DRI / DIRECTORY / AMANDA KEEN-ZEBERT
Amanda Keen-Zebert Profile Photo
Dr. Amanda Keen-Zebert
Interim Director of Research Operations
Phone 
775-673-7434
E-Mail 
Amanda.Keen-Zebert@dri.edu
Campus 
Reno Campus
Full Resume / CV 
Download
Division 
Administration

Areas of Interest and Expertise

  • Geochronology
  • Luminescence dating techniques
  • OSL dating
  • Dates and Rates of Earth Surface Processes
  • Fluvial geomorphology
  • Quaternary geology and geomorphology
  • Critical Zone processes
  • Paleoclimate
  • Paleoenvironments
  • Floodplain reworking
  • Channel migration
  • Bedrock channels
  • Landscape Evolution
  • Surface processes

Keywords

OSL dating, luminescence, optically stimulated luminescence, thermoluminescence, geochronology, fluvial geomorphology, geomorphology, critical zone, surface processes, landscape evolution, Quaternary research, paleoclimate, paleoenvironment

 

Publications
2024
Langston, A., Marcotte, A., Neudorf, C., Rodrigues, K. D., Keen-Zebert, A. K. (2024). Interpreting depositional environments from modern floodplain sediments using optically stimulated luminescence, Boreas, n/a (n/a). John Wiley & Sons, Ltd, https://doi.org/10.1111/bor.12679

2023
Rodrigues, K. D., Keen-Zebert, A. K., Shepherd, S., Hudson, M., Bitting, C., Johnson, B., Langston, A. (2023). The role of lithology and climate on bedrock river incision and terrace development along the Buffalo National River, Arkansas, Quaternary Research, 1-15. Cambridge University Press

2022
Rodrigues, K. D., Huot, S., Keen-Zebert, A. K. (2022). Exploring the application of blue and red thermoluminescence for dating volcanic glasses, Radiation Measurements, 106731, Elsevier

2021
Lancaster, N., Bacon, S. N., Bullard, T. F., Neudorf, C.M., Keen-Zebert, A. K., Decker, D. L., Boggs, M. L. (2021). Tectonic, hydrogeologic, and climatic controls on Late Holocene dune formation, China Lake basin, Indian Wells Valley, California, USA, Quaternary Research, 1-17, 10.1017/qua.2021.62

2020
Bacon, S. N., Bullard, T. F., Keen-Zebert, A. K., Jayko, A. S., Decker, D. L. (2020). Spatiotemporal patterns of distributed slip in southern Owens Valley indicated by deformation of late Pleistocene shorelines, eastern California, Geological Society of America Bulletin, 132 (7/8), 1681-1703, 10.1130/B35247.1

2019
Davis, L. G., Madsen, D. B., Valdivia, L. B., Higham, T., Sisson, D. A., Skinner, S. M., Stueber, D., Nyers, A. J., Keen-Zebert, A. K., Neudorf, C.M., Cheyney, M., Izuho, M., Iizuka, F., Burns, S. R., Epps, C. W., Willis, S. C., Buvit, I. (2019). Late Upper Paleolithic occupation at Cooper’s Ferry, Idaho, USA shows Americas settled before ~16,000 years ago, Science, 365, 891-897

2018
Furbish, D. J., Roering, J. J., Keen-Zebert, A. K., Almond, P., Doane, T. H., Schumer, R. (2018). Soil Particle Transport and Mixing Near a Hillslope Crest: 2. Cosmogenic Nuclide and Optically Stimulated Luminescence Tracers, Journal of Geophysical Research: Earth Surface, 123 (5), 1078-1093

Furbish, D., Schumer, R., Keen-Zebert, A. K. (2018). The rarefied (non-continuum) conditions of tracer particle transport in soils, with implications for assessing the intensity and depth dependence of mixing from geochronology, Earth Surface Dynamics, 6 (4), 1169-1202

Williams, T., Collins, M., Rodrigues, K. D., Rink, W., Velchoff, N., Keen-Zebert, A. K., Gilmer, A., Frederick, C., Ayala, S., Prewitt, E. (2018). Evidence of an early projectile point technology in North America at the Gault Site, Texas, USA, Science advances, 4 (7), eaar5954. American Association for the Advancement of Science

Furbish, D. J., Roering, J. J., Keen-Zebert, A. K., Almond, P., Doane, T. H., Schumer, R. (2018). Soil particle transport and mixing near a hillslope crest: 2. Cosmogenic nuclide and optically stimulated luminescence tracers, Journal of Geophysical Research: Earth Surface, 123 (5), 1078-1093

