Banerjee, R; Iyer, S D; Dutta, P (1991): Description, geochemistry and growth rate of buried nodules from the Central Indian Basin [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.854348, Supplement to: Banerjee, R et al. (1991): Buried nodules and associated sediments from the central Indian basin. Geo-Marine Letters, 11(2), 103-107, https://doi.org/10.1007/BF02431037
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Buried nodules from siliceous sediments in the central Indian Basin are morphologically variable and mineralogically consist of d-MnO2 and incipient todorokite. Compositionally they are weakly diagenetic. The sediment coarse fractions (>63 µm) at different depths show variable abundances of micronodules, volcanic glass shards and biodebris. Dissolution of biodebris increases and abundance of micronodules decreases with increasing depth. Enrichment in Mn, Fe, Cu, Ni, Co, together with a decrease in organic carbon in the sediment column, may result from diagenetic metal remobilization. Diagenetically remobilized trace metals might have been utilized for the growth of micronodules over the buried nodules.
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):
Coverage:
Latitude: -9.516667 * Longitude: 75.966667
Event(s):
SKAN22-B1 * Latitude: -9.516667 * Longitude: 75.966667 * Elevation: -5310.0 m * Recovery: 20 cm * Location: Indian Ocean * Method/Device: Box corer (BC) * Comment: Basis: MV Skandi Surveyor (SCAN22), Institute: National Institute of Oceanography, India
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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.
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
Download Data
Datasets listed in this publication series
- Banerjee, R; Iyer, SD; Dutta, P (1991): Annotated record of the detailed examination of the Mn nodules from a station core of the MV Skandi Surveyor, Cruise 22 expedition. https://doi.org/10.1594/PANGAEA.854346
- Banerjee, R; Iyer, SD; Dutta, P (1991): Chemical composition and growth rate of a batch of buried Mn nodules recovered in a station core of the MV Skandi Surveyor, Cruise 22 expedition. https://doi.org/10.1594/PANGAEA.854347