Jeffrey J. Park

Multiple Taper Spectrum analysis code described in Lees, J., and J. Park, Multiple-taper spectral analysis: A stand-alone C- subroutine, Computers & Geosciences, v21, 199-236, 1995.

PLOTIT subroutine for on-the-fly plots within Fortran programs

JParkCodes Blog

Family JPEGs: Enter at your own risk!

Singing Daughters

Background:

I am originally from Orange County, California. My interest in the earth sciences began began after the 1971
earthquake in Sylmar, California tossed
me from my bed. I was introduced to plate tectonics the following year and was hooked on earth science for life.
I received my Bachelor of Science Degree in Physics from Princeton University in 1979, where I worked as a go-fer
in the geology department. I gave my first talk at an AGU meeting in 1980, arguing against a theory that large
earthquakes could cause observable changes in the Earth's rotation axis. I received my Doctorate in
Earth Sciences in 1985 from the University of California, San Diego. From 1985-1986, I did a post doc at
Princeton University and from 1986 I have been on the faculty of Yale University.

Offices Held:

· (2008-present) Director, Yale Institute for Biospheric Studies

· (2002-2008) Chairman, Environmental Studies Program, Yale College

· (2005-2007) Chairman, Standing Committee of the IRIS Global Seismographic Network

· (2000-2002) President, Seismology Section of the American Geophysical Union

· (2002-2004) Member of Governing Board, American Institute of Physics (AIP)

· (1992-1994) Chairman of Executive Committee, Incorporated Research Institutions for Seismology (IRIS)

Current Research:

· Mapping mantle flow associated with plate tectonics, using seismic anisotropy. SEE picture.

· Using scattered seismic waves, and seismic anisotropy, to infer aligned cracks and rock fabrics in the crust.

· Portable seismic field experiment in northern Apennines, Italy

Teaching Philosophy

I like to advise students who have an active curiosity, and give them a lot of freedom to define
projects that capture their interest. However, I try to start a student on a small well-defined
initial project so that he or she can produce something interesting in a reasonable amount of
time and gain some perspective on possible dissertation projects. Students of mine with good
quantitative and computer skills have often found themselves presenting talks at meetings after a few months of research.

Classes Taught:

· Introduction to Seismology G&G 456/556
· Time Series in Geoscience G&G 659a
· Introductory Geoscience G&G 110a
· Seminar in Earth System Science G&G 200b

Publications:

Rieger, D., and J. Park, USArray observations of quasi-Love surface-wave scattering: Orienting anisotropy in the Cascadia subduction zone, accepted by J. Geophys. Res., 2010.

Levin, V., and J. Park, Transitional lithospheric structure beneath the northern Tyrrhenian Sea constrained with mode-converted body waves, submitted to Geophys. Res. Letts, 2010.

Park, J., and V. Levin, Receiver functions from multiple-taper spectral correlation: Statistics, single-station migration, and jackknife uncertainty, submitted to Geophys. J. Int., 2010.

Bianchi, I., J. Park, N. Piana Agostinetti,V. Levin, Mapping seismic anisotropy using harmonic decomposition of receiver functions: an application to Northern Apennines, Italy, submitted to J. Geophys. Res., 2010.

Piccinni, D., M. Di Bona, F. P. Lucente, V. Levin and J. Park, Seismic attenuation and mantle wedge temperature in the Northern Apennines subduction zone, submitted to J. Geophys. Res., 2010.

Park, J., Global alterations to the yearly cycle of atmospheric carbon dioxide, submitted to Nature, 2010

Nikulin, A., V. Levin, and J. Park, Receiver function study of the Cascadia megathrust: evidence for localized serpentinization, Geochemistry, Geophysics, Geosystems, 10, Q07004, doi:10.1029/2009GC002376, 2009.

Park, J., A re-evaluation of the coherence between global-average atmospheric carbon dioxide and temperatures at interannual time scales, Geophys. Res. Letts., 36, L22704, doi:10.1029/2009GL040975, 2009.

Park, J., A. Amoruso, L. Crescentini, and E. Boschi, Long-period toroidal Earth free oscillations from the great Sumatra-Andaman earthquake observed by paired laser extensometers in Gran Sasso, Italy, Geophys. J. Int., 173, 887-905, doi: 10.1111/j.1365-246X.2008.03769.x, 2008.

