W. Roger Buck

Lamont Research Professor
Lamont-Doherty Earth Observatory
Marine Geology and Geophysics
Adjunct Professor
Earth and Environmental Sciences
Associate Director-Marine Geology and Geophysics
Lamont-Doherty Earth Observatory
305B Oceanography
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
Phone: 
(845) 365-8592
Fax: 
(845) 365-8156
Fields of interest: 
Development of theoretical models for processes that affect the solid earth.

My research interests lie in developing theoretical models for processes that affect the solid earth. Recently, my students and I have been creating computer models of mantle upwelling in the region of melting below a mid-ocean ridge and investigating how it leads to the structural and topographic features we observe on ridges.

We are also trying to understand how and why extension of the earth's crust occurs in such a wide variety of ways. In particular, I am interested in the effect of a weak lower crust on patterns of deformation that occur at the surface. For example, a weak lower crust may allow active normal faulting in the core of a mountain belt while thrusting occurs in the outer parts of the belt. My interests extend to deformation patterns and topography on other planets such as Venus, which has a very different style of tectonics than is seen on earth.

I believe theorists need to get out and see where the data come from. In recent years I have been fortunate to participate in such diverse field work as collecting rocksamples for radiometric dating in Egypt and in the Mojave Desert, diving on the Reykjanes Mid-Ocean Ridge in a Russian submersible, and helping with GPS surveys on Iceland.

Education
List of degrees from highest to lowest:
Ph.D.
MIT
1984
Bachelor of Science
William & Mary
1978
Lamont Projects: 
Selected Publications: 
How Much Magma is required to rift a continent?, Bialas, R; Buck, W R; Qin, R , Earth Planet Sci Lett, Volume 292, p.68-78, (2010)

Constraints on asthenospheric flow from the depths of oceanic spreading centers: The East Pacific Rise and the Australian-Antarctic Discordance, Buck, W R; Small, C; Ryan W F B , Geochem Geophys Geosyst, Volume 10, p.101029/2009GC002373, (2009)

September 2005 mega-dike emplacement in the Manda-Harraro nascent oceanic rift (Afar depression), Ayele, A; Keir, D: Ebinger, C; Wright, T J; Stuart, G W; Buck, W R; Jacques, E; Ogubazghi, G; Sholan, J , Geophys Res Letts, Volume 36, p.101029/2009GL039605, (2009)

The role of sedimentation in the development of rifts; Applications to the Gulf of California, Bialas, R; Buck, W R , Tectonics, Volume 28, p.101029/2008TC002394, (2009)

Constraints on asthenospheric flow from the deepest spreading centers, Buck, W R; Small, C; Ryan, W B F , G-cubed, Volume 10, Issue n9, p.1-23, (2009)

Why meter-wide dikes at oceanic spreading centers?, Qin, R.; Buck, W. R. , Earth and Planetary Science Letters, Jan 30, Volume 265, Issue 3-4, p.466-474, (2008), DOI 10.1016/j.epsl.2007.10.044

Capturing magma intrusion and faulting processes during continental rupture: seismicity of the Dabbahu (Afar) rift, Ebinger, C. J.; Keir, D.; Ayele, A.; Calais, E.; Wright, T. J.; Belachew, M.; Hammond, J. O. S.; Campbell, E.; Buck, W. R. , Geophysical Journal International, Sep, Volume 174, Issue 3, p.1138-1152, (2008), DOI 10.1111/j.1365-246X.2008.03877.x

Role of melt supply in oceanic detachment faulting and formation of megamullions, Tucholke, B. E.; Behn, M. D.; Buck, W. R.; Lin, J. , Geology, Jun, Volume 36, Issue 6, p.455-458, (2008), Doi 10.1130/G24639a.1

Comment on "Mechanics of tidally driven fractures in Europa's ice shell" by S. Lee, R.T. Pappalardo, and N.C. Makris [2005. Icarus 177, 367-379], Qin, R.; Buck, W. R.; Germanovich, L. , Icarus, Aug, Volume 189, Issue 2, p.595-597, (2007), DOI 10.1016/j.icarus.2007.01.013

Plateau collapse model for the transantarctic mountains-west Antarctic rift system: Insights from numerical experiments, Bialas, R. W.; Buck, W. R.; Studinger, M.; Fitzgerald, P. G. , Geology, Aug, Volume 35, Issue 8, p.687-690, (2007)

Control of rheological stratification on rifting geometry: a symmetric model resolving the upper plate paradox, Nagel, T. J.; Buck, W. R. , International Journal of Earth Sciences, Nov, Volume 96, Issue 6, p.1047-1057, (2007), DOI 10.1007/s00531-007-0195-x

Channel flow and the development of parallel-dipping normal faults, Nagel, T. J.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Aug 24, Volume 111, Issue B8, p.-, (2006), Doi 10.1029/2005jb004000

