Middle Paleozoic Impacts

Name	Diameter [kilometres]	Age [Million years]	Geographical location	Coordinates
Woodleigh	~120 km	359 ± 4 Ma	Australia, Western Australia	S26º 03', E114º 40'
Siljan	55 km	368 ± 1 Ma	Sweden, Talland	N61º 02', E14º 52'
Nicholson Lake	12.5 km	<400 Ma	Canada, Northwest Territories	N62º 40', W102º 41'
Slate Islands	30 – 32 km	~450 Ma 436 Ma	Canada, Ontario	N48º 40', W87º 00'

Dressler, B. O. & Sharpton, V. L., 1999: Slate Islands, Lake Superior, Canada: A mid-size, complex impact structure. pp. 109-124
in Dressler, B. O. & Sharpton, V. L., (eds.) 1999: Large meteorite impacts and planetary evolution, II.
–The Geologica Society of America, Boulder, 1999, viii-464
Glikson, A. Y., Mory, A. J., Iasky, R. P., Pirajno, F., Golding, S. D. & Uysal, I. T., 2005: Woodleigh, southern Carnarvon Basin, Western Australia: history of discovery, Late Devonian age, and geophysical and morphometric evidence for a 120 km-diameter impact structure.
–Australian Journal of Earth Sciences: Vol. 52, pp. 545-553 [DOI: 10.1080/08120090500170344]
Grieve, R. A. F., 2006: Impact structures in Canada.
–Geologican Association of Canada, St. John's, 2006, pp. x-210
Hodge, P., 1994: Meteorite craters and impact structures of the Earth.
–Cambridge University Press, London, 1994, pp. 1-124

Mikko's Phylogeny Archive