B.S., Florida Institute of Technology (Oceanography) 1975
M.S., University of Rhode Island (Oceanography) 1980
Ph.D., Massachusetts Institute of Technology/Woods Hole Oceanographic Institution (Oceanography) 1987

Noble gas geochemistry
Geodynamics of the Earth's mantle
Isotope geochemistry and petrogenesis at ocean ridges, islands and continental rifts
Magmatic volatiles

My research centers on the isotope geochemistry of volcanic rocks from mid-ocean ridges, ocean islands and continental rifts. Its primary focus is on using helium isotopes, in conjunction with other chemical and isotopic analyses, to study the structure and dynamics of Earth's interior, degassing of the Earth, the origin of magma in different tectonic environments, and the evolution of volcanic systems. Because the most important terrestrial source of ³He is degassing of primordial volatiles from the Earth's interior, the ³He/⁴He ratio is a sensitive and useful tracer of deep vs. shallow mantle sources. Variations in the isotopic makeup of helium and the other noble gases therefore provide fundamental insights into flow dynamics within the Earth.

Spatial and temporal variations in helium isotopes along mid-ocean ridges, especially the ultra-slow spreading Gakkel Ridge (Arctic Ocean). Galapagos Spreading Center, and Lau Basin

• Debaille, V., R. G. Tr¿nnes, A. D. Brandon, T. E. Waight, D. W. Graham, C.-T. A. Lee (2009) Primitive off-rift basalts from Iceland and Jan Mayen: Os isotopic evidence for a mantle source containing enriched subcontinental lithosphere. Geochim. Cosmochim. Acta, in press. doi: 10.1016/j.gca.2009.03.002. (pdf)
  
  
• Graham, D. W., M. R. Reid, B. T. Jordan, A. L. Grunder, W. P. Leeman, J. E. Lupton (2009) Mantle source provinces beneath the northwestern USA delimited by helium isotopes in young basalts. J. Volc. Geotherm. Res., in press. (pdf)
  
  
• Russo, C. J., K. H. Rubin and D. W. Graham (2009). Mantle melting and magma supply to the Southeast Indian Ridge: the roles of lithology and melting conditions from U-series disequilibria. Earth Planet. Sci. Lett. 278, 55-66. (pdf)
  
  
• Goldstein, S. L., G. Soffer, C. H. Langmuir, K. A. Lehnert, D. W. Graham and P. J. Michael (2008) Origin of a "southern hemisphere" geochemical signature in the Arctic upper mantle. Nature 453, 89-94. (pdf)
  
  
• VanLaningham, S., R. A. Duncan, N. G. Pisias and D. W. Graham (2008) Tracking fluvial response to climate change in the Pacific Northwest: a combined provenance approach using Ar and Nd isotopic systems on fine-grained sediments. Quat. Sci. Rev. 27, 497-517. (pdf)
  
  
• Nicolaysen, K. P., F. A. Frey, J. J. Mahoney, K. T. M. Johnson and D. W. Graham (2007) Influence of the Amsterdam/St. Paul hot spot along the Southeast Indian Ridge between 77° and 88°E: Correlations of Sr, Nd, Pb and He isotopic variations with ridge segmentation. Geochem. Geophys. Geosyst. 8, Q09007, doi:10.1029/2006GC001540. (pdf)
  
  
• Brandon, A. D., D. W Graham, T. Waight and B. Gautason (2007) ¹⁸⁶Os and ¹⁸⁷Os enrichments and high-³He/⁴He sources in the Earth's mantle: evidence from Icelandic picrites. Geochim. Cosmochim. Acta 71, 4570-4591. doi: 10.1016/j.gca2007.07.015. (pdf)
  
  
• Chen, Y., Y. Zhang, D. Graham, S. Su and J. Deng (2007) Geochemistry of Cenozoic basalts and mantle xenoliths in Northeast China. Lithos 96, 108-126. (pdf)
  
  
• Graham, D. W., J. Blichert-Toft, C. J. Russo, K. H. Rubin and F. Albarede (2006) Cryptic striations in the upper mantle revealed by hafnium isotopes in Southeast Indian Ridge basalts. Nature 440, 199-202. (pdf)
  
