Geochemistry on water profiles from the Kara Sea


Autoria(s): Beeskow, Bettina; Rachold, Volker
Cobertura

MEDIAN LATITUDE: 73.731633 * MEDIAN LONGITUDE: 80.709611 * SOUTH-BOUND LATITUDE: 69.980933 * WEST-BOUND LONGITUDE: 73.238467 * NORTH-BOUND LATITUDE: 76.961783 * EAST-BOUND LONGITUDE: 85.763217 * DATE/TIME START: 2000-09-04T05:53:00 * DATE/TIME END: 2000-09-20T19:58:00

Data(s)

20/11/2003

Resumo

As a part of the Russian-German project "Siberian River-Runoff (SIRRO)" the major element composition of the dissolved load and the major and trace element composition of particulate load and bottom sediment of the Yenisei River and Estuary were analyzed and examined in context of the basin lithology and climate. In addition, the processes controlling the transformation of the river load in the estuarine mixing zone were investigated. The chemical composition of the dissolved and particulate load of the Yenisei fluvial endmember is generally comparable to that of other major world rivers. The dissolved load is chiefly controlled by carbonate weathering and the chemical composition of the river suspended particulate matter (SPM) is similar to that of the North American Shale Composite (NASC), which represents the weathering product of the upper continental crust. The Chemical Index of Alteration (CIA) of the Yenisei SPM amounts to 71, which indicates moderate chemical weathering. With regard to the SPM geochemistry, the Yenisei occupies an intermediate position between the adjacent rivers Khatanga and the Lena. Drastic changes in the composition of the river load are seen in the mixing zone between fresh and salt water. While dissolved Na, Ca, Mg, K, CI, S04, F, Br, Sr and HC03 behave conservatively, dissolved Fe is completely removed from solution at very low salinities. Particulate Mn exhibits a pronounced mid-salinity minimum concomitant with a maximum of dissolved Mn, which is probably related to suboxic conditions in the area of the so-called "marginal filter", where highest turbidities are found. The Mn-minimum in SPM is paralleled by depletions of the elements Ba, Zn, Cd, Ni, Cu and V, which can be associated with manganese particles. The estuarine bottom sediments are composed of mud and sand and the sedimentological parameters of the bottom sediments have to be considered for the interpretation of the bulk geochemical data. The chemical composition of the mud is comparable to the SPM, whereas the sand is relatively enriched in Si/Al, Ba/Al, Zr/Al and Sr/Al ratios and depleted in transition metals.

Formato

application/zip, 43 datasets

Identificador

https://doi.pangaea.de/10.1594/PANGAEA.802254

doi:10.1594/PANGAEA.802254

Idioma(s)

en

Publicador

PANGAEA

Direitos

CC-BY: Creative Commons Attribution 3.0 Unported

Access constraints: unrestricted

Fonte

Supplement to: Beeskow, Bettina; Rachold, Volker (2003): Geochemical processes in the Yenisei River and Estuary. In: Stein, R; Fahl, K; Fütterer, D K; Galimov, E M & Stepanets, O V (eds.), Siberian River Run-off in the Kara Sea: Characterisation, Quantification, Variability, and Environmental Significance, 488 pp. Proceedings in Marine Sciences, Elsevier, Amsterdam, 6, 125-148

