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Program for SEDI 2002

Geophysical and Geochemical Evolution of the Deep Earth

Last updated July 1st 2002

• 9:05-9:50 Formation of Earth's Core D. J. Stevenson
• 10:00-10:30 Coffee Break
• 10:30-11.15 The Earth's core: its composition, formation and evolution W. McDonough
• 11:30-12:30 Discussion - led by Bernie Wood

• 2:00-2:45 Core Constituents under Core Conditions: What do we know? What do we need to know? J. Michael Brown
• 3:00-3:30 Coffee Break
• 3:30-4:00 Properties of Perovskites and Effects on the Lower Mantle Weidner, D.J., Chen J., Li, B.
• 4:15-5:30 Discussion - led by Guy Masters

• 9:00-9:45     Thermal History of the Geodynamo, D. Gubbins
• 10:00-10:30  Coffee Break
• 10:30-11:00  An Evaluation of Precambrian Paleomagnetic Data,  J. Gee
• 11:15-12:30 Discussion - led by Bruce Buffett

• See end of program for complete list of posters. Posters will be on display all week.

• 9:00-9:45 Inner Core Structure and Rotation, K. C. Creager and A. Ouzounis
• 10:00-10:30  Coffee Break
• 10:30-11:00 Origin of Seismic Anisotropy in the Inner Core S. Karato
• 11:15-12:30 Discussion -  led by John Vidale

• RIVER RAFTING - sign up at desk, about $25
• HIKING

• 9:00-9:45  Probing the Core with Observational Geomagnetism R. Holme
• 10:00-10:30  Coffee Break
• 10:30-11:00   A comparison of historic and prehistoric geomagnetic field secular variation - extending our understanding of magnetic field dynamics to millennial time scales S. P. Lund
• 11:15-12:30 Discussion - led by Gauthier Hulot

• 2:00-2:45 How well do Numerical Dynamos model the Geodynamo? P. Olson
• 3:00-3:30  Coffee Break
• 3:30-4:00 Liquid Sodium Laboratory Models of the Earth's Outer Core D.P. Lathrop
• 4:15-5:30 Discussion - led by Philippe Cardin

• 9:00-9:45  The D" Region, Ultra-Low Velocity Zones and Anomalous Velocity Gradients: Tectonism, Volcanism and Sedimentation in the Other Thermal Boundary Layer, Q. Williams
• 10:00-10:30  Coffee Break
• 10:30-11:00 D" anisotropy: Dynamics of the lower--mantle boundary layer. J-M. Kendall
• 11:15-12:30 Discussion - led by Louise Kellogg

• Magnetic properties of iron at high pressures S. Gilder $^{a}$, M. LeGoff $^{a}$, P. Besson $^{a}$, J. Glen $^{b}$, J. Peyronneau $^{a}$ and J.C. Chervin $^{c}$
• The melting of iron under Earthís core conditions by ab initio calculations D. Alfè $^{a,b}$, L. Vo?adlo$^{a}$, G. D.  Price$^{a}$,and  M. J. Gillan $^{b}$
• Is bcc-Fe stable in the Earth's core? L.Vocadlo $^(a)$, D.Alfe $^(a,b)$, M.J.Gillan $^(b)$, G.D.Price $^(a)$ and I.G.Wood $^(a)$
• The Thermal Conductivity Profile of the Lower Mantle and the Present Day Net Core Heat Flux. A.R. Calderwood

