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  • 1990-1994  (2)
  • 1980-1984  (3)
  • 1970-1974  (1)
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  • 1
    Electronic Resource
    Electronic Resource
    Types of crust beneath the Ligurian Sea (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Terra nova 6 (1994), S. 0 
    Details
    ISSN: 1365-3121
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The structural setting beneath the Ligurian Sea resuJts from several tectonic events reflected in the nature of the crust. The central-western sector, called the Ligurian basin, is part of the northwestern Mediterranean. It is a marginal basin that was generated in Oligocene-Miocene time by subduction of the Adriatic plate beneath the European plate and by the eastward drift of the Corsica-Sardinia block. The eastern sector belongs to the Tyrrhenian basin system and is characterized by extensional activity which since Tortonian time superimposed an earlier compressional regime. Our effort has been addressed in particular towards simplifying the complex nature of the crust of the Ligurian basin by modelling its genesis using uniform extension and sea-floor depth variation with age. In the rift stage of the basin's evolution, the initial subsidence reaches the isostatic equilibrium level of the asthenosphere by a thinning factor of 3.15. The additional passive process, corresponding to the cooling of the lithosphere since 21 Ma, leads to a total tectonic subsidence of 3.4 km, representing the boundary of the extended continental crust. For values up to 4.1 km a transitional-type crust is expected, whereas for higher tectonic subsidence values a typical oceanic crust should exist. After setting these constraints, the boundaries of the different crust types have been drawn based on total tectonic subsidence observations deduced from bathymetry and post-rift sediment thickness. Although there is a general agreement with the previous reconstructions deduced from other experimental data, the oceanic realm has wider extent and more complex shape. The northernmost part of this realm shows crust of sub-oceanic type altemating basement highs with lower subsidence values. The observed surface heat flux is consistent with the predicted geothermal held in the Alpine-Provençal continental margin and in the oceanic domain. However, a characteristic thermal asymmetry is clearly visible astride the basin, due to the enhanced heat flux of the Corsica margin. Even if the uniform extension model accounts well at a regional level for the present basement depth, a remarkable tectonic subsidence excess has been found in the Alpine-Provençal continental margin. This evidence agrees with the reprise in compression of the margin; the direction of the greatest principal stress is N120°E on average.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3121.1994.tb00493.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Production of fungal protein from cellulose and waste cellulosics (1972)
    s.l. : American Chemical Society
    Environmental science & technology 6 (1972), S. 715-719 
    Details
    ISSN: 1520-5851
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/es60067a008
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Lithospheric thermal structure in the Baltic shield (1991)
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 106 (1991), S. 0 
    Details
    ISSN: 1365-246X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Steady-state heat conduction modelling was carried out to calculate the crustal temperature field and thermal lithosphere thickness in the Baltic shield. The radiogenic sources at the surface were fixed depending on the age of the crust. Below the uppermost 10 kilometres, a relationship between heat generation and P-wave velocity was applied and seismic structure was used to define individual crustal blocks of specific thermal parameters. Small-scale surface heat-flow density anomalies are interpreted as lateral variations of heat generation within the upper part of the crust, whereas the large anomaly in the southern part of the shield is attributed to an anomalously high mantle heat-flow density. The results are shown on maps outlining mantle heat-flow density, Moho temperature and thermal lithosphere thickness. A relationship between subcrustal temperature and Moho depth was found, except for southern Sweden. The lithospheric thickness is found to exceed 200 km in the Bothnian Gulf–northern-central Finland and part of the Kola peninsula, where temperatures at the Moho are less than 500 °C; the temperature gradient at the top of the mantle has, on the average, a value of 7.5 mK m−1 and the mantle heat-flow density varies from 19 to 25 mW m−2. Towards the south, the lithospheric thickness decreases until it attains a value lower than 100 km under southern Sweden. In this latter area, the Moho temperature and mantle heat-flow density are remarkably high, 700°–900°C and 30–45 mW m−2, respectively, as well as the temperature gradient, which amounts to 10 mK m−1.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-246X.1991.tb06333.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Solar global radiation and climate at Genova, Italy (1981)
    Springer
    Meteorology and atmospheric physics 29 (1981), S. 129-135 
    Details
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Es wurde die Globalstrahlung in GeU und GeMCap analysiert, womit es im Zusammenhang mit den thermo-pluviometrischen Angaben ermöglicht wurde, die klimatischen Charakteristiken eines am Meere gelegten Ortes (GeU) und eines auf den Appenninen gelegenen Ortes (GeMCap) zu beschreiben. Auf GeMCap weisen diese klimatischen Faktoren im Winter-Herbst einen kontinental-maritimen Charakter und im Frühling-Sommer einen streng kontinentalen Charakter auf.
