Darrell S. Kaufman

CP-LUHNA Author: Tools: Other Dating Techniques

Departments of Geology and Environmental Sciences
Northern Arizona University
Flagstaff, Arizona 86011-4099
520-523-7192; fax: -9220

E-mail: Darrell.Kaufman@nau.edu
Dr. Kaufman's current CV: http://jan.ucc.nau.edu/~dsk5/

Education

1991, Ph.D., Geological Sciences, University of Colorado, Boulder, "Pliocene-Pleistocene Chronostratigraphy, Nome, Alaska"

1987, M.S., Geological Sciences, University of Washington, Seattle, "Morphometric Analysis of Pleistocene Glacial Deposits, Kigluaik Mountains, Alaska"

1982, B.S., Earth Sciences, University of California, Santa Cruz

1982, B.A., Environmental Studies, University of California, Santa Cruz

Positions

1998-present, Assistant Professor, Departments of Geology and Environmental Science, Northern Arizona University

1993-1998, Assistant Professor, Department of Geology, Utah State University

1992, NATO-NSF Postdoctoral Fellow, Department of Geology, University of Bergen, Norway

1991, Research Associate, Institute of Arctic and Alpine Research, University of Colorado

1988-90, Consulting Geologist, U.S. Department of Interior, Minerals Management Service

1982-85, Geologist, U.S. Geological Survey, Branch of Alaskan Geology, Alaska

Research Interests

Quaternary geology and geomorphology, geochronology, and paleoclimatology; glacier, sea-level, and lake-level fluctuations; paleoenvironments of the Great Basin and Beringia; amino acid geochronology.

Professional Service

Member, Advisory Committee, NSF's Arctic System Science Research Program

Member, Review Panel, NSF's Earth Systems History Program

Regular reviewer, journal articles (GSA Bulletin, Quaternary Research, Arctic and Alpine

Research, Boreas) and research proposals (National Science foundation, Petroleum Research Fund, Geological Society of America)

Editor, The Quaternary Times newsletter for the 1100-member American Quaternary Association

WWW site and Directory of North American Quaternary Scientists manager for AMQUA

Grants

1998-2000 Climatic variations during the last glaciation in southwestern Alaska: National Science Foundation, Earth System History. view project summary

1998-2000, Investigations into the variability of diagenetic racemization in fossil gastropods: The Petroleum Research Fund, American Chemical Society. view project summary

1997-2000, Late Quaternary temperature history of the Great Basin based on amino acid paleothermometry: National Science Foundation, Earth System History. view project summary

1996-99, Pleistocene sea-level and glacial fluctuations, coastal Ahklun Mountains, southwest Alaska: National Science Foundation, Arctic Natural Sciences

1996-98, Development of an automated HPLC for separation of DL amino acids for enhanced geochronology and paleothermometry: National Science Foundation, Instrumentation and Facilities.

1994-96, Amino acid racemization in the high-molecular-weight fraction of biogenic carbonateÛChronostratigraphic applications: The Petroleum Research Fund, American Chemical Society.

1994-96, Pleistocene lake-level fluctuations, northeast Bonneville Basin, based on amino acid geochronology: Utah State University Faculty Research Grant.

1994-95, Feasibility study--Coring last interglacial deposits, Bristol Bay, Alaska: National Science Foundation, Atmospheric Dynamics Program.

1992-95, Chronostratigraphy of Pleistocene high-sea-level and glacial deposits, northeastern Bristol Bay Alaska: National Science Foundation Office of Polar Programs.

1994, Developing laboratory experiments and field trips for Environmental Geology (Geol 105): Utah State University College of Science Course Development Grant.

1990-93, Co-Principal Investigator, Late Quaternary dynamics of the Labrador/Foxe sectors of the Laurentide Ice Sheet and ice-sheet/ocean interaction in the North Atlantic Ocean: National Science Foundation Division of Surficial Processes.