Palavras-Chave #[HCO3]-; [SO4]2-; >1.66 mm; 0.412-0.375 µm; 0.452-0.412 µm; 0.496-0.452 µm; 0.545-0.496 µm; 0.598-0.545 µm; 0.656-0.598 µm; 0.721-0.656 µm; 0.791-0.721 µm; 0.868-0.791 µm; 0.948-1.041 mm; 0.953-0.868 µm; 1.041-1.143 mm; 1.047-0.953 µm; 1.143-1.255 mm; 1.149-1.047 µm; 1.255-1.377 mm; 1.261-1.149 µm; 1.377-1.512 mm; 1.384 -1.261 µm; 1.512-1.66 mm; 1.520-1.384 µm; 1.668-1.520 µm; 1.832-1.668 µm; 10.78-9.818 µm; 101.1-92.09 µm; 11.83-10.78 µm; 111.0-101.1 µm; 12.99-11.83 µm; 121.8-111.0 µm; 133.7-121.8 µm; 14.26-12.99 µm; 146.8-133.7 µm; 15.65-14.26 µm; 161.2-146.8 µm; 17.18-15.65 µm; 176.8-161.2 µm; 18.86-17.18 µm; 194.2-176.8 µm; 2.010-1.832 µm; 2.207-2.010 µm; 2.423-2.207 µm; 2.660-2.423 µm; 2.920-2.660 µm; 20.70-18.86 µm; 213.2-194.2 µm; 213.2-234.1 µm; 22.73-20.70 µm; 234.1-256.8 µm; 24.95-22.73 µm; 256.8-282.1 µm; 27.38-24.95 µm; 282.1-309.6 µm; 3.205-2.920 µm; 3.519-3.205 µm; 3.862-3.519 µm; 30.07-27.38 µm; 309.6-339.8 µm; 33.01-30.07 µm; 339.8-373.1 µm; 36.24-33.01 µm; 373.1-409.6 µm; 39.77-36.24 µm; 4.240-3.863 µm; 4.655-4.240 µm; 409.6-449.7 µm; 43.67-39.78 µm; 449.7-493.6 µm; 47.94-43.67 µm; 493.6-541.9 µm; 5.110-4.655 µm; 5.610-5.110 µm; 52.62-47.94 µm; 541.9-594.9 µm; 57.77-52.62 µm; 594.9-653 µm; 6.158-5.611 µm; 6.761-6.158 µm; 63.41-57.77 µm; 653.0-716.9 µm; 69.62-63.41 µm; 7.421-6.760 µm; 716.9-786.9 µm; 76.42-69.61 µm; 786.9-863.9 µm; 8.147-7.421 µm; 8.943-8.147 µm; 83.89-76.42 µm; 863.9-948.2 µm; 9.818-8.943 µm; 92.09-83.90 µm; Al2O3; Aluminium oxide; Arsenic; As; Atomic absorption spectrometry (AAS); Ba; Barium; Beckman Coulter Laser diffraction particle size analyzer LS 200; Bicarbonate; Br-; Bromide; Ca; Cadmium; Calcium; Calcium oxide; CaO; Carbon, inorganic, total; Carbon, organic, total; Carbon, total; Cd; Ce; Cerium; Chloride; Chromium; Cl-; Co; Cobalt; Cond; Conductivity; Copper; Cr; CTD; Cu; Depth; DEPTH, sediment/rock; DEPTH, water; Depth water; Dy; Dysprosium; Element analyser CHN; Element analyser CHN, LECO; Er; Erbium; Eu; Europium; Event; F-; Fe; Fe2O3; Fluoride; Ga; Gadolinium; Gallium; Gd; GR; Grain size descr; Grain size description; Hafnium; Hf; Ho; Holmium; ICP-AES, Inductively coupled plasma - atomic emission spectroscopy; ICP-MS, Inductively coupled plasma - mass spectrometry; Ion chromatography; Iron; Iron oxide, Fe2O3; K; K2O; La; Lanthanum; Lead; LOI; Loss on ignition; Lu; Lutetium; Magnesium; Magnesium oxide; Manganese; Manganese oxide; Mg; MgO; Mn; MnO; Mo; Molybdenum; Na; Na2O; Natural gamma ray; Nb; Nd; Neodymium; Ni; Nickel; Niobium; Nitrogen, total; P2O5; Pb; Phosphorus oxide; Potassium; Potassium oxide; Pr; Praseodymium; Rb; Rubidium; S; Sal; Salinity; Samarium; Si(OH)4; Siberian River Run-Off; Silicate; Silicon dioxide; SiO2; SIRRO; Size fraction > 1.660 mm, gravel; Size fraction 0.412-0.375 µm; Size fraction 0.452-0.412 µm; Size fraction 0.496-0.452 µm; Size