Chemical analysis of archived stream-sediment samples, Alaska
نویسندگان
چکیده
First posted June 24, 2021 For additional information, contact: Director, Alaska Science CenterU.S. Geological Survey4210 University DriveAnchorage, 99508 Geochemical data are presented for more than 1,500 archived stream-sediment samples and accompanying quality control samples. The sediments were reanalyzed to improve the stream geochemical dataset support ongoing U.S. Survey (USGS) studies. Sediment primarily from USGS Mineral Resources Program’s sample archive in Denver, Colorado, but a few & Geophysical Surveys’ Geologic Materials Center Anchorage, Alaska. All submitted contract laboratory, AGAT Laboratories, analysis. analyzed using 60-element analytical method involving fusion of by sodium peroxide, dissolution cake nitric acid, elemental analysis inductively coupled plasma-optical emission spectroscopy plasma-mass spectroscopy. Additionally, 106 Nixon Fork area second multi-element decomposition mixture hydrochloric, nitric, perchloric, hydrofluoric acids resulting solution latter was used because detection limit is lower several elements including As, Cd, Pb, Sb. Mercury concentrations 296 southeast determined cold-vapor atomic absorption spectrometry method. concentration along with standard reference material that
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ژورنال
عنوان ژورنال: Open-file report /
سال: 2021
ISSN: ['2332-4899', '2331-1258', '0196-1497']
DOI: https://doi.org/10.3133/ofr20211058