Ray J. Weldon II
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Publications

  • Weldon, R. J. , Fumal, T. E., Biasi, G. P., and Scharer, K. M., in press, Integrating paleoseismic sites into complete ruptures on the southern San Andreas fault, Science.

  • Biasi, G. P., and Weldon, R. J., in press, Estimating surface rupture length and magnitude of paleoearthquakes from point measurements of rupture displacement, Bulletin of the Seismological Society of America.

  • Scharer, K. M., Burbank, D. W., Chen, J., and Weldon, R. J., in press, Detachment folds deform fluvial terraces: comparison of kinematic models and preserved terraces across the Kashi-Artushi fold system, Chinese Tian Shan, Bulletin of the Geological Society of America.

  • Weldon, R. J. , Dec.28, 2004, Big Tsunami hit Oregon in 1700 – and will again, Register Guard Newspaper, invited Editorial. [not peer reviewed]

  • Weldon, R. J. , Scharer, K. M., Fumal, T. E., and Biasi, G. P., 2004, Wrightwood and the earthquake cycle: what a long recurrence record tells us about how faults work, GSA Today, v. 14, 4-10.

  • Scharer, K. M., Burbank, D. W., Chen, J., Weldon, R. J., Rubin, C., Zhao, R., and Shen, J., 2004, Detachment folding in the southwest Tian Shan – Tarim foreland, Journal of Structural Geology, v. 26, 2119-2137.

  • Weldon, R. J. , Fumal, T. E., Powers, T. J., Pezzopane, S. K., Scharer, K. M., and Hamilton, J. C., 2002, Structure and earthquake offsets on the San Andreas fault at the Wrightwood, California paleoseismic site, Bulletin of the Seismological Society of America, v. 92, 2704-2725.

  • Weldon, R. J., Fletcher, D. K., Weldon, E. M., Scharer, K. M., and McCrory, P. A., 2002, An update of Quaternary faults of central and eastern Oregon, U.S. Geological Survey Open-File Report 02-301, 26 map sheets, scale 1:100,000, 1 CD-ROM.

  • Thompson, S. C., Weldon, R. J., Rubin, C. M., Abdrakhmatov, K.Ye., Molnar, P., and Berger, G. W., 2002, Late Quaternary slip rates across the central Tien Shan, Kyrgyzstan, Central Asia, Journal of Geophysical Research, v. 107, 2203, doi:10.1029/2001JB000596.

  • Biasi, G. P., Weldon, R. J., Fumal, T. E., and Seitz, G. G., 2002, Paleoseismic event dating and the conditional probability of large earthquakes on the Southern San Andreas fault, California, Bulletin of the Seismological Society of America, v. 92, p. 2761-2781.

  • Fumal, T. E., Weldon, R. J., Biasi, G. P., Dawson, T. E., Seitz, G. G., Frost, W. T., and Schwartz, D. P., 2002, Evidence for large earthquakes on the San Andreas fault at theWrightwood, California paleoseismic site: A.D. 500 to Present, Bulletin of the Seismological Society of America, v. 92, p. 2726-2760.

  • Abdrakhmatov, K.Ye., Weldon, R. J., Thompson, S. C., Burbank, D. W., Rubin, C. M., Miller, M., and Molnar, P., 2001, Onset, style and current deformation rate of shortening in the central Tien Shan, Kyrgyz Republic (published both in Russian and English), Geologia y Geofizika, v. 42, p. 1585-1609.

  • Abdrakhmatov, K. Ye., Thompson, S. C., Weldon, R. J., Delvaux, D., and Klerkx, J., 2001, Active faults of Tien Shan (in Russian), Nauka i novye tehnologyi (Science and New Technology), v. 2, p.22-28.

  • Langridge, R. M., Weldon R. J., Moya, J. C., and Suarez, G., 2000, Paleoseismology of the 1912 Acambay Earthquake and the Acambay-Tixmadeje Fault, Trans-Mexican Volcanic Belt, Journal of Geophysical Research, v. 105, p. 3019-3037.

  • Biasi, G. P., and Weldon, R. J., 2000, Paleoseismic date refinement and implications for seismic hazard estimation, Quaternary Geochronology Methods and Applications, American Geophysical Union Reference Shelf 4, Noller, J. S., et al., eds., p. 517 - 520.

  • Seitz, G., Biasi, G., and Weldon, R. J., 2000, An improved paleoseismic record of the San Andreas fault at Pitman Canyon, Quaternary Geochronology Methods and Applications, American Geophysical Union Reference Shelf 4, Noller, J. S., et al., eds., p. 563 - 566.

  • Seitz, G., Biasi, G., and Weldon, R., 1996, An improved paleoseismic record of the San Andreas Fault at Pitman Canyon, Geological Society of America, Special volume; Quaternary Geochronology: applications in Quaternary geology and paleoseismolgy, (Noller, Sowers, and Lettis, eds).

  • Biasi, G., and Weldon, R.J., 1996, Paleoseismic dtae refinement and implications for seismic hazard estimation, Geological Society of America, Special volume; Quaternary Geochronology: applications in Quaternary geology and paleoseismolgy, (Noller, Sowers, and Lettis, eds).

  • Seitz, G., Biasi, G., and Weldon, R., 1996, The Pitman Canyon paleoseismic record suggests a re-evaluation of San Andreas Fault segmentation, Proceedings of the Symposium on Paleoseismology, International Union for Quaternary Research XIV International Congress, Terra Nostra 2/95, eds., Michetti, A.M., and P.L. Hancock, Journal of Geodynamics.

  • Biasi, G., and Weldon, R.J., in review, Conditional probabilities of large earthquakes on the southern San Andreas Fault from paleoseismic evidence, Journal of Geophysical Research.

