Successful Completion Of First Riser-drilling Operations In Earthquake Zone
Wednesday, August 19, 2009 - 07:28
in Earth & Climate
The deep-sea drilling vessel CHIKYU, for the first time in the history of scientific ocean drilling, conducted riser-drilling operations to drill successfully down to a depth of 1,603.7 meters beneath the seafloor (at water depth of 2,054 meters). The CHIKYU is drilling deep into the upper portion of the great Nankai Trough earthquake zone to gain insights into geological formations and stress-strain characteristics.