ODP/IODP 'CORK' Long-Term Subseafloor Hydrogeological Observatories

摘要

Since 1991, 22 reentry holes of the Ocean Drilling Program (ODP) and Integrated Ocean Drilling Program (IODP) have been instrumented with long-term, sealed-hole, subseafloor hydrogeological observatories known as CORKs. This paper briefly reviews the scientific objectives of these installations and the evolution of the CORK designs, from the original single-seal CORK to several more recent models allowing isolation of multiple formation intervals in a single hole.