Greg Balco -- Publications

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Online geochronology tools

The CRONUS-Earth online exposure-age and erosion-rate calculators. Link


Blog


Greg Balco on Google Scholar


Media coverage

Witness to an Antarctic Meltdown. By Douglas Fox. Scientific American, July 2012, p. 55. Link to online version Link to accompanying slide show

The Time I Got Stranded in Antarctica. By Douglas Fox. The Atlantic (online, Jan 8 2014). Link


Currently active projects

Quaternary fault slip behaviour of the Mission Creek fault of the southern San Andreas fault zone in the San Gorgonio Pass, CA. PIs Kim Blisniuk (BGC/UCB/San Jose State), Greg Balco (BGC), Kate Scharer (USGS). Southern California Earthquake Center. PDF of project description

Terrestrial exposure-age constraints on the Last Glacial Maximum extent of the Antarctic Ice Sheet in the western Ross Sea. PIs: Greg Balco, Claire Todd (Pacific Lutheran University), Brent Goehring (Purdue). National Science Foundation, Office of Polar Programs.PDF of project description.

Production and diffusion of cosmogenic noble gases: Using open-system behavior to study surface processes. PIs David Shuster, Greg Balco. National Science Foundation, EAR - Petrology and Geochemistry/Geomorphology and Land Use Dynamics. PDF of project description

Antarctic Peninsula exhumation and landscape development investigated by low-temperature detrital thermochronometry. PIs Greg Balco, David Shuster. National Science Foundation, Office of Polar Programs. PDF of project description (as submitted..note that this project was partially funded and correspondingly reduced in scope).

Synchronizing the North American Varve Chronology and the Greenland ice core record using meteoric Be-10 flux. PIs Greg Balco, Paul Bierman, Jack Ridge, Dylan Rood. National Science Foundation, Paleo Perspectives on Climate Change (P2C2) program. PDF of project description


Relatively recently completed projects

Acquisition of a noble gas analysis facility for surface process studies at the Berkeley Geochronology Center. PIs David Shuster, Greg Balco. National Science Foundation, EAR I&F. PDF of project description

Last Glacial Maximum and deglaciation chronology for the Foundation Ice Stream and southeast Weddell Sea embayment. PIs Greg Balco, Claire Todd, Howard Conway. National Science Foundation, Office of Polar Programs. PDF of project description

Systematic analysis of landscape evolution and surface ages in the southern Transantarctic Mountains. PIs Jaakko Putkonen, Greg Balco, David Shuster. National Science Foundation, Office of Polar Programs. PDF of project description

Extending the record of Antarctic landscape evolution into the Pliocene with cosmogenic Ne-21 measurements. PIs Greg Balco, David Shuster. National Science Foundation, Office of Polar Programs. PDF of project description

An absolute chronology of the southernmost advances of the Laurentide Ice Sheet. PIs John Stone, Greg Balco, Charles Rovey. National Science Foundation (Geomorphology and Sedimentary Geology and Paleobiology programs). 2006-2008. PDF of proposal

Erosion beneath the Laurentide Ice Sheet and its role in Pleistocene ice age dynamics. PI John Stone. National Science Foundation (Geology and Paleontology program). 2002-2005. PDF of proposal Data repository


Completed manuscripts: in review, in revision, and in press...with links when available

Borchers B., Marrero S., Balco G., Caffee M., Goehring B., Gosse J., Lifton N., Nishiizumi K., Phillips F., Schaefer J., Stone J., in review. Geological calibration of spallation production rates in the CRONUS-Earth project.Quaternary Geochronology

Schaefer J.M., Winckler G., Blard P.-H., Balco G., Shuster D.L., Friedrich R., Jull A.J.T., Wieler R., Schluecter C., in press. Performance of CRONUS-P -- a pyroxene reference material for helium isotope analysis. Quaternary Geochronology .

Blard P.-H., Balco G., Burnard P.G., Farley K.A., Fenton C.R., Friedrich R., Jull A.J.T., Niedermann S., Pik R., Schaefer J.M., Scott E.M., Shuster D.L., Stuart F.M., Stute M., Tibari B., Winckler G., Zimmermann L., in press. An inter-laboratory comparison of cosmogenic He-3 and radiogenic He-4 in the CRONUS-P pyroxene standard. Quaternary Geochronology

Balco G., Stone J.O.H., Sliwinski M., Todd C., in press. A few things about the glacial history of the Transantarctic Mountains inferred from cosmogenic Al-26, Be-10, and Ne-21 concentrations in bedrock surfaces. Antarctic Science. PDF submitted MS