  
• Agranier, A., J. Blichert-Toft, D. W. Graham, V. Debaille, P. Schiano and F. Albarede (2005) The spectra of isotopic heterogeneities along the Mid-Atlantic Ridge. Earth Planet. Sci. Lett. 238, 96-109. (pdf)
  
  
• Graham, D. W. (2005) Neon illuminates the mantle. Nature 433, 25-26. (pdf)
  
  
• Keller, R. A., D. W. Graham, K. A. Farley, R. A. Duncan, J. E. Lupton (2004) Cretaceous to Recent record of elevated ³He/⁴He along the Hawaiian-Emperor volcanic chain. Geochem. Geophys. Geosyst. 5, Q12L05, doi:10.1029/2004GC000739. (pdf)
  
  
• Burnard, P. G., D. W. Graham and K. A. Farley (2004) Fractionation of noble gases (He, Ar) during MORB mantle melting? A case study on the Southeast Indian Ridge. Earth Planet. Sci. Lett. 227, 457-472. (pdf)
  
  
• Ito, G., J. Lin and D. Graham (2003) Observational and theoretical studies of the dynamics of mantle plume-mid-ocean ridge interaction. Rev. Geophys. 41, 1017-1041, DOI: 10.1029/2002RG000117. (pdf)
  
  
• Michael, P. J., C. H. Langmuir, H. J. B. Dick, J. E. Snow, S. L. Goldstein, D. W. Graham, K. Lehnert, G. Kurras, W. Jokat, R. Mühe, and H. N. Edmonds (2003) Magmatic and amagmatic seafloor generation at the ultraslow-spreading Gakkel ridge, Arctic Ocean. Nature 423, 956-962. (pdf)
  
  
• Edmonds, H. N., P. J. Michael, E. T. Baker, D. P. Connelly, J. E. Snow, C. H. Langmuir, H. J. B. Dick, R. Mühe, C. R. German and D. W. Graham (2003) Discovery of abundant hydrothermal venting on the ultra-slow spreading Gakkel Ridge, Arctic Ocean. Nature, 421, 252-256. (pdf)
  
  
• Detrick, R. S., J. M. Sinton, G. Ito, J. P. Canales, M. Behn, T. Blacic, B. Cushman, J. E. Dixon, D. W. Graham and J. Mahoney (2002) Correlated geophysical, geochemical and volcanological manifestations of plume-ridge interaction along the Galapagos Spreading Center. Geochem. Geophys. Geosyst. 3, 8501, doi:10.1029/2002000350. (pdf)
  
  
• Burnard, P. G., D. W. Graham and K. A. Farley (2002) Mechanisms of magmatic gas loss along the Southeast Indian Ridge and the Amsterdam-St. Paul Plateau. Earth Planet. Sci. Lett. 203, 131-148. (pdf)
  
  
• Mahoney, J. J., D. W. Graham, D. M. Christie, K. T. M. Johnson, L. S. Hall and D. L. VonderHaar (2002) Between a hot spot and cold spot: isotopic variation in the Southeast Indian Ridge asthenosphere, 86°-118°E. J. Petrol. 43, 1155-1176. (pdf)
  
  
• Graham, D. W. (2002) Noble gas isotope geochemistry of mid-ocean ridge and ocean island basalts; characterization of mantle source reservoirs. In: Noble Gases in Geochemistry and Cosmochemistry, eds. D. Porcelli, R. Wieler and C. Ballentine. Reviews in Mineralogy and Geochemistry, Mineral. Soc. Amer., Washington, D.C., pp. 247-318. (pdf)
  
  
• Graham, D. W., J. E. Lupton, F. J. Spera and D. M. Christie (2001) Upper mantle dynamics revealed by helium isotope variations along the Southeast Indian Ridge. Nature 409, 701-703. (pdf)
  
  
• Johnson, K. T. M., D. W. Graham, K. H. Rubin, K. Nicolaysen, D. S. Scheirer, D. W. Forsyth, E. T. Baker and L. M. Douglas Priebe (2000) Boomerang Seamount: the active expression of the Amsterdam-St. Paul hotspot, Southeast Indian Ridge. Earth Planet. Sci. Lett. 183, 245-259. (pdf)
  
