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  • GEOPHYSICS  (14)
  • FractureT  (5)
  • Conductive heat transfer  (1)
  • 1985-1989  (13)
  • 1975-1979  (7)
  • 1
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    Are earthquakes deterministic or chaotic ? (1989)
    In:  Eos, Trans., Am. Geophys. Un., Basel, Inst. f. Geophys., Ruhr-Univ. Bochum, vol. 70, no. 41, pp. 880-882, pp. 1517, (ISSN: 1340-4202)
    Details
    Publication Date: 1989
    Keywords: Chaotic behaviour ; Earthquake precursor: prediction research ; FractureT ; Non-linear effects ; Proceedings of a conference ; report
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    BIBLIOGRAPHY SEISMOLOGY
  • 2
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    A fractal approach to the clustering of earthquakes: applications to the seismicity of the New Hebrides (1987)
    In:  Bull Seism. Soc. Am., Minsk, Polish Geothermal Association, vol. 77, no. 7045, pp. 1368-1381, pp. 2339, (ISSN: 1340-4202)
    Details
    Publication Date: 1987
    Keywords: Seismicity ; FractureT ; Fault zone ; BSSA
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    BIBLIOGRAPHY SEISMOLOGY
  • 3
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    Fractals in geology and geophysics (1989)
    In:  Pageoph, Taipei, EGS, vol. 131, no. 2, pp. 171-196, pp. 8039, (ISSN: 1340-4202)
    Details
    Publication Date: 1989
    Keywords: FractureT ; Chaotic behaviour
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    BIBLIOGRAPHY SEISMOLOGY
  • 4
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    A fractal approach to probabilistic seismic hazard assessment (1989)
    In:  Tectonophys., Taipei, EGS, vol. 167, no. 2, pp. 171-177, pp. 8039, (ISSN: 1340-4202)
    Details
    Publication Date: 1989
    Keywords: FractureT ; Earthquake precursor: prediction research ; Earthquake hazard ; Earthquake precursor: statistical anal. of seismicity
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    BIBLIOGRAPHY SEISMOLOGY
  • 5
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    Fractals and fragmentation (1986)
    In:  J. Geophys. Res., Taipei, EGS, vol. 91, no. 2, pp. 1921-1926, pp. 8039, (ISSN: 1340-4202)
    Details
    Publication Date: 1986
    Keywords: FractureT ; Fracture ; JGR
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    BIBLIOGRAPHY SEISMOLOGY
  • 6
    Electronic Resource
    Electronic Resource
    Flow visualization studies of two-phase thermal convection in a porous layer (1978)
    Springer
    Pure and applied geophysics 117 (1978), S. 321-330 
    Details
    ISSN: 1420-9136
    Keywords: Convective heat transfer ; Conductive heat transfer ; Water velocity ; Nusselt number ; Water-steam boundary
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Summary Two-phase thermal convection has been studied in a porous layer heated from below. A water saturated porous layer was heated so that boiling occurred on the lower boundary. In order to observe flow patterns one lateral dimension of the apparatus was made small. At moderate heat fluxes a water zone overlay a two-phase, steam-water zone. Water velocities and streamlines were obtained as well as the location of the two-phase zone for several heat fluxes. Within the water zone heat transfer took place due to both conduction and convection. In the two-phase zone heat transfer took place due to counterpercolation of steam and water.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00879757
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    Paper (German National Licenses)
    Fulltext
  • 7
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    Properties of the lithosphere and asthenosphere deduced from geoid observations (1985)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: Data from the GEOS-3 and SEASAT Satellites provided a very accurate geoid map over the oceans. Broad bathymetric features in the oceans such as oceanic swells and plateaus are fully compensated. It is shown that the geoid anomalies due to the density structures of the lithosphere are proportional to the first moment of the density distribution. The deepening of the ocean basins is attributed to thermal isostasy. The thickness of the oceanic lithosphere increases with age due to the loss of heat to the sea floor. Bathymetry and the geoid provide constraints on the extent of this heat loss. Offsets in the geoid across major fracture zones can also be used to constrain this problem. Geoid bathymetry correlations show that the Hawaiian and Bermuda swells and the Cape Verde Rise are probably due to lithospheric thinning.
    Keywords: GEOPHYSICS
    Type: NASA, Washington Geopotential Res. Mission (GRM); p 44-45
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    A renormalization group approach to the stick-slip behavior of faults (1985)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: A fault which is treated as an array of asperities with a perscribed statistical distribution of strengths is described. For a linear array the stress is transferred to a single adjacent asperity and for a two dimensional array to three adjacent asperities. It is shown that the solutions bifurcate at a critical applied stress. At stresses less than the critical stress virtually no asperities fail on a large scale and the fault is locked. At the critical stress the solution bifurcates and asperity failure cascades away from the nucleus of failure. It is found that the stick slip behavior of most faults can be attributed to the distribution of asperities on the fault. The observation of stick slip behavior on faults rather than stable sliding, why the observed level of seismicity on a locked fault is very small, and why the stress on a fault is less than that predicted by a standard value of the coefficient of friction are outlined.
    Keywords: GEOPHYSICS
    Type: Journal of Geophysical Research (ISSN 0148-0227); 90; 1894-190
    Format: text
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    NASA TECHNICAL REPORTS
  • 9
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    Lithospheric instabilities (1977)
    In:  Other Sources
    Details
    Publication Date: 2019-06-27
    Description: In this paper we define a mantle geoid. This is the height that hot solid mantle rock from the asthenosphere would attain if it were not confined by the lithosphere. The mantle geoid lies 3.25 km below the hydrogeoid (sea level). Hot mantle rock cannot entirely penetrate the continental lithosphere. One consequence of this partial penetration is rifting; as a result of rifting an accreting plate margin may be created. Hot mantle rock from the asthenosphere can penetrate through the oceanic lithosphere if the sea floor lies below the mantle geoid. Penetration of the oceanic lithosphere by this solid mantle rock is a necessary condition for the initiation of subduction. We argue that the same processes that are associated with rifting in continental lithosphere will be associated with behind arc spreading and the initiation of subduction in the oceanic lithosphere.
    Keywords: GEOPHYSICS
    Format: text
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  • 10
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    Geoid Anomalies and the Near-Surface Dipole Distribution of Mass (1978)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Although geoid or surface gravity anomalies cannot be uniquely related to an interior distribution of mass, they can be related to a surface mass distribution. However, over horizontal distances greater than about 100 km, the condition of isostatic equilibrium above the asthenosphere is a good approximation and the total mass per unit column is zero. Thus the surface distribution of mass is also zero. For this case we show that the surface gravitational potential anomaly can be uniquely related to a surface dipole distribution of mass. Variations in the thickness of the crust and lithosphere can be expected to produce undulations in the geoid.
    Keywords: GEOPHYSICS
    Type: Ohio State Univ. Appl. of Geodesy to Geodyn., an Intern. Symp.; p 257-260
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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