Shiomi, K., and J. Park, Structural features of the subducting slab beneath the Kii Peninsula, central Japan: Seismic evidence of slab segmentation, dehydration and anisotropy, J. Geophysical Research, 113, B10318, doi:10.1029/2007JB005535, 2008.

Salimbeni, S., S. Pondrelli, L. Margheriti, J. Park and V. Levin, SKS splitting measure-ments beneath the Northern Apennines region: A case of oblique trench retreat, Tectonophysics, 462, 68-82, doi:10.1016/j.tecto.2007.11.075, 2008.

Piana Agostinetti, N., J. Park, and F. P. Lucente, Mantle Wedge Anisotropy in Southern Tyrrhenian Subduction Zone (Italy), from Receiver Function Analysis, Tectonophysics, 462, 35-48, doi: 10.1016/j.tecto.2008.03.020, 2008.

Piana Agostinetti, N., V. Levin, and J. Park, Crustal structure above a retreating slab: Receiver function study of the northern Apennines orogen, Earth and Planetary Science Letters, 275, 211-220, doi:10.1016/j.epsl.2008.06.02, 2008.

Levin, V., D. A. Okaya, and J. Park, Cause and effect: Shear wave birefringence in wedge-shaped anisotropic regions, Geophys. J. Int., 168, 275-286, doi: 10.1111/j.1365-246X.2006.03224.x, 2007.

Savage, M., J. Park, and H. Todd, Velocity and anisotropy structure at the Hikurangi subduction margin, New Zealand from receiver functions, Geophys. J. International, 168, doi: 10.1111/j.1365-246X.2006.03086.x, 2007

Levin, V., J. Park, L. Margheriti, P. Lucente, and S. Pondrelli, The end of subduction in Northern Apennines confirmed by observations of quasi-Love waves from the great 2004 Sumatra-Andaman earthquake, Geophysical Research Letters, 34, No. 4, L04304, 10.1029/2006GL028860, 2007.

Royer, D. L., R. A. Berner, and J. Park, Climate sensitivity constrained by carbon dioxide concentrations over the last 420 million years, Nature, v446, 530-532, 2007.

Salimbeni, S., S. Pondrelli, L. Margheriti, V. Levin, J. Park, J. Plomerova and V. Babuska, Abrupt change in mantle fabric across northern Apennines detected using seismic anisotropy, Geophysical Research Letters, v34, L07308, doi:10.1029/2007GL029302, 2007.

Maupin, V., and J. Park, Theory and observations: Wave propagation in anisotropic media, pp 289-321, in Treatise on Geophysics, Volume 1, Seismology and Structure of the Earth, B. Romanowicz and A. Dziewonski, eds, Elsevier, Amsterdam, 2007.

Lees, J. L., J. Vandecar, E. Gordeev, A. Ozerov, M. T. Brandon, J. Park and V. Levin, Three-dimensional images of the Kamchatka-Pacific plate cusp, in Volcanism and Subduction: The Kamchatka Region, Geophysical Monograph Series, v172, pp55-65, Editors: J. Eichelberger, E. Gordeev, M. Kasahara, P. Izbekov, and J. Lees, American Geophysical Union, Washington DC, 2007.

Margheriti, L., S. Pondrelli, D. Piccinini, N. Piana Agostinetti, L. Giovani, S. Salimbeni, F. P. Lucente, A. Amato, P. Baccheschi, J. Park, M. T. Brandon, V. Levin, J. Plomerova, P. Jedlicka, L. Vecsey, V. Babuska, A. Fiaschi, B. Carpani, and P. Ulbricht, The subduction structure of the Northern Apennines: Results from the RETREAT seismic deployment, Annals of Geophysics, 49, 1119-1131, 2006.

Plomerova, J., L. Margheriti, J. Park, V. Babuska, S. Pondrelli, L. Vecsey, D. Piccinini, V. Levin, P. Baccheschi, and S. Salimbeni, Seismic anisotropy beneath the Northern Apennines (Italy): Mantle flow or lithosphere fabric? Earth Planet. Sci. Letts., 247, 157-170, 2006.

Levin, V., A. Henza, J. Park and A. Rodgers, Texture of mantle lithosphere along the Dead Sea Rift: recently imposed or inherited? Phys Earth Planet. Int., 158, 174-189, 2006.

