Chemical and mineral compositions of hydrothermal sulfide deposits from the Lucky Strike hydrothermal field, Mid-Atlantic Ridge

Several hydrothermal sulfide structures were sampled using the Mir manned submersibles in the relatively shallow Lucky Strike vent field, Mid-Atlantic Ridge. Bathymetric position of these structures varies by approximately 100 m. Investigation of chemical and mineral compositions of hydrothermal ore occurrences led to the conclusion that the initial high-temperature ore-bearing solution ascending toward the surface became unstable and experienced phase separation beneath the ocean floor. The phase separation was responsible for bathymetric control of hydrothermal ore formation within the field.

Observation of manganese deposits in the Blake Plateau, Florida and Caribbean sea areas

Designed by the Westinghouse Corporation in collaboration with Jacques Cousteau, DEEPSTAR-4000 is a deep diving research vehicle based on Captain Cousteau's DIVING SAUCER. An evaluation of DEEPSTAR's operational performance at sea is presented in this report through a description of typical dive procedures and the actual NAVOCEANO dive results.

Annotated record of the detailed examination of Mn deposits from NASKA cruise stations

The cores and dredges described at this site were taken on the NASKA cruise from 21 February until 26 March 1986 by the Muséum National d'Histoire Naturelle from the R/V Marion Dufresne. A total of 25 cores and dredges were recovered and are available at MNHN for sampling and study.

Annotated record of the detailed examination of Mn deposits from DOWNWIND Expedition stations

The cores described in this report were taken on the DOWNWIND Expedition in October 1957 to February 1958 by the Scripps Institution of Oceanography from the R/V Spencer F. Baird and the R/V Horizon. A total of 201 cores and dredges were recovered and are available at Scripps for sampling and study.