1988-91, Distribution of placer gold and its relation to geologic processes, offshore Nome, Alaska: U.S. Department of Interior, Minerals Management Service.

Publications, Peer-Reviewed Articles and Maps

Kaufman, D.S., Manley, W.F., Forman, S.L., Layer, P., submitted 1/98, Pre-late-Wisconsin glacial history, coastal Ahklun Mountains, southwestern Alaska--New amino acid, thermoluminescence, and 40Ar/39Ar results: Quaternary Science Reviews.

Manley, W.F., Kaufman, D.S., and Briner, J.P., submitted 1/98, Late Quaternary glacial history of the southern Ahklun Mountains, southeast Beringia--Soil development, morphometric, and radiocarbon constraints: Quaternary Science Reviews.

Hearty, P.J., and Kaufman, D.S., submitted 8/98, Whole-rock aminostratigraphy, quaternary sea level and geologic history of the Bahama Islands: Quaternary Science Reviews.

Hearty, P.J., Neumann, C., and Kaufman, D.S., submitted 2/98, Chevron-shaped ridges support large wave impact during substage 5e in the Bahamas: Quaternary Research.

Kaufman, D.S., and Manley, W.F., 1998, A new procedure for determining enantiomeric (D/L) amino acid ratios in fossils using reverse phase liquid chromatography: Quaternary Science Reviews (Quaternary Geochronology) (in press).

Calkin, P.E., Kaufman, D.S., Przybyl, B.J., Whitford, W.B., and Peck, B.J., 1998, Glacier regimes, periglacial landforms, and Holocene climate change in the Kigluaik Mountains, Seward Peninsula, Alaska, U.S.A.: Arctic and Alpine Research 20, 154-165.

Bouchard, D.P., Kaufman, D.S., Hochberg, A., Quade, J., 1998, Quaternary history of the Thatcher Basin, Idaho, reconstructed from the 87Sr/86Sr and amino acid composition of lacustrine fossils--implications for the diversion of the Bear River into the Bonneville basin: Palaeogeography, Palaeoclimatology, Palaeoecology 141, 95-114.

Kaufman, D.S., and Thompson, C.H., 1998, Re-evaluation of pre-late-Wisconsin glacial deposits, lower Naknek valley, southwestern Alaska: Arctic and Alpine Research 30, 142-153.

Kaufman, D.S., and Stilwell, K.B., 1997, Preliminary evaluation of emergent postglacial shorelines, Naknek and Iliamna lakes, southwestern Alaska: Geological Studies in Alaska by the U.S. Geological Survey During 1995, U.S. Geological Survey Professional Paper 1574, p. 73-81.

Stilwell, K.B., and Kaufman, D.S., 1996, Late Wisconsin glacial history of the Iliamna/Naknek/Brooks lake area, southwestern Alaska: Arctic and Alpine Research, v. 28, p. 475-487.

Kaufman, D.S. Forman, S.L., Lea, P.D., and Wobus, C.W., 1996, Age of pre-late-Wisconsin glacial-estuarine sedimentation, Bristol Bay, Alaska: Quaternary Research, v. 45, p. 59-72.

Clapperton, C.M., Sugden, D.E., Kaufman, D.S., and McCulloch, R.D., 1995, The last glaciation in central Magellan Strait, Southernmost Chile: Quaternary Research 44, 133-148.

Kaufman, D.S., and Sejrup, H.P., 1995, Isoleucine epimerization in the high-molecular-weight fraction of Pleistocene Arctica: Quaternary Science Reviews (Quaternary Geochronology) 14, 337-350.

Kaufman, D.S. and Miller, G.H., 1995, Isoleucine epimerization and amino-acid composition in molecular-weight separations of Pleistocene Genyornis eggshell, Geochimica et Cosmochimica Acta 59, 2757-2765.

Kaufman, D.S., Miller, G.H., Stravers, J.A., and Andrews, J.T., 1993, Abrupt early Holocene (9.9-9.6 ka) ice-stream advance at the mouth of Hudson Strait, Arctic Canada: Geology 21, 1063 1066.

