Astakhov, Anatolii S; Gorbarenko, Sergey A; Vashchenkova, N G; Volokhin, Yu G (2000): Manganese contents and accumulation rates in reduced bottom sediments of the Sea of Okhotsk [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.775214, Supplement to: Astakhov, AS et al. (2000): Manganese distribution and accumulation rates in bottom sediments of the Sea of Okhotsk. Tikhookeanskaya Geologiya (Pacific Geology), 19(5), 47-60
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Abstract:
Manganese contents in reduced sediments and accumulation rates were investigated. Their values in sediments of most of cores are background (0.03-0.07 %).Anomalous concentrations (up to 2.5 %) and accumulation rates (up to 60 mg/cm**2/ka) occur near the known region of hydrothermal barite mineralization in the Derugin Basin. High accumulation rates of Mn (>10 mg/cm**2/ka) also occur in Holocene sediments to south-east from the Derugin Basin. It can be assumed that high Mn contents and accumulation rates occur there due to transportation of Mn-rich water from the Derugin Basin in the near-bottom layer under the lower border of the Sea of Okhotsk Intermediate Water. Intensive Mn accumulation is also typical for the South Okhotsk Basin near the Bussol Strait. Mn accumulation rates of glacial sediments of the second oxygen isotope stage are less significant, which is presumed to be caused by paleoceanological reasons.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Median Latitude: 54.533332 * Median Longitude: 146.630211 * South-bound Latitude: 45.356700 * West-bound Longitude: 140.716700 * North-bound Latitude: 70.835000 * East-bound Longitude: 154.000000
Date/Time Start: 1996-09-17T00:00:00 * Date/Time End: 1996-09-20T00:00:00
Event(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Astakhov, AS; Gorbarenko, SA; Vashchenkova, NG et al. (2000): (Table 1) Manganese contents in sediment cores and in the upper reduced sediment layer from the Sea of Okhotsk. https://doi.org/10.1594/PANGAEA.775211
- Astakhov, AS; Gorbarenko, SA; Vashchenkova, NG et al. (2000): (Table 2) Average sedimentation and accumulation rates of Sea of Okhotsk bottom sediments and average manganese contents and excessive accumulation rates for oxygen isotope stages 1 and 2. https://doi.org/10.1594/PANGAEA.775212