J. Legrand, A. Echardour, L. Floury, H. Floch, J. Kerducuff, T. Le Moign, G. Loaec, Y. Raer
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引用次数: 5
Abstract
NAD~A is a system developped to complete re-entry operations in deep sea boreholes, drilled for twenty years by the drilling vessels Glomar Challenger and JOIDES Resolution. NADIA is operated by a manned submersible at water depth of up to 6000 m, with a capability of lowering instruments in holes of 1000 m of penetration. This paper describes the system and re-entry operations, with some technical details about specific equipments developped within the project NADIA. The work to be cqmpleted during the upcoming cruise FARE is described. Then, a programme plan of development, following FARE is briefly exposed. The first trials at sea were completed successfully in 2300 m of water in the Mediterranean Sea. Operations in DSDP Hole 396 B will be conducted in July and August 1988.
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