Kaufman, D.S., Miller, G.H., Stravers, J.A., Manley, W.F., and Duvall, M.L., 1993, Late glacial ice margins and deglacial chronology for southeastern Baffin Island and Hudson Strait, eastern Canadian ArcticÛReply: Canadian Journal of Earth Sciences 30, 1753-1758.

Kaufman, D.S., Carter, L.D., Miller, G.H., Farmer, G.L., and Budd, D.A., 1993, 87Sr/86Sr composition of Pliocene and Pleistocene molluscs from emerged marine deposits, North American Arctic: Canadian Journal of Earth Sciences 30, 519-534.

Kaufman, D.S. and Brigham-Grette, J., 1993, Aminostratigraphic correlations and paleotemperature implications, Pliocene-Pleistocene high-sea-level deposits, northwestern Alaska: Quaternary Science Reviews 12, 21-33.

Kaufman, D.S., 1992, Aminostratigraphy of Pliocene-Pleistocene high-sea-level deposits, Nome coastal plain and adjacent nearshore area, Alaska: Geological Society of America Bulletin 102, 40 52.

Kaufman, D.S. and Miller, G.H., 1992, Mini Review: Overview of amino acid geochronology: Comparative Biochemistry and Physiology 102B, 199-204.

Kaufman, D.S., Miller, G.H., and Andrews, J.T., 1992, Amino acid composition as a taxonomic tool for molluscan fossilsÛAn example from Pliocene-Pleistocene Arctic marine deposits: Geochimica et Cosmochimica Acta 56, 2445-2453.

Stravers, J.A., Miller, G.H., and Kaufman, D.S., 1992, Late glacial ice margins and deglacial chronology for southeastern Baffin Island and Hudson Strait, eastern Canadian Arctic: Canadian Journal of Earth Sciences 29, 1000-1017.

Kaufman, D.S., 1991, Late Cenozoic geologic history and placer-gold distribution, Nome near shore area, Alaska: Marine Mining 10, 49-71.

Kaufman, D.S., Walter, R.C., Brigham-Grette, J., and Hopkins, D.M., 1991, Middle Pleistocene age of the Nome River glaciation, northwestern Alaska: Quaternary Research 36, 277-293.

Miller, G.H. and Kaufman, D.S., 1991, Ice-sheet/ocean interaction at the mouth of Hudson Strait--A trigger for Younger Dryas cooling: Norsk Geologisk Tidsskrift 71, 149-151.

Waythomas, C.F. and Kaufman, D.S., 1991, Comment on: Latest Pleistocene increase in wind intensity recorded in eolian sediments: Quaternary Research 36, 360-365.

Miller, G.H. and Kaufman, D.S., 1990, Rapid fluctuations of the Laurentide Ice Sheet at the mouth of Hudson Strait--sNew evidence for ocean/ice-sheet interaction as a control on the Younger Dryas: Paleoceanography 5, 907-919.

Peck, B.J., Kaufman, D.S., and Calkin, P.E., 1990, Relative dating of moraines using moraine morphometric and boulder weathering criteria, Kigluaik Range, Alaska: Boreas 19, 227-239.

Kaufman, D.S., Calkin, P.E., Whitford, W.B., Przyble, B.J., Hopkins, D.M., Peck, B.J., and Nelson, R.E., 1989, Surficial geologic map of the Kigluaik Mountains area, Seward Peninsula, Alaska: U.S. Geological Survey Miscellaneous Field Studies Map 2074.

Kaufman, D.S. and Hopkins, D.M., 1989, Late Cenozoic geologic controls on placer-gold distribution in the Nome nearshore area: United States Geological Survey Bulletin 1903, 26-45.

Kaufman, D.S. and Calkin, P.E., 1988, Morphometric analysis of Pleistocene moraines in the Kigluaik Mountains, Alaska: Arctic and Alpine Research 20, 273-284.

