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- Weaubleau_structure abstract "The Weaubleau structure is a probable meteorite impact site in western Missouri near the towns of Gerster, Iconium, Osceola, and Vista. It is believed to have been caused by a 1200-ft (366 m) meteoroid between 330 and 335 million years ago during the late Mississippian Period (Latest Osagean to Earliest Meramecian).It is listed by the Impact Field Studies Group as a "probable" impact structure.The structure consists of an area of severe structural deformity and extensive brecciation that was poorly understood and had been thought to be the result of either thrusting over a dome or a cryptoexplosive event. A 19-km-diameter (12 mi) circular structure was discovered by geologist Kevin R. Evans through examination of digital elevation data. The structure was originally called the Weaubleau-Osceola structure after Weaubleau Creek and Osceola. It is now known as the Weaubleau structure.Because the site was covered by later Pennsylvanian Period sediments, and only partially exposed to erosion relatively recently, its structure is well preserved, and its age can be determined with fair accuracy. It is one of a series of known or suspected impact sites along the 38th parallel in the states of Illinois, Missouri, and Kansas. These 38th parallel structures are thought to possibly be the result of a serial impact, similar to that of comet Shoemaker-Levy 9 on Jupiter, an extremely unlikely event on Earth. The argument for a serial strike would be greatly strengthened if the ages of the other 38th parallel structures could be constrained to the same period as the Weaubleau structure.The Weaubleau structure is one of the fifty largest known impact craters on earth and the fourth largest in the United States. The three larger ones in the US either have been glaciated and buried (Manson crater), are under water (Chesapeake Bay crater), or have been subjected to orogeny (Beaverhead crater). Therefore the Weaubleau structure is the largest exposed untectonized impact crater in the US.".
- Weaubleau_structure thumbnail Weaubleau_Structure_shaded_relief.jpg?width=300.
- Weaubleau_structure wikiPageExternalLink abstract_76553.htm.
- Weaubleau_structure wikiPageExternalLink 4111.pdf.
- Weaubleau_structure wikiPageExternalLink MeteoritesExplained.html.
- Weaubleau_structure wikiPageID "1217254".
- Weaubleau_structure wikiPageRevisionID "603758201".
- Weaubleau_structure hasPhotoCollection Weaubleau_structure.
- Weaubleau_structure subject Category:Carboniferous_impact_craters.
- Weaubleau_structure subject Category:Geography_of_St._Clair_County,_Missouri.
- Weaubleau_structure subject Category:Geology_of_Missouri.
- Weaubleau_structure subject Category:Impact_craters_of_the_United_States.
- Weaubleau_structure subject Category:Possible_impact_craters_on_Earth.
- Weaubleau_structure point "37.983333333333334 -93.63333333333334".
- Weaubleau_structure type SpatialThing.
- Weaubleau_structure comment "The Weaubleau structure is a probable meteorite impact site in western Missouri near the towns of Gerster, Iconium, Osceola, and Vista.".
- Weaubleau_structure label "Weaubleau structure".
- Weaubleau_structure sameAs m.04j5cf.
- Weaubleau_structure sameAs Q7978333.
- Weaubleau_structure sameAs Q7978333.
- Weaubleau_structure lat "37.983333333333334".
- Weaubleau_structure long "-93.63333333333334".
- Weaubleau_structure wasDerivedFrom Weaubleau_structure?oldid=603758201.
- Weaubleau_structure depiction Weaubleau_Structure_shaded_relief.jpg.
- Weaubleau_structure isPrimaryTopicOf Weaubleau_structure.