Vermeesch P., Balco G., Blard P-H., Dunai T.J., Kober F., Niedermann S., Shuster D.L., Strasky S., Stuart F.M., Wieler R., Zimmermann L., in press. Interlaboratory comparison of cosmogenic Ne-21 in quartz. Quaternary Geochronology. PDF preprint


Manuscripts that slipped through the cracks

Rovey C.W., II, Balco G., Forir M., Gaunt D.. Stratigraphy, paleomagnetism, and cosmogenic-isotope burial dates of fossil-bearing strata within Riverbluff Cave, Greene County, Missouri. Reviewed and, I think, accepted by the Journal of Cave and Karst Studies, yet never published. PDF

Balco G., Stone J.O.H., Jennings C.E. Fate of the preglacial regolith beneath the Laurentide Ice Sheet. Rejected a couple of times by various outlets.PDF draft


Published

2015

Rovey C.W. II, Balco G., 2015. Paleoclimatic interpretations of buried paleosols within the pre-Illinoian till sequence in northern Missouri, USA. Palaeogeography, Palaeoclimatology, Palaeoecology 417, pp. 44-56. PDF

2014

Tremblay M., Shuster D.L., Balco G., 2014. Diffusion kinetics of He-3 and Ne-21 in quartz and implications for cosmogenic noble gas paleothermometry.Geochimica et Cosmochimica Acta 142, pp. 186-204. PDF

Putkonen J., Morgan D., Balco G., 2014. Boulder weathering in McMurdo Dry Valleys, Antarctica. Geomorphology 219, pp. 192-199. PDF

Tremblay M., Shuster D., Balco G., 2014. Cosmogenic noble gas paleothermometry. Earth and Planetary Science Letters 400, pp. 195-205. PDF

Johnson J.S., Bentley M.J., Smith J.A., Finkel R.C., Rood D.H., Gohl K., Balco G., Larter R.T., Schaefer J.M., 2014. Rapid thinning of Pine Island Glacier in the early Holocene. Science 343, pp. 999-1001. Link

Dethier D.P., Ouimet W., Bierman P.R., Rood D.G., Balco G., 2014. Basins and bedrock: spatial variation in Be-10 erosion rates and increasing relief in the southern Rocky Mountains, USA. Geology, 42, pp. 167-170. PDF

Balco G., 2014. Simplified computer code for estimating cosmic-ray shielding due to oddly shaped objects. Quaternary Geochronology, available online 1 Jan 2014. PDF   Code

2013

Balco G., Soreghan G.S., Sweet D.E., Marra K.R., Bierman P.R., 2013. Cosmogenic-nuclide burial ages for Pleistocene sedimentary fill in Unaweep Canyon, Colorado, USA. Quaternary Geochronology, v. 18, pp. 149-157. PDF

Altman, N.S., Balco, G., Crainiceanu, C., Gehrels, W.R., Qui, J., Staudenmayer, J., Sullivan, P., 2013. Statistical modeling of changes in relative sea level in Maine during the Holocene Era. Environmetrics, 24, pp. 298-305. PDF

Balco G., Finnegan N., Gendaszek A., Stone J.O.H., Thompson N., 2013. Erosional response to northward-propagating crustal thickening in the coastal ranges of the U.S. Pacific Northwest. American Journal of Science 313, pp. 790-806. PDF

Also note an early meeting abstract describing some of this work that features great ASCII art: Gendaszek A., Thompson N., Balco G., Todd C., Stone J., 2005. Long-term erosion rates of coastal watersheds in the Pacific Northwest. Geological Society of America, 2005 Annual Meeting, Abstract 83-13.

Jungers M.C., Heimsath A.M., Amundson R., Balco G., Shuster D., Chong G., 2013 in press. Active erosion-deposition cycles in the hyperarid Atacama Desert of northern Chile. Earth and Planetary Science Letters 371-372, pp. 125-133. PDF

Finnegan N.J., Balco G., 2013. Sediment supply, base level, braiding, and bedrock river terrace formation: Arroyo Seco, California, USA. Geological Society of America Bulletin B30727.1 PDF

Campbell S., Balco G., Todd C., Conway H., Huybers K., Simmons C., Vermeulen M., 2013. Radar-detected englacial stratigraphy in the Pensacola Mountains, Antarctica: implications for recent changes in ice flow and accumulation. Annals of Glaciology 54(63), pp. 91-100. PDF

Balco G., Schaefer J.M., LARISSA group, 2013. Exposure-age record of Holocene ice sheet and ice shelf change in the northeast Antarctic Peninsula. Quaternary Science Reviews. 59, pp. 101-111. PDF

