Victoria Island structure

Victoria Island structure
Victoria Island structure
	Victoria Island structure
Impact crater/structure
Confidence	probable
Diameter	5.5 kilometers (3.4 mi)
Exposed	No
Drilled	No
Location
Coordinates	37°53′24″N 121°32′06″W / 37.89°N 121.535°W
Country	United States
State	California
District	San Joaquin County

The Victoria Island structure is a 5.5 km (3 mi) bowl-shaped structure buried in the shale sediments of the Sacramento-San Joaquin River Delta, 12 miles (19 km) west of Stockton, California. The circular structure is part of a former sea bed, and lies 1,490–1,600 meters (4,890–4,250 ft) below sea level.^[2]

Discovered during oil exploration and reported at the Lunar and Planetary Science Conference in Houston, Texas, in March 2007, it is thought to be a buried impact crater formed between 37 and 49 million years ago.^[3]^[4]

Victoria Island, which the structure is named for, is in the San Joaquin River Delta at approximately 37°53′24″N 121°32′06″W / 37.890°N 121.535°W / 37.890; -121.535.^[5] The current publications do not list a more precise location for the impact structure than the island.

References

^ Rajmon, D. "Impact Database 2009.2". Impact Field Studies Group. entry for "Victoria Island". Retrieved 2010-03-16.
^ Paul Rincon (2007). 'Crater' spied under California, BBC News
^ Spevack, S. C., Morrow, J. R., Spevack, B. Z. (2007). "3-D seismic and well log analyses of the Victoria Island Structure, a Potential Buried Impact Crater, San Joaquin County, California" (.PDF). Lunar and Planetary Science Conference XXXVIII. Retrieved 2009-09-17.{{cite web}}: CS1 maint: multiple names: authors list (link)
^ Roach, John (2007-03-27). "Giant Meteorite Hit Ancient California, Crater Study Suggests". National Geographic News. National Geographic Society. Archived from the original on April 4, 2007. Retrieved 2009-09-01.
^ "Victoria Island". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.

External links

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[IFSG-1] Rajmon, D. "Impact Database 2009.2". Impact Field Studies Group. entry for "Victoria Island". Retrieved 2010-03-16.

[2] Paul Rincon (2007). 'Crater' spied under California, BBC News

[Spevack2007-3] Spevack, S. C., Morrow, J. R., Spevack, B. Z. (2007). "3-D seismic and well log analyses of the Victoria Island Structure, a Potential Buried Impact Crater, San Joaquin County, California" (.PDF). Lunar and Planetary Science Conference XXXVIII. Retrieved 2009-09-17.{{cite web}}: CS1 maint: multiple names: authors list (link)

[4] Roach, John (2007-03-27). "Giant Meteorite Hit Ancient California, Crater Study Suggests". National Geographic News. National Geographic Society. Archived from the original on April 4, 2007. Retrieved 2009-09-01.

[5] "Victoria Island". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.

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Victoria Island structure

See also

References

External links

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