John Orcutt

Professor/Researcher

Room: Revelle Lab 2213

Institute of Geophysics and Planetary Physics,
Scripps Institution of Oceanography,
University of California San Diego,
La Jolla, CA 92093-0225, USA.

Telephone: (858) 822-6378

Email: jorcutt@ucsd.edu

Research Interests:

• Cyberinfrastructure applications in geophysics including sensor networking, visualization, cloud computing and workflows
• Ocean seismo-acoustics including rough seafloor scattering, acoustic-elastic interactions, and the use of small arrays
• Structure of the elastic earth using seismology, synthetic seismograms, and geophysical inverse theory
• Internal structure of ocean spreading centers; genesis of the oceanic lithosphere
• Nuclear test-ban verification methods.

Courses Taught:

• ERTH199 (Independent Study)
• SIO227C (Advanced Seismology II)
• SIO234 (Geodynamics)
• SIO299 (Research)

Recent publications: ^†

• 2007, The Hawaiian SWELL pilot experiment-Evidence for lithosphere rejuvenation from ocean bottom surface wave data, Geol. Soc. Am. Special Paper 430, 209-233.
• 2006, The OptIPuter: High-Performance, QoS-Guaranteed Network Service for Emerging E-Science Applications. IEEE Communications Magazine 44(5), 38-45, 10.1109/MCOM.2006.1637945.
• 2006, ROADNET: A network of SensorNets, IEEE Computer Soc, doi.ieeecomputersociety.org/10.1109/LCN.2006.322019
• 2006, Ocean Seismic Observatories, Oceanography 19(4),
• 2006, Leg 203 Synthesis: Summary of Scientific Results, In Schultz, A., J.A. Orcutt, and T.A. Davies (Eds.), Proc. ODP, Sci. Results, 203: College Station, TX (Ocean Drilling Program), 1-16.
• 2006, A future for drifting seismic networks, EOS, 87, 2006EO310002
• 2005, HighSeasNet: Providing Internet to the UNOLS fleet: A model for real-time Internet data collection from the ORION platforms, Sea Technology 46(6), 17-20.
• 2005, Global scale sensor networks – opportunities and challenges, Information Processing in Sensor Networks. 434, 10.1109/IPSN.2005.1440965.
• 2005, Accessing sensor data using meta data: a virtual object ring buffer framework, ACM International Conference Proceeding Series. 96, 35-42.
• 2004, Testing low/very low frequency acoustic sources for basin-wide propagation in the Indian Ocean, Jour. Acoustical Soc. Am. 116(4), 2057-2066, 10.1121/1.1786711.
• 2004, Results from OSNPE: Improved teleseismic earthquake detection at the seafloor, Bull. Seismological Soc. of Am. 94(5) 1868.
• 2003, The Visualization Center at Scripps Institution of Oceanography: Education & Outreach, Seis. Res. Lett., 74, 5, 641-648
• 2003, The Cecil H. and Ida M. Green Institute of Geophysics and Planetary Physics (IGPP), Oceanography, 16, 3, 34-44
• 2003, Ocean Seismic Network Pilot Experiment, Geochemistry Geophysics Geosystems, 4,
• 2003, Influence of enhanced melt supply on upper crustal structure at a mid-ocean ridge discontinuity: A three-dimensional seismic tomographic study of 9 degrees N East Pacific Rise, Journal of Geophysical Research-Solid Earth, 108, B10, -
• 2003, Bathymetry from Space is Now Possible, EOS, 84, 5, 37, 44
• 2003, A three-dimensional study of a crustal low velocity region beneath the 9 degrees 03 N overlapping spreading center, Geophysical Research Letters, 30, 2, -
• 2002, Upper mantle structure beneath the Hawaiian swell: Constraints from the ocean seismic network pilot experiment, Geophysical Research Letters, 29, 11, -
• 2002, Collaborative visualization in Earth and ocean sciences, Margins Newsletter, 8, 1-2
• 2002, Breathing of the seafloor: Tidal correlations of seismicity at Axial volcano, Geology, 30, 6, 503-506
• 2002, Asymmetric melt sills and upper crustal construction beneath overlapping ridge segments: Implications for the development of melt sills and ridge crests, Geology, 30, 1, 83-86