Kaufman, D.S., Hopkins, D.M., and Calkin, P.E., 1988, Glacial geologic history of the Salmon Lake area, Seward Peninsula: United States Geological Survey Circular 1016, 91-94.

Yeend, W., Kaufman, D.S., and Till, A.B., 1988, Map showing placer gold in the Solomon, Bendeleben, and southern part of the Kotzebue quadrangles, western Alaska: United States Geological Survey Miscellaneous Field Studies Map 1838-C.

Riehle, J.R., Meyer, C.E., Ager, T.A., Kaufman, D.S., and Ackerman, R.E., 1987, The Aniakchak tephra deposit--A late Holocene marker horizon in western Alaska: United States Geological Survey Circular 998, 19-22.

Kaufman, D.S., 1986, Surficial geologic map of the Solomon, Bendeleben, and southern Kotzebue quadrangles, Alaska: United States Geological Survey Miscellaneous Field Studies Map 1838-A.

Kaufman, D.S., 1985, Crater Creek and Windy Creek faults, Seward Peninsula, Alaska: United States Geological Survey Circular 945, 22-25.

Other Published Reports and Reviews

Kaufman, D.S., 1996, Feasibility of coring last-interglacial deposits, Bristol Bay, Alaska: PALEoTIMES, The Paleoclimates from Arctic Lakes and Estuaries Newsletter 4, 6-7.

Kaufman, D.S., 1995, Major late Pleistocene glacial advance in Alaska investigated: The Nansen Ice Breaker: No. 7, p. 4-5.

Kaufman, D.S., 1993, Review of Dawson, A.G., 1992, "Ice Age Earth--Late Quaternary Geology and Climate," Routledge, 293 pp: Arctic and Alpine Research 25, 75-76.

Kaufman, D.S. and Williams, K.M., 1992, Radiocarbon date list VII: Baffin Island, NWT., Canada: University of Colorado, Institute of Arctic and Alpine Research Occasional Paper No. 48, 82 pp.

Kaufman, D.S., Farmer, G.L., Miller, G.H., Carter, L.D., and Brigham-Grette, J., 1990, Strontium isotopic dating of upper Cenozoic marine deposits, northwestern Alaska, in Pliocene climates--Scenario for global warming: U.S.Geological Survey Open-File Report 90-64, 17-21.

Kaufman, D.S. and Hopkins, D.M., 1986, Glacial history of the Seward Peninsula, in Hamilton, T.D., Reed, K.M., and Thorson, R.M., eds., Glaciation in Alaska--The geologic record: Anchorage, Alaska Geologic Society, 51-77.

Till, A.B., Dumoulin, J.A., Gamble, B.M., and Kaufman, D.S., and Carroll, P.I., 1986, Preliminary geologic map and fossil data from Solomon, Bendeleben, and southern Kotzebue quadrangles, Alaska: United States Geological Survey Open-File Report 86-276.

Kaufman, D.S. and Hopkins, D.M., 1985, Late Cenozoic radiometric dates, Seward and Baldwin Peninsulas and adjacent continental shelf, Alaska: U.S.G.S Open-File Report 85-374.

Abstracts

Axford, Y.L., Kaufman, D.S., Manley, W.M., and Briner, J.P., 1998, Overview of the Ahklun Mountains Project: Quaternary glacial, sea-level, and paleoclimatic history, southwestern Alaska: Geological Society of America Abstracts with Programs 30 (7), in press.

Kaufman, D.S., and Bright, J.E., 1998, Racemization in fossil and laboratory-heated ostracodes measured by reverse phase liquid chromatography: Perspectives in Amino Acid and Protein Geochemistry (Washington , DC), 44.

Briner, J.P., Swanson, T.W., Kaufman, D.S., and Caffee, M., 1998, A 36Cl-based chronology for Wisconsin glacier flucutations in the western Ahklun Mountains, southwestern Alaska: 28th Arctic Workshop (Boulder, Colorado), 28-30.

