Gray E. Bebout
Professor, Lehigh University
[more complete CV here]
Phone: 1-610-758-5831; Laboratory Phone: 1-610-758-6168;
of Earth and Environmental Sciences
1 West Packer Avenue, Lehigh University, Bethlehem,
Pennsylvania 18015, USA
(Geology; 9/81) University of Texas at Austin
M.A. (Geology; 9/84) University of Texas at Austin
Thesis: Fluid Evolution and Transport during
Metamorphism: Evidence from the Llano Uplift, Texas
Ph.D. (Geology; 9/89) University
of California, Los Angeles (UCLA)
Dissertation: Geological and Geochemical Investigations
of Fluid Flow and Mass Transfer during Subduction-Zone Metamorphism
2017 - present, Specially Appointed Professor, Institute for Planetary Materials, Okayama University, Misasa, Tottori, Japan
- present, Professor,
Lehigh University, Department of Earth and Environmental Sciences
Visiting Research Scientist, Institute for Study of the Earth's Interior, Okayama University,
Misasa, Tottori, Japan
Visiting Professor, Institute for Study of the Earth's Interior, Okayama University,
Misasa, Tottori, Japan
2006 - COE21 Visiting Foreign Professor,
Institute for Study of the Earth's Interior, Okayama University,
Misasa, Tottori, Japan
- Center of Excellence Visiting Foreign Professor at Institute
for Study of the Earth's Interior, Misasa, Tottori, Japan
1992 - 2003
Assistant and Associate Professor, Lehigh University, Department of Earth and Environmental
1989 - 1991 Postdoctoral Fellow, Geophysical Laboratory,
Carnegie Institution of Washington
Fellow — Mineralogical Society of America (as of November, 2018)
Barnes, J. D., Penniston-Dorland, S. C., Bebout, G. E., Hoover, W., Beaudoin, G. M., and Agard, P., 2019,
Chlorine and lithium behavior in metasedimentary rocks during prograde
metamorphism: A comparative study of exhumed subduction complexes
(Catalina Schist and Schistes Lustres), Lithos.
House, B. M., Bebout, G. E., and Hilton, D. R., 2019, Carbon cycling at the Sunda margin, Indonesia: A regional study with global implications, Geology.
Nakamura, E., Kunihiro, T., Ota, T.,
Sakaguchi, C., Tanaka, R., Kitagawa, H., Kobayashi, K.,
Yamanaka, M., Shimaki, Y., Bebout, G. E., Miura, H., Yamamoto, T.,
Malkovets, V., Grokhovsky, V., Koroleva, O., and Litasov, K., 2019,
Hypervelocity collision and water-rock interaction in space preserved
in the Chelyabinsk ordinary chondrite, Proceedings of the Japan Academy.
Jaeckel, K., Bebout, G. E., and Angiboust, S., 2018,
Deformation-enhanced fluid and mass transfer along Western and Central
Alps paleo-subduction interfaces: Significance for carbon cycling
models, Geosphere, v. 14, doi.org/10.1130/GES01587.1.
Anderson, L. D., Bebout, G. E., Izawa, M. R. M., Bridge, N. J., and Banerjee, N. R., 2017,
Chemical alteration and preservation of sedimentary/organic nitrogen
isotopic signatures in a 2.7 Ga seafloor volcanic sequence,
International Journal of Astrobiology, doi.org/10.1017/S1473550417000441.
Bebout, G. E., Banerjee, N. R., Izawa, M. R. M., Kobayashi, K., Lazzeri, K., Ranieri, L., and Nakamura, E., 2017,
Nitrogen concentrations and isotopic compositions of seafloor-altered
terrestrial basaltic glass: Implications for astrobiology, Astrobiology, v. 18, no. 4, DOI: 10.1089/ast.2017.1708.
Bebout, G. E., Scholl, D. W., Stern, R. J., Wallace, L. M., and Agard, P., 2017, Twenty years of subduction zone science: Subduction Top to Bottom 2 (ST2B-2), GSA Today, v. 28, doi: 10.1130/GSATG354A.1.
Angiboust, S., Yamato, P., Hertgen, S., Hyppolito, T., Bebout, G. E., and Morales, L., 2016,
Fluid pathways and high pressure metasomatism in a subducted
continental slice (Mt. Emilius klippe, W. Alps), Journal of Metamorphic
Geology, DOI: 10.1111/jmg.12241.