2017
Keen-Zebert, A. K., Hudson, M., Shepherd, S., Thaler, E. (2017). The effect of lithology on valley width, terrace distribution, and bedload provenance in a tectonically stable catchment with flat-lying stratigraphy, Earth Surface Processes and Landforms, 10.1002/esp.4116

Larkin, Z., Tooth, S., Ralph, T., Duller, G., McCarthy, T., Keen-Zebert, A. K., Humphries, M. (2017). Timescales, mechanisms, and controls of incisional avulsions in floodplain wetlands: Insights from the Tshwane River, semiarid South Africa, Geomorphology, 283, 158-172, 10.1016/j.geomorph.2017.01.021
https://www.sciencedirect.com/science/article/pii/S0169555X1630561X

Beeson, H., McCoy, S., Keen-Zebert, A. K. (2017). Geometric disequilibrium of river basins produces long-lived transient landscapes, Earth and Planetary Science Letters, 475, 34-43, https://doi.org/10.1016/j.epsl.2017.07.010
https://www.sciencedirect.com/science/article/pii/S0012821X17303886

2016
Nicoll, K., Keen-Zebert, A. K. (2016). Initial Chronological Determinations at an Archaic Site Discovered near Stockton, Utah, Journal of Archaeological Science: Reports, 6, 418-423, 10.1016/j.jasrep.2016.02.026

Rodrigues, K. D., Rink, W. J., Collins, M. B., Williams, T. J., Keen-Zebert, A. K., Lopez, G. I. (2016). OSL Ages of the Clovis, Late Paleoindian and Archaic Components at Area 15 of the Gault Site, Central Texas, U.S.A., Journal of Archaeological Sciences, 7, 94-103, 10.1016/j.jasrep.2016.03.014

Keen-Zebert, A. K., Tooth, S., Stuart, F. (2016). Cosmogenic 3He Measurements Provide Insight on Lithological Controls on Bedrock River Incision and Valley Formation: An Example from the South African Interior, Journal of Geology, 124, 423-434, 10.1086/685506

Beeson, H. W., McCoy, S., Keen-Zebert, A. K. (2016). Drainage Area Exchange Between River Basins Produces Long-Lived Transient Landscapes, Geological Society of America Abstracts with Programs, 48. GSA Annual Meeting: Denver, CO, 10.1130/abs/2016AM-287955

Keen-Zebert, A. K., Granger, D. E., Paces, J. B., Hudson, M. R. (2016). Combined Use of Cosmogenic Nuclide, U-Series Disequilibrium, Paleomagnetism, and Optically Stimulated Luminescence within Fitton Cave to Evaluate the Landscape Evolution of the Buffalo National River, Arkansas, Geological Society of America Abstracts with Programs, 48. GSA Annual Meeting: Denver, CO, 10.1130/abs/2016AM-287955

2015
Keen-Zebert, A. K., Baker, S. E. (2015). Luminescence dating of sediment from sand dunes at Antioch Dunes National Wildlife Reserve. California State University, Stanislaus.

Keen-Zebert, A. K., Baker, S. E., Adams, K. D., Bacon, S. N. (2015). Luminescence dating of sediment from beach deposits of the Pleistocene highstand of Owens Lake: DRI

Keen-Zebert, A. K., Baker, S. E. (2015). Luminescence dating results: Trench 2, Anderson Dam, Morgan Hill, CA. l

Keen-Zebert, A. K., Baker, S. E. (2015). Luminescence dating of sediment from the City of San Francisco’s southeast water pollution control plant building 521 replacement project.

Keen-Zebert, A. K., Baker, S. E. (2015). Luminescence dating of sediment from the Stockton Bar, Salt Lake City, Utah.

