Randall A Keller
Department of Geosciences
Oregon State University
104 Wilkinson Hall
Corvallis, OR 97331 USA
E-mail Address:
kellerr, followed by the "at" symbol, and then geo.oregonstate.edu
  Office: Wilkinson Hall, Room 113 Telephone: 541-737-7648
Fax: 541-737-1200


B.S., University of Florida (Geology), with Honors, 1981-1985
M.S., Oregon State University (Marine Geology), 1985-1989
Polish Academy of Sciences, Krakow (Fulbright Fellowship), 1989-1991
Ph.D., Oregon State University (Marine Geology), 1991-1996

Research Interests:

Chemical geodynamics of mantle plumes and subduction zones
Hotspot - spreading ridge interaction
Volcanology of seamounts
Origin of diamonds

Current Research Projects:

Volcanic history and evolution of seamounts in the Gulf of Alaska
Late Cretaceous/Early Tertiary plume-ridge interaction at the Hawaiian hotspot
Geochemistry and geochronology of volcanism in the Bransfield Strait backarc basin, Antarctica
Origin of late Tertiary-Quaternary basaltic magmatism on the northern Antarctic Peninsula and southern South America


Chaytor, J.D., R.A. Keller, R.A. Duncan, and R.P. Dziak, 2007, Seamount morphology in the Bowie and Cobb hotspot trails, Gulf of Alaska. Geochem. Geophys. Geosys. 8(9), doi:10.1029/2007GC001712. (Manuscript in PDF)

Keller, R.A., D.W. Graham, K.A. Farley, R.A. Duncan, and J.E. Lupton, 2004, Cretaceous to recent record of elevated helium isotopes along the Hawaiian-Emperor volcanic chain. Geochem. Geophys. Geosys. 5(12), doi:10.1029/2004GC000739. (Manuscript in PDF)

Fretzdorff, S., T.J. Worthington, K.M. Haase, R. Hékinian, R.A. Keller, and P. Stoffers, 2004, Magmatism in the Bransfield Basin: Rifting of the South Shetland Arc? J. Geophys. Res., 109, B12208, doi:10.1029/2004JB003046. (Manuscript in PDF)

Duncan, R.A., and R.A. Keller, 2004, Radiometric ages for basement rocks from the Emperor Seamounts, ODP Leg 197. Geochem. Geophys. Geosys. 5, doi:10.1029/2004GC000704. (Manuscript in PDF)

Keller, R.A., M.R. Fisk, J.L. Smellie, J.A. Strelin, L.A. Lawver, and W.M. White, 2002, Geochemistry of backarc basin volcanism in Bransfield Strait, Antarctica: Subducted contributions and along-axis variations. J. Geophys. Res. 107(B8):4-1-4-17. (Manuscript in PDF)

Shipboard Scientific Party, 2002, Proceedings ODP, Initial Reports, 197 (J.A. Tarduno, R.A. Duncan, and D.W. Scholl, eds.), College Station, Texas.

Klinkhammer, G.P., C.S. Chin, R.A. Keller, A. Dahlmann, H. Sahling, G. Sarthou, S. Petersen, F. Smith, and C. Wilson, 2001, Discovery of new hydrothermal vent sites in Bransfield Strait, Antarctica, Earth Planet. Sci. Lett. 193: 395-407. (Manuscript in PDF)

Keller, R.A., M.R. Fisk, and W.M. White, 2000, Isotopic evidence for Late Cretaceous plume-ridge interaction at the Hawaiian hotspot. Nature, 405: 673-676. (Manuscript in PDF)

Taylor, L.A., R.A. Keller, G.A. Snyder, W. Wang, W.D. Carlson, E.H. Hauri, T. McCandless, K.-R. Kim, N.V. Sobolev, and S.M. Bezborodov, 2000, Diamonds and their mineral inclusions, and what they tell us: A detailed "pull-apart" of a diamondiferous eclogite. International Geology Review 42: 959-983. (Manuscript in PDF)

Keller, R.A., L.A. Taylor, G.A. Snyder, V.N. Sobolev, W.D. Carlson, S.M. Bezborodov, and N.V. Sobolev, 1999, Detailed pull-apart of a diamondiferous eclogite xenolith: Implications for mantle processes during diamond genesis, Proceedings, 7th Intl. Kimb. Conf., Cape Town, 1: 397-402. (Manuscript in PDF)

Ruzicka, A., L.R. Riciputi, L.A. Taylor, G.A. Snyder, J. Greenwood, Keller, R.A., G.P. Bulanova, and H.J. Milledge, 1999, Petrogenesis of mantle-derived sulfide inclusions in Yakutian diamonds: Chemical and isotopic disequilibrium during quenching from high temperatures, Proceedings, 7th Intl. Kimb. Conf., Cape Town, 2: 741-749.