    Notes: Summary It has been analysed the global solar radiation at GeU and GeMCap, that in connection with the thermo-pluviometric data has also allowed to outline the climatic characteristics of a coastal site (GeU) and of a site on Apennin ridge (GeMCap). At GeMCap these climatic parameters show a continental-maritime behaviour in winter-autumn and strictly continental feature in the remaining half year.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02278196
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Wind energy conversion over Ligurian Apennines (1983)
    Springer
    Meteorology and atmospheric physics 32 (1983), S. 253-261 
    Details
    ISSN: 1436-5065
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Description / Table of Contents: Zusammenfassung Anhand der in 20 Jahren durchgeführten Untersuchungen über die auf dem Berg Capellino (Genoa, Italien) gesammelten Winddaten wird eine eingehende Analyse durchgeführt, aus der sich ergeben hat, daß die Windenergie eine aussichtsreiche Form von alternativer natürlicher Energie in diesem Gebiet des Ligurischen Appennins darstellt. Die Energieproduktion eines echten Aerogenerators wurde über die Zeit integriert, um die Energieerzeugung für jede vom Flügel überstrichene Flächeneinheit für ein Jahr bzw. für einen Monat zu bestimmen. Unter der realistischen Annahme, daß die Leistung eineridealen Maschine 0.4 kWh/m2 beträgt, ergibt sich eine Jahresproduktion der Leistungsdichte von 645 kWh/m2 in 30 m Höhe über dem Boden. Es wurde berechnet, daß fünf durch Wind angetriebene mittelgroße Generatoren mit einem Flügel von 20 m Durchmesser etwa 1 GWh im Jahr erzeugen können.
    Notes: Summary A detailed analysis of wind energy availability at Mount Capellino (Genoa, Italy), based on wind data for a twenty year period, shows that wind energy is a promising renewable natural energy source in this part of the Ligurian Apennines. The instantaneous power output of a real aerogenerator has been integrated over the time to determine the energy output per unit area swept by the rotor over a year and a month respectively. Using a realistic capacity of 0.4 kW/m2 for theideal machine, the annual power density output is 645 kWh/m2 at 30 m above ground level. It is estimated that five medium size wind-powered generators of 20 m in rotor diameter can produce approximately 1 GWh per year.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02273977
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    A new general frequency-magnitude relationship (1980)
    Springer
    Pure and applied geophysics 119 (1980), S. 196-206 
    Details
    ISSN: 1420-9136
    Keywords: Earthquake statistics ; Frequency-magnitude relationship ; Western Alps
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract A new frequency-magnitude relationship which takes into account the existence of an upper limit for the magnitude, and generalizes the previous ones, is proposed. The formula obtained has been applied to the Western Alps area activity during the period 1950–75, and in addition to the limiting magnitude value, some useful results for the calculation of the seismic risk have been deduced using Gumbel's theory. The use of the present relationship appears to be necessary when long periods of time are considered, while for the study of the annual probabilities the Gutenberg and Richter formula is shown to be sufficiently accurate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00878730
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    Paper (German National Licenses)
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