Randy Keller


Wilkinson Hall

Wilkinson Hall 258

2601 SW Orchard Avenue

2601 SW Orchard Avenue
Corvallis, Oregon 97331

Profile Field Tabs

Brief Research Interests: 

Marine geology, igneous geochemistry



Marine Geology, Igneous Geochemistry

Research Interests

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


BS Geology (with Honors), University of Florida, 1985
MS Marine Geology, Oregon State University, 1989
PhD Marine Geology, Oregon State University, 1996


GEO 101 - The Solid Earth
GEO 103 - Exploring the Deep: Introduction to Oceanography (online via OSU Extended Campus)
GEO 305 - Living with Active Cascades Volcanoes (online via OSU Extended Campus)


Anderson, D.W., A.E. Saal, S.M. Mallick, J. Wang, T.R. Riley, R.A. Keller, and K.M. Haase, 2024, Source variations in volatile contents of Bransfield Strait back-arc and Phoenix/West Scotia mid-ocean ridge lavas, northern Antarctic Peninsula. Chemical Geology. https://doi.org/10.1016/j.chemgeo.2023.121839

Anderson, D.W., A.E. Saal, J.I. Lee, S.M. Mallick, T.R. Riley, R.A. Keller, and K.M. Haase, 2023, Tracing mantle components and the effect of subduction processes beneath the northern Antarctic Peninsula. Geochim. Cosmochim. Acta, https://doi.org/10.1016/j.gca.2022.11.018

Calabozo, F.M., J.A. Strelin, Y. Orihashi, H. Sumino, R.A. Keller, 2015, Volcano-ice-sea interaction in northwest James Ross Island, Antarctic Peninsula. J. Volc. Geotherm. Res. doi:10.1016/j.jvolgeores.2015.03.011

Chadwick, J., R, Keller, G. Kamenov, G. Yogodzinski, and J. Lupton, 2014, The Cobb hot spot: HIMU-DMM mixing and melting controlled by a progressively thinning lithospheric lid. Geochem. Geophys. Geosys. 15, 3107?3122, doi:10.1002/2014GC005334

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.

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.

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.

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.

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

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.

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.

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.

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.

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.