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Recommended reading

Meteorite Craters by Kathleen Mark. University of Arizona Press, Tucson

Meteorite Impact!:The Danger from Space and South Africa’s Mega Impact by Wolf Uwe Reimold and Roger L. Gibson. Available from Amazon Books.

For additional photographs and general information:-

http://en.wikipedia.org/16_psyche (Metallic asteroid)

http://en.wikipedia.org/Great Dyke (For good photo)






Rev 20180907 Copyright (c) 2018 dave (at) howcroft.co.za