• 2001, Three-dimensional shallow crustal emplacement at the 9 degrees 03 N overlapping spreading center on the East Pacific Rise: Correlations between magnetization and tomographic images, Journal of Geophysical Research-Solid Earth, 106, B8, 16101-16117
• 2001, Excitation of T-Phases by seafloor scattering, J. Acoust. Soc. Am., 109, 5, 1944-1954
• 2001, Contrast in crustal structure across the Clipperton transform fault from travel time tomography, Journal of Geophysical Research-Solid Earth, 106, B6, 10961-10981
• 2001, Broadband seismology in the oceans: Lessons from the Ocean Seismic Network Pilot Experiment, Geophysical Research Letters, 28, 1, 49-52
• 2000, Seismoacoustic recordings of a spreading episode an the Mohns Ridge, Journal of Geophysical Research-Solid Earth, 105, B5, 10961-10973
• 2000, Long-Term Observations in Acoustics Ð the Ocean Acoustic Observatory Federation, Oceanography, 13, 2, 57-63
• 2000, Evidence from three-dimensional seismic reflectivity images for enhanced melt supply beneath mid-ocean-ridge discontinuities, Nature, 406, 6796, 614-618
• 2000, A three-dimensional study of a crustal low velocity region beneath the 9¡03ÕN overlapping spreading center, Geo. Phys. Res. Lett., 39, 11, 14
• 1999, Synthesis of earthquake-generated T-waves, Geophysical Research Letters, 26, 9, 1227-1230
• 1999, Seismic signals and noise recorded on a seafloor vertical hydrophone array and a co-located OBS during the LFASE Experiment, Bull. Seis. Soc. Am., 423-432
• 1999, Seismic evidence for a hydrothermal layer above the solid roof of the axial magma chamber at the southern East Pacific Rise, Geology, 27, 3, 219-222
• 1999, Seafloor Seismic Stations Perform Well in Study, Eos, Transactions, AGU, 80, 592
• 1999, Preliminary results are in from mid-ocean ridge three-dimensional seismic reflection survey, Eos Trans (AGU), 80, 181-185
• 1999, First results from the Hawaiian SWELL pilot experiment, Geophysical Research Letters, 26, 22, 3397-3400
• 1998, The ARAD 3-D seismic experiment: A detailed reflection and tomographic investigation of the 9¡ 03 N Overlapping Spreading Center, East Pacific Rise, InterRidge News, 7, 33-39
• 1998, Short and long baseline tiltmeter measurements on axial seamount, Juan de Fuca Ridge, Physics of the Earth and Planetary Interiors, 108, 2, 129-141
• 1998, Seismology - Monitoring nuclear tests, Science, 281, 5385, 1967-1968
• 1998, Off-axis crustal thickness across and along the East Pacific Rise within the MELT area, Science, 280, 5367, 1218-1221
• 1998, Monitoring Nuclear Tests, Science, 281, 1967-1968
• 1998, Migration of backscatter data from the Mid-Atlantic Ridge, Journal of the Acoustical Society of America, 103, 1787-1803
• 1998, Melt to mush variations in crustal magma properties along the ridge crest at the southern East Pacific Rise, Nature, 394, 6696, 874-878
• 1998, Mantle seismic structure beneath the MELT region of the East Pacific Rise from P and S wave tomography, Science, 280, 5367, 1224-1227
• 1998, Imaging the deep seismic structure beneath a mid-ocean ridge: The MELT experiment, Science, 280, 5367, 1215-1218
• 1998, Crustal structure of the flanks of the East Pacific Rise: Implications for overlapping spreading centers, Geophysical Research Letters, 25, 12, 2213-2216
• 1998, Crustal structure of the East Pacific Rise: Implications for overlapping spreading centers, Geophys. Res. Lett., 25, 12, 2213-2216
• 1998, An examination of along-axis variation of magma chamber width and crustal structure on the East Pacific Rise between 13 degrees 30 N and 12 degrees 20 N, Journal of Geophysical Research-Solid Earth, 103, B12, 30451-30467
• 1998, AGUs Electronic Publishing Strategies, EOS, 79, 3, 29-30
• 1998, A two-dimensional tomographic study of the Clipperton transform fault, Journal of Geophysical Research-Solid Earth, 103, B8, 17885-17899
• 1997, Very low frequency (0.2-10.0 Hz) seismoacoustic noise below the seafloor, Jour. Geophys. Res., 102, 11703-11718