• Estimation of Heat Flow from the Core and Sources in the Lower Mantle Using Reliable Thermal Data A.A. Stepanov $^{a}$ and S.V. Starchenco $^{b}
•  Whispers in the Quiet Zone L. Tauxe $^a$, C. Constable, $^a$ and M. Cronin $^a$
•  Estimates of Heat Flow in the Deep Mantle Based on the Power Requirement for the Geodynamo Bruce Buffett
•  Large-scale variations of the likely heat flow out of the core M.Khristoforova
•  The inner core and the geodynamo S. Labrosse $^{a}$, M. Macouin $^{a}$, J.-L. Le Mouël $^{a}$, J.-P. Poirier $^{a}$, J.-P. Valet $^{a}$ and J. Besse $^{a}$
• Silicate-hosted paleomagnetism: A clearer view of the ancient geomagnetic field? G.R. Scott $^{a}$, P.R. Renne $^{a,b}$ and J.M. Feinberg $^{b}$
• Nature of the Cretaceous and Archean geodynamo from Thellier analyses of single plagioclase crystals J.A. Tarduno, R.D. Cottrell and A.V. Smirnov
• Do superchrons occur without any paleomagnetic warning ? G. Hulot and Y. Gallet

• Free Oscillations in the Axial Rotation of the Core-Mantle System J.E. Mound and B.A. Buffett
• Constraints on core structure from small aperture seismic arrays K.D. Koper, M.L. Pyle, and J.M. Franks
• Anisotropy at the Centre of the Inner Core: Evidence for the Inner-Most Inner Core M. Ishii $^{a}$, and A.M. Dziewo\'{n}ski $^{a}
• Regional differences of the anisotropy and differential rotation of the inner core T. ISSE
• Evidence for Inner Core Super-Rotation From Time-Dependent Differential PKP Travel Times Observed at Beijing Seismic Network

Xiaoxia Xu and Xiaodong Song
• THE SEARCH FOR THE SLICHTER MODE: COMPARISON OF NOISE LEVELS OF GGP SUPERCONDUCTING GRAVIMETERS AND INVESTIGATION OF A STACKING METHOD S. Rosat$^{(a)}$, J. Hinderer$^{(a)}$, D. Crossley$^{(b)}$ and L. Rivera$^{(a)}$
•  A Fabric Interpretation of Seismic Attenuation by Scattering in the Inner Core V.F. Cormier and X. Li
•  Preferred orientations of hcp alloys due to fluid flow during solidification, and the texture of the inner core M.I. Bergman, S. Agrawal, and M. Carter
•  Seismic velocity and attentuation structures at the top of the inner core L. Wen $^{a}$ and F. Niu $^{b}$
• The Splitting of the Long Period Seismic Modes and of the Slichter Mode by Rotation and Ellipticity Y. Rogister
• Depth and Lateral Variations of Inner Core Anisotropy Xinlei Sun and Xiaodong Song
• The Earth's Free Oscillations and the Differential Rotation of the Inner Core G. Laske and G. Masters

• CMB Motion and Coupling J.P. Vanyo
• Spherically Symmetrical Heat-Mass Transfer in Decreasing Planets Cores M. Kotelnikova $^{a}$ and S. Starchenko $^{b}$
•   Axis-Symmetrical Models of the Geomagnetic Field's Source V. Botvinovsky $^{a}$, S. Starchenko $^{b}$
•   Experimental evidence of nonlinear resonance effects between retrograde precession and the tilt-over mode within a spheroid. J. Noir, P. Cardin, D. Jault and J.P. Masson $^{a}$
•   The Geomagnetic Jerks and Responsible for Them Movement System on the Surface of the Earth's Liquid Core A. Simonyan
•   Asymptotic Models for Resistive Instability in the Earth's Outer Core S.D. London
•   A Continuous Global Geomagnetic Field Model for the Past 3000 Years M. Korte and C. G. Constable
•   Surface zonal flows induced by thermal convection trapped below a stably stratified layer in a rapidly rotating spherical shell S.

