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Ryan Gold

Research Geologist

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Short Biography

General research statement: My research focuses on using the surficial geologic record to understand lithospheric-scale deformation. I investigate Quaternary fault records by combining field-based structural and surficial mapping with high-resolution topographic datasets captured via land-based and remotely sensed topographic (e.g., LiDAR) and textural datasets. I quantify the rates of earth-surface processes using Quaternary geochronometers. I have experience conducting research in the western and central U.S, the Caribbean, the Indo-Asia Collision, and New Zealand.
 
Active research projects
 
·  Northern Walker Lane (California/Nevada) – Comparison of geologic and geodetic deformation rates in the northern Walker Lane. Use high-resolution airborne LiDAR (15-17 pts per sq-meter) to guide fault slip-rate studies, paleoseismic trenching investigations, and shallow seismic-reflection imaging.
·  Intraplate earthquakes (Central & Eastern United States, Rhine Graben) – Constrain the timing of prehistoric earthquakes in stable continental regions using LiDAR. Focus on primary (fault scarps) and secondary (landslides) tectonic features. ,
·  Altyn Tagh Fault (NW China/Tibet) - Constrain the slip history of the left-lateral Altyn Tagh fault through a combination of field-based topographic surveying, Quaternary mapping, and Quaternary Geochronology
·  Slip history modeling - Developing slip-history modeling tools to construct fault slip chronologies in the western US, Asia, and New Zealand
·  Paleoseismology - Constructing a paleoseismic slip records via traditional trenching approaches for the Enriquillo Garden Plantain fault (Haiti), Septentrional Fault (Dominican Republic), Kings Canyon fault (Nevada) and the Wasatch fault (Utah).
·  USGS Earthquake Response - I am also involved with USGS post-earthquake responses, for example to the January 2010 and September 2013 earthquakes in Haiti and Pakistan, respectively.
 
My research interests include:
·  rates of active strike-slip faulting
·  fault slip-histories
·  tectonic geomorphology
·  Quaternary geochronology (e.g., radiocarbon, u-series dating of pedogenic carbonates, & terrestrial cosmogenic radionuclides)
 
Ph.D., University of California, Davis, CA (2009): Latest Quaternary slip history along the central Altyn Tagh Fault, NW China.
M.S., University of California, Davis, CA (2006): Application of trishear fault-propagation folding to active reverse faults: examples from the Dalong Fault, Gansu Province, NW China.
B.A., Whitman College, Walla Walla, WA (2003): A comparative study of aerial photographs and LIDAR imagery for landslide detection in the Puget lowland, Washington.




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Published Papers:
Gold, R.D., Briggs, R.W., Personius, S.F., Crone, A.J., Mahan, S.A., and Angster, S.J., in press, Latest Quaternary paleoseismology and evidence of distributed dextral shear along the Mohawk Valley fault zone, northern Walker Lane, California: Journal of Geophysical Research: Solid Earth.
 
Gold, R.D., Stephenson, W. J., Odum, J. K., Briggs, R. W., Crone, A. J., and Angster, S. J., 2013, Concealed Quaternary strike-slip fault resolved with airborne LiDAR and seismic reflection: The Grizzly Valley fault system, northern Walker Lane, California: Journal of Geophysical Research: Solid Earth. doi: 10.1002/jgrb.50238.
 
Gold, R.D., dePolo, C. M., Briggs, R. W., Crone, A. J., and Gosse, J., 2013, Late Quaternary slip-rate variations along the Warm Springs Valley fault system, northern Walker Lane, California-Nevada border: Bulletin of the Seismological Society of America. v. 103, no 1., p. 542-558, doi: 10.1785/0120120020.
 
Cowgill, E., Bernardin, T., Oskin, M. E., Bowles, C., Yikilmaz, B., Kreylos, O., Elliot, A., Bishop, S., Gold, R. D., Morelan, A., Bawden, G. W., Hamann, B., and Kellogg, L. H., 2012, Interactive terrain visualization enables virtual fieldwork during rapid scientific response to the 2010 Haiti earthquake:Geosphere. v. 8, no. 4, p. 787-804, doi: 10.1130/GES00687.1.
 
Gold, P. O., Cowgill, E., Kreylos, O., and Gold, R. D., 2012, A terrestrial lidar-based workflow for determining three-dimensional slip vectors and associated uncertainties: Geosphere, v. 8, no. 2, p. 431-442, doi: 10.1130/GES00714.1.
 
