Ultra-trace Element Characterization of the Central Ottawa River Basin using a Rapid, Flexible, and Low-volume ICP-MS Method
| Autor: | Ronny Schoenberg, Thomas F. Nägler, Cora A. McKenna, Balz S. Kamber, Edel M. O’Sullivan, Michael G. Babechuk, Carolina Rosca |
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| Rok vydání: | 2020 |
| Předmět: |
geography
geography.geographical_feature_category 010504 meteorology & atmospheric sciences Oxide Analytical chemistry Drainage basin 010501 environmental sciences 01 natural sciences 6. Clean water Dilution Low volume chemistry.chemical_compound Geophysics Adsorption chemistry 13. Climate action Geochemistry and Petrology Dissolved load Inductively coupled plasma mass spectrometry 0105 earth and related environmental sciences Ultra trace |
| Zdroj: | Aquatic Geochemistry. 26:327-374 |
| ISSN: | 1573-1421 1380-6165 |
| Popis: | Ultra-trace ( HREE-enriched REE + Y patterns, small natural positive Y and Gd anomalies, and negative Eu and Ce anomalies. These REE + Y features are coherent downstream in the OR apart from amplification of Eu and Ce anomalies during REE removal/dilution. The OR samples capture a downstream decrease in sparingly soluble HFSE (Th, Nb, Ta, Zr, Hf), presumably related to their colloid-particulate removal from the dissolved load, accompanied by crustal Zr/Hf (32.5 ± 5.1) and supercrustal Nb/Ta (25.1 ± 7.7) ratios. Subcrustal Th/U (0.17–0.96) and supercrustal Mo/W (12.0–74.5) ratios in all ORB waters indicate preferential release and aqueous solubility of U > Th and Mo > W, with the latter attributed primarily to preferential W adsorption on soil or upstream aquatic (oxy)(hydr)oxide surfaces. |
| Databáze: | OpenAIRE |
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