Annotated record of the detailed examination of Mn deposits from DSDP Leg 39 (Holes 354, 355, 356, 358, 359)

• Main Authors: Perch-Nielsen, Katharina, Supko, Peter R, Boersma, Anne, Bonatti, Enrico, Carlson, Richard L, McCoy, Floyd W, Neprochnov, Yuri P, Zimmerman, H B
• Format: Dataset
• Language: English
• Published: PANGAEA 1977
• Subjects: 39-354; 39-355; 39-356; 39-358; 39-359; Comment; Deep Sea Drilling Project; Deposit type; DEPTH; sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; File name; Glomar Challenger; Identification; Leg39; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/CONT RISE; Position; Quantity of deposit; Sample code/label; Sediment type; South Atlantic/BASIN; South Atlantic/PLATEAU; South Atlantic/SEAMOUNT; Substrate type; Uniform resource locator/link to image; Visual description; North Atlantic; South Atlantic Ocean
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.871020; https://doi.org/10.1594/PANGAEA.871020

Unlike most previous Deep Sea Drilling Project cruises, Leg 39 was not scientifically planned as a "theme" cruise, on which a number of sites are drilled to address a single scientific problem area, namely, to improve our knowledge of paleocirculation changes and the overall geologic history of the South Atlantic Ocean. This would be done along more specific objectives: 1) collect a biostratigraphic section on the Ceará Rise (Site 354), determine the nature and age of a prominent reflector there, and determine the nature and age of basement; 2) date basement between magnetic anomalies 32 and 33 in the Argentine Basin (Site 358), and 33 and 34 in the Brazil Basin (Site 355); obtain as complete sedimentary sections as time would permit at the Ceará Rise, Brazil Basin, the Argentine Basin and Sào Paulo Plateau (Site 356).