Lawn Hill crater | |
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![]() Landsat image of Lawn Hill crater (circular feature in centre); screen capture from NASA World Wind | |
Impact crater/structure | |
Confidence | Confirmed |
Diameter | 18 km (11 mi) |
Age | Ordovician |
Exposed | Yes |
Drilled | No |
Location | |
Coordinates | 18°40′01″S 138°37′48″E / 18.667°S 138.63°E |
Country | Australia |
State | Queensland |
Lawn Hill ‘crater’ refers to an Ordovician impact structure, the eroded remnant of a former impact crater, situated approximately 220 km north-north-west of Mount Isa in northwestern Queensland, Australia. The site is marked by an 18 km diameter ring of dolomite hills. The origin of this circular feature was uncertain until the discovery of shatter cones and shocked quartz from uplifted rocks at the centre was reported in 1987.[1][2]
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