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ACKNOWLEDGMENTS Ivy-Ochs, S., and Kober, F., 2008, Surface exposure dating with cosmogenic GSA TODAY | www.geosociety.org/gsatoday
nuclides: Quaternary Science Journal, v. 57, p. 197–209.
We are indebted to Wayne Hamilton and Dave Sharrow for many
motivating and fruitful discussions. Johnny Sanders provided valu- Ivy-Ochs, S., Kerschner, H., Reuther, A., Maisch, M., Sailer, R., Schaefer, J.,
able input on our text; Greg McDonald, Tyler Knudsen, and Ali Kubik, P.W., Synal, H.A., and Schlüchter, C., 2006, The timing of glacier
Sherman helped in the field. This study was funded in part by the advances in the northern European Alps based on surface exposure dating
David and Inga Chapman Fund. Comments from Jeff Coe and two with cosmogenic 10Be, 26Al, 36Cl, and 21Ne, in Siame, L.L., Bourlès, D.L.,
anonymous reviewers are greatly appreciated. and Brown, E.T. eds., In Situ-Produced Cosmogenic Nuclides and
Quantification of Geological Processes: Geological Society of America
REFERENCES CITED Special Paper 415, p. 43–60, doi: 10.1130/2006.2415(04).
Aaron, J., and Hungr, O., 2014, Simulation of the motion of semi-coherent Jibson, R.W., Harp, E.L., Schulz, W., and Keefer, D.K., 2006, Large rock
landslides, in Geohazards 6: 6th Canadian GeoHazards Conference, avalanches triggered by the M7.9 Denali Fault, Alaska, earthquake of
Kingston, Ontario, Canada. 3 November 2002: Engineering Geology, v. 83, p. 144–160, doi: 10.1016/
j.enggeo.2005.06.029.
Andrews, E.D., 2000, Bed material transport in the Virgin River, Utah: Water
Resources Research, v. 36, p. 585–596, doi: 10.1029/1999WR900257. Korup, O., 2006, Rock-slope failure and the river long profile: Geology, v. 34,
p. 45–48, doi: 10.1130/G21959.1.
Balco, G., Stone, J.O., Lifton, N.A., and Dunai, T.J., 2008, A complete and easily
accessible means of calculating surface exposure ages or erosion rates from Korup, O., Densmore, A.L., and Schlunegger, F., 2010, The role of landslides in
Be-10 and Al-26 measurements: Quaternary Geochronology, v. 3, p. 174– mountain range evolution: Geomorphology, v. 120, p. 77–90, doi: 10.1016/
195, doi: 10.1016/j.quageo.2007.12.001. j.geomorph.2009.09.017.
Balco, G., Briner, J., Finkel, R.C., Rayburn, J.A., Ridge, J.C., and Schaefer, J.M., Lal, D., 1991, Cosmic ray labeling of erosion surfaces: In-situ nuclide production
2009, Regional beryllium-10 production rate calibrations for late-glacial rates and erosion models: Earth and Planetary Science Letters, v. 104,
northeastern North America: Quaternary Geochronology, v. 4, p. 93–107, p. 424–439, doi: 10.1016/0012-821X(91)90220-C.
doi: 10.1016/j.quageo.2008.09.001.
Lucas, A., Mangeney, A., and Ampuero, J.P., 2014, Frictional velocity-weakening
Christl, M., Vockenhuber, C., Kubik, P.W., Wacker, L., Lachner, J., Alfimov, V., in landslides on Earth and on other planetary bodies: Nature
and Synal, H.A., 2013, The ETH Zurich AMS facilities: Performance Communications, v. 5, doi: 10.1038/ncomms4417.
parameters and reference materials: Nuclear Instruments & Methods in
Physics Research. Section B, Beam Interactions with Materials and Atoms, Lund, W.R., Knudsen, T.R., and Sharrow, D.L., 2010, Geologic hazards of the
v. 294, p. 29–38, doi: 10.1016/j.nimb.2012.03.004. Zion National Park geologic hazard study area, Washington and Kane
Counties, Utah: Utah Geological Survey Special Study 133, 97 p.
