Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/8039
DC Field | Value | Language |
---|---|---|
dc.contributor.authorall | Gasperini, L.; CNR-Ismar Bologna | en |
dc.contributor.authorall | Cocchi, L.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.authorall | Stanghellini, C.; INAF-Bologna | en |
dc.contributor.authorall | Stanghellini, G.; CNR-Ismar Bologna | en |
dc.contributor.authorall | Del Bianco, F.; CNR-Ismar Bologna | en |
dc.contributor.authorall | Serrazanetti, M.; CNR-Ismar Bologna | en |
dc.contributor.authorall | Carmisciano, C.; Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.date.accessioned | 2012-09-10T12:37:38Z | en |
dc.date.available | 2012-09-10T12:37:38Z | en |
dc.date.issued | 2012-05-12 | en |
dc.identifier.uri | http://hdl.handle.net/2122/8039 | en |
dc.description.abstract | A major explosion occurred on 30 June 1908 in the Tunguska region of Siberia, causing the destruction of over 2,000 square km of taiga; pressure and seismic waves detected as far as 1,000 km away; bright luminescence in the night skies of Northern Europe and Central Asia; and other unusual phenomena. This “Tunguska Event” is probably related to the impact with the Earth of a cosmic body that exploded about 5-10 km above ground, releasing in the atmosphere 10-15 Mton of energy. Fragments of the impacting body have never been found, and its nature (comet or asteroid) is still a matter of debate. We report here results from a magnetic and seismic-reflection study of a small (~500 m diameter) lake, Lake Cheko, located about 8 km NW of the inferred explosion epicenter, that was proposed to be an impact crater left by a fragment of the Tunguska Cosmic Body. Seismic-reflection and magnetic data revealed a P-wave velocity/magnetic anomaly close to the lake center, about 10 m below the lake floor; this anomaly is compatible with the presence of a buried stony object and supports the impact crater origin for Lake Cheko. | en |
dc.language.iso | English | en |
dc.publisher.name | American Geophysical Union | en |
dc.relation.ispartof | Geochemistry Geophysics Geosystem | en |
dc.relation.ispartofseries | 5/13 (2012) | en |
dc.subject | Tunguska | en |
dc.subject | Lake Cheko | en |
dc.subject | Central Siberia | en |
dc.subject | Impact cratering | en |
dc.subject | magnetometry | en |
dc.subject | seismic reflection | en |
dc.title | Magnetic and seismic reflection study of Lake Cheko, a possible impact crater for the 1908 Tunguska Event | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.type.QualityControl | Peer-reviewed | en |
dc.description.pagenumber | Q05008 | en |
dc.subject.INGV | 04. Solid Earth::04.02. Exploration geophysics::04.02.06. Seismic methods | en |
dc.subject.INGV | 04. Solid Earth::04.04. Geology::04.04.04. Marine geology | en |
dc.subject.INGV | 04. Solid Earth::04.05. Geomagnetism::04.05.04. Magnetic anomalies | en |
dc.identifier.doi | 10.1029/2012GC004054 | en |
dc.description.obiettivoSpecifico | 3.4. Geomagnetismo | en |
dc.description.journalType | JCR Journal | en |
dc.description.fulltext | restricted | en |
dc.relation.issn | 1525-2027 | en |
dc.relation.eissn | 1525-2027 | en |
dc.contributor.author | Gasperini, L. | en |
dc.contributor.author | Cocchi, L. | en |
dc.contributor.author | Stanghellini, C. | en |
dc.contributor.author | Stanghellini, G. | en |
dc.contributor.author | Del Bianco, F. | en |
dc.contributor.author | Serrazanetti, M. | en |
dc.contributor.author | Carmisciano, C. | en |
dc.contributor.department | CNR-Ismar Bologna | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | en |
dc.contributor.department | INAF-Bologna | en |
dc.contributor.department | CNR-Ismar Bologna | en |
dc.contributor.department | CNR-Ismar Bologna | en |
dc.contributor.department | CNR-Ismar Bologna | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Roma2, Roma, Italia | 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 | ISMAR-CNR - Istituto di Scienze Marine-CNR, Bologna, Italy | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.dept | INAF-Bologna | - |
crisitem.author.dept | Institute of Marine Science CNR ISMAR-BO | - |
crisitem.author.dept | CNR-Ismar Bologna | - |
crisitem.author.dept | CNR-Ismar Bologna | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | - |
crisitem.author.orcid | 0000-0003-2133-4379 | - |
crisitem.author.orcid | 0000-0001-7835-1116 | - |
crisitem.author.orcid | 0000-0001-7357-2147 | - |
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 | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
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Gasperini_etal.,2012.pdf | 5.85 MB | Adobe PDF |
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