Greg Valentine home page

 

 

Greg A. Valentine

Professor, Department of Geology

Director, Center for Geohazards Studies

State University of New York, University at Buffalo

411 Cooke Hall

Buffalo, NY  14260-1350   USA

Email:   gav4@buffalo.edu

 

 

Research Interests: Volcanic risk, basaltic volcanism, pyroclastic deposits, volcano fluid dynamics & modeling, phreatomagmatism.  More information

 

Current Work and Student Projects:  Lunar Crater Volcanic Field; Phreatomagmatic processes; VHub – Cyberinfrastructure for Volcano Eruption and Hazards Modeling and Simulation.  More information

 

Degrees:  Ph.D., Geological Sciences, University of California Santa Barbara, 1988

               B.S. Geological Engineering & Geology, New Mexico Institute of Mining and Technology, 1984

 

Previous positions:  1997-2007 Group Leader, 1989-1996 Technical Staff Member

                                Los Alamos National Laboratory, Earth and Environmental Sciences Division

 

Recent publications

     Palladino DM, Valentine GA, Sottili G, Taddeucci J (2015) Maars to calderas:  end-members on a spectrum of explosive volcanic depressions.  Frontiers in Earth Science 3:36, doi: 10.3389/feart.2015.00036

 

Sweeney MR, Valentine GA (2015) Transport and mixing dynamics from explosions in debris-filled volcanic conduits: Numerical results and implications for maar-diatreme volcanoes.  Earth and Planetary Science Letters 425: 64-76, doi:10.1016/j.epsl.2015.05.038

 

 Graettinger AH, Valentine GA, Sonder I, Ross P-S, White JDL (2015) Facies distribution of ejecta in analog tephra rings from experiments with single and multiple subsurface explosions.  Bulletin of Volcanology 77:66, doi:10.1007/s00445-015-0951-x

 

Valentine GA, Connor CB (2015) Basaltic volcanic fields.  In:  The Encyclopedia of Volcanoes, 2nd Edition, H. Sigurdsson (ed.), Elsevier, 423-439, doi: 10.1016/B978-0-12-385938-9.00023-7

 

 Harp AG, Valentine GA (2015) Shallow plumbing and eruptive processes of a scoria cone built on steep terrain.  Journal of Volcanology and Geothermal Research 294:37-55, doi:10.1016/j.jvolgeores.2015.02.008

 

 Cortes JA, Smith EI, Valentine GA, Johnsen R, Rasoazanamparany C, Widom E, Sas M, Ruth D (2015) Intrinsic conditions of magmas from the Lunar Crater Volcanic Field (Nevada): Implications for internal plumbing and magma ascent.  American Mineralogist 100: 396-413, doi:10.2138/am-2015-4812

 

 Valentine GA, Graettinger AH, Macorps E, Ross P-S, White JDL, Dšhring E, Sonder I (2015) Experiments with vertically- and laterally-migrating subsurface explosions with applications to the geology of phreatomagmatic and hydrothermal explosion craters and diatremes.  Bulletin of Volcanology 77:15, doi: 10.1007/s00445-015-0901-7

 

 Rasoazanamparany C, Widom E, Valentine GA, Smith EI, Cortes JA, Kuentz D, Johnsen R (2015) Origin of chemical and isotopic heterogeneity in a mafic, monogenetic volcanic Field: a case study of the Lunar Crater Volcanic Field, Nevada.  Chemical Geology 397: 76-93, doi:10.1016/j.chemgeo.2015.01.004.

 

Tadini A, Bonali FL, Corazzato C, Cortes JA, Tibaldi A, Valentine GA (2014) Spatial distribution and structural analysis of vents in the Lunar Crater Volcanic Field (Nevada, USA).  Bulletin of Volcanology 76:877, doi:10.1007/s00445-014-0877-8

 

Johnson PJ, Valentine GA, Cortes JA, Tadini A (2014) Basaltic tephra from monogenetic Marcath Volcano, central Nevada, Journal of Volcanology and Geothermal Research 281: 27-33, doi: 10.1016/j.volgeores.2014.05.007

 

      Valentine GA, Graettinger AH, Sonder I (2014) Explosion depths for phreatomagmatic eruptions.  Geophysical Research Letters, doi: 10.1002/2014GL060096

 

      Bowman DC, Taddeucci J, Kim K, Anderson JF, Lees JM, Graettinger AH, Sonder I, Valentine GA (2014) The acoustic signatures of ground acceleration, gas expansion, and spall fallback in experimental volcanic explosions.  Geophysical Research Letters 41: 1916-1922, doi:10.1002/2014GL059324

 