fraction 0.545-0.496 µm; Size fraction 0.598-0.545 µm; Size fraction 0.656-0.598 µm; Size fraction 0.721-0.656 µm; Size fraction 0.791-0.721 µm; Size fraction 0.868-0.791 µm; Size fraction 0.948-1.041 mm; Size fraction 0.953-0.868 µm; Size fraction 1.041-1.143 mm; Size fraction 1.047-0.953 µm; Size fraction 1.143-1.255 mm; Size fraction 1.149-1.047 µm; Size fraction 1.255-1.377 mm; Size fraction 1.261-1.149 µm; Size fraction 1.377-1.512 mm; Size fraction 1.384 -1.261 µm; Size fraction 1.512-1.660 mm; Size fraction 1.520-1.384 µm; Size fraction 1.668-1.520 µm; Size fraction 1.832-1.668 µm; Size fraction 10.78-9.818 µm; Size fraction 101.1-92.09 µm; Size fraction 11.83-10.78 µm; Size fraction 111.0-101.1 µm; Size fraction 12.99-11.83 µm; Size fraction 121.8-111.0 µm; Size fraction 133.7-121.8 µm; Size fraction 14.26-12.99 µm; Size fraction 146.8-133.7 µm; Size fraction 15.65-14.26 µm; Size fraction 161.2-146.8 µm; Size fraction 17.18-15.65 µm; Size fraction 176.8-161.2 µm; Size fraction 18.86-17.18 µm; Size fraction 194.2-176.8 µm; Size fraction 2.010-1.832 µm; Size fraction 2.207-2.010 µm; Size fraction 2.423-2.207 µm; Size fraction 2.660-2.423 µm; Size fraction 2.920-2.660 µm; Size fraction 20.70-18.86 µm; Size fraction 213.2-194.2 µm; Size fraction 213.2-234.1 µm; Size fraction 22.73-20.70 µm; Size fraction 234.1-256.8 µm; Size fraction 24.95-22.73 µm; Size fraction 256.8-282.1 µm; Size fraction 27.38-24.95 µm; Size fraction 282.1-309.6 µm; Size fraction 3.205-2.920 µm; Size fraction 3.519-3.205 µm; Size fraction 3.862-3.519 µm; Size fraction 30.07-27.38 µm; Size fraction 309.6-339.8 µm; Size fraction 33.01-30.07 µm; Size fraction 339.8-373.1 µm; Size fraction 36.24-33.01 µm; Size fraction 373.1-409.6 µm; Size fraction 39.77-36.24 µm; Size fraction 4.240-3.863 µm; Size fraction 4.655-4.240 µm; Size fraction 409.6-449.7 µm; Size fraction 43.67-39.78 µm; Size fraction 449.7-493.6 µm; Size fraction 47.94-43.67 µm; Size fraction 493.6-541.9 µm; Size fraction 5.110-4.655 µm; Size fraction 5.610-5.110 µm; Size fraction 52.62-47.94 µm; Size fraction 541.9-594.9 µm; Size fraction 57.77-52.62 µm; Size fraction 594.9-653.0 µm; Size fraction 6.158-5.611 µm; Size fraction 6.761-6.158 µm; Size fraction 63.41-57.77 µm; Size fraction 653.0-716.9 µm; Size fraction 69.62-63.41 µm; Size fraction 7.421-6.760 µm; Size fraction 716.9-786.9 µm; Size fraction 76.42-69.61 µm; Size fraction 786.9-863.9 µm; Size fraction 8.147-7.421 µm; Size fraction 8.943-8.147 µm; Size fraction 83.89-76.42 µm; Size fraction 863.9-948.2 µm; Size fraction 9.818-8.943 µm; Size fraction 92.09-83.90 µm; Sm; Sodium; Sodium oxide; Sr; Strontium; Sulphate; Sulphur, total; Ta; Tantalum; Tb; TC; Terbium; Thulium; TIC; TiO2; Titanium oxide; Tm; TN; TOC; Tungsten; U; Uranium; V; Vanadium; W; X-ray fluorescence (XRF); Y; Yb; Ytterbium; Yttrium; Zinc; Zirconium; Zn; Zr
Tipo

Dataset