The tile was view from 15 degrees below the top surface looking upward into the tile, and numerous very, very, very small tracks could be seen scattered about the tile. Most appeared to be on the order of 100 to 300 µm in length and with the tiles mottled surface, these entry holes will be extremely hard to find when viewed from the top.
| Notes By: | ndc\cpgonzal | Date: | 06/07/2010 |