Takehiro $^{a}$ and J.R. Lister $^{b}$
•   Intense equatorial flux spots on the surface of Earth's core Andrew Jackson
•   Nutation and Earth's core T. Van Hoolst, V. Dehant, O. de Viron, S. Ponsar
•   Seismic velocity structure in the outer core W.-C. Yu $^{a}$, L. Wen $^{a}$ and F. Niu $^{b}$
•   Azimuthal force balance on co-axial cylinders and torsional oscillations in a numerical geodynamo model M. Dumberry and J. Bloxham
•   Torsional Oscillations of the Core in a High Frequency Flow Model S. Zatman$^{a}$ and J. Bloxham$^{b}$
•   Searching for signs of the geodynamo in relative paleointensity records: Statistical assessment and quality control D.G. McMillan $^a$, C.G. Constable $^a$ and R.L. Parker $^a$
• Geomagnetic directional and intensity variations over 350 kyr from lava sequences recorded in O'ahu, Hawaii, USA E. Herrero-Bervera $^{a}$ and J-P. Valet $^{b}$
• Large Variance of the Topographic Torque Due to Core Surface Flow Obtained by Using Geomagnetic Data S. Asari, H. Shimizu and H. Utada
• Thermal Instability of a Rotating Oblate Spheroid D.J. Ivers
• Paleomagnetic intensity data: a window on dynamics of the Earth's fluid core? Ross Baker and Keith Aldridge
• Archeomagnetic description of the secular variation of the Earth's magnetic field in Western Europe over the past 3000 years A. Genevey

$^{a}$ $^{b}$, Y. Gallet $^{b}$ and M. Le Goff $^{b}$
• Turbulent Viscosity of the Earth's Core Deduced from Experiments P. Cardin $^{a}$, D. Brito $^{a}$ and J. Aurnou $^{b}$
• Space-time analysis of the geomagnetic field at the core-mantle boundary C.C. Finlay and A. Jackson
• One-norm modelling of flow at the core-mantle boundary K. Whaler $^{a}$, R. Holme$^{b}$ and A. Jackson $^{c}$
• Satellite-derived core surface flows C. Eymin and G. Hulot
• Dynamics of Paleomagnetic Secular Variation on a Millennial Scale - Observations and Models S. P. Lund $^{a}$ and C. Constable $^{b}$

• Instabilities of the Stewartson layer N. Schaeffer $^{a}$, P. Cardin $^{a}$
• shell model approach to the turbulence in a rotating sphere M. Reshetnyak $^{a,b}$, I. Cupal $^{c}$, and P. Hejda $^{c}$
• Orbital Influence on Earth's Magnetic Field: 100,000-Year Periodicity in Inclination T. Yamazaki $^{a}$ and H. Oda $^{a,b}
• On the effect of Mass Redistribution in the Core on Time-varying Gravity at the Earth?s Surface Weijia Kuang$^{a,b}$, Benjamin F.

Chao$^{b}$
• Experiments on highly supercritical thermal convection in a rapidly rotating hemispherical shell Ikuro Sumita $^{a}$, Peter Olson

$^{b}$
• Development of a MHD Simulation Code in a Rotating Spherical Shell using GeoFEM Platform H. Matsui
•   Rotating convection-driven dynamos at low Ekman number J. Rotvig and C.A. Jones
•   Dynamo Simulations and the Geomagnetic Field Masaru Kono$^{a}$ and Paul H. Roberts $^{b}$
•   A Subgrid-Scale Method for Modeling the Effects of Unresolved Turbulence in Geodynamo Simulations Bruce Buffett $^{a}$ and Gary Glatzmaier $^{b}$
• The parameter region for reversing dynamos in a numerical model C. Kutzner, U.R. Christensen
• Inner-core conductivity and reversals in numerical dynamo simulations J. Wicht
• 3D geodynamo calcuated by the control volume method I. Cupal $^{a}$, P. Hejda $^{a}$ and M. Reshetnyak $^{b,c}
• Finite Volume Solution of Spherical Dynamo Problems H. Harder and U. Hansen
• Clouds of transient small scale motion F. Siso-Nadal and P.A. Davidson
• Some Characteristics of MHD Turbulence in the Core\\ --Anisotropic Diffusivity and Intermittency-- M. Matsushima $^{a}$
• linear, steady, buoyancy-driven hydromagnetic perturbations in a homogeneous, rapidly rotating fluid having small elsasser

