Kelly West crater
{{Short description|Impact crater in Northern Territory, Australia}}
{{Use Australian English|date=May 2024}}
{{Use dmy dates|date=July 2019}}
{{Infobox terrestrial impact site
| name = Kelly West crater
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| map = Northern Territory
| map_alt =
| map_caption = Location of the crater in the Northern Territory
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| coordinates = {{coord|19|56|S|133|57|E|type:landmark_region:AU|display=inline,title}}
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| confidence = Confirmed
| diameter = {{convert|6.6|km|mi|abbr=on}}
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| age = Precambrian
| exposed = No
| drilled = No
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| country = Australia
| state = Northern Territory
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| municipality = Tennant Creek
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Kelly West is a deeply eroded impact crater situated in the central Northern Territory, Australia. It was discovered during Government geological mapping and first reported in 1973, the evidence for impact coming principally from an abundance of shatter cones at the site.{{cite journal | author=Tonkin PC | title=Discovery of shatter cones at Kelly West near Tennant Creek, Northern Territory, Australia | journal=Geological Society of Australia, Journal | volume=20 | issue= 1| year=1973 | pages=99–102 | doi=10.1080/14400957308527900 | bibcode=1973AuJES..20...99T }}
{{cite Earth Impact DB | name = Kelly West | linkname = kelly-west | accessdate = 2009-08-19}}
Description
The surface expression of Kelly West comprises a circular hill of Palaeoproterozoic quartzite about {{convert|2|km|mi|abbr=on}} in diameter, interpreted as a central uplift of a larger complex impact crater.{{cite journal | author=Shoemaker EM, Shoemaker CS | title=The Proterozoic impact record of Australia | journal=AGSO Journal of Australian Geology & Geophysics | volume=16 | issue= 4| year=1996 | pages=379–398 | bibcode=1996JAuGG..16..379S}}
Recent geophysical interpretation suggests an original crater diameter of {{convert|6.6|km|mi|abbr=on}},{{cite journal | author=Plescia JB | title=Kelly West Impact Structure, Australia | journal=Lunar and Planetary Science Conference XXXVII | year=2006 | pages=Abstract #1259 | id=[http://www.lpi.usra.edu/meetings/lpsc2006/pdf/1259.pdf Conference abstract] }}
less than earlier estimates of about {{convert|10|km|mi|abbr=on}}. The age is poorly constrained, but must be older than Middle Cambrian because sedimentary rocks of this age overlie the central uplift and were not deformed by the impact event.
See also
{{Portal|Geology}}
References
{{reflist}}
{{Impact cratering on Earth}}
{{DEFAULTSORT:Kelly West Crater}}
Category:Impact craters of the Northern Territory
Category:Proterozoic impact craters