Crustal architecture of the Transantarctic Mountains between the Scott and Reedy Glacier region and South Pole from aerogeophysical data, Studinger, M.; Bell, R. E.; Fitzgerald, P. G.; Buck, W. R. , Earth and Planetary Science Letters, Oct 15, Volume 250, Issue 1-2, p.182-199, (2006), DOI 10.1016/j.epsl.2006.07.035

Flexing is not stretching: An analogue study of flexure-induced fault populations, Supak, S.; Bohnenstiehl, D. R.; Buck, W. R. , Earth and Planetary Science Letters, Jun 15, Volume 246, Issue 1-2, p.125-137, (2006), DOI 10.1016/j.epsl.2006.03.028

The rise and fall of axial highs during ridge jumps, Shah, A. K.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Aug 17, Volume 111, Issue B8, p.-, (2006), Doi 10.1029/2005jb003657

Tectonic stress and magma chamber size as controls on dike propagation: Constraints from the 1975-1984 Krafla rifting episode, Buck, W. R.; Einarsson, P.; Brandsdottir, B. , Journal of Geophysical Research-Solid Earth, Dec 9, Volume 111, Issue B12, p.-, (2006), Doi 10.1029/2005jb003879

Topographic controls on dike injection in volcanic rift zones, Behn, M. D.; Buck, W. R.; Sacks, I. S. , Earth and Planetary Science Letters, Jun 30, Volume 246, Issue 3-4, p.188-196, (2006), DOI 10.1016/j.epsl.2006.04.005

Effect of lithospheric geometry on rift valley relief, Qin, R.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Mar 19, Volume 110, Issue B3, p.-, (2005), Doi 10.1029/2004jb003411

Flexural uplift of a lithospheric slab near the Vema transform (Central Atlantic): Timing and mechanisms, Bonatti, E.; Brunelli, D.; Buck, W. R.; Cipriani, A.; Fabretti, P.; Ferrante, V.; Gasperini, L.; Ligi, M. , Earth and Planetary Science Letters, Dec 15, Volume 240, Issue 3-4, p.642-655, (2005), DOI 10.1016/j.epsl.2005.10.010

Modes of faulting at mid-ocean ridges, Buck, W. R.; Lavier, L. L.; Poliakov, A. N. B. , Nature, Apr 7, Volume 434, Issue 7034, p.719-723, (2005), Doi 10.1038/Nature03358

Sub-ice geology inland of the Transantarctic Mountains in light of new aerogeophysical data, Studinger, M.; Bell, R. E.; Buck, W. R.; Karner, G. D.; Blankenship, D. D. , Earth and Planetary Science Letters, Apr 15, Volume 220, Issue 3-4, p.391-408, (2004), Doi 10.1016/S0012-821x(04)00066-4

Symmetric alternative to asymmetric rifting models, Nagel, T. J.; Buck, W. R. , Geology, Nov, Volume 32, Issue 11, p.937-940, (2004), Doi 10.1130/G20785.1

A numerical model of lithospheric extension producing fault-bounded basins and ranges, Buck, W. R.; Lavier, L. L.; Babeyko, A. , International Geology Review, Aug, Volume 45, Issue 8, p.712-723, (2003)

Plate bending stresses at axial highs, and implications for faulting behavior, Shah, A. K.; Buck, W. R. , Earth and Planetary Science Letters, Jun 30, Volume 211, Issue 3-4, p.343-356, (2003), Doi 10.1016/S0012-821x(03)00187-0

Half graben versus large-offset low-angle normal fault: Importance of keeping cool during normal faulting, Lavier, L. L.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Jun, Volume 107, Issue B6, p.-, (2002), Doi 10.1029/2001jb000513

Accretional curvature of lithosphere at magmatic spreading centers and the flexural support of axial highs, Buck, W. R. , Journal of Geophysical Research-Solid Earth, Mar 10, Volume 106, Issue B3, p.3953-3960, (2001)

Causes for axial high topography at mid-ocean ridges and the role of crustal thermal structure, Shah, A. K.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Dec 10, Volume 106, Issue B12, p.30865-30879, (2001)

Near-axis subsidence rates, hydrothermal circulation, and thermal structure of mid-ocean ridge crests, Cochran, J. R.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Sep 10, Volume 106, Issue B9, p.19233-19258, (2001)

Factors controlling normal fault offset in an ideal brittle layer, Lavier, L. L.; Buck, W. R.; Poliakov, A. N. B. , Journal of Geophysical Research-Solid Earth, Oct 10, Volume 105, Issue B10, p.23431-23442, (2000)

The dynamics of extensional sedimentary basins: constraints from subsidence inversion - Discussion, Buck, W. R.; White, N.; Gallagher, K.; Watts, A. B.; McKenzie, D.; Kusznir, T.; Geli, L. , Philosophical Transactions of the Royal Society of London Series a-Mathematical Physical and Engineering Sciences, Apr 15, Volume 357, Issue 1753, p.830-834, (1999)

How to make a rift wide, Buck, W. R.; Lavier, L. L.; Poliakov, A. N. B. , Philosophical Transactions of the Royal Society of London Series a-Mathematical Physical and Engineering Sciences, Apr 15, Volume 357, Issue 1753, p.671-690, (1999)