• 1997, Velocity structure from forward modeling of the eastern ridge-transform intersection area of the Clipperton Fracture Zone, East Pacific Rise, Journal of Geophysical Research-Solid Earth, 102, B4, 7803-7820
• 1997, Deepening of the axial magma chamber on the southern East Pacific Rise toward the Garrett Fracture Zone, Journal of Geophysical Research-Solid Earth, 102, B2, 3097-3108
• 1996, Suppression of sea-floor scattered energy using a dip moveout approach - Application to the mid-ocean ridge environment, Geophysics, 61, 3, 821-834
• 1996, Seismic analysis of the axial magma chamber reflector along the southern East Pacific Rise from conventional reflection profiling, Journal of Geophysical Research-Solid Earth, 101, B10, 22087-22105
• 1996, Experiments in Regional Monitoring of Small Seismo/Acoustic Events, Proceedings - 18 Annual Seismic Research Symposium, 18, 515-523
• 1995, Seismic Images of Active Magma Systems beneath the East Pacific Rise between 17-Degrees-05 and 17-Degrees-35s, Science, 268, 5209, 391-395
• 1995, Regional Small-Event Identification Using Seismic Networks and Arrays, Proceedings - 17 Annual Seismic Research Symposium, 17, 875-884
• 1995, Recording teleseismic earthquakes using ocean-bottom seismographs at mid-ocean ridges, Bulletin of the Seismological Society of America, 85, 6, 1648-1664
• 1995, Is the ocean floor a fractal?, Math. Geol., 27, 421-462
• 1995, Crustal and Upper-Mantle Contribution to the Axial Gravity-Anomaly at the Southern East Pacific Rise, Journal of Geophysical Research-Solid Earth, 100, B3, 3747-3766
• 1995, A Base-Line for Upper Crustal Velocity Variations Along the East Pacific Rise at 13-Degrees-N, Journal of Geophysical Research-Solid Earth, 100, B4, 6143-6161
• 1994, Uniform Accretion of Oceanic-Crust South of the Garrett Transform at 14-Degrees-15s on the East Pacific Rise, Journal of Geophysical Research-Solid Earth, 99, B5, 9097-9116
• 1994, Resolution of Prominent Crustal Scatterers near the Noress Small-Aperture Array, Geophysical Journal International, 119, 1, 101-115
• 1994, Relationships between ocean bottom noise and the environment, Bull. Seism. Soc. Am., 85, 1991-2007
• 1994, Mantle control of a dynamically evolving spreading center, Earth and Planetary Science Letters, 121, 451-468
• 1994, Imaging Prominent Crustal Scatterers and Constraining Source Depth Using the Pi–on Flat Broad-band 3-Component Array, Proceedings - 16th Annual Seismic Research Symposium, 16, 145-151
• 1993, The future of basic ocean science research in the Department of the Navy, EOS Trans. AGU, 74, 219
• 1993, Seismic Structure of the Southern East Pacific Rise, Science, 259, 5094, 499-503
• 1993, Seismic anisotropy in the mantle beneath an oceanic spreading center, Nature, 366, 675-677
• 1993, Fractal geometry and seafloor topography: Theoretical concepts versus data analysis (Juan de Fuca Ridge and East Pacific Rise), Annales Geophysicae, 11, 532-541
• 1993, Distribution of Magma beneath the East Pacific Rise near the 9-Degrees-03n Overlapping Spreading Center from Forward Modeling of Common Depth Point Data, Journal of Geophysical Research-Solid Earth, 98, B8, 13971-13995
• 1993, Distribution of Magma beneath the East Pacific Rise between the Clipperton Transform and the 9-Degrees-17n Deval from Forward Modeling of Common Depth Point Data, Journal of Geophysical Research-Solid Earth, 98, B8, 13945-13969
• 1993, Crustal Thickness on the Mid-Atlantic Ridge - Bulls-Eye Gravity-Anomalies and Focused Accretion, Science, 262, 5134, 726-729
• 1993, A Multichannel Seismic Investigation of Upper Crustal Structure at 9-Degrees-N on the East Pacific Rise - Implications for Crustal Accretion, Journal of Geophysical Research-Solid Earth, 98, B8, 13925-13944
• 1993, A microprocessor-based ocean bottom seismometer, Bull. Seism. Soc. Am., 83, 190-217
• 1992, Tomographic image of the axial low velocity zone at 12û50N on the EPR, Journal of Geophysical Research, 97, 9243-9263