Lazzeri, K. E., Bebout, G. E., and Geiger, C.A., 2016,
Nitrogen and carbon concentrations and isotopic compositions of the
silica clathrate melanophlogite, American Mineralogist,
Sievers, N. E., Tenore, J., Bebout, G. E., and Penniston-Dorland, S. C., 2016,
Fingerprints of forearc element mobility in blueschist-facies
metaconglomerates, Catalina Schist, California, International Geology
Halama, R., Bebout, G. E., John, T., and Marschall, H., 2016, Fluid-induced breakdown of white mica controls nitrogen transfer during fluid-rock interaction in subduction zones,
International Geology Reviews.
Bebout, G. E., 2016, Caesium: Element and Geochemistry, invited chapter for Encyclopedia of Geochemistry, Earth Science Series, Springer.
Scambelluri, M., Bebout, G. E., Belmonte, D., Gilio, M., Campomenosi, N., Collins, N. C., and Crispini, L., 2016,
Carbonation of subduction-zone serpentinite (high-pressure
ophicarbonate; Ligurian Western Alps) and implications for the deep
carbon cycling. Earth and Planetary Science Letters, doi:10.1016/j.epsl.2016.02.034.
Bebout, G. E., and Penniston-Dorland, S. C., 2015, Fluid and mass transfer at subduction interfaces—The field metamorphic record (Invited Review Article), Lithos, DOI: 10.1016/j.lithos.2015.10.007.
Collins, N. C., Bebout, G. E., Angiboust, S., Agard, P., Scambelluri, M., Crispini, L., and John, T., 2015, Subduction
zone metamorphic pathway for deep carbon cycling: II. Evidence
from HP/UHP metabasaltic rocks and ophicarbonates. Chemical Geology,
Bebout, G. E., Lazzeri, K. E., and Geiger, C. A., 2015,
Pathways for nitrogen cycling in Earth's crust and upper mantle: A
review and new results for microporous beryl and cordierite (Invited Centennial Article), American Mineralogist, DOI: 10.2138/am-2015-5363.
Cook-Kollars, J., Bebout, G. E., Collins, N. C., Angiboust, S., and Agard, P., 2014,
Subduction zone metamorphic pathway for deep carbon cycling: I.
Evidence from HP/UHP metasedimentary rocks, Italian Alps, Chemical
Geology, DOI: 10.1016/j.chemgeo.2014.07.013.
Penniston-Dorland, S., Gorman, J. K., Bebout, G. E., Piccoli, P. M., and Walker, R. J., 2014,
Reaction rind formation in the Catalina Schist: Deciphering a history
of mechanical mixing and metasomatic alteration, Chemical Geology, DOI: 10.1016/j.chemgeo.2014.06.024.
Bebout, G. E., Fogel, M. L., and Cartigny, P., 2013, Nitrogen:
Highly volatile yet surprisingly compatible,
for special issue of ELEMENTS (Nitrogen and its (BioGeoCosmo)Chemical
Cycling, editors Bebout, G. E., Fogel, M. L., and Cartigny, P.), DOI: 10.2113/gselements.9.5.333.
Busigny, V., and Bebout, G. E., 2013, Nitrogen in the silicate Earth: Speciation and isotopic behavior during fluid-mineral interactions,
for special issue of
ELEMENTS (Nitrogen and its (BioGeoCosmo)Chemical Cycling, editors
Bebout, G. E., Fogel, M. L., and Cartigny, P.), DOI: 10.2113/gselements.9.5.353.
Godfrey, L. V., Poulton, S. M., Bebout G. E., and Fralick, P. W., 2013, Stability
of the nitrogen cycle during development of sulfidic water in the
redox-stratified late Paleoproterozoic Ocean, Geology, v. 41, 655-658 DOI:
Bebout, G. E., Agard, P., Kobayashi,
K., Moriguti, T., and Nakamura, E., 2013, Devolatilization and trace element mobility
in deeply subducted sedimentary rocks: Evidence from Western Alps HP/UHP
suites, Chemical Geology, v. 342, 1-20, DOI: 10.1016/j.chemgeo.2013.01.009.
Bebout, G. E., 2013,
(Invited) 4.20. Chemical and Isotopic Cycling in Subduction Zones, in Rudnick,
R. L., ed., The Crust, Treatise on Geochemistry (eds. H. D. Holland
and K. K. Turekian, Second Edition), Elsevier-Pergamon, Oxford., pp. 703-747.
