Scientific objectives

The primary specific objective of IODP Expedition 326 was to establish the wellhead and 20 inch casing for later scientific riser drilling at this site. Preexpedition plans called for setting the 20 inch casing to ~800 mbsf or deeper. Because the main scientific objectives (see previous section) for Site C0002 all lie deeper than this and the uppermost 800 mbsf had already been comprehensively logged during Expedition 314 and mostly cored during Expedition 315, it was decided that no scientific measurements, coring, logging, or other data sets would be attempted during the limited time available for Expedition 326. Therefore, this expedition was purely operations focused, and all operations were carried out to support future deeper drilling, logging, and coring.