• 1991, Ocean bottom tiltmeter developed for submarine volcano monitoring, EOS Trans. Am. Geophys. Union, 72, 289-295
• 1991, Beam-Stack Imaging Using a Small Aperture Array, Geophysical Research Letters, 18, 9, 1771-1774
• 1990, The Structure of 0-My to 0.2-My Old Oceanic-Crust at 9-Degrees-N on the East Pacific Rise from Expanded Spread Profiles, Journal of Geophysical Research-Solid Earth and Planets, 95, B10, 15529-15556
• 1990, Limits of sensitivity of inertial seismometers with velocity transducers and electronic amplifiers, Bull. Seism. Soc. Am., 80, 1725-1752
• 1990, Evidence for a Smaller Magma Chamber beneath the East Pacific Rise at 9-Degrees-30 N, Nature, 344, 6267, 650-653
• 1990, An Automatic Means to Discriminate between Earthquakes and Quarry Blasts, Bulletin of the Seismological Society of America, 80, 6, 2143-2160
• 1990, Acoustic pulse propagation above grassland and snow: Comparison of theoretical and experimental waveforms, J. Acoust. Soc. Am., 87, 93-100
• 1990, A two- and three-dimensional analysis of gravity anomalies associated with the East Pacific Rise at 9ûN and 13ûN, Jour. Geophys. Res., 195, 4967-4987
• 1990, A Comparison of Tau-P Transform Methods, Geophysics, 55, 9, 1202-1215
• 1989, Tomographic image of the magma chamber at 12û50N on the East Pacific Rise, Nature, 339, 206-208
• 1989, The time-frequency characteristics of quarry blasts and calibration explosions recorded in Kazakhstan, U.S.S.R., Geophysical Journal International, 99, 109-121
• 1989, The Time Frequency-Characteristics of Quarry Blasts and Calibration Explosions Recorded in Kazakhstan, Ussr, Geophysical Journal International, 99, 1, 109-121
• 1989, Structure of Young Oceanic-Crust at 13-Degrees-N on the East Pacific Rise from Expanding Spread Profiles, Journal of Geophysical Research-Solid Earth and Planets, 94, B9, 12163-12196
• 1989, Observations of low frequency acoustic-to-seismic coupling in the summer and winter, J. Acoust. Soc. Am., 86, 352-359
• 1989, A comparative study of island, seafloor and sub-seafloor ambient noise levels, Bull. Seism. Soc. Am., 79, 172-179
• 1988, VLF propagation loss to a buried seismometer [Monograph] Toward a low-frequency future, IEEE Journal of Oceanic Engineering, 13, 4, 254-262
• 1988, Ultra-low and very-low frequency seismic and acoustic noise in the Pacific, J. Acoust. Soc. Am., 84, 194-195
• 1988, Magma distribution across the 9û17 deval and 9û03 OSC on the EPR from multichannel seismic images, Nature, 336, 6195, 156-158
• 1988, Magma distribution across ridge axis discontinuities on the East Pacific Rise (8¡40 to 9¡50 North) from multichannel seismic images, Nature, 336, 156-158
• 1988, Infrasonic seismic and acoustic measurements in the deep ocean, IEEE J. Ocean Eng., 13, 4, 254-253
• 1988, Comment concerning "A method of obtaining a velocity-depth envelope from wide-angle seismic data" by R. Mithal and J.B. Diebold; discussion and reply, Geophysical Journal of the Royal Astronomical Society, 95, 1, 209-212
• 1988, Axi-Symmetric Earth Models and Inner-Core Anisotropy, Nature, 333, 6170, 228-232
• 1988, A finite element computation of seismic diffraction about the Rise Axis magma chamber, Geophys. Res. Lett., 15, 13, 1487-1490
• 1987, Velocity bounds on the seismic structure of Mesozoic crust and upper mantle in the Southwest Pacific Basin from down-hole observations at Deep Sea Drilling Project Hole 595B [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 9
• 1987, The Ngendei Seismic Refraction Experiment at Deep-Sea Drilling Project Hole-595b - Ocean Bottom Seismometer Data and Evidence for Crustal and Upper Mantle Anisotropy, Initial Reports of the Deep Sea Drilling Project, 88, 385-435
• 1987, The Ngendei seismic refraction experiment at Deep Sea Drilling Project Hole 595B; ocean bottom seismometer data and evidence for crustal and upper mantle anisotropy [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 91 of the
