Publications
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Thermal evolution of a differentiated Ganymede and implications for surface features
Thermal evolution models are presented for Ganymede, assuming a mostly differentiated initial state of a water ocean overlying a rock layer. The only heat sources are assumed to be primordial heat (provided by accretion) and the long-lived radiogenic heat sources in the rock component. As Ganymede cools, the ocean thins, and two ice layers develop, one above composed of ice I, and the other below
Authors
Randolph L. Kirk, David J. Stevenson
Hydromagnetic constraints on deep zonal flows in the giant planets
The observed zonal flows of the giant planets will, if they penetrate below the visible atmosphere, interact significantly with the planetary magnetic field outside the metallized core. The appropriate measure of this interaction is the Chandrasekhar number Q = H^2 /4πρνα^2 λ (H = radial component of the magnetic field, ν = eddy viscosity, λ = magnetic diffusivity, α^-1 = length scale on which λ v
Authors
Randolph L. Kirk, David J. Stevenson
Characteristics of anelastic reflection-refraction coefficients with implications for calculation of synthetic seismograms
No abstract available.
Authors
Roger D. Borcherdt
On the aftershock sequence of the earthquake of January 31, 1986 in northeastern Ohio; effects of bandwidth and local geology on observed high-frequency ground motion
No abstract available.
Authors
Roger D. Borcherdt, G. Glassmoyer
Passive margins: U.S. Geological Survey Line 19 across the Georges Bank basin
Georges Bank is a shallow part of the Atlantic continental shelf southeast of New England (Emery and Uchupi, 1972, 1984). This bank, however, is merely the upper surface of several sedimentary basins overlying a block-faulted basement of igneous and metamorphic crystalline rock. Sedimentary rock forms a seaward-thickening cover that has accumulated in one main depocenter and several ancillary depr
Authors
Kim D. Klitgord, John S. Schlee, John A. Grow
Unreinforced masonry buildings
No abstract available.
An interview with Otto Nuttli
No abstract available.