Gold, R., Cowgill, E., Arrowsmith, J. R., Chen, X., Sharp, W. D., Cooper, K. M., and Wang, X. F. 2011, Faulted terrace risers place new constraints on the late Quaternary slip rate for the central Altyn Tagh Fault, northwest Tibet. Geological Society of America Bulletin, v. 123, no. 5-6, p. 958-978, doi:10.1130/B30207.1.
 
Gold, R., and Cowgill, E., 2011, Deriving fault-slip histories to test for secular variation in slip, with examples from the Kunlun and Awatere faults. Earth and Planetary Science Letters, v. 301, no. 1-2, p. 52-64, doi:10.1016/j.epsl.2010.10.011.
 
Prentice, C. S., Mann, P., Crone, A. J., Gold, R. D., Hudnut, K. W., Briggs, R. W., Koehler, R. D., and Jean, P., 2010, Seismic hazard of the Enriquillo-Plantain Garden fault in Haiti inferred from paleoseismology. Nature Geoscience, doi:10.1038/ngeo991.
 
Hayes, G. P., Briggs, R. W., Sladen, A., Fielding, E. J., Prentice, C., Hudnut, K., Mann, P., Taylor, F. W., Crone, A. J., Gold, R. D., Ito, T., and Simons, M., 2010, Complex rupture during the 12 January 2010 Haiti Earthquake. Nature Geoscience, doi:10.1038/ngeo977.
 
Cowgill, E., Gold, R., Xuanhua, C., Xiaofeng, W., Arrowsmith, J.R. & Southon, J. R., 2009, Resolving the slip-rate discrepancy along the longest active strike-slip fault in Tibet. Geology. v. 37, no. 7, p. 647-650, doi:10.1130/G25623A.1.
 
Gold, R., Cowgill, E., Arrowsmith, J. R., Gosse, J., Wang, X. & Chen, X., 2009, Riser diachroneity, lateral erosion, and uncertainty in rates of strike-slip faulting: A case study from Tuzidun along the Altyn Tagh Fault, NW China. Journal of Geophysical Research, B, Solid Earth and Planets. v. 114, B04401, doi:10.1029/2008JB005913.
 
Gold, R., Cowgill, E., Wang, X.F., and Chen, X., 2006, Application of trishear fault-propagation folding to active reverse faults: examples from the Dalong Fault, Gansu Province, NW China: Journal of Structural Geology, v. 28, p. 200-219, doi:10.1016/j.jsg.2005.10.006.
 
Bernardin, T., Cowgill, E., Gold, R., Hamann, B., Kreylos, O., and Schmitt, A., 2006, Interactive mapping on 3-D terrain models: Geochemistry Geophysics Geosystems, v. 7, doi:10.1029/2006GC001335.
 
 
Selected Abstracts:
Gold, R. D., Williams, R. A., Jibson, R.W., 2014 (planned), Are landslides in the New Madrid Seismic Zone the result of the 1811–1812 earthquake sequence or multiple prehistoric earthquakes?: Vienna, Austria, EGU General Assembly.
 
Gold, R. D., Briggs, R. W., Crone, A., 2013, Saptial and temporal variability in faulting along a Quaternary fault transect across the Northern Walker Lane, California-Neavada: Eos, Transaction: San Francisco, American Geophysical Union.
 
Williams, R.A., Gold, R. D., Jibson, R.W., LiDAR data reveal new details on seismically triggered landslides in the New Madrid Seismic Zone: Eos, Transaction: San Francisco, American Geophysical Union.
 
Gold, R. D., Briggs, R. W., Angster, S., Personius, S., Crone, A., 2013, Paleoseismic investigation of the Mohawk Valley fault system at the Sulphur Creek Sidehill Bench, northern Walker Lane, California: Salt Lake City, UT, SSA Annual Meeting.
 
Gold, R. D., Prentice, C. S., Crone, A. J., Briggs, R. W., Narcisse, R., 2012,  Evidence of multiple, prehistoric, ground-rupturing earthquakes along the Enriquillo-Plantain Garden Fault system near Port-au-Prince, Haiti: Eos, Transaction: San Francisco, American Geophysical Union.
 
Gold, R. D., Stephenson, W. J., Odum, J. K., Briggs, R. W., Crone, A., Worley, D., Allen, J., Angster, S., Bowden, D., 2012, High-resolution seismic-reflection imaging profiles across the Grizzly Valley fault system, northern Walker Lane, California: San Diego, CA, SSA Annual Meeting, Seismological Research Letters, v. 83, no. 2, pg 356.
 
