Deaccessed Cores

The following cores have been placed on a deaccession list from the NSF-ICF inventory. Most of the cores are no longer continuous, and the top and bottom depths shown below are from the original drill logs and not necessarily a reflection of what currently remains in the archive. A funded proposal, and Sample Allocation Committee approval, is not needed to access cores on the deaccession list.

The deaccessed cores typically have poor dating and limited data available. Some of the cores were drilled a long time ago, and some cores do not have good core quality. However, the deaccessed cores can be fantastic for method development. Contact the Science Management Office (nsf.icf.smo at to determine the best core for your research needs.