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Planer-Friedrich, Britta ; Merkel, Broder J.:
Volatile metals and metalloids in hydrothermal gases.
In: Environmental Science & Technology.
Bd. 40
(2006)
Heft 10
.
- S. 3181-3187.
ISSN 0013-936X
DOI: https://doi.org/10.1021/es051476r
Abstract
Volatile metals and metalloids were sampled from hot springs, fumaroles, and a hydrothermally influenced wetlandin Yellowstone National Park. The sampling was based on diffusion through gas sampling chambers. Collectedgases were stabilized by dissolution and oxidation in 1:100 diluted NaOCl. Special procedures were developed toanalyze the oxidized samples by GF-AAS and HG-AAS. For ICP-MS, samples had to be blank-corrected for polyatomic isotope interferences, especially by 23Na35Cl+ and23Na37-Cl+ on 58Ni and 60Ni and by 40Ar23Na+ on 63Cu. From the concentrations trapped in solution, net diffusion rates were calculated by Fick’s first law. The highest concentrations reached a maximum of 8 g/m3 for volatile silicon. Volatile nickel, tungsten, zinc, copper, and molybdenum, previously only known from anthropogenic sources, occurred naturally in the hydrothermal gases in ranges of tens to hundreds of íg/m3. Replicate measurements indicated significant temporal variations in concentrations, probably the result of complex changes in the hydrothermal regime as well as varying microbial activity. Global correlations between gaseous and superficial aqueous phases were missing.
Weitere Angaben
| Publikationsform: | Artikel in einer Zeitschrift |
|---|---|
| Begutachteter Beitrag: | Ja |
| Zusätzliche Informationen: | BAYCEER80715 |
| Institutionen der Universität: | Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Umweltgeochemie Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften > Professur Umweltgeochemie > Professur Umweltgeochemie - Univ.-Prof. Dr. Britta Planer-Friedrich Fakultäten Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften Fakultäten > Fakultät für Biologie, Chemie und Geowissenschaften > Fachgruppe Geowissenschaften |
| Titel an der UBT entstanden: | Ja |
| Themengebiete aus DDC: | 500 Naturwissenschaften und Mathematik |
| Eingestellt am: | 08 Mai 2015 06:18 |
| Letzte Änderung: | 08 Mai 2015 06:18 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/13144 |