Search Results - "Jansa, L F"
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Sedimentary signatures and processes during marine bolide impacts: a review
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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Latest marine horizon north of Qomolangma (Mt Everest): implications for closure of Tethys seaway and collision tectonics
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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Identification of an underwater extraterrestrial impact crater
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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Origin and tectonic significance of the Early Cretaceous Fogo Seamounts
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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Grand Banks and J-Anomaly Ridge: A Geological Comparison
Published in Science (American Association for the Advancement of Science) (09-09-1977)“…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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The late early Eocene Montagnais Bolide; no impact on biotic diversity
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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El margen Atlantico Ibérìco al w de Galìcìa. Evolución en regìmen extensional y sedimentación
Published in Estudios geológicos (Madrid) (30-06-1986)“…La campaña oceanográfica 103 del Ocean Drilling Program (ODP) ha estado dedicada a dilucidar la evolución tectónica y sedimentación del Margen…”
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Devonian Occurrence of Uraloporella (?Foraminifer) in the Canning Basin, Western Australia
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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Exotic pebble in La Salle limestone (upper Pennsylvanian), La Salle, Illinois
Published in Journal of sedimentary research (01-06-1970)Get full text
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Ocean Drilling Program: Evolution of a passive margin
Published in Nature (London) (12-09-1985)Get full text
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