User talk:68.203.197.21

February 2009
Welcome to Wikipedia. The recent edit you made to the page Cementation (geology) has been reverted, as it appears to be unconstructive. Use the sandbox for testing; if you believe the edit was constructive, please ensure that you provide an informative edit summary. You may also wish to read the introduction to editing. Thank you. Geoff TC 02:23, 18 February 2009 (UTC)