• 1987, Synthetic Pn and Sn phases and the frequency dependence of Q of oceanic lithosphere, Journal of Geophysical Research, 92, 3541-3566
• 1987, Surface and near-Surface Effects on Seismic-Waves - Theory and Borehole Seismometer Results, Bulletin of the Seismological Society of America, 77, 4, 1168-1196
• 1987, Surface and near-surface effects on seismic waves - Theory and borehole seismometer results, Bull. Geol. Soc. Am., 77, 1168-1196
• 1987, Structure of the Earth: Oceanic crust and uppermost mantle, U.S. National Report to the I.U.G.G., 1983-1986, Rev. of Geophys., 25, 6, 1177-1196
• 1987, Site 596; hydraulic piston coring in an area of low surface productivity in the Southwest Pacific [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 91 of the cruises of the drilling vessel Glomar Challenger, Wellington, New Z
• 1987, Site 595; coring and downhole seismic experiments in the Southwest Pacific near the Tonga Trench [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 91 of the cruises of the drilling vessel Glomar Challenger, Wellington, New Ze
• 1987, Simultaneous Borehole and Ocean Bottom Seismometer Recordings of Earthquakes and Explosions - Results from the 1983 Ngendei Experiment at Deep-Sea Drilling Project Hole-595b, Initial Reports of the Deep Sea Drilling Project, 88, 377-384
• 1987, Seismic reflection site survey; correlation with physical properties, Leg 91, Deep Sea Drilling Project [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 91 of the cruises of the drilling vessel Glomar Challenger, Wellington,
• 1987, Preliminary analysis of ocean-bottom and sub-bottom microseismic noise during the Ngendei Experiment [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 91 of the cruises of the drilling vessel Glomar Challenger, Wellington, Ne
• 1987, Multi-channel seismic imaging of a crustal magma chamber along the East Pacific Rise, Nature, 326, 6108, 35-41
• 1987, Marine seismic system experiment [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 91 of the cruises of the drilling vessel Glomar Challenger, Wellington, New Zealand, to Papeete, Tahiti, January-February, 1983, Initial Repor
• 1987, Introduction: Objectives and results of Deep Sea Drilling Project Leg 91 and the Ngendei seismic experiment, and explanatory notes for Volume 91 [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 91 of the cruises of the drill
• 1987, Description and performance of the Scripps ocean bottom seismographs during the Ngendei Experiment [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 91 of the cruises of the drilling vessel Glomar Challenger, Wellington, New
• 1987, Description and performance of the Marine Seismic System during the Ngendei Experiment [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 91 of the cruises of the drilling vessel Glomar Challenger, Wellington, New Zealand, to
• 1986, Strict Bounds on Seismic Velocity in the Spherical Earth, Journal of Geophysical Research-Solid Earth and Planets, 91, B14, 13892-13902
• 1986, Low-frequency noise observations in the deep ocean, J. Acoust. Soc. Am., 80, 633-645
• 1986, Compressional and ShearWave Anisotropy in the Oceanic Lithosphere - the Ngendei Seismic Refraction Experiment, Geophysical Journal of the Royal Astronomical Society, 87, 3, 967-1003
• 1985, Waveform inversion of seismic refraction data and applications to young Pacific crust, Geophys. J.R. astr. Soc., 82, 375-414
• 1985, The synthesis of realistic oceanic Pn wavetrains, Journal of Geophysical Research, 90, 755-776
• 1985, The East Pacific Rise in cross section: A seismic model, Jour. Geophys. Res., 90, 8627-8639
• 1985, The computation of body-wave synthetic seismograms, Rev. Geophys. Space Phys., 23, No.2, 105-163
• 1985, Synthetic seismogram modeling of the oceanic Pn phase, Nature, 316, 246-248
