Vlasova, Irina E; Kuptsov, Vladimir M (1994): Growth rates of Fe-Mn nodules and age and sedimentation rates of host sediments from the Southeast Pacific [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.759580, Supplement to: Vlasova, IE; Kuptsov, VM (1994): New data on growth rates of Eastern South Pacific ferromanganese nodules. Oceanology, 34(1), 104-111
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Abstract:
Growth rates of nine ferromanganese nodules collected from the Southeast Pacific were estimated using the alpha radiogpaphic technigue. Growth rates range from 1 to 16 mm per million years. In three nodules measurements were made on two opposite sides; two of them showed no growth in one of measured directions during the last 300 ky, whereas in the third nodule growth rates on the opposite sides differ by factor 2. Average sedimentation rate of deposits underlying the nodules estimated by the radiocarbon and excess 230Th methods, were 4 mm/1000 years with rather minor variations. Difference between sedimentation rates and nodule growth rates is caused by activity of benthic fauna, as suggested by inversion of radiocarbon dates with depth.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: -43.725826 * Median Longitude: -115.873607 * South-bound Latitude: -52.266700 * West-bound Longitude: -147.200000 * North-bound Latitude: -36.333300 * East-bound Longitude: -96.466700
Event(s):
DM14-983 * Latitude: -39.933300 * Longitude: -147.200000 * Elevation: -5470.0 m * Location: Southeast Pacific * Campaign: DM14 * Basis: Dmitry Mendeleev * Method/Device: Grab (GRAB)
DM14-984 * Latitude: -48.516700 * Longitude: -134.950000 * Elevation: -4830.0 m * Location: Southeast Pacific * Campaign: DM14 * Basis: Dmitry Mendeleev * Method/Device: Grab (GRAB)
DM14-985 * Latitude: -52.266700 * Longitude: -130.116700 * Elevation: -4500.0 m * Location: Southeast Pacific * Campaign: DM14 * Basis: Dmitry Mendeleev * Method/Device: Grab (GRAB)
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Vlasova, IE; Kuptsov, VM (1994): (Table 3) Results of radiocarbon dating of bottom sediments from the Southeast Pacific. https://doi.org/10.1594/PANGAEA.759578
- Vlasova, IE; Kuptsov, VM (1994): (Table 4+1) Sedimentation rates measured by the radiocarbon method (14C) and by the 230Th excess method and nodule growth rates measured by the alpha method. https://doi.org/10.1594/PANGAEA.759579