Park, J., K. Anderson, R. Aster, R. Butler, T. Lay, and D. Simpson, Global Seismographic Network Records the Great Sumatra-Andaman Earthquake, EOS Transactions AGU, v86, 57, 60-61, 2005.

Leahy, G., and J. Park, Hunting for oceanic island Moho, Geophys. J. Int., 160, 1020-1026, 2005.

Levin, V., N. M. Shapiro, J. Park, and M. Ritzwoller, Slab portal in the Western Aleutians, Geology, 33, 253-256, doi: 10.1130/G20863.1, 2005.

Park, J., R. Butler, K. Anderson, J. Berger, H. Benz, P. Davis, C. R. Hutt, C. S. McCreery, T. Ahern, G. Ekstrom and R. Aster, Performance review of the Global Seismographic Network for the 26 December 2004 Sumatra-Andaman megathrust earthquake, Seismological Research Letters, 76, 329-340, 2005.

Park, J., T. R. Song, J. Tromp, E. Okal, S. Stein, G. Roult, E. Clevede, G. Laske, H. Kanamori, P. Davis, J. Berger, C. Braitenberg, M. Van Camp, X. Lei, H. Sun, H. Xu, and S. Rosat, Earth's Free Oscillations Excited by the 26 December 2004 Sumatra-Andaman Earthquake, Science, 308, 1139-1144, 2005.

Kneller, E. A., P. E. van Keken, S.-I. Karato and J. Park, B-type fabric in the mantle wedge: Insights from high-resolution non-Newtonian subduction zone models, Earth Planet. Sci. Letts., 237, 781-797, 2005.

Shito, A., S.-I. Karato, and J. Park, Frequency dependence of Q in Earth's upper mantle inferred from
continuous spectra of body waves, Geophys. Res. Letts., 31, L12603, doi: 10.1029/2004GL019582, 2004.

Levin, V., D. Droznin, J Park, E. Gordeev, Detailed mapping of seismic anisotropy with local shear waves in southeastern Kamchatka, Geophys J. Int., v158, 1009-1023, 2004.

Park, J., H. Yuan, and V. Levin, Subduction-zone anisotropy under Corvallis, Oregon: A serpentinite skidmark of trench-parallel terrane migration? Journal of Geophysical Research, 109, B10306, 10.1029/2003JB002718, 2004.

Koch, D. , J. Park, and A. Del Genio, Clouds and sulfate are anti-correlated: A new diagnostic for global sulfur models, J. Geophys. Research, 108(D24), 4781, doi:10.1029/2003JD003621, 2003.

Skinner, B. J., S. C. Porter and J. Park, Dynamic Earth, 5th edition, John Wiley and Sons, 2003.

Park, J., and V. Levin, Seismic anisotropy: Tracing plate dynamics in the mantle, Science, v296, 485-489, 2002. Abstract: Full Text PDF (paper reprint available upon request)

Levin, V., N. M. Shapiro, J. Park and M. Ritzwoller, Seismic evidence for catastrophic slab loss beneath Kamchatka, Nature, v418, 763-767, 2002. NEWS&VIEWS ESSAY

Park, J., V. Levin, M. T. Brandon, J. M. Lees, V. Peyton, E. Gordeev, and A. Ozerov, A dangling slab, amplified arc volcanism, mantle flow and seismic anisotropy near the Kamchatka plate corner, in Plate Boundary Zones, Seth Stein and Jeffrey Freymueller, editors, AGU Geodynamics Series No. 30, AGU, Washington DC, pp. 295-324, 2002. PDF of final submitted manuscript

Levin, V., J. Park, J. Lees, M. T. Brandon, V. Peyton, E. Gordeev, and A. Ozerov, Crust and upper mantle of Kamchatka from teleseismic receiver functions, Tectonophysics, v358, 233-265, 2002.

Levin, V., L. Margheriti, J. Park and A. Amato, Anisotropic seismic structure of the lithosphere beneath the Adriatic coast of Italy constrained with mode-converted body waves, Geophys. Res. Letts., 29(22), 2058, doi:10.1029/2002GL015438, 2002.

Park, J., Path-integral synthetic seismograms for an anisotropic upper mantle, submitted to Geophys. J. Int., 2002.

Peyton, V., V. Levin, J. Park, M. T. Brandon, J. Lees, E. Gordeev, and A. Ozerov, Mantle flow at a slab edge: Seismic anisotropy in the Kamchatka region, Geophysical Research Letters, v28, 379-382, 2001.

