|Released into public domain|
|I agree to release my text and image contributions, unless otherwise stated, into the public domain. Please be aware that other contributors might not do the same, so if you want to use my contributions under public domain terms, please check the multi-licensing guide.|
Mark A. Wilson
Lewis M. and Marian Senter Nixon Professor of Natural Sciences & Geology
Department of Geology
The College of Wooster
Wooster, OH 44691 USA 
Contributing to Wikipedia since 9 May 2007. A growing compilation of my posted images (all public domain) can be found on my user page at Wikimedia Commons My philosophy of Wikipedia and education is described in this InsideHigherEd.com editorial.