Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/8499
DC Field | Value | Language |
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dc.contributor.authorall | Urbini, S.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.authorall | Nicolosi, I.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.authorall | Zeoli, A.; Museo Nazionale dell’Antartide Universita` di Siena, Via Laterina 8, 53100 Siena, Italy | en |
dc.contributor.authorall | El Khrepy, S.; National Research Institute of Astronomy and Geophysics, Helwan, Egypt | en |
dc.contributor.authorall | Lethy, A.; National Research Institute of Astronomy and Geophysics, Helwan, Egypt | en |
dc.contributor.authorall | Hafez, M.; National Research Institute of Astronomy and Geophysics, Helwan, Egypt | en |
dc.contributor.authorall | El Gabry, M.; National Research Institute of Astronomy and Geophysics, Helwan, Egypt | en |
dc.contributor.authorall | El Barkooky, A.; Department of Geology, Faculty of Sciences, Cairo University, Giza, Egypt | en |
dc.contributor.authorall | Barakat, A.; Egyptian Mineral Resources Authority, 3 Salah Salem Road, Abassiya, Cairo, Egypt | en |
dc.contributor.authorall | Gomaa, M.; Museo Nazionale dell’Antartide Universita` di Siena, Via Laterina 8, 53100 Siena, Italy | en |
dc.contributor.authorall | Radwan, A. M.; Museo Nazionale dell’Antartide Universita` di Siena, Via Laterina 8, 53100 Siena, Italy | en |
dc.contributor.authorall | El Sharkawi, M.; Department of Geology, Faculty of Sciences, Cairo University, Giza, Egypt | en |
dc.contributor.authorall | D’Orazio, M.; Dipartimento di Scienze della Terra, Universita` di Pisa, Via S. Maria 53, 56126 Pisa, Italy | en |
dc.contributor.authorall | Folco, L.; Dipartimento di Scienze della Terra, Universita` di Pisa, Via S. Maria 53, 56126 Pisa, Italy | en |
dc.date.accessioned | 2013-01-29T09:59:30Z | en |
dc.date.available | 2013-01-29T09:59:30Z | en |
dc.date.issued | 2012-12-14 | en |
dc.identifier.uri | http://hdl.handle.net/2122/8499 | en |
dc.description.abstract | We detail the Kamil crater (Egypt) structure and refine the impact scenario, based on the geological and geophysical data collected during our first expedition in February 2010. Kamil Crater is a model for terrestrial small-scale hypervelocity impact craters. It is an exceptionally well-preserved, simple crater with a diameter of 45 m, depth of 10 m, and rayed pattern of bright ejecta. It occurs in a simple geological context: flat, rocky desert surface, and target rocks comprising subhorizontally layered sandstones. The high depth-to-diameter ratio of the transient crater, its concave, yet asymmetric, bottom, and the fact that Kamil Crater is not part of a crater field confirm that it formed by the impact of a single iron mass (or a tight cluster of fragments) that fragmented upon hypervelocity impact with the ground. The circular crater shape and asymmetries in ejecta and shrapnel distributions coherently indicate a direction of incidence from the NW and an impact angle of approximately 30 to 45 . Newly identified asymmetries, including the off-center bottom of the transient crater floor downrange, maximum overturning of target rocks along the impact direction, and lower crater rim elevation downrange, may be diagnostic of oblique impacts in well-preserved craters. Geomagnetic data reveal no buried individual impactor masses >100 kg and suggest that the total mass of the buried shrapnel >100 g is approximately 1050–1700 kg. Based on this mass value plus that of shrapnel >10 g identified earlier on the surface during systematic search, the new estimate of the minimum projectile mass is approximately 5 t. | en |
dc.language.iso | English | en |
dc.publisher.name | Wiley-Blackwell | en |
dc.relation.ispartof | Meteoritics & Planetary Science | en |
dc.relation.ispartofseries | 11 / 47 (2012) | en |
dc.subject | Impact craters | en |
dc.subject | geophysical survey | en |
dc.subject | iron meteorite | en |
dc.subject | impact scenario | en |
dc.title | Geological and geophysical investigation of Kamil crater, Egypt | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | 1842–1868 | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.99. General or miscellaneous | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.07. Instruments and techniques | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.99. General or miscellaneous | en |