2012

Ridge, J.C., Balco, G., Bayless, R.L., Beck, C.C., Carter, L.B., Dean, J.L., Voytek, E.B., Wei, J.H., 2012. The new North American Varve Chronology: a precise record of southeastern Laurentide Ice Sheet deglaciation and climate, 18.2 - 12.5 kyr BP, and correlations with Greenland ice core records. American Journal of Science 312, pp. 685-722. This paper received the 2014 Kirk Bryan Award. PDF

Gourbet L., Shuster D.L., Balco G., Cassata W.S., Renne P.R., Rood D., 2012. Neon diffusion kinetics in olivine, pyroxene, and feldspar: retentivity of cosmogenic and nucleoenic neon. Geochimica et Cosmochimica Acta 86, pp. 21-36. PDF

Shuster D.L., Farley K.A., Vasconcelos P.M., Balco G., Monteiro H.S., Waltenberg K., Stone J.O., 2012. Cosmogenic He-3 in hematite and goethite from Brazilian "canga" duricrust demonstrates the stability of these surfaces. Earth and Planetary Science Letters 329-330, pp. 41-50. PDF

Putkonen J., Morgan D., Balco G., 2012. Regolith transport quantified by braking block, McMurdo Dry Valleys, Antarctica. Geomorphology. PDF

2011

Renne P., Balco G., Ludwig K., Mundil R., Min K., 2011. Response to the comment by W.H. Schwarz et al. on "Joint determination of K-40 decay constants and Ar-40*/K-40 for the Fish Canyon sanidine standard, and improved accuracy for Ar-40/Ar-39 geochronology" by P.R. Renne et al. (2010). Geochimica et Cosmochimica Acta, v. 75, pp. 5097-5100. Comment (PDF)   Reply (PDF)

Rovey C.W., II, Balco G., 2011. Summary of early and middle Pleistocene glaciations in northern Missouri, USA. in Ehlers, J., Gibbard, P.L., Hughes, P.D., eds., Quaternary Glaciations, Extent and Chronology, pp. 553-561. PDF

Balco G., Purvance M., Rood D., 2011. Exposure dating of precariously balanced rocks. Quaternary Geochronology 6, pp. 295-303. PDF - Corrigendum .

Shuster D.L., Cuffey K.M., Sanders J.W., Balco G., 2011. Thermochronometry reveals headward propagation of erosion in an alpine landscape. Science 332, pp. 84-88. PDF

Balco G., 2011. Contributions and unrealized potential contributions of cosmogenic-nuclide exposure dating to glacier chronology, 1990-2010. Quaternary Science Reviews. 30, pp. 3-27 (invited review paper) PDF

2010

Balco, G., 2010. Review of Cosmogenic Nuclides: Principles, Concepts, and Applications in the Earth Sciences, by Tibor Dunai. Quaternary Geochronology 5, p. 705. PDF.

Farley K.A., Shuster D.L., Watson E.B., Wanser K.H., Balco G., 2010. Numerical investigations of apatite He-4/He-3 thermochronometry. G-cubed, v. 11, doi:10.1029/2010GC003243. PDF

Rovey C.W., II, Bettis, E.A., III, Balco, G., Kean, W.F., 2010. A paleomagnetic reversal within the pre-Illinoian Alburnett Formation, eastern Iowa. in Marshall, T. and Fields, C., eds., The Geology of Klein and Conklin Quarries, Johnson County, Iowa: Geological Society of Iowa Guidebook 87, pp. 161-172. PDF

Morgan D., Putkonen J., Balco G., Stone J., 2010. Quantifying regolith erosion rates with cosmogenic nuclides Be-10 and Al-26 in the McMurdo Dry Valleys, Antarctica. Journal of Geophysical Research - Earth Surface 115, p. F03037. PDF

Morgan D., Putkonen J., Balco G., Stone J., 2010. Degradation of glacial deposits quantified with cosmogenic nuclides, Quartermain Mountains, Antarctica. Earth Surface Processes and Landforms. PDF

Balco G., Rovey C.W., II., 2010. Absolute chronology for major Pleistocene advances of the Laurentide Ice Sheet. Geology 38, pp. 795-798. PDF PDF supplementary data .

