An Explanation for The Mysterious Cambrian Rings of Wisconsin Sought

An Explanation for The Mysterious Cambrian Rings of Wisconsin Sought

Sourcing the Ring Master: $500 Cash prize for the best natural explanation for curious rings on an
ancient seabed! University of California, Riverside
http://ringmaster.cs.ucr.edu/Rings.html

Knauss, M. J., A. Tyler, and N. C. Hughes, 2014,
Late Cambrian enigmatic ring structures from southwestern Wisconsin, USA. 2014 GSA Annual
Meeting in Vancouver, British Columbia (19–22 October 2014)
https://gsa.confex.com/gsa/2014AM/finalprogram/abstract_243821.htm
http://www.researchgate.net/profile/Mathew_Knauss/publications

Yours,

Paul H.