Annotated record of the detailed examination of Mn deposits from DSDP Site, Leg 4 (Cores 4-27-1 and 4-27A-1)

The northern margin of the Demerara Abyssal Plain is bordered by a low ESE-WNW trending rise known as the Barracuda Ridge. North of South America, the eastern margin of the Demerara Abyssal Plain is formed by the Barbados Ridge. An extensive sedimentary section of the Barbados Ridge is exposed on th...

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Bibliographic Details
Main Authors: Bader, Richard G, Gerard, Robert D, Benson, William E, Bolli, Hans M, Hay, William W, Rothwell, W Thomas, Ruef, Michael R, Riedel, William R, Sayles, Frederick L
Format: Dataset
Language:English
Published: PANGAEA 1970
Subjects:
4-27
4-27A
Comment
Date/Time of event
Deep Sea Drilling Project
Deposit type
DEPTH
sediment/rock
Description
DRILL
Drilling/drill rig
DSDP
Elevation of event
Event label
Glomar Challenger
Latitude of event
Leg4
Longitude of event
NOAA and MMS Marine Minerals Geochemical Database
NOAA-MMS
North Atlantic/RIDGE
Position
Quantity of deposit
Sample code/label
Sample ID
Sediment type
North Atlantic
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.865345
https://doi.org/10.1594/PANGAEA.865345
Description
Summary:The northern margin of the Demerara Abyssal Plain is bordered by a low ESE-WNW trending rise known as the Barracuda Ridge. North of South America, the eastern margin of the Demerara Abyssal Plain is formed by the Barbados Ridge. An extensive sedimentary section of the Barbados Ridge is exposed on the island of Barbados and consists of a series of radiolarian to planktonic foraminiferal and calcareous nannofossil biogenic sediments interlayered with ash beds. To determine the nature of the sediments and "basement," Site 27 was selected on the northern margin of the Demerara Abyssal Plain, south of the Barracuda Ridge.

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