  • Weldon, R.J., McCalpin, J.P., and Rockwell, T.K., in press, The paleoseismology of strike-slip tectonic environments, Chapter 6, in, McCalpin, J.P., and Nelson, A., eds., Techniques in Paleoseismology [book].

  • Palmer, R., Weldon, R., Humphreys, E., and Saucier, F., 1995, Earthquake recurrence on the southern San Andreas modulated by fault-normal stress, GRL, v. 22, p. 535-538.

  • Humphreys, E. D., and Weldon, R. J., 1994, Deformation across the Western US: A local estimate of Pacific-North America transform deformation, Journal of Geophysical Research, v. 99, 19,975-20,010.

  • Mitchell, C.E., Vincent, P., and Weldon, R.J., and Richards, M.A., Present-day vertical deformation of the Cascadia margin, Pacific Northwest, United States, 1994, Journal of Geophysical Research, v. 99, p. 12,257-12,277.

  • Weldon, R., Sieh, K., Zhu, C., Han, Y., Yang, J., Robinson, S., 1994, Slip rate and recurrence interval of earthquakes on the Hong He (Red River) Fault, Yunnan, PRC, International Conference on Southeast Asian Tectonics, Hanoi, Vietnam, p. 244-248.

  • Seitz, G., and Weldon, R., 1994, The Paleoseismology of the southern San Andreas Fault at Pitman Canyon, San Bernardino, California, Geological Society of America, Cordilleran Section Guidebook, Trip 8, Geological Investigations of an Active Margin, eds., McGill, S.F., and T.M. Ross, p. 152-156.

  • Biasi, G., and Weldon, R.J., 1994, Quantitative refinement of calibrated C-14 distributions, Quaternary Research, v. 41, p. 1-18.

  • Weldon, R.J., 1993, Seismic hazard associated with the North Branch of the San Andreas Fault to the Seven Oaks Dam Site, Santa Ana River, California, for The US Army Corps of Engineers.

  • Weldon, R.J., Stimac, J.P., and Rymer, M.J., 1994, Stratigraphy and deformational history of the Mecca Hills, Geological Society of America, Cordilleran Section Guidebook, Trip 15, Geological Investigations of an Active Margin, eds., McGill, S.F., and T.M. Ross, p. 319-344.

  • Sheridan, J.M., and Weldon, R., and Thornton, C.A., 1994, Road Log, Geological Society of America, Cordilleran Section Guidebook, Trip 15, Geological Investigations of an Active Margin, eds., McGill, S.F., and T.M. Ross, p. 319-325.

  • Sheridan, J.M., and Weldon, R., 1994, Accommodation of compression in the Mecca Hills, California, Geological Society of America, Cordilleran Section Guidebook, Trip 15, Geological Investigations of an Active Margin, eds., McGill, S.F., and T.M. Ross, p. 330-336.

  • Boley, J.L., Stimac, J.P., Weldon, R., and Rymer, M.J., 1994, Stratigraphy and paleomagnetism of the Mecca and Indio Hills, Southern California Geological Society of America, Cordilleran Section Guidebook, Trip 15, Geological Investigations of an Active Margin, eds., McGill, S.F., and T.M. Ross, p. 336-344.

  • Pezzopane, S., and Weldon, R.J., 1993, Tectonic role of Holocene fault activity in Oregon, Tectonics, v. 12, p.1140-1169.

  • Weldon, R. J., Meisling, K. E., and Alexander, J., 1993, A Speculative history of the San Andreas fault in the central Transverse Ranges, in, Powell, R. E., Weldon, R. J., and Matti, J. eds., The San Andreas fault system; displacement, palinspastic reconstruction, and geologic evolution, Geological Society of America, Memoir 178, p. 161-178.

  • Fumal, T. E., Pezzopane, S. K., Weldon, R. J., and Schwartz, D. P., 1993, A 100-year recurrence interval for the San Andreas fault at Wrightwood, CA, Science, v. 259, p. 199-203.

  • Harrison, J.B.J., McFadden, L.D., and Weldon, R.J., 1993, Influence of colluvial deposition on rates of soil development in the Transverse Ranges, California, Israel Earth Science, v. 41, p. 139-154.

  • Weldon, R. J. II, Pezzopane, S. K., Stimac, J. P., McDowell, P. F., and Freidel, D. E., 1992, Guidebook to Active faulting in south-central Oregon, Fieldtrip #5, Geological Society of America Cordilleran Section Meeting, May 8-10, 1992.

  • Goldfinger, C., Kulm, L. D., Yeats, R. S., Mitchell, C., Weldon, R., Peterson, C., Darienzo, M., Grant, W., and Priest, G. R., 1992, Neotectonic map of the Oregon Continental margin and adjacent abyssal plain, DOGAMI Open-File Report 0-92-4.

  • Powell, R.E., and Weldon, R.J., 1992, Evolution of the San Andreas Fault, Annual Review of Earth and Planetary Sciences, v. 20, p. 431-468.

  • Miller, M. G., and Weldon, R. J., 1992, A lateral ramp origin for the north-trending segment of the Squaw Peak fault, Cajon Pass, California, Journal of Geophysical Research, v. 97, p. 5153-5165.

  • Saucier, F. J., Humphreys, E. D, and Weldon, R. J. II, 1992, Stress near geometrically complex strike-slip faults: application to the San Andreas fault at Cajon Pass, southern California, Journal of Geophysical Research, v. 97, p. 5081-5094.

  • Weldon, R.J., 1991, Active tectonic studies in the United States, 1987-1990, Reviews of Geophysics, Supplement (US National Report to the International Union of Geodesy & Geophysics), p. 890-906.