Search Results - "Jansa, L F"

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  1. 1

    Sedimentary signatures and processes during marine bolide impacts: a review by Dypvik, Henning, Jansa, Lubomir F.

    Published in Sedimentary geology (01-10-2003)
    “…Studies of submarine impact craters resulting from impacts of comets or asteroids demonstrate that the presence of water and the physical properties of target…”
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    Journal Article
  2. 2

    Latest marine horizon north of Qomolangma (Mt Everest): implications for closure of Tethys seaway and collision tectonics by Wang, Chengshan, Li, Xianghui, Hu, Xiumian, Jansa, L. F.

    Published in Terra nova (Oxford, England) (01-04-2002)
    “…The newly discovered marine horizon at Zhepure Syncline, north of Qomolangma, revises timing of the closure of the eastern Neo‐Tethys seaway in the central…”
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  3. 3

    Identification of an underwater extraterrestrial impact crater by Jansa, Lubomir F, Pe-Piper, Georgia

    Published in Nature (London) (18-06-1987)
    “…When large meteorites strike the Earth's surface they form impact craters. The identification of an underwater extraterrestrial impact crater is discussed…”
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  4. 4

    Origin and tectonic significance of the Early Cretaceous Fogo Seamounts by Piper, DJW, Pe-Piper, G, Jansa, L F

    Published in Atlantic geology (01-03-2006)
    “…The Lower Cretaceous Fogo Seamounts were formed along the transform margin of the southwestern Grand Banks, at the northeastern extremity of the mid Jurassic -…”
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  5. 5

    Grand Banks and J-Anomaly Ridge: A Geological Comparison by Gradstein, F. M., Grant, A. C., Jansa, L. F.

    “…Geological and geophysical evidence supports the hypothesis that the J-anomaly ridge was a part of the Grand Banks in (late) Early Cretaceous time…”
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  6. 6

    The late early Eocene Montagnais Bolide; no impact on biotic diversity by Aubry, Marie-Pierre, Gradstein, Felix M, Jansa, Lubomir F

    Published in Micropaleontology (1990)
    “…The suggestion that mass extinctions may have been triggered by extraterrestrial events has raised a significant controversy which may not be resolved until it…”
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    Devonian Occurrence of Uraloporella (?Foraminifer) in the Canning Basin, Western Australia by Riding, Robert, Jansa, L. F.

    Published in Journal of paleontology (01-09-1976)
    “…Uraloporella variabilis Korde 1950 is present in limestones of the Pillara Formation (Givetian to Frasnian) of the Lennard Shelf, northern Canning Basin,…”
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