Magnetostratigraphy of DSDP Leg 94 sediments ...

• Main Authors: Clement, Bradford M, Robinson, Frank
• Format: Dataset
• Language: English
• Published: PANGAEA 1987
• Subjects: Event label; Elevation of event; Latitude of event; Longitude of event; Sample code/label; Sample code/label 2; Ageprofile Datum Description; Depth, top/min; Depth, bottom/max; DEPTH, sediment/rock; Age model; Drilling/drill rig; DSDP/ODP/IODP sample designation; Leg94; Glomar Challenger; Deep Sea Drilling Project DSDP; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.788554; https://doi.pangaea.de/10.1594/PANGAEA.788554

The primary objective of DSDP Leg 94 was to obtain continuous paleoclimatic records along a roughly north-south transect in the North Atlantic. The magnetostratigraphy of 21 holes at 6 sites cored with the hydraulic piston corer and extended-core-barrel corer is presented here and establishes an independent chronology for these sediments. Nearly complete records were obtained for the last 2.5 m.y.; in addition, deeper drilling at three sites to satisfy tectonic and paleoceanographic objectives produced older sections suitable for magnetostratigraphic study, allowing first-order correlations of the polarity sequences with calcareous and siliceous micro fossil events.The sections with high sediment accumulation rates yielded very detailed records of polarity history and allowed three short normal-polarity zones within the Matuyama Chronozone to be detected, in addition to the Jaramillo and Olduvai subchronozones. A short reversed-polarity zone also occurs, within the upper intervals of the Gauss Chronozone. ... : Supplement to: Clement, Bradford M; Robinson, Frank (1987): The magnetostratigraphy of Leg 94 sediments. In: Ruddiman, WF; Kidd, RB; Thomas, E; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 94, 635-650 ...