Gold, R. D., C. M. dePolo, R. W. Briggs, and A. J. Crone, 2011, Suppressed post-15.8 ka slip rate along the Warm Springs Valley fault, northern Walker Lane, California-Nevada border: Eos, Transaction: San Francisco, American Geophysical Union.
 
Gold, R., 2011, Resolving fault slip records using terrestrial laser scanning: Seattle, WA, Association of American Geographers.
 
Gold, R., Cowgill, E., Arrowsmith, J.R., 2010, Mid Holocene earthquake cluster along the central Altyn Tagh Fault, NW China resolved through integration of morphochronologic datasets: Eos, Transaction: San Francisco, American Geophysical Union.
 
Gold, R., Cowgill, E., Crone, A. J., Briggs, R.W., Gold, P.O., Arrowsmith, J.R., 2010, Resolving “deep time” fault slip records using morphochronology and terrestrial laser scanning: Denver, CO. Geological Society of America Abstracts with Programs.
 
Gold, R., Cowgill, E., Arrowsmith, J. R., Chen, X., Sharp, W. D., Cooper, K. M., and Wang, X. F., 2009, Latest Quaternary slip history for the central Altyn Tagh Fault, NW China, derived from faulted terrace risers, Eos, Transaction, Volume 90: San Francisco, American Geophysical Union.
 
Gold, R., Cowgill, E., 2009, Derivation of “deep-time” fault-slip histories to test for secular variation in slip from dated and displaced landforms: Portland, OR. Geological Society of America Abstracts with Programs, v 41.
 
Gold, R., Cowgill, E., Arrowsmith, J.R., Gosse, J., Xuanhua, C., and Xiaofeng, W., 2008, Riser diachroneity, lateral erosion, and uncertainty in rates of strike-slip faulting: A case study from Tuzidun along the Altyn Tagh Fault, NW China, Joint Meeting of the Geological Society of America: Houston, TX. Geological Society of America Abstracts with Programs, v 40, p. 290.
 
Gold, R., Cowgill, E., Arrowsmith, J. R., Muretta, M., Gosse, J., Chen, X. & Wang, X., 2007. Holocene slip rate for the central Altyn Tagh Fault: Preliminary results from the Tuzidun site based on 14C and 10Be dating of a displaced fluvial terrace riser. Eos, Transaction, Volume 88: San Francisco,American Geophysical Union.
 
Gold, P., Gold, R., Cowgill, E., Kreylos, O., and Hamann, B., 2007, Efficient, Off-Grid LiDAR Scanning of Remote Field Sites, Eos, Transaction, Volume 88: San Francisco, American Geophysical Union.
 
Gold, R., Cowgill, E., Chen, X., and Wang, X., 2006, Holocene slip rate for the central Altyn Tagh Fault: Preliminary results from the Yue Ma Ke Qi site using displaced fluvial risers and 14C geochronology, Eos, Transaction, Volume 87: San Francisco, American Geophysical Union.
 
Gold, R., Cowgill, E., Wang, X.-F., and Chen, X., 2006, Rate of active shortening across the Aksai restraining stepover along the Altyn Tagh Fault, Gansu Province, NW China, Abstracts with Programs, Geological Society of America Abstracts with Programs, v. 38 ,p. 239.
 
Gold, R., Cowgill, E., Wang, X.F., and Chen, X., 2004, Strike-slip fault evolution at intermediate (10 ka - 1 Ma) timescales: an example from the Aksai restraining stepover along the Altyn Tagh fault, NW China, Eos, Transactions, Volume 85: San Francisco, American Geophysical Union.
 
Gold, R., Wegmann, K., Palmer, S., Carson, R., and Spencer, P., 2003, A comparative study of aerial photographs and LIDAR imagery for landslide detection in the Puget Lowland, Washington: Geological Society of America Abstracts with Programs, v. 35, p. 12.



                           

My Science Topics


Science Topic
Subtopic
Natural Hazardsearthquake occurrences
Natural Hazardsearthquakes
Natural Hazardshazards
Natural Hazardsearthquake probabilities



My USGS Science Strategy Areas

A National Hazard, Risk, and Resilience Assessment Program

Contact Information

Ryan Gold
1711 Illinois Street
Golden, CO 80401-1435
303-273-8633
303-273-8600 - Fax
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