Renne P.R., Mundil R., Balco G., Min K., Ludwig K.R., 2010. Joint determination of K-40 decay constants and Ar-40*/K-40 for the Fish Canyon sanindine standard, and improved accuracy for Ar-40/Ar-39 geochronology. Geochmica et Cosmochimica Acta. 74, pp. 5349-5367 PDF

Goehring, B., Kurz, M.D., Balco, G., Schaefer, J.M., Licciardi, J., Lifton, N., 2010. A reevaluation of in-situ cosmogenic He-3 production rates. Quaternary Geochronology 5, pp. 410-418 PDF

Rovey, C.W., II, Forir, M., Balco, G., Gaunt, D., 2010. Geomorphology and paleontology of Riverbluff Cave, Springfield, Missouri, in Evans, K.R. and Aber, J.S., eds., From Precambrian Rift Volcanoes to the Mississipian Shelf Margin: Geological Field Excursions in the Ozark Mountains: Geological Society of America Field Guide 17, pp. 31-38.

Schildgen T.F., Balco G., Shuster D.L., 2010. Canyon incision and knickpoint propagation recorded by apatite He-4/He-3 thermochronometry. Earth and Planetary Science Letters 293, pp. 377-387. PDF

Shuster D.L., Balco G., Cassata W.S., Fernandes V.A., Garrick-Bethell I., Weiss B.P., 2010. A record of impacts preserved in the lunar regolith. Earth and Planetary Science Letters 290, pp. 155-165. PDF

Rovey, C.W., II, Balco, G., 2010. Periglacial climate at the 2.5 Ma onset of Northern Hemisphere glaciation inferred from the Whippoorwill formation, northern Missouri, USA. Quaternary Research 73, pp. 151-161. PDF

2009

Balco G., Shuster D.L., 2009. Al-26 - Be-10 - Ne-21 burial dating. Earth and Planetary Science Letters. PDF of article Supplementary Table S1

Balco G., 2009. The geographic footprint of glacier change. Science (invited Perspective) 324, p. 599. Click through this page for full-text access

Balco, G. Shuster, D.L., 2009. Production rate of cosmogenic Ne-21 in quartz estimated from Be-10, Al-26 and Ne-21 concentrations in slowly eroding Antarctic bedrock surfaces. Earth and Planetary Science Letters 281, pp. 48-58. PDF Supplementary figures Supplementary table

Balco G., Briner J., Finkel R.C., Rayburn J., Ridge J.C., Schaefer J.M., 2009. Regional beryllium-10 production rate calibration for late-glacial northeastern North America. Quaternary Geochronology 4, pp. 93-107. PDF

2008

Balco, G., Rovey C.W. II, 2008. An isochron method for cosmogenic-nuclide dating of buried soils. American Journal of Science 308, pp. 1083-1114. PDF .tar file containing MATLAB code.

Putkonen J., Balco G., Morgan D., 2008. Slow regolith degradation without creep determined by cosmogenic nuclide measurements in Arena Valley, Antarctica. Quaternary Research 69, pp. 242-249. PDF

Balco G., Stone J., Lifton N., Dunai T., 2008. A simple, internally consistent, and easily accessible means of calculating surface exposure ages and erosion rates from Be-10 and Al-26 measurements. Quaternary Geochronology 3, pp. 174-195. PDF Link to online exposure age calculators

2007

Jennings C.E., Aber J.S., Balco G., Barendregt R., Bierman P.R., Rovey C.W., Roy M., Thorleifson L.H., Mason J.A., 2007. Glaciations: mid-Quaternary in North America. in Elias S.A., ed., Encyclopedia of Quaternary Science. Volume 2, pp. 1044-1051. PDF

Balco, G., 2007. A surprisingly large marine ice cap at Heard Island during the Last Glacial Maximum? in Antarctica: A Keystone in a Changing World -- Online Proceedings of the 10th ISAES, editedby A.K. Cooper and C.R. Raymond et al., USGS Open-File Report 2007-1047, Extended Abstract 147, 4 p. PDF Poster (12 MB PDF)

Putkonen J., Rosales M., Turpen N., Morgan D., Balco G., and Donaldson M., 2007. Regolith transport in the Dry Valleys of Antarctica. in Antarctica: A Keystone in a Changing World -- Online Proceedings of the 10th ISAES, edited by A. K. Cooper and C. R. Raymond et al. USGS Open-File Report 2007-1047, Short Research Paper 103. PDF

2006

Balco, G., Schaefer, J., 2006. Cosmogenic-nuclide and varve chronologies for the deglaciation of southern New England. Quaternary Geochronology 1, pp. 15-28. PDF

Balco, G., Cowdery, S., Todd, C., Stone, J.O.H., 2006. Antarctic ice sheet reconstruction using cosmic-ray-produced nuclides. in Knight, P., ed., Glaciers and Earth's Changing Environment, pp. 221-223. Blackwell Publishing, Oxford, UK. PDF