Manley, W.F., Kaufman, D.S., and Briner, J.P., 1998, GIS determination of modern and late Wisconsin equilibrium line altitudes in the Ahklun Mountains of southwestern Alaska: 28th Arctic Workshop (Boulder, Colorado), 107-108.

Kaufman, D.S., 1997, Determining enantiomeric (DL) amino acid ratios using reverse phase liquid chromatography--Applications to lacustrine ostracodes in the Bonneville basin: EOS, Transactions of the American Geophysical Union 48 (46), F759

Kaufman, D., Manley, W., Preece, S., Marincovich, L., Forman, S., and Layer, P., 1997, Preliminary report on the age, extent, and paleoclimatic significance of Pleistocene glaciations, coastal Ahklun Mountains, SW Alaska: Beringian Paleoenvironments Workshop, 78-82.

Kaufman, D.S., Bright, J.E., Oviatt, C.G., 1997, Improved amino acid geochronology using rapidly racemization amino acids in lacustrine ostracodes: Geological Society of America Abstracts with Programs 29 (6), 253.

Kaufman, D.S., 1997, An overview of new amino acid racemization studies in the Bonneville basin--Quaternary geochronologic, paleothermometric, and paleohydrogeographic results: The Great Basin Symposium on Glacial and Postglacial Drainage (no page numbers).

Light, A., and Kaufman, D.S., 1997, Amino acid paleotemperature reconstruction and radiocarbon shoreline chronology of the Lake Bonneville basin, USA: Geological Society of America Abstracts with Programs 29 (6), 253.

Bigelow, J.J., and Kaufman, D.S., 1997, Amino acid geochronology of the Lahontan basin: Geological Society of America Abstracts with Programs 29 (6), 437.

Manley, W.F., Kaufman, D.S., and Briner, J.P., 1997, GIS determination of late Wisconsin equilibrium line altitudes in the Ahklun Mountains of southwestern Alaska: Geological Society of America Abstracts with Programs 29 (6), 33.

Forman, S.L. and Kaufman, D.S., 1997, Late Quaternary oscillations of Lake Terreton, eastern Snake River Plain, Idaho: Geological Society of America Abstracts with Programs 29 (6), 253.

Briner, J.P., Kaufman, D.S., and Manley, W.F., 1997, Late Wisconsin glacial chronology of the western Ahklun Mountains, SW Alaska--Preliminary findings from Wattamuse valley: Beringian Paleoenvironments Workshop, 40-41.

Manley, W.F., Kaufman, D.S., 1997, Radiocarbon and relative-age evidence for restricted late Wisconsin glaciation, southern and western Ahklun Mountains, southeastern Beringia: Beringian Paleoenvironments Workshop, 99-100.

Brigham-Grette, J., Kaufman, D.S., and Werner, A., 1997, Pleistocene/Holocene paleoclimate and boundary conditions useful for Arctic climate model testing--Examples from Beringia: Modeling the arctic system--A workshop report on the state of modeling in the Arctic System Science Program. The Arctic Research Consortium of the U.S., Fairbanks, Alaska, 58-59.

Manley, W.F., and Kaufman, D.S., 1997, Preliminary soil and morphometric data constraining late Wisconsin ice limits in the southern and western Ahklun Mountains, southwestern Alaska: 27th Arctic Workshop Program and Abstracts (University of Ottawa), 163-164.

Light, A., and Kaufman, D., 1996, Refinements to the radiocarbon shoreline chronology of lake Bonneville, Great Basin, USA: EOS, Transactions, American Geophysical Union 77 (46), F304.

Bouchard, D., Kaufman, D., and Quade, J., 1996, Quaternary Bear River - Bonneville Basin paleohydrogeography reconstructed from the strontium isotopic composition of lacustrine fossils: American Quaternary Association 14th Biennial Meeting (Flagstaff, AZ, May, 1996), 66.

Light, A., and Kaufman, D., 1996, Amino-acid paleotemperature reconstruction for the Lake Bonneville Basin, Great Basin, USA: American Quaternary Association 14th Biennial Meeting (Flagstaff, AZ, May, 1996), 98.

