IODP Expedition 346 Scientific Prospectus Addendum

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PDF file

See Expedition 346 Scientific Prospectus (January 2013)

doi:10.2204/iodp.sp.346add.2013

Introduction

Following review of the proposed drill sites for Expedition 346 during the 14th meeting of the Integrated Ocean Drilling Program (IODP) Environmental Protection and Safety Panel (EPSP) (8–9 April 2013), several adjustments to site locations and penetration depths were recommended and approved by the EPSP. A summary of these changes is as follows:

Penetration depths of proposed Sites YB-1, YB-2, YB-3, Y-1, JB-1, JB-3, UB-1, and ECS-1B were extended by 50 m to ensure recovery of the targeted age sections.
Alternate proposed Site ECS-1A was not approved. EPSP recommended moving this alternate site to a new location, in particular at the crossing point of seismic KY07-04 Lines 1 and 7.
Proponents provided a new alternate proposed site, Site ECS-1C, at the location recommended by EPSP.
Alternate proposed Site ECS-1C was approved by EPSP as proposed.

The present addendum provides new site summary sheets for alternate proposed Site ECS-1C, including location and seismic figures, and a revised operations strategy. All other details contained within the Expedition 346 Scientific Prospectus published by IODP-Management International in January 2013 remain the same (Tada et al., 2013).

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