      Graettinger AH, Valentine GA, Sonder I, Ross P-S, White JDL, Taddeucci J (2014) Maar-diatreme geometry and deposits:  subsurface blast experiments with variable explosion depth.  G3 – Geochemistry, Geophysics, Geosystems 15, doi:10.1002/2013GC005198

 

      Valentine GA, van Wyk de Vries B (2014) Unconventional maar-diatreme and associated intrusions in the soft sediment-hosted Mardoux structure (Gergovie, France).  Bulletin of Volcanology 76:807, doi: 10.1007/s00445-014-0807-9

 

      Palma JL, Courtland L, Charbonnier S, Tortini R, Valentine GA (2014) Vhub:  a knowledge management system to facilitate online collaborative volcano modeling and research.  Journal of Applied Volcanology 3:2, doi: 10.1186/2191-5040-3-2

 

Valentine GA, Cortes JA (2013) Time and space variations in magmatic and phreatomagmatic eruptive processes at Easy Chair (Lunar Crater Volcanic Field, Nevada, USA).  Bulletin of Volcanology 75:752, doi:10.1007/s00445-013-0752-z.

 

Roche O, Nino Y, Mangeney A, Brand B, Pollock N, Valentine GA (2013) Dynamic pore pressure variations induce substrate erosion by pyroclastic flows.  Geology, doi:10.1130/G34668.1

 

Ross P-S, White JDL, Valentine GA, Taddeucci J, Sonder I, Andrews RG (2013) Experimental birth of a maar-diatreme volcano.  Journal of Volcanology and Geothermal Research 260: 1-12, doi:10.1016/j.jvolgeores.2013.05.005

 

Brown RJ, Valentine GA (2013) Physical characteristics of kimberlite and basaltic intraplate volcanism, and implications of a biased kimberlite record.  Geological Society of America Bulletin 125: 1224-1238, doi:10.1130/B30749.1

 

Taddeucci J, Valentine GA, Sonder I, White JDL, Ross P-S, Scarlato P (2013) The effect of pre-existing craters on the initial development of explosive volcanic eruptions:  an experimental investigation.  Geophysical Research Letters 40: 507-510, doi:10.1002/grl.50176

 

      Valentine GA, White JDL (2012) Revised conceptual model for maar-diatremes: subsurface processes, energetics, and eruptive products.  Geology 40:  1111-1114, doi:10.1130/G33411.1

 

Valentine GA, White JDL, Ross P-S, Amin J, Taddeucci J, Sonder I, Johnson PJ (2012) Experimental craters formed by single and multiple buried explosions and implications for volcanic craters with emphasis on maars.  Geophysical Research Letters 39, 20, doi:10.1029/2012GL053716

 

Hintz AR, Valentine, GA (2012) Complex plumbing of monogenetic scoria cones: New insights from the Lunar Crater Volcanic Field (Nevada, USA).  Journal of Volcanology and Geothermal Research 239-240: 19-32, doi:10.1016/j.jvolgeores.2012.06.008.

 

Valentine GA (2012) Shallow plumbing systems for small-volume basaltic volcanoes, 2:  Evidence from crustal xenoliths at scoria cones and maars.  Journal of Volcanology and Geothermal Research 223-224:  47-63, doi:10.1016/j.jvolgeores.2012.01.012

 

Valentine GA, Doronzo DM, Dellino P, de Tullio MD (2011) Effects of volcano profile on dilute pyroclastic density currents:  numerical simulations.  Geology 39:  947-950, doi:  10.1130/G31936.1

 

Valentine GA, Shufelt NL, Hintz ARL (2011) Models of maar volcanoes, Lunar Crater (Nevada, USA).  Bulletin of Volcanology 73:  753-765, doi:10.1007/s00445-011-0451-6

 

Doronzo DM, Valentine GA, Dellino P, de Tullio MD (2010) Numerical analysis of the effect of topography on deposition from dilute pyroclastic density currents.  Earth and Planetary Science Letters 300:  164-173, doi:10.1016/epsl.2010.10.003

 

Genereau K, Valentine GA, Moore G, Hervig RL (2010) Mechanisms for transitions in eruptive style at a monogenetic scoria cone revealed by microtextural analysis (Lathrop Wells volcano, Nevada, USA).  Bulletin of Volcanology, doi:10.1007/s00445-010-0234-z

 

Valentine GA, Hirano N (2010) Mechanisms of low-flux intraplate volcanic fields – Basin and Range (North America) and Northwest Pacific Ocean. Geology 38: 55-58, doi:10.1130/G30427.

 

 

Full publication list

Also see other members of the UB Volcano Studies Group and their research.

 

Updated 21 May 2015