Page 15: of Marine Technology Magazine (September 2021)
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core liner than in a regular gravity corer ple to the operator.
OSIL system and prevents sediment slump. Piston Corers are one of the most im-
Ocean Scienti? c International Ltd. re-
The piston also reduces internal fric- portant basic tools used in the study of ported that one of its Giant Piston Corer tion within the core liner and prevents marine sediments. OSIL offers custom- systems has broken two records in sci- enti? c ocean drilling & coring on the clumping of the sample. This ensures isable systems (including Launch and that the OSIL Piston Corer systems de- Recovery Systems and Winches) from
International Ocean Discovery Program liver a more well-de? ned sediment sam- 4m to 60m in length.
(IODP) Expedition 386. The expedi- tion has been staged by the European
Consortium for Ocean Research Drill- ing (ECORD) to gain an insight into the seismic history of the study region off the Japanese coast, and is supported by the Japan Agency for Marine-Earth
Science and Technology (Jamstec). In
May 2021 the team on board the RV
Kaimei recorded an historic sampling water depth of 8,023m (26,322ft), and recovered a 37.74m core in a 40m bar- rel string, a 94.3% recovery rate and re- cord deepest sub-sea level sample (from 8060.74 metres below sea level) from the Giant Piston Corer that was pro- duced, installed and supported by OSIL.
The Giant Piston Corer operates in a very similar manner to traditional grav- ity coring systems, with the exception of the piston itself, which plugs the core barrel once the corer has been fully de- ployed into the sediment and, in com- bination with the core catcher, holds the sample more securely inside the “PURPOSE BUILT CABLES FOR
DEMANDING APPLICATIONS”
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ROV Tethers and Umbilicals to Seismic Lead-in’s and
MUX BOP Control cables.
Idyllwild, CA 92549 USA • Ph: (951) 659-2183 • Fax: (951) 659-3958
OSIL [email protected] • http://www.southbaycable.com www.marinetechnologynews.com 15
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