Keen-Zebert, A. K. (2015). Luminescence, Fluvial SedimentsChapter : . In Rink, W. J., Thompson, J. W. (Eds.), Encyclopedia of Scientific Dating Methods, 465-469. Springer-Verlag: Berlin-Heidelberg, 10.1007/978-94-007-6326-5_3-1

2014
Tooth, S., McCarthy, T., Rodnight, H., Keen-Zebert, A. K., Rowberry, M., Brandt, D. (2014). Late Holocene Development of a Major Fluvial Discontinuity in Floodplain Wetlands of the Blood River, Eastern South Africa, Geomorphology, 205, 128-141, 10.1016/j.geomorph.2011.12.045

Keen-Zebert, A. K. (2014). Luminescence Dating of Sediment from Sand Dunes at the San Francisco Peninsula, California

2013
Keen-Zebert, A. K., Tooth, S., Rodnight, H., Duller, G.A.T., Roberts, H. R., Grenfell, M. (2013). Late Quaternary Floodplain Reworking and the Preservation of Alluvial Sedimentary Archives in Unconfined and Confined River Valleys in the Eastern Interior of South Africa, Geomorphology, 185, 54-66, 10.1016/j.geomorph.2012.12.004

2011
Keen-Zebert, A. K., Tooth, S., Grenfell, M. (2011). Floodplain Chronology of the Stillerust Vlei, Mooi River Floodplain Wetland, in Western KwaZulu-Natal, South AfricaChapter : . In Bierman, P., Montgomery, D. (Eds.), Key Concepts in Geomorphology, Vignettes. Science Education Resource Center, Carleton College: Northfield, MN

Keen-Zebert, A. K., Shepherd, S. (2011). Effects of Urbanization on Stream Morphology in the Illinois River Watershed, ARChapter : . In , Key Concepts in Geomorphology, Vignettes. Science Education Resource Center, Carleton College: Northfield, MN

2009
Keen-Zebert, A. K., Curran, J. C. (2009). Regional and local controls on the spatial distribution of bedrock reaches in the Upper Guadalupe River, Texas, Geomorphology, 112, 295-305, 10.1016/j.geomorph.2009.06.017

Keen-Zebert, A. K. (2009). Steel CreekChapter : . In Hayes, R. (Ed.), Thoreau’s Legacy, American Stories of Global Change. Penguin Classics: Cambridge, MA

2007
Keen-Zebert, A. K. (2007). Channel Response to Precipitation in Urban Catchments: Scull and Mud Creeks in Fayetteville, Arkansas, Physical Geography, 28 (3), 249-260, 10.2747/0272-3646.28.3.249

Conference Proceedings
2023
Bristow, C., Lancaster, N., Alramadan, K. A., Neudorf, C.M., Keen-Zebert, A. K. (2023). Late Pleistocene and Holocene dune accumulation in the Shaybah area, eastern Saudi Arabia. XXI INQUA Congress 2023: Rome, Italy, July 14, 2023-July 20, 2023

2022
Krause, A., McKinney, E., Marshall, J., White, C. J., Hamel, J., Miller, C. N., Litchfield, N. J., Wang, N., Neudorf, C.M., Keen-Zebert, A. K. (2022). Geochronology of uplifted late Pleistocene coastal terraces, Cape Kidnappers and Riversdale Beach, Hikurangi Subduction Margin, North Island, New Zealand, GSA Connects 2022: Denver, CO, October 9, 2022-October 12, 2022

2021
Rodrigues, K. D., Keen-Zebert, A. K., Huot, S. (2021). Exploring the use of luminescence techniques for dating volcanic glasses. Luminescence and Electron Spin Resonance Dating (LED) 16th Annual Conference, September 13, 2021-September 17, 2021

2019
Neudorf, C.M., Quinn, D., Keen-Zebert, A. K. (2019). SPARROW – An open-source laboratory information management system focused on geochronology. 13th New World Luminescence Dating Workshop (NWLDW): Urbana-Champaign, IL, August 5, 2019-August 7, 2019

2017
Rodrigues, K. D., Keen-Zebert, A. K., Huot, S., Adams, K. D. (2017). Testing the suitability of the TL signal for dating volcanic glass. Luminescence and Electron Spin Dating Conference (LED 2017): Cape Town, South Africa, September 11, 2017-September 15, 2017

Rodrigues, K. D., Keen-Zebert, A. K., Huot, S., Adams, K. D. (2017). Testing the potential of thermoluminescence dating of volcanic glass with known-age samples. Geological Society of America: Seattle, October 22, 2017

2016
Larkin, Z., Ralph, T., Tooth, S., Duller, G. A., McCarthy, T. S., Keen-Zebert, A. K., Humphries, M. (2016). Implications of Channel Avulsion for the Structure and Functioning of Semiarid Floodplain Wetlands: Examples from South Africa. INTECOL International Wetlands Conference: Changshu, China, September 19, 2016-September 24, 2016

