Scientific deep sea drilling vessel Chikyu recently set a new world record by drilling down and obtaining rock samples from deeper than 6,925 feet below the seafloor.
The drilling vessel Chikyu recently
set a new drilling-depth world record, the Japan Agency for Marine-Earth
Science and Technology (JAMSTEC) announced Sept. 6.
During the Deep Coalbed Biosphere
expedition, Chikyu’s crew drilled down to 7,217 feet below the seafloor off the
Shimokita Peninsula of Japan, collecting high-quality rock samples from the
deeply buried coal formation and surpassing the previous scientific
ocean-drilling record of 6,925 feet.
Chikyu is a state-of-the-art scientific
research vessel, capable of drilling as much as 32,808 feet below sea level. It
is designed to reach the deeper part of the Earth, such as the mantle, the
plate boundary seisomogenic zones and the deep biosphere and is part an
international marine research program called the Integrated Ocean Drilling
Program (IODP).
Scientists believe the expedition’s
achievement is only the beginning of new possibilities in exploration.
“We have just opened a window to
the new era of scientific ocean drilling.” said Fumio Inagaki, co-chief
scientist of Expedition 337.
Inagaki said the extended record is
just the beginning for the Chikyu, and he believes future explorations and
discoveries will “extend our systematic understanding of nature, of life and
[of] earth.”
His European colleague, co-chief scientist Kai-Uwe Hinrichs from the University
of Bremen, Germany, expressed his gratitude for witnessing the event.
“Everybody on the ship worked really hard to make this
happen, and I am very pleased about the high quality of the core samples, which
show only minimal drilling disturbance,” Hinrichs said.
Samples collected from the target coal beds have been analyzed in the
laboratory aboard Chikyu, and they will continue to be examined after the
expedition. The research will provide new insights into the deep life
associated with a hydrocarbon system in the deep marine subsurface.
New World Record Set for Scientific Ocean Drilling
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