deterration

from The Century Dictionary.

• noun The uncovering of anything which is buried or covered with earth; an unearthing.

from the GNU version of the Collaborative International Dictionary of English.

• noun The uncovering of anything buried or covered with earth; a taking out of the earth or ground.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The uncovering of anything buried or covered with earth; an unearthing.