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  • 1
    Electronic Resource
    Electronic Resource
    Fractals in Fluid Mechanics (1988)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Fluid Mechanics 20 (1988), S. 5-16 
    Details
    ISSN: 0066-4189
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.fl.20.010188.000253
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  • 2
    Electronic Resource
    Electronic Resource
    Earthquake Prediction (1991)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Earth and Planetary Sciences 19 (1991), S. 263-281 
    Details
    ISSN: 0084-6597
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ea.19.050191.001403
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  • 3
    Electronic Resource
    Electronic Resource
    Magma Migration (1982)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Earth and Planetary Sciences 10 (1982), S. 397-408 
    Details
    ISSN: 0084-6597
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.ea.10.050182.002145
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  • 4
    Electronic Resource
    Electronic Resource
    Cascade model for fluvial geomorphology (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 100 (1990), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Erosional landscapes are generally scale invariant and fractal. Spectral studies provide quantitative confirmation of this statement. Linear theories of erosion will not generate scale-invariant topography. In order to explain the fractal behaviour of landscapes we have introduced a modified Fourier series that is the basis for a renormalization approach. We have introduced a non-linear dynamical model for the decay of the modified Fourier series coefficients that yield a fractal spectra. We argue that a physical basis for our approach is that a fractal (or nearly fractal) distribution of storms (floods) continually renews erosional features on all scales.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1990.tb00696.x
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  • 5
    Electronic Resource
    Electronic Resource
    A mathematical model of vulcanian eruptions (1990)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 103 (1990), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The problem of an expansion wave propagating into a saturated magma is solved and used as a model of a vulcanian eruption. In our model for an explosive eruption we assume that a drop in pressure leads to the exsolution of magmatic volatiles. Initially the exsolved vapours create bubbles in the magma. We model the subsequent part of the exsolution process in which a foam is created; this is believed to be an essential feature of explosive volcanic eruptions. The foam also has the advantage that it can be modelled as a mixture or ‘pseudo-gas’ without slippage between the phases. Eventually the foam breaks up and becomes volcanic ash. Assuming that the exsolution of vapour is given by Henry's law, that the temperature is constant, that the magma and vapour have equal velocities, and neglecting wall friction and gravitational effects, an analytic solution for pressure, velocity, and vapour fraction is obtained for the expanding mixture in a constant area duct. The exit velocity u for the mixture is u= (ø0RT0)1/2In(P0/p), where ø0 is the original mass fraction of dissolved vapour, R is the gas constant for the vapour, T0 the constant temperature, and p0/p the pressure ratio across the expansion. With ø0= 1 per cent, T0= 1000°K, and p0/p= 100 we find u0= 300ms-1, consistent with observations for vulcanian eruptions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1990.tb01763.x
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  • 6
    Electronic Resource
    Electronic Resource
    Mantle Convection and the New Global Tectonics (1972)
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Fluid Mechanics 4 (1972), S. 33-66 
    Details
    ISSN: 0066-4189
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1146/annurev.fl.04.010172.000341
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  • 7
    Electronic Resource
    Electronic Resource
    Geochemistry: Mantle heterogeneity and convection (1983)
    [s.l.] : Nature Publishing Group
    Nature 305 (1983), S. 278-279 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE nature of mantle heterogeneity and its geodynamic significance was the subject of a recent symposium* catalysed by the presentation of the first on-shore results of IPOD Leg 82 of the Glomar Challenger drilling. The Leg had been designed to study in time and space mantle heterogeneity ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/305278a0
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  • 8
    Electronic Resource
    Electronic Resource
    Collapse of loaded fractal trees (1985)
    [s.l.] : Nature Publishing Group
    Nature 313 (1985), S. 671-672 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] As a simple example of a fractal tree we consider the two-dimensional structure shown in Fig. 1 and its failure under the application of a vertical load V. Without any failure, the load on each leg of order n is Vn = V/2n cos q/2. We hypothesize that the legs have a statistical distribution of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/313671a0
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  • 9
    Electronic Resource
    Electronic Resource
    Mid-plate Tectonics (1973)
    [s.l.] : Nature Publishing Group
    Nature 244 (1973), S. 337-339 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] There are many examples of mid-plate tectonics which require an explanation. Oceanic island chains, continental graben and rift valleys, and features which pass from continental areas into oceanic parts of the same plate, are particularly important. We argue that these are the result of crustal ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/244337a0
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  • 10
    Electronic Resource
    Electronic Resource
    Evolution of the Moon's orbit and the origin of life (1974)
    [s.l.] : Nature Publishing Group
    Nature 251 (1974), S. 124-125 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 a, Data on the number of solar days in a year from molluscan shells is compared with the dependence we predicted and the value deduced from satellite observations (Newton11), b, Data on the number of solar days in a lunar month as in a. Error bars are standard deviations of the data, c, Data ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/251124a0
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