number D. Loper $^(a), A. Chulliat $^(a) and H. Shimizu $^(b)
• Transient growth of magnetic fields in a spherical geometry: the non-normality of the induction equation. P.W. Livermore $^{a}$, A. Jackson $^{a}$ and R. Kerswell $^{b}$
• Strong Field Anisotropic Diffusion Models for the Earth's Core C.G. Phillips $^{a}$ and D.J. Ivers $^{b}$
• Towards a Rapidly Rotating Liquid Sodium Dynamo Experiment P. Cardin, D. Brito, D. Jault, H.C. Nataf, N. Schaeffer and J. Noir.

• Heat transfer and interfacial temperature of the two-layered convection: A mechanism for transferring excess heat from the core A.

Namiki
•   Dynamics of melting at the core-mantle boundary J. Hernlund $^{a}$, P.J. Tackley $^{a}$
•  The origin of strong heterogeneity at the lowermost mantle T. Nakagawa and P. J. Tackley $^{a}$
•  Effects of crust and mantle heterogeneity on PP/P and SS/S amplitude ratios J. Ritsema $^{a} , L.A. Rivera $^{b}, J. Tromp $^{a}, D. Komatitsch $^{a}, H.-J. van Heijst $^{a}
• The Influence of a Compositional Boundary Layer on the Fixity, Spacing and Lifetime of Mantle Plumes A. Mark Jellinek and Michael Manga
• Further constraints on the Ridge-shaped Chemical Plume beneath South Africa S Ni adn Don V. Helmberger
• Global Variations in Mantle Q Structure L.M. Warren and P.M. Shearer
• Unobserved Strong Heterogeneity Caused by Deep Mantle Layering P. J. Tackley
• Mantle flow models with core-mantle boundary constraints Bernhard Steinberger $^{a}$ and Richard Holme $^{b}$
•  Modeling the Global Short-Period Wavefield with a Monte Carlo Seismic Photon Method P.M. Shearer $^{a}$ and P.S. Earle $^{b}$
•  Electrochemical behavior at a metal-silicate interface A. Kavner, D. Walker
•  Deep Mantle Structure Beneath the Caribbean T. Lay $^{a}$ and E. Garnero $^{b}$
•  Equation of state of a natural upper-mantle rock at conditions of the Earth's lower mantle, and evidence for mantle layering K. K. M.

Lee $^{a}$, B. O'Neill, W. R. Panero $^{b}$, S-H. Shim $^{a}$, L. R. Benedetti $^{c}$ and R. Jeanloz $^{a}$
•  An "old continent" at the base of the earth's mantle? L. Wen
•  Mixing Characteristics in Mantle Convection: Influence of Plate Tectonics, Heating Mode and Viscosity Variations S. Xie and P. J.

Tackley $^{a}$
•  Resolution and Error Analysis of Lower Mantle Tomographic Models C. Reif, G. Masters, G. Laske
•  Heat transfer across the mantle in a plate tectonics regime S. Labrosse $^{a}$ and P. J. Tackley $^{b}$
•  Preferred Reversal Paths due to Sediments at the Core-Mantle Boundary Simon Costin and Bruce Buffett
• Dynamics and Longevity of an Initially Stratified Mantle with Implications for Mantle Temperatures H. M. Gonnermann $^{a}$, M. Manga $^{a}$, D. R. Stegman $^{a}$, A. M. Jellinek $^{a}$
• A Search for D" Layer Silent Earthquakes Using the SG Records at Canberra, Australia, and the Extensometer Records at Matsushiro, Japan I. Kawasaki
• Parameterized thermo-chemical evolution of a layered mantle: stealth layers may require replenishment D R. Stegman $^{a}$, H. M. Gonnermann $^{a}$, M. Manga $^{a}$, and M. A. Richards $^{a}$