Park, J., and V. Levin, Receiver functions from regional P waves, Geophys. J. Int., v147, 1-11, 2001. PDF of GJI paper

Park, J., and V. Levin, Receiver functions from multiple-taper spectral correlation estimates, Bull. Seismo. Soc Amer., v90, pp1507-1520, 2000.

Levin, V., W. Menke and J. Park, No regional anisotropic domains in the northeastern US Appalachians, J. Geophysical Res., v105, pp. 19029-19042, 2000.

Levin, V., and J. Park, Shear zones in the Proterozoic lithosphere of the Arabian Shield and the nature of the Hales discontinuity, Tectonophysics, v323, pp. 131-148, 2000.

Levin, V., J. Park, M. T. Brandon and W. Menke, Thinning of the upper mantle during the late Paleozoic Appalachian orogenesis, Geology, v28, pp. 239-242, 2000.

Hinnov, L., J. Park, and E. Erba, Lower-Middle Jurassic rhythmites from the Lombard Basin, Italy: a record of orbitally forced carbonate cycles modulated by secular environmental changes in West Tethys, in Hall, R.L. and Smith, P.L., eds., Advances in Jurassic Research 2000, GeoResearch Forum, v. 6, Trans Tech Publications, Zurich, Switzerland, pp. 427-436, 2000.

Park, J. and M. E. Mann, Interannual temperature events and shifts in global temperature: A multiwavelet correlation approach, Earth Interactions, v. 4, online paper 4-001, 2000. PDF of manuscript - larger-format figures at back of file

Hinnov, L. A., and J. Park, Strategies for assessing Early-Middle (Pliensbachian-Aalenian) Jurassic cyclochronologies, in Shackleton, N. J., McCave, I. N., and Weedon, G. P., eds., A Discussion: Astronomical (Milankovitch) Calibration of the Geological Timescale, Philosophical Transactions of the Royal Society, London, Series A, 357, 1831-1859, 1999.

Mann, M. E., and J. Park, Oscillatory spatiotemporal signal detection in climate studies, Advances in Geophysics, v41, 1-131, 1999. PDF version with color figures.

Levin, V., W. Menke and J. Park, Shear wave splitting in Appalachians and Urals: a case for multilayered anisotropy,J. Geophysical Res., v104, 17975-17994, 1999.

Ague, J. J., J. Park, and D. M. Rye, Regional metamorphic dehydration and seismic hazard, Geophysical Research Letters, v25, 4221-4224, 1998.

Levin, V., and J. Park, Quasi-Love phases between Tonga and Hawaii: observations, simulations and explanations, J. Geophysical Research, v103, p24321-24331, 1998.

Levin, V., and J. Park, P-SH conversions in layered media with hexagonally symmetric anisotropy: A cookbook, Pure and Applied Geophysics, v151, 669--697, 1998.

Hinnov, L. A., and J. Park, Detection of astronomical cycles in the sedimentary record by frequency modulation (FM) analysis, J. Sedimentary Research, v68, pp524-539, 1998.

van der Vink, G. E., J. Park, R. Allen, T. Wallace and C. Hennet, False accusations, undetected tests, and implications for the Comprehensive Test Ban Treaty, Arms Control Today, v28 n4 (May), pp7-13, 1998. Scanned article with figures

Park, J., Free oscillations in an anisotropic mantle: Path-integral asymptotics, Geophys. J. Int., v129, p399-411, 1997.

Levin, V., and J. Park, Crustal anisotropy in the Ural Mtns foredeep from teleseismic receiver functions,Geophysical Research Letters, v24, p1283-1286, 1997.

Levin, V., and J. Park, P-SH conversions in a flat-layered medium with anisotropy of arbitrary orientation, Geophys. J. Int., v131, pp 253-266, 1997.

Park, J., Surface waves in layered anisotropic structures, Geophys. J. Int. v126, 173-184, 1996.

Mann, M. E., and J. Park, Greenhouse warming and the seasonal cycle of temperature: Observations versus model predictions, Geophysical Research Letters, v23, 1111-1114, 1996.

Mann, M. E., and J. Park, Joint spatiotemporal modes of surface temperature and sea-level pressure variability in the Northern Hemisphere during the last century, Journal of Climate, v9, 2137-2162, 1996.