2005

Balco, G., Stone, J.O.H., 2005. Measuring middle Pleistocene erosion rates with cosmic-ray-produced nuclides in buried alluvial sediment, Fisher Valley, southeastern Utah. Earth Surface Processes and Landforms 30, pp. 1051-1067. PDF

Balco, G., Stone, J.O.H., Mason, J., 2005. Numerical ages for Plio-Pleistocene glacial sediment sequences by Al-26/Be-10 dating of quartz in buried paleosols. Earth and Planetary Science Letters 232, pp. 179-191. PDF

Sugden D., Balco G., Cowdery S., Stone J.O.H., Sass L., 2005. Selective glacial erosion and weathering zones in the coastal mountains of Marie Byrd Land, Antarctica. Geomorphology 67, pp. 317-334. PDF

Balco, G., Stone, J.O.H., Jennings, C., 2005. Dating Plio-Pleistocene glacial sediments using the cosmic-ray-produced radionuclides Be-10 and Al-26. American Journal of Science 305, pp. 1-41. PDF

Balco, G., Rovey, C.W., Stone, J.O.H., 2005. The First Glacial Maximum in North America. Science 307, p. 222. PDF

2003

Stone, J.O.H., Balco, G., Sugden, D., Caffee, M., Sass, L.C. III, Cowdery, S., Siddoway, C., 2003. Holocene deglaciation of Marie Byrd Land, West Antarctica. Science 299, p. 99. PDF

2002

Balco, G., Stone. J.O.H., Porter, S.C., Caffee, M., 2002. Cosmogenic-nuclide ages for New England coastal moraines, Martha's Vineyard and Cape Cod, Massachusetts, USA. Quaternary Science Reviews 21, pp. 2127-2135. PDF

2001

Montgomery, D., Balco, G., Willett, S., 2001. Climate, tectonics, and the morphology of the Andes. Geology 29, pp. 579-582. PDF

Dorion, C.C., Balco, G., Kaplan. M.R., Kreutz, K.J., Wright, J., Borns, H.W., 2001. The Deglaciation of Eastern Maine. in Retelle, M. and Weddle, T., eds., Deglacial History and Relative Sea-Level Changes, Northern New England and Adjacent Canada: Geological Society of America Special Paper 351.

1998

Balco, G., Belknap, D.F., and Kelley, J.T., 1998. Glacioisostasy and lake-level change, Moosehead Lake, Maine. Quaternary Research 49, pp. 157-170. PDF


Abstracts: recent and upcoming abstracts; also older abstracts of work not published elsewhere

2014

Moening-Swanson I., Todd C.E., Balco, G., 2014. Mapping glacial geologic deposits at Tucker, Mariner, and Aviator Glaciers in the Northwestern Ross Sea. Geological Society of America, 2014 Annual Meeting. Link

Bibby T., Putkonen J., Morgan D., Balco G., 2014. Production and preservation of sublimation till determined with Al-26 and Be-10, Ong Valley, Antarctica. Geological Society of America, 2014 Annual Meeting. Link

DeJong, B.D., Balco G., Ridge J.C., Rood D.H., Bierman P.R., 2014. Synchronizing North American varved sediments with Greenland ice using meteoric Be-10 flux records. Geological Society of America, 2014 Annual Meeting. Link

Van Arsdale R.B., Balco G., Bierman P., Rood D.H., Rovey C., Cox R.T., Lumsden D.N., Parks A., 2014. The Pliocene Mississippi River. Geological Society of America, 2014 Annual Meeting. Link

Ridge J.C., Balco G., Beck C.C., Bayless R.L., Carter L.B., Dean J.D., Voytek, E.B., Wei, J.H., 2014. GSA Quaternary Geolgy and Geomorphology Division Kirk Bryan Award: A comprehensive deglacial time scale for the northeastern united states: varves, radiocarbon ages, paleomagnetism, and cosmogenic-nuclide exposure dating. Geological Society of America, 2014 Annual Meeting. Link

2013

Dethier D.P., Ouimet W.B., Bierman P.R., Rood D.H., Balco, G., 2013. Spatial variation in Be-10 erosion rates and increasing relief in the southern Rocky Mountains. Geological Society of America, 2013 Annual Meeting. Link

Putkonen J., Giusti C., Hoeft E., Morgan D., Balco G., 2013. Intriguing glacial flow patterns, Moraine Canyon, Antarctica. Geological Society of America 2013 Annual Meeting. Link