  
• Scheirer, D. S., D. W. Forsyth, J. A. Conder, M. A. Eberle, S.-H. Hung, K. T. M. Johnson and D. W. Graham (2000) Anomalous seafloor spreading of the Southeast Indian Ridge near the Amsterdam-St. Paul Plateau. J. Geophys. Res. 105, 8243-8262. (pdf)
  
  
• Hauff, F., K. Hoernle, G. Tilton, D. W. Graham and A. C. Kerr (2000) Large volume recycling of oceanic lithosphere over short time scales: geochemical constraints from the Caribbean Large Igneous Province. Earth Planet. Sci. Lett. 174, 241-244. (pdf)
  
  
• Graham, D. W. and J. E. Lupton (1999) Helium isotopes in historical lavas from Mount Vesuvius: comment on 'Noble gas isotopic ratios from historical lavas and fumaroles at Mount Vesuvius' by D. Tedesco et al.. Earth Planet. Sci. Lett. 174, 241-244. (pdf)
  
  
• Furman, T. H. and D. W. Graham (1999) Erosion of lithospheric mantle beneath the East African Rift System: geochemical evidence from the Kivu volcanic province. Lithos, 48, 237-262. (pdf)
  
  
• Graham, D. W., K. T. M Johnson, L. M. Douglas Priebe and J. E. Lupton (1999) Hotspot-ridge interaction along the Southeast Indian Ridge near Amsterdam and St. Paul islands: helium isotope evidence. Earth Planet. Sci. Lett. 167, 297-310. (pdf)
  
  
• Sturm, M., E. M. Klein, D. W. Graham and J. L. Karsten (1999) Age constraints on crustal recycling to the mantle beneath the southern Chile Ridge: He-Pb-Sr-Nd systematics. J. Geophys. Res., 104, 5097-5114. (pdf)
  
  
• Graham, D. W. (1999) Helium Isotopes. In: The Encyclopedia of Geochemistry, ed. C. P. Marshall and R. W. Fairbridge, Kluwer Academic Publishers, pp.314-315. (pdf)
  
  
• Graham, D. W., L. M. Larsen, B. B. Hanan, M. Storey, A. K. Pedersen and J. E. Lupton (1998) Helium isotope composition of the early Iceland mantle plume inferred from the Tertiary picrites of West Greenland. Earth Planet. Sci. Lett. 160, 241-256. (pdf)
  
  
• Garcia, M. O., K. H. Rubin, M. D. Norman, J. M. Rhodes, D. W. Graham, D. W. Muenow and K. Spencer (1998) Petrology and geochronology of basalt breccia from the 1996 earthquake swarm of Loihi Seamount, Hawaii: magmatic history of its 1996 eruption. Bull. Volcanol. 59, 577-592. (pdf)
  
  
• Burnard, P., D. Graham and G. Turner (1997) Vesicle-specific noble gas analyses of "popping rock": implications for primordial noble gases in Earth. Science 276, 568-571. (pdf)
  
  
• Graham, D. W., P. Castillo, J. E. Lupton and R. Batiza (1996) Correlated helium and strontium isotope ratios in South Atlantic near-ridge seamounts and implications for mantle dynamics. Earth Planet. Sci. Lett. 144, 491-504. (pdf)
  
  
• Hanan, B. B. and D. W. Graham (1996) Lead and helium isotope evidence from oceanic basalts for a common deep source of mantle plumes. Science 272, 991-995. (pdf)
  
  
• Reid, M. R. and D. W. Graham (1996) Resolving lithospheric and sub-lithospheric contributions to helium isotope variations in basalts from the southwestern US. Earth Planet. Sci. Lett. 144, 213-222. (pdf)
  
  
• Hoernle, K., Y.-S. Zhang and D. Graham (1995) Seismic and geochemical evidence for large-scale mantle upwelling beneath the eastern Atlantic and western and central Europe. Nature 374, 34-39. (pdf)
  
  
• Graham, D. W., P. Allard, C. K. Kilburn, F. J. Spera and J. E. Lupton (1993) Helium isotopes in some historical lavas from Mount Vesuvius. J. Volc. Geotherm. Res. 58, 359-366. (pdf)
  
  
• Graham, D. W., D. M. Christie, K. S. Harpp and J. E. Lupton (1993) Mantle plume helium in submarine basalts from the Galápagos Platform. Science 262, 2023-2026. (pdf)
  
