Recent measurements of 36Cl in Yucca Mountain rock, soil and seepage
| Autor: | Klaus J. Stetzenbach, R. Howley, Y. Wei, James V. Cizdziel, Vernon F. Hodge, J. Cline, F. M. Phillips |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
Horizon (geology)
geography geography.geographical_feature_category biology Health Toxicology and Mutagenesis Yucca Public Health Environmental and Occupational Health Geochemistry Fault (geology) biology.organism_classification Pollution Chloride Analytical Chemistry Volcanic rock Petroleum seep Nuclear Energy and Engineering Breccia medicine Radiology Nuclear Medicine and imaging Spectroscopy Geology Accelerator mass spectrometry medicine.drug |
| Zdroj: | Journal of Radioanalytical and Nuclear Chemistry. 275:133-144 |
| ISSN: | 1588-2780 0236-5731 |
| DOI: | 10.1007/s10967-007-7002-9 |
| Popis: | Samples of rock, soil and seepage were collected from Yucca Mountain, USA, and analyzed for 36Cl/Cl ratios by accelerator mass spectrometry (AMS). Rock excavated from the Drill Hole Wash fault at repository horizon depths produced a ratio suggesting that small amounts of water with “bomb-pulse” 36Cl had percolated to that site over the past 50 years. Rock from four other sites within the exploratory studies facility did not yield bomb-pulse ratios. Ratios in the soil varied depending on depth and location, with some samples producing bomb-pulse signatures. Ratios for seep water were slightly elevated above the present cosmogenic background value. This paper also discusses results from a column study mimicking the passage of 36Cl through volcanic rock and from an experiment using bromide instead of chloride as a carrier in sample preparation for AMS. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink