von Stackelberg, Ulrich (1994): Annotated record of the detailed examination of Mn deposits from the SO 79 (SEDIPERU - TUSCH) expedition from R/V Sonne [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.857283, Supplement to: von Stackelberg, U (1994): SEDIPERU. Investigation of the sedimentory history of the Peru Basin, contribution to the protection of deep-sea environment - SO 79 Second final report (SEDIPERU. Untersuchung der Sedimentationsgeschichte des Peru-Beckens als Beitrag zum Tiefsee-Umweltschutz - SO 79 Zweiter Abschlussbericht). Bundesanstalt für Geowissenschaften und Rohstoffe Hannover, 105 pp
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Abstract:
The research cruise SO79 with RV SONNE (April 18 to June 09 1992) aimed to assess the impact of a potential mining activity on the sensitive deep-sea ecosystem of the Peru Basin. Up to now only results of reconnaissance surveys of the extended manganese nodule field discovered in 1978 in the Peru Basin are available. The hydroacoustic, sedimentological, and geochemical studies on data and sample material of SO79 came to the following results: a small-scaled variation in thickness respectively type of surface sediments shown by the sediment echosounder respectively the side-scan-sonar is assumably due to variations in deposition or erosion. The composition of sediments is controlled by climatic cycles of different length which were caused by the variable influence of glaciation of the northern hemisphere. We think that during the quaternary a deep-water circulation reduced in intensity and O2-content may have produced a suboxic diagenetic environment which led to a remobilization and redeposition of Mn forming manganese nodules in the oxic surface sediments. Near the distinct redox boundary at about 10 cm depth the growth conditions for nodules are extremely favourable. Due to the great variability of sediments the impact of deep-sea mining will be highly variable and the disturbance of the seafloor will change the ecosystem considerably.
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:
A manganese nodule recovered with the RV Sonne during the SO-79 expedition in the Pacific. Bundesanstalt für Geowissenschaften und Rohstoffe, Hannover, http://www.bgr.bund.de/EN/Themen/MarineRohstoffforschung/Bilder/Pol_Mn-Knolle_g_en.jpg
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):
Coverage:
Median Latitude: -7.375535 * Median Longitude: -90.630328 * South-bound Latitude: -8.781700 * West-bound Longitude: -90.912300 * North-bound Latitude: -6.463300 * East-bound Longitude: -90.297500
Date/Time Start: 1992-04-25T00:00:00 * Date/Time End: 1992-05-29T00:00:00
Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 1.80 m
Event(s):
SO79_1KG (GIK15555-1) * Latitude: -6.463300 * Longitude: -90.399800 * Date/Time: 1992-04-25T00:00:00 * Elevation: -4119.0 m * Recovery: 0.55 m * Location: Peru Basin * Campaign: SO79 (SEDIPERU - TUSCH) * Basis: Sonne * Method/Device: Box corer (Reineck) (BCR) * Comment: GPS, Mn nodules
SO79_10KG (GIK15556-1) * Latitude: -6.713300 * Longitude: -90.725800 * Date/Time: 1992-04-28T00:00:00 * Elevation: -3961.0 m * Recovery: 0.45 m * Location: Peru Basin * Campaign: SO79 (SEDIPERU - TUSCH) * Basis: Sonne * Method/Device: Box corer (Reineck) (BCR) * Comment: GPS, Mn nodules
SO79_12KG * Latitude: -6.613300 * Longitude: -90.750200 * Date/Time: 1992-04-30T00:00:00 * Elevation: -3698.0 m * Recovery: 0.25 m * Location: Peru Basin * Campaign: SO79 (SEDIPERU - TUSCH) * Basis: Sonne * Method/Device: Box corer (Reineck) (BCR) * Comment: GPS, Mn nodules
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 | von Stackelberg, Ulrich | |||
| 2 | Date/Time of event | Date/Time | von Stackelberg, Ulrich | |||
| 3 | Latitude of event | Latitude | von Stackelberg, Ulrich | |||
| 4 | Longitude of event | Longitude | von Stackelberg, Ulrich | |||
| 5 | Elevation of event | Elevation | m | von Stackelberg, Ulrich | ||
| 6 | Method/Device of event | Method/Device | von Stackelberg, Ulrich | |||
| 7 | Sample ID | Sample ID | von Stackelberg, Ulrich | |||
| 8 | DEPTH, sediment/rock | Depth sed | m | von Stackelberg, Ulrich | Geocode | |
| 9 | Position | Position | von Stackelberg, Ulrich | |||
| 10 | Deposit type | Deposit type | von Stackelberg, Ulrich | |||
| 11 | Quantity of deposit | Quantity | von Stackelberg, Ulrich | |||
| 12 | Size | Size | von Stackelberg, Ulrich | |||
| 13 | Substrate type | Substrate | von Stackelberg, Ulrich | |||
| 14 | Sediment type | Sediment | von Stackelberg, Ulrich | |||
| 15 | Comment | Comment | von Stackelberg, Ulrich | |||
| 16 | Description | Description | von Stackelberg, Ulrich |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
548 data points