Publications
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Seismology of the continental crust and upper mantle
More seismological studies of the continental crust and sub‐crustal lithosphere of the United States have been completed in the past four years than at any other similar period, and a continued growth in activity is likely to continue for years to come. Several trends account for this phenomenon. First, the interest in seismic reflection studies generated initially by COCORP results in this countr
Authors
Walter D. Mooney
Coincident seismic reflection/refraction studies of the continental lithosphere: A global review
Vertical-incidence reflection profiling has identified several characteristic features of the continental lithosphere including a generally transparent upper crust, a reflective lower crust, reflections from the crust-mantle boundary, and a commonly transparent upper mantle. The underlying physical causes of these characteristic features remain poorly understood. This review summarizes additional
Authors
Walter D. Mooney, Thomas M. Brocher
A geologic interpretation of seismic-refraction results in northeastern California
In 1981, the U.S. Geological Survey conducted a seismic-refraction experiment in northeastern California designed to study the Klamath Mountains, Cascade Range, Modoc Plateau, and Basin and Range provinces. Key profiles include 135-km-long, north-south lines in the Klamath Mountains and Modoc Plateau provinces and a 260-km-long, east-west line crossing all of the provinces.The seismic-velocity mod
Authors
Gary S. Fuis, J.J. Zucca, Walter D. Mooney, B. Milkereit
A transect across the Mesozoic accretionary margin of central California
No abstract available.
Authors
Carl M. Wentworth, Mark D. Zoback, Andrew Griscom, Robert C. Jachens, Walter D. Mooney
Crustal structure beneath exposed accreted terranes of Southern Alaska
The crustal structure beneath the exposed terranes of southern Alaska has been explored using coincident seismic refraction and reflection profiling. A wide-angle reflector at 8-9 km depth, at the base of an inferred low-velocity zone, underlies the Peninsular and Chugach terranes, appears to truncate their boundary, and may represent a horizontal decollement beneath the terranes. The crust beneat
Authors
Gary S. Fuis, E. L. Ambos, Walter D. Mooney, R.A. Page, Michael A. Fisher, Thomas M. Brocher, J.J. Taber
Ionic conductivity of quartz: DC time dependence and transition in charge carriers
The time dependence of DC electrical conductivity in the c-axis direction of quartz can be accounted for by a transition in charge carriers from interstitial alkali impurities to interstitial H. The diffusive transport rates of Li, Na, and K are rapid parallel to c and have been shown to be responsible for the highly anisotropic electrical conductivity measured at short times. With increasing time
Authors
A. K. Kronenberg, Stephen H. Kirby
Inelastic properties of ice Ih at low temperatures and high pressures
The aim of our research programme is to explore the rheological behavior of H2O ices under conditions appropriate to the interiors of the icy satellites of the outer planets in order to give insight into their deformation. To this end, we have performed over 100 constant-strain-rate compression tests at pressures to 500 MPa and temperatures as low as 77 K. At P > 30 MPa, ice Ih fails by a shear in
Authors
Stephen H. Kirby, William B. Durham, M.L. Beeman, H.C. Heard
Inelastic properties of several high pressure crystalline phases of H2O: Ices II, III, and V
We have performed deformation experiments on cylinders of polycrystalline H2O at temperatures from 178 to 257 K at pressures to 500 MPa in the stability fields of ices II, III, and V. Ice II is the strongest of the phases, having a strength under laboratory conditions roughly comparable to that of ice Ih. Ice V is somewhat weaker than ice II. Ice III is extremely weak and over geologic times must
Authors
William B. Durham, Stephen H. Kirby, H. C. Heard, Laura A. Stern
Correction to “Rheology of the lithosphere: Selected topics”
No abstract available.
Authors
Stephen H. Kirby, A. K. Kronenberg
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
Reflections from midcrustal rocks within the Mesozoic subduction complex near the eastern Aleutian Trench
Seismic reflection data collected in 1973 by Western Geophysical Company show that highly reflective rocks make up the midcrust of the convergent margin adjacent to the eastern Aleutian Trench. These rocks form an arch that strikes obliquely across the strongly expressed northeast-southwest structural grain of exposed Mesozoic rocks. In an earlier report we proposed that the deep events mark the l
Authors
M. A. Fisher, Roland E. von Huene, G.L. Smith