Zelanko, P., Yu, Z., Bebout,
G. E., and Kauffman, A. J., 2012, Multiple early Holocene climate oscillations
at Silver Lake, New Jersey and their possible linkage with outburst floods,
Palaeogeography, Palaeoclimatology, Palaeoecology, DOI:10.1016/j.palaeo.2012.06.028.
Halama R., Bebout, G. E.,
John, T., and Scambelluri, M., 2012, Nitrogen recycling in subducted mantle
rocks and implications for the global nitrogen cycle, International Journal
of Earth Sciences (Geologische Rundschau), DOI: 10.1007/s00531-012-0782-3.
Gussone, N., Podladchikov, Y. Y., Bebout, G. E., Dohmen, R., Halama, R., Klemd, R., Magna, T., and Seitz, H.-M., 2012, Volcanic arcs fed by rapid pulsed fuid
flow through subducting slabs, Nature Geoscience, DOI: 10.1038/NGEO1482.
Gonyo, A., Yu, Z, and Bebout, G. E., 2012, Late Holocene change in climate and atmospheric
circulation inferred from geochemical records at Kepler Lake, south-central
Alaska, Journal of Paleolimnology, v. 48, 55-67, DOI: 10.1007/s10933-012-9603-8.
A., Bebout, G. E., and Brown, C. H., 2012, Changing fluid conditions during folding:
An example from the central Appalachians, Tectonophysics, DOI: 10.1016/j.tecto.2012.03.002.
G. E., 2012, (Invited) Ch. 9. Metasomatism in subduction zones of oceanic slabs,
mantle wedges, and the slab-mantle interface, in D. Harlov, and
H. Austrheim, editors, Metasomatism and Metamorphism: The Role of
Fluids in Crustal and Upper Mantle Processes, Springer, Lecture Notes
in Earth Sciences, ISBN: 978-3-642-28393-2.
Some Other Recent Activities:
2019 Co-convener (with Dave Scholl, Bob Stern, and Laura Wallace) of session at Fall AGU meeting to be held in San Francisco, California, December, 2019 ("Subduction Top to
Bottom 2 (ST2B-2): Processes and Products Modern and Ancient")
2019 Co-convener (with Dave Scholl, Bob Stern, and Laura Wallace) of session at Annual GSA meeting to be held in Phoenix, Arizona, September, 2019 ("Subduction Top to
Bottom 2, Ancient and Modern")
2018 Co-convener (with Dave
Scholl, Bob Stern, and Laura Wallace) of session at Fall AGU meeting in
Washington, D.C., December 10-14, 2018 ("Subduction Top to Bottom-2") -
69 abstracts (total of >300 abstracts attracted over four meetings
2017 Co-convener (with Dave
Scholl, Bob Stern, and Philippe Agard) of session at Fall AGU meeting
in New Orleans, December 11-15, 2017 ("Subduction Top to Bottom 2, with
a Caribbean Flavor") - 63 abstracts
2017 Co-convener (with Dave Scholl, Bob Stern, Anne Trehu, Joan Gomberg, and Thomas W. Sisson) of session at Annual GSA meeting in Seattle Washington, October 22-25, 2017 ("Subduction Top to
Bottom 2 (ST2B-2), Cascadia and Beyond") - 37 abstracts
2016 Co-convener (with Dave
Scholl, Bob Stern, Laura Wallace, and Philippe Agard) of session at
Fall AGU meeting in San Francisco Dec. 12-16, 2016 ("Subduction Top to
Bottom 2") - 136 abstracts
2015 Lead editor for "Subduction Top to Bottom 2"
co-editors Dave Scholl, Bob Stern, Laura Wallace, and Philippe
Agard), an all-electronic publication (to be published in GEOSPHERE;
accepting manuscripts through to the end of 2019). This project is a
followup to the 1996 AGU Geophysical Monograph v. 96 (see below;
(with Marilyn Fogel and Pierre Cartigny) of Union Session at
Goldschmidt Conference, August, 2013 ("Frontiers in Nitrogen
2012 - 2013 Co-editor of
special issue of ELEMENTS (Geochemical Society publication) on "Nitrogen and its
(BioGeoCosmo)Chemical Cycling" (co-editors Marilyn Fogel and Pierre Cartigny; issue was published in October, 2013)
2011 Union Session Co-chair, Fall AGU Meeting, San Francisco
("Physical and Chemical State of Subducting Slabs and the Slab-Mantle Interface:
Forearc, Subarc, and Beyond"; with Sarah Penniston-Dorland, Geoff Abers, and Philippe Agard)
2010 - present Member of Scientific Committee,
International Lithosphere Program, Task Force IX: Deep Into the
Subduction Channel (DISC), Project Leaders P. Agard, A. Okay, B.