Shuster D.L., Tremblay M.M., Balco G., 2013. Production and diffusion of cosmogenic noble gases: using open-system behavior to study surface processes. Goldschmidt Conference 2013. Link

Tremblay M.M., Shuster D.L., Balco G., 2013. Quantifying the open-system behavior of cosmogenic noble gases in quartz. Goldschmidt Conference 2013. Link

DeJong B.D., Balco G., Ridge J.C., Rood D.H., Bierman P.R., 2013. Synchronizing the North American Varve Chronology with Greenland ice core records during late MIS 2 using meteoric Be-10 flux. Geophysical Research Abstracts 15, EGU2013-1140 (EGU General Assembly 2013). Link

DeJong B.D., Balco G., Ridge J.C., Rood D.H., Bierman P.R., 2013. Towards synchronizing the North American Varve Chronology with Greenland ice core records using meteoric Be-10 flux. Geological Society of America, Northeastern Section, 48th Annual Meeting. Link

Amidon W.H., Anderson A.J., Balco G., Shuster D.L., 2013. Low temperature thermal history of the Conway Granite, NH. Geological Society of America, Northeastern Section, 48th Annual Meeting. Link

2012

Rood D.H., Anooshehpoor R., Balco G., Biasi G.P., Brune J.N., Brune R., Grant Ludwig L., Kendrick K.J., Purvance M, Saleeby I., 2012. Testing seismic hazard models with Be-10 exposure ages for precariously balanced rocks. AGU Fall Meeting, T13D-2632. PDF

DeJong B., Balco G., Ridge J.C., Rood D.H., Bierman P.R., 2012. Synchronizing the North American Varve Chronology with Greenland ice core records using meteoric Be-10 flux. AGU Fall Meeting, GC33B-1017. PDF

Finnegan N.J., Balco G., 2012. Braiding, sediment supply, and paired strath terrace formation. AGU Fall Meeting, EP51A-0963 (invited). PDF

Jungers M.C., Heimsath A.M., Amundson R., Balco G., Shuster D.L., Chong G., 2012. Mid-Pleistocene erosion-deposition cycles in the hyperarid Atacama Desert of northern Chile. AGU Fall Meeting, EP51E-03. PDF

Balco G., Todd C.E., Huybers K.M., Hegland M., 2012. Ingredients for a value-neutral target data set of exposure-age constraints on ice sheet thickness change. AGU Fall Meeting, C53E-03 (invited). PDF

Huybers K.M., Roe G., Conway H., Balco G., Todd C.E., 2012. Linkage between Grounding Line Dynamics and Geological Observations in the Weddell Sea Sector of Antarctica. AGU Fall Meeting, C53E-04. PDF

Putkonen J., Morgan D.J., Balco G., 2012. Landscape Degradation and Regolith Transport in McMurdo Dry Valleys of Antarctica. AGU Fall Meeting, EP53E-1081. PDF

Balco G., Shuster D.L., 2012. Quantifying selective linear erosion in Antarctica. AGU Fall Meeting, EP54B-02 (invited). PDF

Hegland M., Vermeulen M., Todd C., Balco G., Huybers K., Campbell S., Conway H., Simmons C., 2012. Glacial geomorphology of the Pensacola Mountains, Weddell Sea Sector, Antarctica. Geological Society of America, 2012 Annual Meeting.Link

Hegland M., Vermeulen M., Todd C., Balco G., Huybers K., Campbell S., Conway H., Simmons C., 2012. Glacial geomorphology of the Pensacola Mountains, Weddell Sea Sector, Antarctica. West Antarctic Ice Sheet Project (WAIS) meeting.Link to abstract volume

Putkonen J., Bibby T., Morgan D., Balco G., Giusti C., Matheney R., 2012. Geomorphology and regolith erosion rates from ice-free valleys in the Southern Transantarctic Mountains. 32nd SCAR Open Science Conference. PDF

Balco G., LARISSA project. Terrestrial exposure-age record of ice sheet and ice shelf change, northeast Antarctic Peninisula. Korea Polar Research Institute, 18th International Symposium on Polar Sciences, Jeju, Korea, May 2012.

