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Bibliographic Details
Main Authors: Maxwell, Arthur E, von Herzen, Richard P, Andrews, James E, Boyce, Robert E, Milow, E Dean, Hsü, Kenneth J, Percival, Stephen F Jr, Saito, T
Format: Dataset Open Access
Language:en
Published: PANGAEA 1970
Subjects:
3-20; 3-20A; 3-20C; Comment; Date/Time of event; Deep Sea Drilling Project; Deposit type; DEPTH, sediment/rock; Description; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Elevation of event; Event label; Glomar Challenger; Latitude of event; Leg3; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Position; Quantity of deposit; Sample code/label; Sample ID; Sediment type; South Atlantic/VALLEY; Substrate type
Online Access:https://doi.org/10.1594/PANGAEA.865331
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Table of Contents:
  • Prior to arrival on this site, the only survey data available was from the Vema-20 crossing of the area. The recommended site location was over a relatively smooth valley in the bottom topography at about 4750 meters (15,580 feet) depth (uncorrected), about 10 kilometers wide E-W between peaks (or ridges) on either side. Sediment thickness was unknown. The center of the valley is near the peak of a wide (40 to 50 kilometers) positive magnetic anomaly, identified as Magnetic Anomaly 30 in the hypothesized geomagnetic time scale with an age of 72 million years.

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