Yu, Y., J. Park, and F. Wu, Mantle anisotropy beneath the Tibetan Plateau: Evidence from long-period surface waves, Physics of the Earth and Planetary Interiors, v87, 231-246, 1995.

Lees, J., and J. Park, Multiple-taper spectral analysis: A stand-alone C- subroutine, Computers & Geosciences, v21, 199-236, 1995. TARFILE of Multiple Taper Spectrum Analysis Code

Park, J., Seismic Wave Propagation Studies in the US: 1991-1994, Reviews of Geophysics, Supplement (US National Report to the IUGG), v33, 335-340, 1995.

Lilly, J., and J. Park, Multiwavelet spectral and polarization analysis of seismic records, Geophys. J. Int., v122, 1001-1021, 1995.

Mann, M. E., J. Park and R. Bradley, Global interdecadal and century-scale climate oscillations during the last half millenium, Nature, v378, 266-270, 1995.

Yu, Y., and J. Park, Hunting for azimuthal anisotropy beneath the Pacific Ocean region, J. Geophys. Res., v99, 15399-15422, 1994.

Su, L., and J. Park, Anisotropy and the splitting of PS waves,Physics of the Earth and Planetary Interiors, v86, 263-276, 1994.

Mann, M., and J. Park, Global-scale modes of surface temperature variability on interannual to century time scales, Journal of Geophysical Research, v99, 25819-25834, 1994.

Van der Vink, G. E., D. Simpson, C. Hennet, J. Park and T. Wallace, Nuclear Testing and Nonproliferation: The Role of Seismology in Deterring the Development of Nuclear Weapons, report to US Congress, 94pp, February 1994.

van der Vink, G. E., and J. Park, "Nuclear Test Ban Monitoring: New Requirements, New Resources" (Policy Forum Article) Science, v263, 634-635, 4 February 1994.

Park, J., and R. J. Oglesby, The effect of orbital cycles on late and middle Cretaceous climate: A comparative GCM modelling study, in Orbital Forcing and Cyclic Sequences, International Association of Sedimentologists Special publication, eds. P. L. deBoer and D. G. Smith, v19, 509-529, 1994.

Park, J., and Y. Yu, Seismic determination of elastic anisotropy and mantle flow, Science, v261, 1159-1162, 1993.

Park, J., S. L. D'Hondt, J. W. King and C. Gibson, Late Cretaceous precessional cycles in double time: A warm-earth Milankovitch response , Science, v261, 1431-1434, 1993.

Park, J., The sensitivity of seismic free oscillations to upper mantle anisotropy I. Zonal symmetry, J. Geophys. Res., v98, 19933-19949, 1993.

Park, J., & K. A. Maasch, Plio-Pleistocene time evolution of the 100-kyr cycle in marine paleoclimate records, Journal of Geophysical Research, v98, 447-461, 1993.

Mann, M. E., and J. Park, Spatial correlations of interdecadal variation in global surface temperatures, Geophysical Research Letters, v20, 1055-1058, 1993.

Yu, Y. & J. Park, Upper mantle anisotropy and coupled-mode long-period surface waves, Geophys. J. Int., v114, 473-489, 1993.

Su, L., J. Park & Y. Yu, Born seismograms using coupled free oscillations: The effects of strong coupling and anisotropy, Geophys. J. Int., v115, 849-862, 1993.

Park, J., Envelope estimation for quasi-periodic geophysical signals in noise: A multitaper approach, pp. 189-219, in Statistics in the Environmental & Earth Sciences, eds A. T. Walden and P. Guttorp, Edward Arnold, London, 1992.

Park, J., & Y. Yu, Anisotropy and coupled free oscillations: Simplified models and surface wave observations, Geophys. J. Int. v110, 401-420, 1992.

Um, J., F. A. Dahlen & J. Park, Normal mode multiplet coupling along a dispersion branch, Geophys. J. Int., v106, 11-36, 1991.

Shalev, E., J. Park & A. L. Lerner-Lam, Crustal velocity and Moho topography in central New Hampshire, Journal of Geophysical Research, v96, 16415-16427, 1991.

Oglesby, R. J., & J. Park, Cyclic sedimentation, climate and orbital insolation changes in the Cretaceous, in The Encyclopedia of Earth System Science, Vol 2, ed. W. A. Nierenberg, p13-27, 1991.

Park, J., & R. J. Oglesby, Milankovitch rhythms in the Mid-Cretaceous: a GCM modelling study, Global and Planetary Change, v4, 329-356, 1991.