2015
Keen-Zebert, A. K. (2015). Using OSL to investigate the impact of lithological heterogeneity on sediment preservation in fluvial systems. Annual Meeting of the Association of American Geographers: Chicago, IL

Shepherd, S., Keen-Zebert, A. K. (2015). Heterogeneous lithology and valley width in the Buffalo River watershed, northern Arkansas. Abstracts of the Annual Meeting of the Association of American Geographers: Chicago, IL

Beeson, H. W., McCoy, S., Keen-Zebert, A. K. (2015). Persistent river-basin disequilibrium in a cratonic landscape: Ozark dome, USA, EOS, 96. EOS Transactions: AGU Fall Meeting Supplement: San Francisco, CA, EP41A-0911

2014
Bacon, S. N., Adams, K. D., Bullard, T. F., Keen-Zebert, A. K., Decker, D. L. (2014). Sill Failure and Catastrophic Outburst Floods from Owens Lake, CA: Implications for Latest Pleistocene and Holocene Paleohydrology of the Owens River Drainage Basin, Geological Society of America, Abstracts with Programs, 46 (6). Geological Society of America Annual Meeting: Vancouver British Columbia, October 19, 2014-October 22, 2014, Paper No. 310-7

Keen-Zebert, A. K. (2014). Lithological Controls on Bedrock River Incision and Valley Formation in the Eastern South African Interior, EOS Transactions, 95. AGU Fall Meeting Supplement: San Francisco, CA, Abstract EP53A-3595

Shepherd, S., Keen-Zebert, A. K. (2014). Lithologic Heterogeneity and Variable Valley Width in the Buffalo River Watershed, AR, EOS Transactions, 95. AGU Fall Meeting Supplement, Abstract EP53A-3594

Keen-Zebert, A. K., Baker, S. E. (2014). Comparison of Single- and Multi-Grain Quartz Luminescence Ages from Terraces in the Buffalo National River, Arkansas. 14th International Luminescence and Electron Spin Dating Conference and Workshop: Montreal, Canada

Hendricks, R., Rink, W. J., Mallinson, D., Alexander, C., Keen-Zebert, A. K. (2014). Timing and Emplacement of Ancient Coastal Deposits of Georgia As Determined by ESR Optical Dating: A Work in Progress, Part II. 14th International Luminescence and Electron Spin Dating Conference and Workshop: Montreal, Canada

Keen-Zebert, A. K., Hudson, M., Shepherd, S. (2014). Characterization and Ages of Quaternary River Terraces in the Buffalo National River, Arkansas. South-Central Geological Society of America Regional Meeting: Fayetteville, AR

Shepherd, S., Keen-Zebert, A. K., Hudson, M. (2014). Valley Width and Heterogeneous Lithology in the Buffalo River Watershed, Northern Arkansas. South-Central Geological Society of America Regional Meeting: Fayetteville, AR

Keen-Zebert, A. K., Hudson, M., Shepherd, S. (2014). Post Meeting Field Trip: Quaternary Geology and Geomorphology of the Buffalo National River, Arkansas. South-Central Geological Society of America Regional Meeting: Fayetteville, AR, March 19, 2014

2013
Shepherd, S., Keen-Zebert, A. K., Hudson, M., Turner, K. (2013). Variable Valley Width and Heterogeneous Lithology in the Buffalo National Scenic River, Arkansas, Geological Society of America Annual Meeting Abstracts with Programs, 45 (7), 577. Geological Society of America Annual Meeting: Denver, CO

2012
Keen-Zebert, A. K., Mahan, S. (2012). Equivalent Dose Distributions Demonstrate That Varied Fluvial Transport Processes Are a Major Component in the Construction of Floodplains. New World Luminescence Workshop: Los Angeles, CA

Hendricks, R., Rink, W. J., Mallinson, D., Alexander, C., Keen-Zebert, A. K. (2012). Timing of the Emplacement of Ancient Coastal Deposits of Georgia As Determined by ESR Optical Dating. New World Luminescence Workshop: Los Angeles, CA

Keen-Zebert, A. K., Tooth, S., Rodnight, H., Duller, G. A., Roberts, H., Grenfell, M. (2012). Late Quaternary Floodplain Reworking and the Preservation of Alluvial Sedimentary Archives in the Eastern Interior of South Africa. Meeting of Young Researchers in Earth Sciences V (MYRES V). The Sedimentary Record of Landscape Dynamics: Salt Lake City, UT