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  • 1
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 125 (1996), S. 0 
    ISSN: 1365-246X
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Geologie und Paläontologie
    Notizen: The Gordon, Cox & O'Hare (1984) method has been used for deriving ‘small-circle’ arcs for a series of independently determined apparent polar-wander paths. the ‘small-circle’ approach is considered physically sensible, but unfortunately still requires excessive subjective ‘assistance’ to select the most plausible Euler poles and Euler colatitudes, particularly when there is little relative motion between the continent and the pole. None the less, polar-wander paths can be divided into prolonged ‘tracks’ separated by brief ‘cusps’. the cusps can be associated with particular tectonic events within the continent or groups of continents. This technique thus has the potential for providing a more geophysically realistic definition of apparent polar-wander paths that can be used to help identify non-Gaussian errors in palaeomagnetic data. In addition, the sharpness of most cusps provides a precise age for the onset or cessation of particular tectonic events. the simultaneous occurrence of such cusps in more than one continent also enables an assessment of the global importance of such events.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Geophysical journal international 127 (1996), S. 0 
    ISSN: 1365-246X
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Geologie und Paläontologie
    Notizen: Spectral analyses of several published magnetic anomaly profiles from Candé & Kent (1992a) were undertaken prior to analysing, in the same way, raw magnetic anomaly data from similar parts of the South Atlantic. It was found that similar and distinct medium and short wavelengths were present in both the published and raw data. When these are converted into the time domain using the average rate of spreading for each profile, these periodicities appear similar, possibly identical, to those expected from the long-term eccentricity orbital parameters (Fischer, DeBoer & Premoli Silva 1990). While such correlations are not necessarily causative, they suggest that magnetohydro-dynamical processes near the core-mantle boundary may be affected by gravitational changes due to planetary orbital perturbations.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 3
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 309 (1984), S. 519-523 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Archaeomagnetic dating on the Minoan ash horizons of the Santorini volcano and on fired destruction levels at late Minoan sites on Crete demonstrates that the basal (Plinian) air-fall ash of the first ‘Minoan’ pumice is contemporaneous with the destruction levels on central Crete, while ...
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 4
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 268 (1977), S. 470-470 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THIS small book is intended to persuade laymen of the importance of geophysical research to Man's present needs, and also of its intrinsic interest. It ranges over a broad canvas, including the origins of the Solar System, oil, gas and metals, the possible relationship between sunspot activity, ...
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 5
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 243 (1973), S. 277-279 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] The necessary physiographic location of deltaic sources deposited during the past 200 million years requires that continental movements be taken into ...
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 6
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 238 (1972), S. 92-93 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Seafloor anomalies from most of the Indian Ocean8 do not show any large movement of Madagascar during the past 75 m.y., but the absence of significant reversals for the period immediately before the Tertiary sequence prevents unique interpretations for earlier times. Green9 has described parallel ...
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 7
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 229 (1971), S. 17-71 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] A reconstruction of Gondwanaland linking India, Australia and Antarctica and fitting these against Africa is compared with some geological and geophysical observations and also with the recent reassembly proposed by Smith and Hallam. The probable history of the disintegration and movement of the ...
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 8
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 267 (1977), S. 472-472 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] THIS book is aimed at the general intellectual, non-specialist reader and is undoubtedly the best bxDok on continental drift which has yet appeared for this type of market, although its numerous anecdotes and overview makes it interesting reading even for the specialist. It was originally published ...
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 9
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 261 (1976), S. 304-305 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] There seems to be a misunderstanding of the fundamental evidence against a northerly derivation of this micro-continent. The argument does not depend on the matching of coastlines, marine incursions and so forth, as such arguments are rarely diagnostic. In this particular case, the presence of ...
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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  • 10
    Digitale Medien
    Digitale Medien
    [s.l.] : Nature Publishing Group
    Nature 253 (1975), S. 705-707 
    ISSN: 1476-4687
    Quelle: Nature Archives 1869 - 2009
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Notizen: [Auszug] Fig. 1 Inclination of remanence after demagnetisation in an alternating field for samples from the Starno core. The rapid change in inclination before 10160 BC reflects the influence of water currents on the depositional remanence; the currents diminish rapidly as a consequence of glacial ...
    Materialart: Digitale Medien
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