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NOBEL [Near Ocean Bottom Explosives Launcher] on the fantail of the R/V Atlantis II at the East Pacific Rise in 1996.

Ring of fire

Research specialist Don Koelsch makes final electronic checks on the Near Ocean Bottom Explosives Launcher (NOBEL) on the fantail of the R/V Atlantis II  in 1996. Developed at WHOI, NOBEL was the first and only equipment system to successfully deploy and detonate multiple high-explosive charges (48 in all) at full ocean depths. During experiments along the East Pacific Rise, the energy generated by the near-bottom explosions was received by an array of seismometers, allowing geologists to make high-resolution observations of Earth's crustal structure. (Photo by James Broda, Woods Hole Oceanographic Institution)


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