2011

Bibby T., Putkonen J., Morgan D., Balco G., Matheney R.K., 2011. What could possibly happen in a million years? Landscape evolution in the southern Transantarctic Mountains. Geological Society of America, 2011 Annual Meeting. Link

Vermeulen M., Todd C., Balco G., Huybers K., Campbell S., Simmons C., 2011. Glacial geomorphology of the Williams and Schmidt Hills, Pensacola Mountains, Antarctica. Geological Society of America, 2011 Annual Meeting. Link

Ridge J.C., Balco G., Beck C.C., Voytek E.B., 2011. The new North American Varve Chronology: a record of southeastern Laurentide deglaciation and climate: 18.5-12.5 kyr BP. Geological Society of America, 2011 Annual Meeting. Link

Rood D.H., Anooshehpoor R., Balco G., Brune J., Brune R., Grant Ludwig L., Kendrick K., Purvance M., Saleeby I., 2011. New Be-10 exposure ages and fragilities for precariously balanced rocks test PSHA and rupture models in southern California. Southern California Earthquake Center (SCEC) 2011 Annual meeting. PDF

Balco G., Shuster D.L., Blard P-H., Zimmermann L., Stone J., 2011. Cosmogenic Ne-21 production systematics in quartz inferred from a 25-meter sandstone core. Goldschmidt Conference 2011. PDF of abstract PDF of poster

Goehring B., Balco G., 2010. Improving cosmogenic-nuclide burial dating. INQUA 2011 (invited). Link

Morgan D.J., Putkonen J., Balco G., 2011. Determining rates of geomorphic processes over multiple timescales with cosmogenic nuclides AL-26, Be-10, and Ne-21. International Symposium on Antarctic Earth Sciences (ISAES) 2011. PDF

2010

Marra K.R., Soreghan G.S., Soreghan, M.J., Balco, G., 2010. Late Cenozoic evolution of Unaweep Canyon (Colorado Plateau) from new sedimentologic and geochronologic results. 2010 GSA Annual Meeting. Link

Renne P.R., Mundil R., Balco G., Min K., Ludwig K.R., 2010. Unleashing the full potential of the Ar-40/Ar-39 geochronometer. 2010 Goldschmidt conference. PDF

Putkonen J., Morgan D., Balco G., 2010. Regolith erosion from years to millions of years: Dry Valleys, Antarctica. SCAR Open Science Conference, Buenos Aires, Argentina. PDF

Shuster D.L., Cuffey K.M., Sanders J.W., Balco G., 2010. Patterns of relief development in a glacial landscape constrained by apatite He-4/He-3 thermochronometry. Thermo2010 conference, Glasgow, Scotland. PDF

Farley K.A., Shuster D.L., Balco G., 2010. Exploring fundamental assumptions of He thermochronometry. Thermo2010 conference, Glasgow, Scotland. PDF

Balco G., Rovey C., 2010. Cosmogenic-nuclide burial dating of early and middle Pleistocene glacial sediments. Geological Society of America North Central and South Central sections, 44th annual meeting, Branson, MO. Link to abstract

Rovey C., Balco G., 2010. Lithology and stratigraphic sequence of pre-Illinoian tills in Nebraska and western Iowa. Geological Society of America North Central and South Central sections, 44th annual meeting, Branson, MO. Link to abstract

Rood D.H., Balco G., Purvance M., Anooshehpoor R, Brune J., Grant Ludwig L., Kendrick K., 2010. Dating precariously balanced rocks using Be-10 with numerical models. 2010 Seismological Society of America Annual Meeting. Link to abstract

2009

Morgan D., Putkonen J., Balco G., Stone J., 2009. Sublimation of ground ice and erosion of glacial deposits quantified with cosmogenic nuclides, McMurdo Dry Valleys, Antarctica. 2009 AGU Fall Meeting. Abstract

Schildgen T.F., Balco G., Shuster D.L., Ehlers T.A., Hodges K., Whipple K.X., 2009. Thermochronometer and Numerical Modeling Constraints on Canyon Incision and Topographic Evolution, SW Peru. 2009 AGU Fall Meeting. Abstract

Williams R.W., Gaffney A.M., Balco G., Bates C.R., Conrado C.L., Crable A.R., Faye S.A., Kelley M.P., Williams S.M., 2009. Local and global fallout preserved in lake sediment from the Sierra Nevada, California. 4th Annual Asia-Pacific Symposium on Radiochemistry, Napa, CA. PDF

Fletcher K., Le K., Rockwell T.K., Balco G., Oskin M., Sharp W., 2009. Comparison of ages from U-series on pedogenic carbonate and Be-10 depth profiles for two late Pleistocene alluvial fans in southern California. 2009 GSA Annual Meeting. Link

Goehring B., Kurz M., Balco G., Schaefer J., Licciardi J., Lifton N., 2009. A reevaluation of in situ cosmogenic He-3 production rates. 2009 GSA Annual Meeting. Link