• 1985, Least squares fitting of marine seismic refraction data, Geophys. J.R. astr. Soc., 82, 339-374
• 1985, Anisotropy in the oceanic lithosphere-Theory and observations from the Ngendei seismic refraction experiment in the south-west Pacific, Geophys. J.R. astr. Soc., 80, 493-526
• 1985, Anisotropy in the Oceanic Lithosphere - Theory and Observations from the Ngendei Seismic Refraction Experiment in the Southwest Pacific, Geophysical Journal of the Royal Astronomical Society, 80, 2, 493-526
• 1984, The discrete wavenumber/finite element method for synthetic seismograms, Geophys. J.R. astr. Soc., 77, 421-460
• 1984, Propagation of PL and implications for the structure of Tibet, Jour. Geophys. Res., 89, B5, 3135-3152
• 1984, Preliminary seismic refraction results using a borehole seismometer in Deep Sea Drilling Project Hole 395A [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 78A of the cruises of the drilling vessel Glomar Challenger, San Jua
• 1984, Analysis of ambient seismic noise recorded by downhole and ocean-bottom seismometers on Deep Sea Drilling Project Leg 78B [Monograph] Initial reports of the Deep Sea Drilling Project covering Leg 78A of the cruises of the drilling vessel Glomar Chal
• 1982, Peak acceleration scaling studies, Bull. Geol. Soc. Am., 72, 959-979
• 1982, Microearthquakes in the black smoker hydrothermal field, East Pacific Rise at 21û N, Jour. Geophys. Res., 87, 613-623
• 1982, Extremal travel time inversion of explosion seismology data from the Eastern Snake River Plain, Idaho, Jour. Geophys. Res., 87, 2634-2642
• 1982, Constraints on crustal structure in eastern Iceland based on extremal inversions of seismic refraction data, Journal of Geophysical Research, 87, 6371-6382
• 1981, Crustal processes of the mid-ocean ridge, Science, 213, 31-40
• 1980, The 1978 Oaxaca earthquake source mechanism; Analysis from digital data, Geofisica Internacional, 17, 295-301
• 1980, Petrology and porosity of an oceanic crustal site: Results from wave form modeling of seismic refraction data, Jour. Geophys. Res., 85, 1409-1433
• 1980, Linear extremal inversion of explosion profile data, Bull. Seism. Soc. Am., 70, 2103-2116
• 1980, Joint linear, extremal inversion of seismic kinematic data, Jour. Geophys. Res., 85, 2649-2660
• 1980, Higher mode surface waves and structure of the Great Basin of Nevada and western Utah, Jour. Geophys. Res., 85, B12, 7166
• 1980, Geophysics and geology of mid-ocean ridge hydrothermal systems, New Scientist, 10, 743
• 1980, East Pacific Rise: Hot springs and geophysical experiments, Science, 207, 1421-1433
• 1980, A new method for slant stacking refraction data, Geophys. Res., 7, 12, 1073-1076
• 1980, A new look at the seismic velocity structure of the oceanic crust, Rev. Geophys. Space Phys., 18, 627-645
• 1979, Travel time inversion: A geometrical approach, Jour. Geophys. Res., 84, 3615-3622
• 1979, Results of Scripps long range profiles in the Pacific, Tectonophysics, 56, 83
• 1979, A comparison of the generalized ray and reflectivity methods of waveform synthesis, Geophys. J.R. astr. Soc., 58, 261-278
• 1978, Ophiolites found in oceanic crust?, Geophys. Res. Lett., 5, 341-344
• 1977, Variations in crustal structure on the East Pacific Rise Crest: A travel time inversion approach, Earth Planet. Sci. Letters, 34, 439-444
• 1977, Seismic evidence for a narrow zone of partial melting underlying the East Pacific Rise at 21ûN, Bull. Geol. Soc. Am., 88, 678-682
• 1977, An oceanic long range explosion experiment, Jour. of Geophys., 32, 257-263
• 1976, Structure of the East Pacific Rise from an ocean bottom seismometer survey, Geophys. J.R. Astr. Soc., 45, 305-320
• 1976, A comparison of travel time inversions for marine refraction profiles, Jour. Geophys. Res., 81, 4061-4070
• 1975, Evidence for a low velocity zone underlying a fast spreading ridge crest, Nature, 256, 475-476