Cronan, David S (1972): (Table 1, page 321) Chemical composition of sediments and manganese rich deposits sediments from the Mid-Atlantic Ridge near 45°N [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.883769, In supplement to: Cronan, DS (1972): The Mid-Atlantic Ridge near 45 °N, XVII: Al, As, Hg, and Mn in Ferruginous Sediments from the Median Valley. http://store.pangaea.de/Projects/NOAA-MMS/e72-025.pdf, Canadian Journal of Earth Sciences, 9(3), 319-323, https://doi.org/10.1139/e72-025
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Project(s):
Coverage:
Median Latitude: 45.532863 * Median Longitude: -27.792813 * South-bound Latitude: 45.313300 * West-bound Longitude: -29.453300 * North-bound Latitude: 45.761700 * East-bound Longitude: -27.221700
Date/Time Start: 1971-06-15T00:00:00 * Date/Time End: 1971-07-25T00:00:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
HUD71/22-343 * Latitude: 45.513300 * Longitude: -27.385000 * Date/Time: 1971-06-20T00:00:00 * Elevation: -2643.0 m * Location: North Atlantic * Campaign: HUD71/22 (71022) * Basis: Hudson * Method/Device: Free-fall grab (FFGR)
Comment:
Analytical results are determined on a calcium carbonate free basis.
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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 | ||||
| 2 | Identification | ID | ||||
| 3 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 4 | Aluminium | Al | % | Inductively coupled plasma atomic emission spectroscope (ICP-AES) | ||
| 5 | Arsenic | As | mg/kg | X-ray fluorescence (XRF) | ||
| 6 | Mercury | Hg | mg/kg | |||
| 7 | Iron | Fe | % | Inductively coupled plasma atomic emission spectroscope (ICP-AES) | ||
| 8 | Manganese | Mn | % | Inductively coupled plasma atomic emission spectroscope (ICP-AES) | ||
| 9 | Calcium carbonate | CaCO3 | % | |||
| 10 | Sediment type | Sediment | ||||
| 11 | Description | Description |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
135 data points
Data
| 1 Event | 2 ID | 3 Depth sed [m] | 4 Al [%] | 5 As [mg/kg] | 6 Hg [mg/kg] | 7 Fe [%] | 8 Mn [%] | 9 CaCO3 [%] | 10 Sediment | 11 Description |
|---|---|---|---|---|---|---|---|---|---|---|
| HUD71/22-343 | HUD71/22-343-Sed | 0 | 5.78 | 289 | 0.578 | 0.46 | 8.67 | 91.36 | Clay | Metalliferous sediment |
| HUD71/22-355 | HUD71/22-355-Sed | 0 | 9.72 | 169 | 0.592 | 0.33 | 8.03 | 88.18 | Clay | Metalliferous sediment |
| HUD71/22-389 | HUD71/22-389-Sed | 0 | 7.13 | 83 | 0.163 | 0.44 | 5.82 | 66.36 | Clay | Mn-coated organic material |
| HUD71/22-397 | HUD71/22-397-Sed | 0 | 7.99 | 199 | 0.697 | 0.64 | 12.94 | 87.49 | Clay | Metalliferous sediment |
| HUD71/22-403 | HUD71/22-403-Sed | 0 | 5.66 | 126 | 0.203 | 0.41 | 9.55 | 77.95 | Clay | Metalliferous sediment |
| HUD71/22-412 | HUD71/22-412-Sed | 0 | 4.15 | 237 | 0.564 | 0.47 | 11.34 | 83.18 | Clay | Metalliferous sediment |
| HUD71/22-414 | HUD71/22-414-Sed | 0 | 4.48 | 132 | 0.235 | 0.21 | 7.77 | 76.58 | Clay | Metalliferous sediment |
| HUD71/22-426 | HUD71/22-426-Sed | 0 | 5.05 | 48 | 0.161 | 0.52 | 3.72 | 75.22 | Clay | Metalliferous sediment |
| HUD71/22-434 | HUD71/22-434-Sed | 0 | 3.96 | 193 | 0.308 | 0.75 | 8.62 | 77.27 | Clay | Metalliferous sediment |
| HUD71/22-450 | HUD71/22-450-Sed | 0 | 4.33 | 238 | 0.614 | 0.29 | 5.06 | 86.18 | Clay | Metalliferous sediment |
| HUD71/22-457 | HUD71/22-457-Sed | 0 | 5.10 | 361 | 0.549 | 0.47 | 14.13 | 87.27 | Clay | Metalliferous sediment |
| HUD71/22-462 | HUD71/22-462-Sed | 0 | 4.99 | 306 | 0.466 | 0.86 | 12.25 | 84.99 | Clay | Metalliferous sediment |
| HUD71/22-468 | HUD71/22-468-Sed | 0 | 7.23 | 69 | 0.231 | 0.17 | 4.11 | 82.72 | Clay | Metalliferous sediment |
| HUD71/22-482 | HUD71/22-482-Sed | 0 | 6.84 | 122 | 0.220 | 0.19 | 6.35 | 79.54 | Clay | Metalliferous sediment |
| HUD71/22-491 | HUD71/22-491-Sed | 0 | 2.66 | 129 | 0.888 | 0.17 | 3.01 | 77.49 | Clay | Metalliferous sediment |