Renne P., Mundil R., Balco G., Min K., 2009. Simultaneous determination of K-40 decay constants and age of the Fish Canyon Ar-40/Ar-39 standard. 2009 GSA Annual Meeting. Link

Putkonen J., Jahraus T., Morgan D., Balco G., 2009. Direct quantification of current sediment transport on surfaces in varying climates, WA and ND, USA, and Dry Valleys, Antarctica. 2009 GSA Annual Meeting. Link

Valla P., Shuster D.L., van der Beek P.A., Balco G., Herman F., Braun J., 2009. Tectonically-controlled exhumation versus climatically driven relief development in the Valais area (western European Alps) revealed by apatite (U-Th-Sm)/He and He-4/He3 thermochronometry. 2009 AGU Fall Meeting. PDF of abstract

Rood D., Balco G., Purvance M., Anooshehpoor R., Brune J., Grant-Ludwig, L., Kendrick K., 2009. How do we date a precariously balanced rock? A robust method using Be-10 surface exposure dating with numerical models. Southern California Earthquake Conference, 2009. PDF of abstract

Balco G., Rood D.H., Morgan D., Behr W., 2009. Forward models of geomorphic processes used to interpret complex cosmogenic-nuclide data sets. 2009 Goldschmidt Conference (invited). PDF of abstract PDF of talk (19MB)

Granger D., Balco G., 2009. Isochron burial dating. 2009 Goldschmidt conference (invited, keynote). PDF

Stone J., Fifield L.K., Finkel R., Rood D., Balco G., Shuster D., 2009. Cosmogenic nuclide production rates from ancient Antarctic surfaces. 2009 Goldschmidt Conference. PDF

Rood D., Finkel R.C., Balco G., 2009. Evaluation of the past seismic activity at Yucca Mountain, Nevada, based on the rate of landscape evolution determined with cosmogenic Cl-36 and Ne-21 in feldspar mineral separates. Seismological Society of America, 2009 Annual Meeting.

2008

Balco G., Rovey C.W., 2008. Absolute chronology for early and middle Pleistocene Laurentide Ice Sheets from multiple-cosmogenic-nuclide dating methods. Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract PP53A-02 (invited). Link

Morgan D.J., Putkonen J., Balco G.,Stone J., 2008. Colluvium Erosion Rates in the McMurdo Dry Valleys, Antarctica. Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract C34B-05. Link

Balco G., Shuster D.L., Morgan, D., Putkonen, J., 2008. Combined measurements of cosmogenic Be-10, Al-26, and Ne-21 in quartz used to discern temporal changes in rates of Antarctic landscape evolution. Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract V51H-01 (invited). Link

Schildgen T.F., Ehlers T.A., Hodges K.V., Whipple K.X., Shuster D.L., Balco, G., 2008. Long-term Canyon Incision From Low-Temperature Thermochronology. Eos Trans. AGU, 89(53), Fall Meet. Suppl., Abstract T33D-2096. Link

Balco G., Putkonen J., Morgan D., Schaefer J., Winckler G., 2008. Bedrock erosion rates in the Antarctic Dry Valleys. Geochimica et Cosmochimica Acta v. 72, p. A47 (2008 Goldschmidt Conference).PDF

Balco G., Rovey C., Granger D., 2008. Multiple-cosmogenic-nuclide isochron methods. Geochimica et Cosmochimica Acta v. 72, p. A47 (invited keynote talk, 2008 Goldschmidt Conference). PDF

Schaefer J., Balco G., Kelly M., Hanson G., Finkel R., McCabe M., Steinberg R., Boothroyd J., Schwartz R., 2008. The last deglaciation of the eastern Laurentide Ice Sheet. Geochimica et Cosmochimica Acta v. 72, p. A827. PDF

Pre-2008, not otherwise published

Balco, G., Anders, A., Finnegan, N., Gran, K., Mitchell, S., Stone, J.O.H., 2002. Be-10 measurements of soil balance and landscape stability in the Pacific Northwest. Eos Trans. AGU, 83(47), Fall Meeting Supplement, Abstract H22B-0895. PDF poster (large file)

Balco G., Stone J.O.H., Caffee M., Parnachov S., 2000. Cosmogenic-isotope ages for Siberian megafloods, Altai Republic, Russia. GSA Abstracts with Programs [2000 Annual Meeting], v. 32, no. 6, p. 117. More information


Dissertation

Balco G. The sedimentary record of subglacial erosion by the Laurentide Ice Sheet. Unpublished Ph.D. thesis, University of Washington, 2004. PDF