgs.gov/of/1970/of1611/). Bonilla, M.G., 1975, A review of recently active faults in Taiwan: U.S. Geological Survey Open-File Report 75-41, 42 p. (URL http://pubs.usgs.gov/of/1975/of75-41/). Bonilla, M.G., 1979, Historic surface faulting --map patterns, relation to subsurface faulting, and relation to preexisting faults, in Proceedings of Conference VIII, Analysis of Actual Fault Zones in Bedrock, 1-5 April 1979: U.S. Geological Survey Open-File Report 79-1239, p. 36-65 (URL http://pubs.usgs.gov/of/1979/of79-1239/). Bonilla, M.G., 1982, Evaluation of potential surface faulting and other tectonic deformation: U.S. Geological Survey Open-File Report 82-732, 58 p.; also U.S. Nuclear Regulatory Commission Report NUREG/CR-2991 (URL http://pubs.usgs.gov/of/1982/of82-732/). Bonilla, M.G., Mark, R.K., and Lienkaemper, J.J., 1984, Statistical relations among earthquake magnitude, surface rupture length, and surface fault displacement: U.S. Geological Survey Open-File Report 84-256, 37 p., 21 figs. (URL http://pubs.usgs.gov/of/1984/of84-256/). Bonilla, M.G., 1988, Minimum earthquake magnitude associated with coseismic surface faulting: Association of Engineering Geologists Bulletin, v. 25, no. 1, p. 17-29. (URL www.diggles.com/mbonilla/bonilla_1988.pdf) (PDF: 130 KB). Bonilla, M.G., and Lienkaemper, J.J., 1990, Visibility of Fault Strands in Exploratory Trenches and Timing of Rupture Events: Geology, v. 18, p. 153-156, February 1990 (URL http://www.diggles.com/mbonilla/b_and_l_1990.pdf) (PDF: 150 KB). Bonilla, M.G., 1991, Faulting and seismic activity, in Kiersch, G.A., ed., The heritage of engineering geology; the first hundred years: Boulder, Colorado, Geological Society of America, Centennial Special Volume 3, p. 251-264 (URL http://www.diggles.com/mbonilla/bonilla_1991.pdf) (PDF: 12.2 MB).Bonilla, M.G., and Lienkaemper, J.J., 1991, Factors affecting the recognition of faults exposed in exploratory trenches: U.S. Geological Survey Bulletin 1947, 54 p.
Bonilla, M.G., 1998, Preliminary geologic map of the San Francisco South 7.5’ quadrangle and part of the Hunters Point 7.5’ quadrangle, San Francisco Bay Area, California: U.S. Geological Survey Open- File Report 98-354, scale 1:24,000 (URL http://pubs.usgs.gov/of/1998/of98-354/). Bonilla, M.G., 1999, A Note on Historic and Quaternary Faults in Western Taiwan: U.S. Geological Survey Open-File Report OF 99-447, 5 p. (URL http://pubs.usgs.gov/of/1999/of99-447/).Last updated: December 2, 2005 (mfd)
