Файл:Carswell Crater - Landsat TM 42 structure.jpgLandsat image with crater structure overlain. The central zone is the highly faulted central peak complex including the Peter River gneiss and the Earl River complex. The outer ring is a zone of faulted bedrock including the Carswell Formation and Douglas Formation. Unshaded areas are generally mapped as the William River Subgroup.[2]
The central peak complex of faulted metamorphic rocks displays shatter cones, planar deformation features, pseudotachylyte veins, and impact melts and breccias. There is also evidence of planar deformation features in quartz grains far to the south of the outer ring of present-day hills, which suggests the ring of hills are not the rim of the crater but a peak ring within a much larger crater. The Carswell Formation, composed of algal limestone, may have formed on seamounts elevated to near the surface as part of the peak ring.[2]
The Carswell Crater can be reached by Saskatchewan Highway 955. The Шаблон:Convert gravel road begins in the village of La Loche and ends at the old Cluff Lake mine site within the crater. The Cluff Lake uranium mine produced over 62 million pounds of yellowcake during its 22-year operating life.[3] Since the mine is now closed and decommissioned, there are no travel services in the vicinity and no functional airstrip. Motorists driving to the crater need to carry sufficient fuel and supplies for the round trip back to La Loche.
↑ 2,02,1Genest, S., Robert, F., and Duhamel, I., 2010, The Carswell impact event, Saskatchewan, Canada: Evidence for a pre-Athabasca multiring basin?, in Gibson, R.L., and Reimold, W.U., eds., Large Meteorite Impacts and Planetary Evolution IV: Geological Society of America Special Paper 465, p. 543–570, doi:10.1130/2010.2465(26).
