KOPRI Repository

Dissolved platinum in major rivers of East Asia

Metadata Downloads
Title
Dissolved platinum in major rivers of East Asia
Other Titles
아시안 다소 대강의 백금 농도 평가 연구
Authors
Huh, Youngsook
Tseren-Ochir, Soyol-Erdene
Keywords
PGE; flux; mass balance; platinum
Issue Date
2012
Citation
Huh, Youngsook, Tseren-Ochir, Soyol-Erdene. 2012. Dissolved platinum in major rivers of East Asia. Geochemical. Geochemical. 2012.11.20~.
Abstract
Dissolved platinum concentrations of eleven large pristine river systems in East Asia (~200 samples) were determined to better constrain the oceanic platinum budget. Most samples had concentrations less than 1.4 pM, and relatively high concentrations up to 5.8 pM were measured in only approximately 6% of the samples. Principal component analysis was carried out using Pt, major elements (Na, K, Mg, Ca, HCO3-, Cl-, SO42-, Si), Sr, and 87Sr/86Sr of the dissolved load to derive the potential sources of Pt. The Pt in the main (<1.4 pM) group was best clustered with Mg, HCO3-, Ca, Sr, and SO42-, interpreted as weathering of carbonates and associated gypsum. The Pt in the outlier group was best clustered with Si, K, 87Sr/86Sr, Ca, and HCO3-, interpreted as weathering of silicates. The median Pt concentrations of the individual river systems had only a small range, from 0.18 pM (Duman) to 0.63 (Huang He), and the difference in Pt yield mainly resulted from the difference in runoff. The rivers draining the eastern Tibetan Plateau – the Salween, Mekong, Chang Jiang (Yangtze), Hong (Red), and Huang He (Yellow) – had relatively higher Pt yield than the rivers of the Russian Far East – the Amur, Lena, Yana, Indigirka, and Kolyma. The discharge-weighted mean Pt concentration was 0.36 pM for the eleven river systems of East Asia. If this value is extrapolated globally, the estimated rivconcentrations up to 5.8 pM were measured in only approximately 6% of the samples. Principal component analysis was carried out using Pt, major elements (Na, K, Mg, Ca, HCO3-, Cl-, SO42-, Si), Sr, and 87Sr/86Sr of the dissolved load to derive the potential sources of Pt. The Pt in the main (<1.4 pM) group was best clustered with Mg, HCO3-, Ca, Sr, and SO42-, interpreted as weathering of carbonates and associated gypsum. The Pt in the outlier group was best clustered with Si, K, 87Sr/86Sr, Ca, and HCO3-, interpreted as weathering of silicates.
URI
http://repository.kopri.re.kr/handle/201206/8403
Conference Name
Geochemical
Conference Place
Geochemical
Conference Date
2012.11.20~
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse