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  • 1
    Electronic Resource
    Electronic Resource
    Late Eocene rings around the Earth? (reply) (1980)
    [s.l.] : Nature Publishing Group
    Nature 288 (1980), S. 104-104 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] O'KEEFE REPLIES-The present issue is whether tektites are cosmic or terrestrial in origin. The main point1*2 is that the terrestrial hypothesis is found to conflict with the laws of physics, and these arguments have not been answered. Two examples are given below. First, tektites are good ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/288104a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Origin of Tektites (1958)
    [s.l.] : Nature Publishing Group
    Nature 181 (1958), S. 172-173 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] HH. NININGER1 has proposed that tektites. be regarded as the ejecta from lunar craters produced by meteorite impact. He points to the work of L. J. Spencer2*3 comparing the tektites with glassy matter from terrestrial meteorite craters. The wide distribution of tektites of a single type, such ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/181172a0
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  • 3
    Electronic Resource
    Electronic Resource
    The terminal Eocene event: formation of a ring system around the Earth? (1980)
    [s.l.] : Nature Publishing Group
    Nature 285 (1980), S. 309-311 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Wolfe, reviewing the botanical data, found a sudden change in the relative abundance of forest plants at the end of the Eocene, at about - 34Myr which, he suggests, implies a decrease of the winter temperature by 20C, with little or no corresponding change of summer temperature. Wolfe attributes ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/285309a0
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