Crosta, G.B., Chen, H., and Lee, C.F., 2004, Replay of the 1987 Val Pola
landslide, Italian Alps: Geomorphology, v. 60, p. 127–146, doi: 10.1016/ McDougall, S., and Hungr, O., 2004, A model for the analysis of rapid landslide
j.geomorph.2003.07.015. motion across three-dimensional terrain: Canadian Geotechnical Journal,
v. 41, p. 1084–1097, doi: 10.1139/t04-052.
Doelling, H.H., Willis, G.C., Solomon, B.J., Sable, E.G., Hamilton, W.L., and
Naylor II, L.P., 2002, Interim Geologic Map of the Springdale East Nielsen, G., Chan, M.A., and Petersen, E.U., 2009, Diagenetic coloration facies
Quadrangle, Washington County, Utah: Utah Geological Survey Open and alteration history of the Jurassic Navajo Sandstone, Zion National
File-Report 393, 23 p. Park and vicinity, southwestern Utah, in Tripp, B.T., Krahulec, K., and
Jordan, J.L., eds., Geology and Geological Resources and Issues of Western
Dunning, S.A., Mitchell, W.A., Rosser, N.J., and Petley, D.N., 2007, The Hattian Utah: Utah Geological Association Publication 38, p. 67–96.
Bala rock avalanche and associated landslides triggered by the Kashmir
earthquake of 8 October 2005: Engineering Geology, v. 93, p. 130–144, Pankow, K.L., Moore, J.R., Hale, J.M., Koper, K.D., Kubacki, T., Whidden,
doi: 10.1016/j.enggeo.2007.07.003. K.M., and McCarter, M.K., 2014, Massive landslide at Utah copper
mine generates wealth of geophysical data: GSA Today, v. 24, p. 4–9,
Grater, R.K., 1945, Landslide in Zion Canyon, Zion National Park, Utah: The doi: 10.1130/GSATG191A.1.
Journal of Geology, v. 53, p. 116–124, doi: 10.1086/625254.
Reimer, P.J., and 28 others, 2013, IntCal13 and Marine13 radiocarbon age
Hamilton, W.L., 1976, Holocene and Pleistocene lakes in Zion National Park, calibration curves 0–50,000 years cal BP: Radiocarbon, v. 55, p. 1869–
Utah: Proceedings of the First Conference on Scientific Research in the 1887, doi: 10.2458/azu_js_rc.55.16947.
National Parks, New Orleans, Louisiana, USA, p. 835–843.
Stenner, H.D., Lund, W.R., Pearthree, P.A., and Everitt, B.L., 1999,
Hamilton, W.L., 2014, Ancient lakes of Zion National Park, in MacLean, J.S., Paleoseismologic investigations of the Hurricane fault in northwestern
Biek, R.F., and Huntoon, J.E., eds., Geology of Utah’s Far South: Utah Arizona and southwestern Utah: Arizona Geological Survey Open-File
Geological Association Publication, v. 43, p. 1–23. Report 99-8 (rev. 2005), 137 p.
Hewitt, K., Gosse, J., and Clague, J., 2011, Rock avalanches and the pace of late Stone, J.O., 2000, Air pressure and cosmogenic isotope production: Journal
Quaternary development of river valleys in the Karakoram Himalaya: GSA of Geophysical Research, v. 105, p. 23,753–23,759, doi: 10.1029/
Bulletin, v. 123, p. 1836–1850, doi: 10.1130/B30341.1. 2000JB900181.
Hungr, O., and Evans, S.G., 1996, Rock avalanche runout prediction using a U.S. Geological Survey, 2014, Water-resources data for the United States, Water
dynamic model: Proceedings of the 7th International Symposium on year 2013: U.S. Geological Survey Water-Data Report WDR-US-2013, site
Landslides, Trondheim, Norway, p. 233–238. 09405500, 3 p.
Hungr, O., and Evans, S.G., 2004, Entrainment of debris in rock avalanches: An Manuscript received 12 Oct. 2015; accepted 11 Jan. 2016. q
analysis of a long runout mechanism: GSA Bulletin, v. 116, p. 1240–1252,
doi: 10.1130/B25362.1.
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