Strelin, J.A. G. Re, R. Keller, and E. Malagnino, 1999, New evidence concerning the Plio-Pleistocene landscape evolution of southern Santa Cruz region, J. So. Am. Earth Sci., 12: 333-341.

Keller, R.A., R.A. Duncan, and M.R. Fisk, 1997, 16 m.y. of hotspot and nonhotspot volcanism on the Patton-Murray seamount platform, Gulf of Alaska, Geology, 25(6): 511-514.

Lawver, L.A., B.J. Sloan, D.H.N. Barker, M. Ghidella, R.P. von Herzen, R.A. Keller, G.P. Klinkhammer, and C.S. Chin, 1996, Distributed active extension in Bransfield Basin, Antarctic Peninsula: Evidence from multibeam bathymetry, GSA Today, 6(11):1-6. (Manuscript in PDF)

Keller, R.A., 1996, Geochemistry, petrology, and geochronology of hotspot seamounts in the North Pacific and arc/backarc volcanism on the northern Antarctic Peninsula. Ph.D. thesis, Oregon State University (M.R. Fisk, advisor), 127 pp.

Keller, R.A., R.A. Duncan, and M.R. Fisk, 1995, Geochemistry and 40Ar/39Ar Geochronology of Basalts from ODP Leg 145 (North Pacific Transect), in D.K. Rea, I.A. Basov, D.W. Scholl, and J.A. Allan (Eds.), Proc. ODP, Sci. Results, 145, College Station, TX (Ocean Drilling Program), 333-344.

Lawver, L.A., R.A. Keller, M.R. Fisk, and J.A. Strelin, 1995, Bransfield Strait, Antarctic Peninsula: Active extension behind a dead arc, in B. Taylor (Ed.), Back-Arc Basins: Tectonics and Magmatism. Plenum Press, 315-342. (Manuscript in PDF)

Keller, R.A., J.A. Strelin, L.A. Lawver, and M.R. Fisk, 1994, Dredging young volcanic rocks in Bransfield Strait. Antarctic Journal U.S., 1993 Review, 100-102.

Keller, R.A., 1993, Igneous petrology chapters in D.K. Rea, I.A. Basov, T.R. Janacek, A. Palmer-Julson, et al., Proc. ODP, Init. Repts., 145, College Station, TX (Ocean Drilling Program).

Keller, R.A., and J.A. Strelin, 1993, Alkalic basalts and ultramafic xenoliths on James Ross Island, Antarctic Peninsula. Antarctic Journal U.S., 1992 Review, 22-23.

Keller, R.A., 1992, Geological fieldwork on Deception Island and King George Island, South Shetland Islands. Antarctic Journal U.S., 1991 Review, 46.

Keller, R.A., and M.R. Fisk, 1992, Quaternary marginal basin volcanism in the Bransfield Strait as a modern analogue of the southern Chilean ophiolites. in L. Parson, B. J. Murton, and P. Browning (Eds.), Ophiolites and Their Modern Oceanic Analogues, Geol. Soc. Spec. Publ. No. 60, 155-170.

Keller, R.A., M.R. Fisk, and W.M. White, 1992, Geochemistry of Quaternary volcanism in the Bransfield Strait and South Shetland Islands: Preliminary results. Antarctic Journal U.S., 1991 Review, 132-133.

Keller, R.A., M.R. Fisk, W.M. White, and K. Birkenmajer, 1992, Isotopic and trace element constraints on mixing and melting models of marginal basin volcanism, Bransfield Strait, Antarctica. Earth Planet. Sci. Lett. 111:287-303.

Keller, R.A., 1990, Geochemistry of Quaternary, rift-related volcanism in the Bransfield Strait, Antarctica. M.S. thesis,Oregon State University (M.R. Fisk, advisor), 123 pp.

Birkenmajer, K., and R.A. Keller, 1990, Pleistocene age of the Melville Peak volcano, King George Island, West Antarctica, by K-Ar dating. Bull. Polish Acad. Sci., Earth Sci., 38:17-24.

Keller, R.A., and M.R. Fisk, 1989, Rifting and volcanism in the Bransfield Strait and South Shetland Islands, Antarctic Journal U.S., 1988 Review, 23:102-104.

Keller, R.A., 1985, Petrology and tectonics of the Woodlark Basin; with a look at some unusual NaTi basalts and their tectonic significance. B.S. Honors Thesis, University of Florida (M.R. Perfit, advisor), 47 pp.