IODP

doi:10.2204/iodp.sp.339add.2011

Introduction

Following review of the proposed drill sites during the 12th meeting of the Integrated Ocean Drilling Program (IODP) Environmental Protection and Safety Panel (EPSP) (1–3 June 2011), several adjustments to site locations and penetration depths were recommended and approved by the EPSP. A summary of these changes is as follows:

  • Proposed Sites GC-01A, GC-09A, GC-11A, WI-01B, and SHACK-04A were approved as proposed.

  • Proposed Site GC-2B was approved to a revised depth of 350 meters below seafloor (mbsf).

  • Proposed Site GC-04D was approved at a new location (crossing of seismic Lines S81A-07 and S81A-16).

  • Proposed Site GC-10C was approved as an alternate site at the crossing of seismic Lines CADIZ-21 and S81A-07.

  • Proposed Site GC-05B was not approved. It is substituted by proposed Site GC-11A.

  • Proposed Sites GC-04C (new location on seismic Line S81A-16) and GC-10B (seismic Line CADIZ-21) are retained as potential alternate sites pending approval by the EPSP.

This addendum provides new site summary sheets for the revised sites, including new locations and seismic figures, and a revised operations strategy. All other details contained within the Scientific Prospectus published by IODP Management International in May 2011 remain the same.