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Ejecta Geology

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The Mjølnir Impact Event and its Consequences

Part of the book series: Impact Studies ((IMPACTSTUD))

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Abstract

Ejecta recognition is an important factor in impact research and has been a key element in the Mjølnir impact studies. The characterization of ejecta covers several different geological and geophysical topics as summarized in French (1998) and Montanari and Koeberl (2000). In particular in studies of marine impact events (submarine craters) or in cases where the impact site has not been recognized, ejecta recognition is crucial. This is well exemplified in the K/T investigations and the Chicxulub impact structure (Alvarez et al. 1995; Smit 1999), in the investigations of the North American tektite (melt particles formed by impact, partly melt of target material, immediately before crater formation) strewn fields and the Chesapeake Bay crater (Koeberl 1989; Poag et al. 2004) as well as in the investigations of the Precambrian spherule beds of Australia and South Africa, where still no impact sites have been recognized (Simonson et al. 1998).

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Author information

Authors and Affiliations

  1. Department of Geosciences, University of Oslo, NO-0316, Oslo, Norway

    Henning Dypvik & Filippos Tsikalas

  2. Geological Survey of Norway, NO-7491, Trondheim, Norway

    Morten Smelror

  3. SINTEF Petroleum Research, Trondheim, Norway

    Atle Mørk

  4. Department of Geology and Mineral Resources Engineering, NTNU, NO-7491, Trondheim, Norway

    Atle Mørk

  5. Eni Norge AS, NO-4064, Stavanger, Norway

    Filippos Tsikalas

Authors
  1. Henning Dypvik
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  2. Morten Smelror
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  3. Atle Mørk
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  4. Filippos Tsikalas
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Corresponding author

Correspondence to Henning Dypvik .

Editor information

Editors and Affiliations

  1. Dept. Geology, University of Oslo, Oslo, Norway

    Filippos Tsikalas

  2. Dept. Geology, University of Oslo, Oslo, Norway

    Henning Dypvik

  3. (NGU), Geological Survey Norway, Trondheim, Norway

    Morten Smelror

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Dypvik, H., Smelror, M., Mørk, A., Tsikalas, F. (2010). Ejecta Geology. In: Tsikalas, F., Dypvik, H., Smelror, M. (eds) The Mjølnir Impact Event and its Consequences. Impact Studies. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-88260-2_6

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