dc.identifier.doi | 10.1111/maps.12023 | en |
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New York: Pergamon Press. pp. 489–509. Poelchau M. H., Kenkmann T., and Kring D. A. 2009. Rim uplift and crater shape in Meteor Crater: The effects of target heterogeneities and trajectory obliquity. Journal of Geophysical Research 114:E01006, doi:10.1029/2008JE003235. Polanskey C. A. and Ahrens T. J. 1990. Impact spallation experiments: Fracture patterns and spall velocities. Icarus 87:140–155. | en |
dc.description.obiettivoSpecifico | 3.8. Geofisica per l'ambiente | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | restricted | en |
dc.relation.issn | 1086-9379 | en |
dc.relation.eissn | 1945-5100 | en |
dc.contributor.author | Urbini, S. | en |
dc.contributor.author | Nicolosi, I. | en |
dc.contributor.author | Zeoli, A. | en |
dc.contributor.author | El Khrepy, S. | en |
dc.contributor.author | Lethy, A. | en |
dc.contributor.author | Hafez, M. | en |
dc.contributor.author | El Gabry, M. | en |
dc.contributor.author | El Barkooky, A. | en |
dc.contributor.author | Barakat, A. | en |
dc.contributor.author | Gomaa, M. | en |
dc.contributor.author | Radwan, A. M. | en |
dc.contributor.author | El Sharkawi, M. | en |
dc.contributor.author | D’Orazio, M. | en |
dc.contributor.author | Folco, L. | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.department | Museo Nazionale dell’Antartide Universita` di Siena, Via Laterina 8, 53100 Siena, Italy | en |
dc.contributor.department | National Research Institute of Astronomy and Geophysics, Helwan, Egypt | en |
dc.contributor.department | National Research Institute of Astronomy and Geophysics, Helwan, Egypt | en |
dc.contributor.department | National Research Institute of Astronomy and Geophysics, Helwan, Egypt | en |
dc.contributor.department | National Research Institute of Astronomy and Geophysics, Helwan, Egypt | en |
dc.contributor.department | Department of Geology, Faculty of Sciences, Cairo University, Giza, Egypt | en |
dc.contributor.department | Egyptian Mineral Resources Authority, 3 Salah Salem Road, Abassiya, Cairo, Egypt | en |
dc.contributor.department | Museo Nazionale dell’Antartide Universita` di Siena, Via Laterina 8, 53100 Siena, Italy | en |
dc.contributor.department | Museo Nazionale dell’Antartide Universita` di Siena, Via Laterina 8, 53100 Siena, Italy | en |
dc.contributor.department | Department of Geology, Faculty of Sciences, Cairo University, Giza, Egypt | en |
dc.contributor.department | Dipartimento di Scienze della Terra, Universita` di Pisa, Via S. Maria 53, 56126 Pisa, Italy | en |
dc.contributor.department | Dipartimento di Scienze della Terra, Universita` di Pisa, Via S. Maria 53, 56126 Pisa, Italy | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.dept | Museo Nazionale dell’Antartide Università di Siena, Via Laterina 8, 53100 Siena, Italy | - |
crisitem.author.dept | National Research Institute of Astronomy and Geophysics, Helwan, Egypt | - |
crisitem.author.dept | National Research Institute of Astronomy and Geophysics, Helwan, Egypt | - |
crisitem.author.dept | National Research Institute of Astronomy and Geophysics, Helwan, Egypt | - |
crisitem.author.dept | National Research Institute of Astronomy and Geophysics, Helwan, Egypt | - |
crisitem.author.dept | Department of Geology, Faculty of Sciences, Cairo University, Giza, Egypt | - |
crisitem.author.dept | Egyptian Mineral Resources Authority, 3 Salah Salem Road, Abassiya, Cairo, Egypt | - |
crisitem.author.dept | National Research Centre, Geophysical Sciences Dep., El-Tahrir St. Dokki, 12311, Egypt | - |
crisitem.author.dept | National Research Institute of Astronomy and Geophysics, Helwan, Egypt | - |
crisitem.author.dept | Department of Geology, Faculty of Sciences, Cairo University, Giza, Egypt | - |
crisitem.author.dept | Museo Nazionale dell'Antartide, Università di Siena, via Laterina 8, I-53100 Siena, Italy | - |
crisitem.author.orcid | 0000-0002-8053-4197 | - |
crisitem.author.orcid | 0000-0002-0711-9923 | - |
crisitem.author.orcid | 0000-0002-5230-0115 | - |
crisitem.author.orcid | 0000-0003-1366-3260 | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.author.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.classification.parent | 04. Solid Earth | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
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