Brigham-Grette, J., and Kaufman, D.S., 1996, Paleoclimate record of Pliocene-Pleistocene high sea-level events across central Beringia: American Quaternary Association 14th Biennial Meeting (Flagstaff, AZ, May, 1996), 9-11.

Manley, W.F., Miller, G.H., Duvall, M.L., and Kaufman, D.S., 1996, Sediment lithology as an indicator of glacial provenance and ice-flow patterns, southern Baffin Island, Eastern Canadian Arctic: American Quaternary Association 14th Biennial Meeting (Flagstaff, AZ, May, 1996), 105.

Hochberg, A., and Kaufman, D.S., 1995, Aminostratigraphy of Thatcher Basin, southeastern Idaho--Reassessment of Pleistocene lakes: Geological Society of America Abstracts with Programs 27 (6), A-322.

Stilwell, K.B., and Kaufman, D.S., 1995, Emergent postglacial shorelines of Naknek and Iliamna Lakes, southwestern Alaska: Geological Society of America Abstracts with Programs 27 (6), A 60.

Kaufman, D.S., Thompson, C.H., and Lea, P.D., 1995, Re-evaluation of pre-late-Wisconsin glacial deposits, Naknek River area, SW Alaska: Geological Society of America Abstracts with Programs 27 (5), 57.

Stilwell, K.B., and Kaufman D.S., 1995, Correlation of late Wisconsin moraines in the Iliamna, Naknek/Brooks Lake area, southwestern Alaska: Geological Society of America Abstracts with Programs 27 (5), 79.

Kaufman, D.S., Lea, P.D., and Forman, S.L., 1994, Early stage 5 glaciation, NE Bristol Bay, Alaska: Geological Society of America Abstracts with Programs 26 (7), A-514.

Brigham-Grette, J., Hopkins, D.M., Carter, L.D., Kaufman, D.S., Marincovich, L., 1994, Character and climate of the last interglacial (oxygen isotope substage 5e) in the Bering Strait and Arctic Alaska as determined from nearshore marine deposits: Geological Society of America Abstracts with Programs 26 (7), A-514.

Thompson, C.H., Kaufman, D.S., and Forman, S.L., 1994, Quaternary glaciogenic sediments, Naknek River Valley, SW Alaska: Geological Society of America Abstracts with Programs 26 (7), A-126.

Kaufman, D.S., Lea, P.D., Forman, S.L., 1994, Early Stage 5 glacial-marine sedimentation, northeastern Bristol Bay, Alaska: American Quaternary Association 13th Biennial Meeting (University of Minnesota, Minneapolis), 107.

Kaufman, D.S., Lea, P.D., Forman, S.L., and Thompson, C.H., 1994, Geochronology of pre late Wisconsin glacial-marine sedimentation, northeastern Bristol Bay, Alaska: 24th Arctic Workshop (University of Colorado, Boulder), 122-123.

Thompson, C.H., Lea, P.D., and Kaufman, D.S., 1994, Late(?) Wisconsin glaciations in the Wood River Range, southwestern Alaska: 24th Arctic Workshop (University of Colorado, Boulder), 163-164.

Ledesma Vezquez, J., and Kaufman D.S., 1994, Using rocky shorelines in neotectonic analysis: 3rd Congress on Marine Sciences, La Habana, Cuba.

Kaufman, D.S. and Sejrup, H.P., 1993, Isoleucine epimerization in the high-molecular-weight fraction of Arctica from SW Norway: 23rd Arctic Workshop Abstracts (Byrd Polar Research Center, The Ohio State University, April 1-3, 1993): BPRC Miscellaneous Series M-322, 47-48.

Miller, G.H., Manley, W., Duvall, M., and Kaufman, D., 1993, Ice-sheet/ocean interactions at the mouth of Hudson Strait, Arctic Canada: EOS, Transactions, American Geophysical Union 74, 359.