  
• Lupton, J. E., D. W. Graham, J. R. Delaney and H. P. Johnson (1993) Helium isotope variations in Juan de Fuca Ridge basalts. Geophys. Res. Lett. 20, 1851-1854. (pdf)
  
  
• Graham, D. W., W. J. Jenkins, J.-G. Schilling, G. Thompson, M. D. Kurz and S. E. Humphris (1992) Helium isotope geochemistry of mid-ocean ridge basalts from the South Atlantic. Earth Planet. Sci. Lett. 110, 133-147. (pdf)
  
  
• Graham, D. W., S. E. Humphris, W. J. Jenkins and M. D. Kurz (1992) Helium isotope geochemistry of some volcanic rocks from St. Helena. Earth Planet. Sci. Lett. 110, 121-131. (pdf)
  
  
• Graham, D. and P. Sarda (1991) Reply to comment by T. M. Gerlach on "Mid-ocean ridge popping rocks: implications for degassing at ridge crests". Earth Planet. Sci. Lett. 105, 568-573. (pdf)
  
  
• Lupton, J. and D. Graham (1991) Comment on "A ten-year decrease in the atmospheric helium isotope ratio possibly caused by human activity" by Y. Sano et al.. Geophys. Res. Lett. 18, 482-485. (pdf)
  
  
• Graham, D., J. Lupton, F. Albarde and M. Condomines (1990) Extreme temporal homogeneity of helium isotopes at Piton de la Fournaise, Réunion Island. Nature 347, 545-548. (pdf)
  
  
• Sarda, P. and D. Graham (1990) Mid-ocean ridge popping rocks: implications for degassing at ridge crests. Earth Planet. Sci. Lett. 97, 268-289. (pdf)
  
  
• Graham, D. W., A. Zindler, M. D. Kurz, W. J. Jenkins, R. Batiza and H. Staudigel (1988) He, Pb, Sr and Nd isotope constraints on magma genesis and mantle heterogeneity beneath young Pacific seamounts. Contrib. Mineral. Petrol. 99, 446-463. (pdf)
  
  
• Graham, D. W., W. J. Jenkins, M. D. Kurz and R. Batiza (1987) Helium isotope disequilibrium and geochronology of glassy submarine basalts. Nature 326, 384-386. (pdf)
  
  
• Hudson, A., M. L. Bender and D. W. Graham (1986) Iron enrichments in hydrothermal plumes over the East Pacific Rise. Earth Planet. Sci. Lett. 79, 250-254. (pdf)
  
  
• Bender, M. L., A. Hudson, D. W. Graham, R. O. Barnes, M. Leinen and D. Kahn (1985) Diagenesis and advection reflected in pore water chemistry on the western flank of the East Pacific Rise, 20 degrees south. Earth Planet. Sci. Lett. 76, 71-83. (pdf)
  
  
• Graham, D. W., M. L. Bender, D. F. Williams and L. D. Keigwin, Jr. (1982) Strontium/Calcium ratios in Cenozoic planktonic foraminfera. Geochim. Cosmochim. Acta 46, 1282-1292. (pdf)
  
  
• Klinkhammer, G. P., D. T. Heggie and D. W. Graham (1982) Metal diagenesis in oxic marine sediments. Earth Planet. Sci. Lett. 61, 211-219. (pdf)
  
  
• Emerson, S., V. Grundmanis and D. W. Graham (1982) Carbonate chemistry in marine pore waters: MANOP sites C and S. Earth Planet. Sci. Lett. 61, 220-232. (pdf)
  
  
• Graham, D. W., B. H. Corliss, M. L. Bender and L. D. Keigwin, Jr. (1981) Carbon and oxygen isotopic disequilibria of Recent deep-sea benthic foraminifera. Mar. Micropaleo. 6, 483-497. (pdf)
  
  
• Bender, M. L. and D. W. Graham (1981) On Late Miocene abyssal hydrography. Mar. Micropaleo. 6, 451-464. (pdf)
  
  
• Bender, M. L. and D. W. Graham (1978) Long term constraints on the global marine carbonate system. J. Mar. Res. 36, 551-567. (pdf)