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 (1970): Annotated record of the detailed examination of Mn deposits from DSDP Site, Leg 4 (Cores 4-27-1 and 4-27A-1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.865345
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
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.
Related to:
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 (1970): Site 27. In: Bader, R.G. et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Print Office), 4, 93-124, https://doi.org/10.2973/dsdp.proc.4.106.1970
Source:
Grant, John Bruce; Moore, Carla J; Alameddin, George; Chen, Kuiying; Barton, Mark (1992): The NOAA and MMS Marine Minerals Geochemical Database. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V52Z13FT
Further details:
Warnken, Robin R; Virden, William T; Moore, Carla J (1992): The NOAA and MMS Marine Minerals Bibliography. National Geophysical Data Center, NOAA, https://doi.org/10.7289/V53X84KN
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: 15.856500 * Longitude: -56.879300
Date/Time Start: 1969-02-23T00:00:00 * Date/Time End: 1969-02-23T00:00:00
Minimum DEPTH, sediment/rock: 25.750 m * Maximum DEPTH, sediment/rock: 86.100 m
Event(s):
4-27 * Latitude: 15.856500 * Longitude: -56.879300 * Date/Time: 1969-02-23T00:00:00 * Elevation: -5251.0 m * Penetration: 475 m * Recovery: 28.3 m * Location: North Atlantic/RIDGE * Campaign: Leg4 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 7 cores; 51 m cored; 0 m drilled; 55.5 % recovery
4-27A * Latitude: 15.856500 * Longitude: -56.879300 * Date/Time: 1969-02-23T00:00:00 * Elevation: -5251.0 m * Penetration: 81 m * Recovery: 31.6 m * Location: North Atlantic/RIDGE * Campaign: Leg4 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 5 cores; 45 m cored; 0 m drilled; 70.2 % recovery
Comment:
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Bader, Richard G | |||
| 2 | Date/Time of event | Date/Time | Bader, Richard G | |||
| 3 | Latitude of event | Latitude | Bader, Richard G | |||
| 4 | Longitude of event | Longitude | Bader, Richard G | |||
| 5 | Elevation of event | Elevation | m | Bader, Richard G | ||
| 6 | Sample ID | Sample ID | Bader, Richard G | |||
| 7 | Sample code/label | Sample label | Bader, Richard G | |||
| 8 | DEPTH, sediment/rock | Depth sed | m | Bader, Richard G | Geocode | |
| 9 | Position | Position | Bader, Richard G | |||
| 10 | Deposit type | Deposit type | Bader, Richard G | |||
| 11 | Quantity of deposit | Quantity | Bader, Richard G | |||
| 12 | Sediment type | Sediment | Bader, Richard G | |||
| 13 | Comment | Comment | Bader, Richard G | |||
| 14 | Description | Description | Bader, Richard G |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
24 data points
Data
| 1 Event | 2 Date/Time | 3 Latitude | 4 Longitude | 5 Elevation [m] | 6 Sample ID | 7 Sample label | 8 Depth sed [m] | 9 Position | 10 Deposit type | 11 Quantity | 12 Sediment | 13 Comment | 14 Description |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4-27 | 1969-02-23 | 15.8565 | -56.8793 | -5251 | 4-27-1-2,60-1 | 4-27-1-2,60 | 86.100 | Buried | Mn nodule | Several | Clay | Grayish-brown clay (10 YR 5/2) with pale blue-green mottling (5 BG 7/2) | Manganese pellets and streaks (Figure 6. Core 1, Hole 27, page 112 ) |
| 4-27A | 1969-02-23 | 15.8565 | -56.8793 | -5251 | 4-27A-1-1,75-1 | 4-27A-1-1,75 | 25.750 | Buried | Mn nodule | Several | Clay | Grayish-brown (2.5 Y 5/2) plastic clay, slightly silty. | Contains a few black manganese nodules and pyrite (Figure 13. Core 1, Hole 27A, page 119 ) |
| 4-27A | 1969-02-23 | 15.8565 | -56.8793 | -5251 | 4-27A-1-4,50-65-1 | 4-27A-1-4,50-65 | 30.075 | Buried | Mn nodule | Several | Clay | Grayish-brown (2.5 Y 5/2) sticky clay grading to pale brown (10 YR 6/3) zeolitic clay. | Manganese nodules (between 50-65 cm) (Figure 13. Core 1, Hole 27A, page 119 ) |