Lea, P.D., Fish, A.M., and Kaufman, D.S., 1993, Pleistocene glacial-estuarine deposits in the Bristol Bay region, southwestern Alaska: Geological Society of America Abstracts with Program 25 (6), 224.

Kaufman, D.S., Miller, G.H., Gray, J.T., Stravers, J.A., Lauriol, B., Bruneau, D., and Jull A.J.T., 1992, Chronology and configuration of late-glacial (12-8 ka) fluctuations of the Labrador Dome at the mouth of Hudson Strait: 22nd Arctic and Alpine Research Workshop Program and Abstracts (University of Colorado at Boulder, March 5-7, 1992), 78-80.

Ager, T.A. and Kaufman, D.S., 1992 Middle Miocene pollen floras from central Seward Peninsula, Alaska--Paleovegetation and paleoclimate reconstructions: 22nd Arctic Workshop Program and Abstracts (University of Colorado at Boulder, March 5-7, 1992), 4-6.

Duvall, M.L. and Kaufman, D.S., 1992, Preliminary ice-flow data from mid-Frobisher Bay, southeastern Baffin Island, Canada: 22nd Arctic Workshop Program and Abstracts (University of Colorado at Boulder, March 5-7, 1992), 37-39.

Manley, W.F. and Kaufman, D.S., 1992, Late-glacial patterns of ice flow, glaciomarine sedimentation, and sea-level change near Lake Harbour, southernmost Baffin Island: 22nd Arctic Workshop Program and Abstracts (University of Colorado at Boulder, March 5-7, 1992), 98-100.

Jackson, M., and others (28), 1992, Trans-Himalayan geodesy: EOS, Transactions, American Geophysical Union 72, 112.

Kaufman, D.S., 1991, Chronostratigraphy of Pliocene-Pleistocene high-sea-level deposits, Nome, Alaska: Geological Society of America Abstracts with Program 23(5), 223.

Kaufman, D.S., Farmer, G.L., Miller, G.H., Carter, L.D., and Brigham-Grette, J., 1990, Strontium isotopic dating of upper Cenozoic marine deposits, northwestern Alaska: American Association of Petroleum Geologists 1990 Annual Convention Official Program, 114.

Kaufman, D.S. and Miller, G.H., 1990, New approaches to discerning aminozones and approximating the rate of isoleucine epimerizationÛAn example from Pliocene marine deposits of northwestern Alaska: Geological Society of America Abstracts with Program 22 (7), 147.

Brigham-Grette, J., and Kaufman, D.S., 1990, Latitudinal transect and aminostratigraphic correlation of Plio/Pleistocene marine beds, northern and western Alaska: Geological Society of America Abstracts with Program 22 (7), 147.

Kaufman, D.S., Hopkins, D.M., Brigham-Grette, J., and Miller, G.H., 1989, Amino acid geochronology of marine and glacial events at Nome, Alaska: Geological Society of America Abstracts with Program 21 (6), 210.

Hopkins, D.M., Brigham-Grette, J., and Kaufman, D.S., 1989, Age and significance of the Anaktuvuk/Nome River glaciation, north-central Beringia: 18th Arctic Workshop Program and Abstracts (Lethbridge, Alberta, April 22-24, 1989), 27.

Hopkins, D.M., Brigham, J.K., and Kaufman, D.S., 1988, Quaternary correlations across Bering Strait: Conference of Arctic and Nordic Countries on Coordination of Research in the Arctic (Leningrad, Dec. 12-15), 1988.

Kaufman, D.S., 1987, Morphometric analysis of moraines and its application to the glacial sequence of the Kigluaik Mountains, Alaska: Geological Society of America Abstracts with Program 19 (6), 393.

Calkin, P.E., Przyble, B.J., and Kaufman, D.S., 1987, Latest Quaternary glaciation, Kigluaik Mountains, northwestern Alaska: Geological Society of America Abstracts with Programs 19 (1), 8.