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Margolis, Stanley V; Ku, Teh-Lung; Glasby, Geoffrey P; Fein, J S; Audley-Charles, M G (1978): Geochemistry on manganese nodules from Timor [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.854781, Supplement to: Margolis, SV et al. (1978): Fossil manganese nodules from Timor: Geochemical and radiochemical evidence for deep-sea origin. Chemical Geology, 21(3-4), 185-198, https://doi.org/10.1016/0009-2541(78)90044-X

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Abstract:
Fossil Mn nodules of Cretaceous age from western Timor exhibit chemical, structural and radioisotope compositions consistent with their being of deep-sea origin. These nodules show characteristics similar to nodules now found at depths of 3,500-5,000 m in the Pacific and Indian Oceans. Slight differences in the fine structure and chemistry of these nodules and modern deep-sea nodules are attributed to diagenetic alteration after uplift of enclosing sediments.
Further details:
Fig. 1 In situ location of Mn nodules. All were collected from the same surface exposure over an area of about 10 m. The site is 4.5 km ENE of Niki Niki in Indonesian Timor on a hillside leading down to the river Tobee
Fig. 2 Photograph of Mn nodules studied here
Fig. 3 Photography of internal structure of a Timor nodule showing concentric growth bands around a small central nucleus
Project(s):
NOAA and MMS Marine Minerals Geochemical Database (NOAA-MMS)
Coverage:
Latitude: -9.767176 * Longitude: 124.531159
Event(s):
Noil_Tobee_M * Latitude: -9.767176 * Longitude: 124.531159 * Elevation: 480.0 m * Location: Noni river, Timor
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1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions.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:
4 datasets

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Datasets listed in this publication series

  1. Margolis, SV; Ku, T-L; Glasby, GP et al. (1978): (Table 1, page 189), Bulk-sample X-ray fluorescence analysis of six West Timor nodules. https://doi.org/10.1594/PANGAEA.854777
  2. Margolis, SV; Ku, T-L; Glasby, GP et al. (1978): (Table 3, page 191), Microprobe analysis of four West Timor nodules (each representing an average of four spots taken in the metal oxide layers of each nodule). https://doi.org/10.1594/PANGAEA.854778
  3. Margolis, SV; Ku, T-L; Glasby, GP et al. (1978): (Table 4, page 194), Radiochemical data on the outside Mn-rich layer of three West Timor nodules. https://doi.org/10.1594/PANGAEA.854779
  4. Margolis, SV; Ku, T-L; Glasby, GP et al. (1978): (Table 4 bis, page 194), Radiochemical data on four successive Mn-rich layers of a West Timor nodule. https://doi.org/10.1594/PANGAEA.854780