Bow City crater explained

Bow City crater
Location:	Western Canadian Sedimentary Basin
Map:	Canada#Alberta
Coordinates:	50.4333°N -136°W
Confidence:	Potential
Diameter:	~8km (05miles)
Age:	~73 Ma Late Cretaceous
Exposed:	No
Country:	Canada
Province:	Alberta
Municipality:	Bow City, Alberta

The Bow City crater is a potential^[1] meteorite impact crater located in southern Alberta, Canada.^{[2] [3] [4] [5]}

The 8adj=midNaNadj=mid crater was discovered in 2012 by Wei Xie of the University of Alberta. The crater is estimated to have formed approximately 70 million years ago.The crater is not directly visible from the surface, as it is buried under approximately a kilometre of overburden. Petrochemical seismic studies provided the first clues to the existence of the crater.

References

Bibliography

External links

• Aerial documentation of the Bow City impact crater

Notes and References

1. Mikheeva, 2017
2. News: New Buried Asteroid Impact Crater Discovered in Canada . . Nadia Drake . Nadia Drake . 2012-12-04 . 2013-02-12 . https://web.archive.org/web/20130212011421/http://www.wired.com/wiredscience/2012/12/buried-bow-city-impact-crater . dead . "I was really surprised," said Wei Xie, a graduate student in geophysics at the University of Alberta, who presented the find on Dec. 3 at the American Geophysical Union conference. "Only a handful of these buried craters are known," she said..
3. News: Ancient asteroid impact crater discovered near Alberta ghost town . . Scott Sutherland . 2012-12-04 . 2012-12-08 . https://web.archive.org/web/20121208040141/http://ca.news.yahoo.com/blogs/geekquinox/ancient-asteroid-impact-crater-discovered-near-alberta-ghost-205357267.html . dead . The seismic map of the crater shows the structure of it quite well, with its low-lying interior and characteristic central peak. The team also noted some potentially unique features of the crater, which indicate that some of the sediments were pushed directly outward from the impact, rather than being blown upwards..
4. News: Grad student finds new asteroid crater in southern Alberta . . Rosemary Westwood . 2012-12-06 . The crater has long been covered over and is estimated to be about 70 million years old. It took an analysis of data from boreholes drilled in the area and seismic wave surveys to show the giant crater below the surface. Xie and her colleagues will continue to search for definite proof.".
5. Paul GLOMBICK, Douglas R. SCHMITT, Wei XIE, Todd BOWN, Ben HATHWAY, and Christopher BANKS (2014). The Bow City structure, southern Alberta, Canada: The deep roots of a complex impact structure?, Meteoritics & Planetary Science, p. 1–24