Hacker, and T. Gerya (and participation in Workshop 2011, W. Alps,
held in Sampeyre, Italy, summer, 2011)
2010 Session Co-chair, Fall AGU Meeting, San
Francisco ("Metamorphic Perspectives of Subduction Zone Evolution";
with Brad Hacker and Horst Marschall)
2009 Invited lecturer/instructor at EURISPET
(European Intensive Seminars of Petrology), Granada, Spain, "High-Pressure
Metamorphism and Subduction Zones")
2008 Session Co-chair, Fall AGU Meeting,
San Francisco ("Subduction Zone Metamorphism: Fluid-Rock Interaction
in Space and Time"; with Maureen Feineman, Jay Ague, and Ivan
Session Co-chair, 2008 Goldschmidt Conference, Vancouver,
Canada ("Isotopic Biogeochemical Tracers into the Ancient Rock
Record"; with Pierre Cartigny and James Farquhar)
participation in ExxonMobil Symposium on Non-Hydrocarbon Gases
(Houston, Texas, March, 2007; "Transfer of Organic Nitrogen through
Diagenesis and Low- to High-Grade Metamorphism (and Beyond): An
- 2009 Associate Editor, Geochemistry, Geophysics, and Geosystems
- 2006 Session Co-chair, 2006 Goldschmidt Conference, Melbourne,
Australia (subduction-zone metamorphic geochemistry; with Richard
- present Associate Editor, Lithos
2002 - 2013 Member of Books Board, American Geophysical Union
- present Co-editor (with T. Elliott) of subduction-zone-flux
sections of GERM (Geochemical Earth Reference Model)
- 2006 Associate Editor, American Mineralogist
2001 - 2005
Co-convener of special session, "Trench to Subarc: Diagenetic
and Metamorphic Mass Flux in Subduction Zones" (co-sponsored by
GERM and MARGINS Subduction Factory) at the Fall AGU meeting, 2001,
and guest editor of "theme" on this topic in Geochemistry, Geophysics,
and Geosystems (G-cubed, theme completed December, 2004)
2002 - 2004
Involvement as shorebased scientist in ODP Leg 205 (drilling off
of Costa Rica in 2002; conducting C- and N-isotope analyses of seafloor sediment)
2002 - 2004
Member of Scientific Program Committee, Organizing Committee
for the Water-Rock Interaction Conference, Saratoga Springs, June,
2004 (co-convener of two special
2002 - 2003
Co-convener of special session, "HP to UHP Metamorphic Mass
Transfer and Chemical Cycling in Convergent Margins" (co-sponsored
by GERM and MARGINS Subduction Factory), for the Goldschmidt Conference
in Kurashiki, Japan, September, 2003
1999 - 2002
Involvement as shorebased scientist in ("Crustal Recycling in the Izu-Marianas Margin"; conducting C- and N-isotope
analyses of seafloor sediment and altered oceanic crust)
1995 - 1996 Chief Editor "Subduction Top to Bottom", AGU
Geophysical Monograph, v. 96 (volume highlighting multidisciplinary
study of convergent margins; co-editors Dave Scholl, Steve Kirby, and
John Platt). Work is underway on a follow-up to this book, to be
published on the twentieth anniversary of GM96.
Some Recent (active) Collaborators:
Agard - Universite PM Curie, France
Angiboust - IPGP, Paris
Jaime Barnes - University of Texas, Austin
Roberto Braga and Bibiana Forster - University of Bologna, Italy
Enrico Cannao - University of Milan
Bill Carlson - University of Texas, Austin
Bruce Christenson - GNS Science, Wellington, New Zealand
Laura Crispini - University of Genova, Italy
Charles Geiger - Universität
Ralf Halama - Keele University, UK
Brian House - University of California, San Diego (Scripps)
Kobayashi - IPM,
Takuya Kunihiro - IPM, Misasa, Japan
Jack Mustard - Brown University
Nakamura - IPM,
Tsutomu Ota - IPM, Misasa,
- University of Maryland
Marco Scambelluri - University of Genova, Italy
Jane Selverstone - University of New Mexico
Hirochika Sumino - University of Tokyo
Paola Tartarotti - University of Milan
Ikuko Wada - University of Minnesota
Ken Williford, JPL/NASA
page last updated 5-06-19