Gelety, V F; Kalmykov, G V; Parkhomenko, IYu (2007): (Table 1) Age of sediments with anomalously high Hg concentrations in core BDP-98, Lake Baikal [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.792851, Supplement to: Gelety, VF et al. (2007): Mercury in the sedimentary deposits of Lake Baikal. Geochemistry International, 45(2), 170-177, https://doi.org/10.1134/S001670290702005X
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Mercury distribution was examined in the sediments of Lake Baikal that were sampled within the scope of the Baikal Drilling International Project in 1996-1999. The Hg concentrations in the ancient sediments are close to those in the modern sediments with the exception of a few peak values, whose ages coincide with those of active volcanism in adjacent areas. Mercury was demonstrated to be contained in the sediments in the adsorbed Hg0 mode, predominantly in relation with organic matter. When the organic matter of the bottom sediments is decomposed in the course of lithification, Hg is retained in the sediments adsorbed on the residual organic matter, and the concentration of this element corresponds to its initial content in the bottom sediments during their accumulation. Mercury concentrations in lithologically distinct bottom sediments of Lake Baikal and its sediments as a whole depend on the climate. Sediments that were formed during warm periods of time contain more Hg than those produced during cold periods or glaciation. Periodical variations in the Hg concentrations in the bottom sediments of Lake Baikal reflect the variations in the contents of this element in the Earth's atmosphere in the Late Cenozoic, which were, in turn, controlled by the climatic variations on the planet and, thus, can be used for detailed reconstructions of variations in the average global temperature near the planet's surface.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Latitude: 53.826800 * Longitude: 108.631500
Date/Time Start: 1998-01-01T00:00:00 * Date/Time End: 1998-01-01T00:00:00
Minimum DEPTH, sediment/rock: 71.810 m * Maximum DEPTH, sediment/rock: 237.185 m
Event(s):
BDP-98 * Latitude: 53.826800 * Longitude: 108.631500 * Date/Time: 1998-01-01T00:00:00 * Elevation: 455.0 m * Lake water depth: 333 m * Recovery: 600 m * Location: Baikal Lake * Campaign: BDP1998 * Basis: Sampling/drilling in lake * Method/Device: Drilling/drill rig (DRILL)
Comment:
Age data are from Horiuchi et al. (2003, doi:10.1029/2003GL017488); Rasskazov et al. (2000) and Yarmolyuk et al. (2001).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Gelety, V F | |||
| 2 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 3 | Mercury | Hg | mg/kg | Gelety, V F | ||
| 4 | Age model, optional | Age model opt | ka | Gelety, V F | ||
| 5 | Age, standard deviation | Age std dev | ± | Gelety, V F |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
24 data points