Park, J., The subspace-projection method for constructing first-order coupled-mode long-period synthetic seismograms, Geophys. J. Int., v101, 111-124, 1990.

Park, J., Radial mode observations from the 5/23/89 Macquarie Ridge earthquake, Geophysical Research Letters, v17, 1005-1008, 1990.

Park, J., Observations of the envelopes of coupled free oscillations, Geophysical Research Letters, v17, 1489-1492, 1990.

Park, J., & R. J. Oglesby, A comparison of precession and obliquity effects in a Cretaceous paleoclimate simulation, Geophysical Research Letters, v17, 1929-1932, 1990.

Lerner-Lam, A., & J. Park, Frequency-dependent refraction and multipathing of 10-100 sec surface waves in the Western Pacific, Geophysical Research Letters, v16, 527-530, 1989.

Oglesby, R., & J. Park, Cyclic sedimentation in the Cretaceous: the effect of precessional insolation changes on atmospheric dynamics, J. Geophys. Res., v94, 14793-14816, 1989.

Park, J., Roughness constraints in surface wave tomography, Geophys. Res. Letts., v16, 1329-1332, 1989.

Park, J., Free oscillation coupling theory, in Mathematical Geophysics, edited by N.J. Vlaar, G. Nolet, M.J.R. Wortel and S.A.P.L. Cloetingh, pp 31-52, D. Riedel, Dordrecht, 1988.

Hinnov, L., & J. Park, Multi-windowed spectrum estimates of the ILS polar motion, in The Earth's Rotation and Reference Frames for Geodesy and Geodynamics, IAU Symposium No. 128, edited by A. K. Babcock and G. A. Wilkins, pp221-226, Kluwer Academic, Amsterdam, 1988.

Park, J., Asymptotic coupled-mode expressions for multiplet amplitude anomalies and frequency shifts on an aspherical earth, Geophys. J. Roy. Astron. Soc., v90, 129-170, 1987.

Pollitz, F., J. Park & F. A. Dahlen, Observations of free oscillation amplitude anomalies, Geophys. Res. Letts., v14, 895-898, 1987.

Park, J., F. L. Vernon III & C. R. Lindberg, Frequency-dependent polarization analysis of high frequency seismograms, J. Geophys. Res., v92, 12664-12674, 1987.

Park, J., C. R. Lindberg & F. L. Vernon III, Multitaper spectral analysis of high frequency seismograms, J. Geophys. Res., v92, 12675-12684, 1987.

Park, J., & T. D. Herbert, Hunting for paleoclimatic periodicities in a geologic time series with an uncertain time scale, J. Geophys. Res., v92, 14027-14040, 1987.

Park, J., C. R. Lindberg & D. J. Thomson, Multiple taper spectral analysis of terrestrial free oscillations: Part 1, Geophys. J. Roy. Astron. Soc., v91, 755-794, 1987.

Lindberg, C. R., & J. Park, Multiple taper spectral analysis of terrestrial free oscillations: Part 2, Geophys. J. Roy. Astron. Soc., v91, 795-836, 1987.

Park, J., Synthetic seismograms from coupled free oscillations: the effects of lateral structure and rotation, J. Geophys. Res., v91, 6441-6464, 1986.

Park, J., & F. Gilbert, Coupled free oscillations of an aspherical dissipative rotating earth: Galerkin theory, J. Geophys. Res., v91, 7241-7260, 1986.

Park, J., & A. D. Chave, on the estimation of magnetotelluric response functions using the singular value decomposition, Geophys. J. Roy. Astron. Soc., v77, 683-709, 1984.

Masters, G., J. Park & F. Gilbert, Observations of coupled spheroidal and toroidal modes, J. Geophys. Res., v88, 10285-10298, 1983.

Backus, G., J. Park & D. Garbasz, On the relative importance of the driving forces of plate motion, Geophys. J. Roy. Astron. Soc., v67, 415-435, 1981.

Address and E-mail:

Prof. Jeffrey J. Park
Yale Geology Dept.
P.O. Box 208109
New Haven, CT 06520-8109
(203)432-3172

jeffrey.park@yale.edu

Courier Address (FEDEX and UPS)

      Prof. Jeffrey J. Park
      Yale Geology Dept.
Kline Geology Laboratory
      210 Whitney Avenue
      New Haven, CT 06511

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