Annotated record of the detailed examination of Mn deposits from DSDP Leg 49 (Holes 407, 408, 410, 412, 412A)

• Main Authors: Luyendyk, Bruce P, Cann, Joe R, Sharman, G, Roberts, W P, Shor, A N, Duffield, W A, Varet, J, Zolotarev, Boris P, Poore, Richard Z, Steinmetz, J C, Kobayashi, Kazuo, Vennum, W, Wood, D A, Steiner, M
• Format: Dataset
• Language: English
• Published: PANGAEA 1979
• Subjects: 49-407; 49-408; 49-410; 49-412; 49-412A; Comment; Deep Sea Drilling Project; Deposit type; DEPTH; sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; Event label; File name; Glomar Challenger; Identification; Leg49; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; North Atlantic/FRACTURE ZONE; North Atlantic/RIDGE; Position; Quantity of deposit; Sample code/label; Sediment type; Substrate type; Uniform resource locator/link to image; Visual description; Iceland; North Atlantic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.872401; https://doi.org/10.1594/PANGAEA.872401

Leg 49 of the International Phase of Ocean Drilling (IPOD) was designed with a wide spectrum of problems in mind. Topics investigated were (1) variation with time of mantle sources of spreading-center magmas, (2) aging of the volcanic layer, (3) degree of hydrothermal alteration and metamorphism of the volcanic layer, (4) lateral and vertical variation of the petrochemistry, magnetic properties, and structure of the volcanic layer, (5) north-south variability of spreading-center magmas through the North Atlantic, (6) initiation of glaciation during the late Pliocene, and (7) the influence of bottom currents originating at the Iceland-Faeroes Ridge on sediments of the ridge flank province of the western North Atlantic.