Zobrazeno 1 - 10
of 160
pro vyhledávání: '"Leon Knopoff"'
Autor:
Mrinal K. Sen, Leon Knopoff, D.A. Mendelsohn, L. Neil Frazer, Hans B. Helle, Alexander Druzhinin, David R. Dalton, Andrzej Hanyga, A. W. Trorey, Kamill Klem-Musatov, Martin Tygel, Jan Drewes Achenbach, José M. Carcione, Fred J. Hilterman, Jan Pajchel, Matthew Yedlin, P.M. Bakker, Boris Zavalishin, John R. Berryhill, Arkady Aizenberg, Bjørn Ursin, Anthony F. Gangi, Arthur K. Gautesen
Publikováno v:
Seismic Diffraction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::813c3c458081a176c307cc85be886432
https://doi.org/10.1190/1.9781560803188.ch2
https://doi.org/10.1190/1.9781560803188.ch2
Autor:
Leon Knopoff
Publikováno v:
Geophysical Journal of the Royal Astronomical Society. 14:341-346
Summary Present estimates of viscosity and other pertinent parameters make it unlikely that thermal convection exists in the lower mantle. Convection may be considered from the point of view of an instability process for the upper mantle but the prob
Publikováno v:
Geophysical Journal of the Royal Astronomical Society. 35:169-184
Summary The tearing and healing of a one-dimensional crack in a solid, in the presence of external tectonic forces, pre-stress, static friction, cohesion and dynamic friction is investigated. It is found that cohesive forces have a strong influence o
Autor:
Leon Knopoff, Yun-Tai Chen
Publikováno v:
Bulletin of the Seismological Society of America. 99:1091-1102
We reexamine two canons of the seismological literature, that elastic displacements in the far field are proportional to slip velocities on the dynamical fault surface, and that dynamical in-plane slip on an earthquake fault has a double-couple body
Publikováno v:
Geophysical Journal of the Royal Astronomical Society. 42:931-943
Summary. A summary is given of the multimode, Rayleigh wave response characteristics for strike-slip sources. The sources are located at various depths within the crust of a shield structure.
Autor:
Leon Knopoff, J. O. Mouton
Publikováno v:
Geophysical Journal of the Royal Astronomical Society. 42:591-606
Summary A number of postulates concerning the nature of faulting have been used in the construction of kinematical models, which give the source parameters of seismic moment, fault length, and stress drop from the spectral properties of d.c. level an
Autor:
Leon Knopoff, X. X. Ni
Publikováno v:
Geophysical Journal International. 147:1-6
SUMMARY Numerical solutions by finite-difference techniques to problems of dynamical fracture growth exhibit oscillations with large amplitudes near the edges of the fractures that are caused by the stepwise advance of the edge of the crack across th
Publikováno v:
Journal of Geophysical Research: Solid Earth. 105:28035-28043
We consider the problem of dynamic fracture growth characterized by linear slip-weakening properties. If the problem is attacked by standard linear spectral methods, we show that the elastic wave radiation from the slip in the weakening zone has nonc
Publikováno v:
Science. 289:1746-1750
Despite being located 21 kilometers from the epicenter of the 1994 Northridge earthquake (magnitude 6.7), the city of Santa Monica experienced anomalously concentrated damage with Mercalli intensity IX, an intensity as large as that experienced in th
Publikováno v:
Physical Review Letters. 83:4219-4222
We study the statistics of simulated earthquakes in a quasistatic model of two parallel heterogeneous faults within a slowly driven elastic tectonic plate. The probability that one fault remains dormant while the other is active for a time Dt followi