Self-consistent rolling-hinge model for the evolution of large-offset low-angle normal faults, Lavier, L. L.; Buck, W. R.; Poliakov, A. N. B. , Geology, Dec, Volume 27, Issue 12, p.1127-1130, (1999)

Abyssal hills formed by stretching oceanic lithosphere, Buck, W. R.; Poliakov, A. N. B. , Nature, Mar 19, Volume 392, Issue 6673, p.272-275, (1998)

Styles of extensional decoupling, Hopper, J. R.; Buck, W. R. , Geology, Aug, Volume 26, Issue 8, p.699-702, (1998)

Bending thin lithosphere causes localized ''snapping'' and not distributed ''crunching'': Implications for abyssal hill formation, Buck, W. R. , Geophysical Research Letters, Oct 15, Volume 24, Issue 20, p.2531-2534, (1997)

Controls on extrusion at mid-ocean ridges, Buck, W. R.; Carbotte, S. M.; Mutter, C. , Geology, Oct, Volume 25, Issue 10, p.935-938, (1997)

Stress-field rotation and rooted detachment faults: A Coulomb failure analysis, Wills, S.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Sep 10, Volume 102, Issue B9, p.20503-20514, (1997)

The effect of lower crustal flow on continental extension and passive margin formation., Hopper, J. R.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Sep 10, Volume 101, Issue B9, p.20175-20194, (1996)

Analog Model of Gravitational Collapse and Surface Extension during Continental Convergence, Buck, W. R.; Sokoutis, D. , Nature, Jun 30, Volume 369, Issue 6483, p.737-740, (1994)

Some Theoretical Predictions on the Relationships among Spreading Rate, Mantle Temperature, and Crustal Thickness, Su, W. S.; Mutter, C. Z.; Mutter, J. C.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Feb 10, Volume 99, Issue B2, p.3215-3227, (1994)

Buoyancy Effects on Mantle Flow under Midocean Ridges, Su, W. S.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Jul 10, Volume 98, Issue B7, p.12191-12205, (1993)

Effect of Lithospheric Thickness on the Formation of High-Angle and Low-Angle Normal Faults, Buck, W. R. , Geology, Oct, Volume 21, Issue 10, p.933-936, (1993)

The Initiation of Rifting at Constant Tectonic Force - Role of Diffusion Creep, Hopper, J. R.; Buck, W. R. , Journal of Geophysical Research-Solid Earth, Sep 10, Volume 98, Issue B9, p.16213-16221, (1993)

Crustal Control of Ridge Segmentation Inferred from Observations of the Reykjanes Ridge, Bell, R. E.; Buck, W. R. , Nature, Jun 18, Volume 357, Issue 6379, p.583-586, (1992)

Global Decoupling of Crust and Mantle - Implications for Topography, Geoid and Mantle Viscosity on Venus, Buck, W. R. , Geophysical Research Letters, Nov 3, Volume 19, Issue 21, p.2111-2114, (1992)

Modes of Continental Lithospheric Extension, Buck, W. R. , Journal of Geophysical Research-Solid Earth, Nov 10, Volume 96, Issue B12, p.20161-20178, (1991)

Fission-Track Analysis of Basement Apatites at the Western Margin of the Gulf-of-Suez Rift, Egypt - Evidence for Synchroneity of Uplift and Subsidence, Omar, G. I.; Steckler, M. S.; Buck, W. R.; Kohn, B. P. , Earth and Planetary Science Letters, Sep, Volume 94, Issue 3-4, p.316-328, (1989)

Focused Mantle Upwelling Below Mid-Ocean Ridges Due to Feedback between Viscosity and Melting, Buck, W. R.; Su, W. S. , Geophysical Research Letters, Jul, Volume 16, Issue 7, p.641-644, (1989)

Convective Partial Melting .1. A Model for the Formation of Thick Basaltic Sequences during the Initiation of Spreading, Mutter, J. C.; Buck, W. R.; Zehnder, C. M. , Journal of Geophysical Research-Solid Earth and Planets, Feb 10, Volume 93, Issue B2, p.1031-1048, (1988)

Flexural Rotation of Normal Faults, Buck, W. R. , Tectonics, Oct, Volume 7, Issue 5, p.959-973, (1988)

Thermal Consequences of Lithospheric Extension - Pure and Simple, Buck, W. R.; Martinez, F.; Steckler, M. S.; Cochran, J. R. , Tectonics, Apr, Volume 7, Issue 2, p.213-234, (1988)

Uplift and Subsidence of the Suez Rift - Constraints from Fission-Track Analysis and Sediment Backstripping, Steckler, M. S.; Omar, G. I.; Buck, W. R. , Aapg Bulletin-American Association of Petroleum Geologists, Aug, Volume 72, Issue 8, p.1025-1025, (1988)

Analysis of the Cooling of a Variable-Viscosity Fluid with Applications to the Earth, Buck, W. R. , Geophysical Journal of the Royal Astronomical Society, May, Volume 89, Issue 2, p.549-577, (1987)