Paragenesis and Geochronology of the Nopal I Uranium Deposit, Mexico

M. Fayek ; M. Ren

关键词: AR FACILITIES;    AGE ESTIMATION;    CORROSION;    MASS SPECTROSCOPY;    MEXICO;    MINERALOGY;    NATURAL ANALOGUE;    NUCLEAR FUELS;    PERFORMANCE;    PETROGRAPHY;   

DOI  :  10.2172/899952
RP-ID  :  NA
PID  :  OSTI ID: 899952
Others  :  Other: MOL.20070214.0070, DC# 47035
Others  :  TRN: US0702332

学科分类：核能源与工程

美国|英语

来源: SciTech Connect

【 摘 要 】

Uranium deposits can, by analogy, provide important information on the long-term performance of radioactive waste forms and radioactive waste repositories. Their complex mineralogy and variable elemental and isotopic compositions can provide important information, provided that analyses are obtained on the scale of several micrometers. Here, we present a structural model of the Nopal I deposit as well as petrography at the nanoscale coupled with preliminary U-Th-Pb ages and O isotopic compositions of uranium-rich minerals obtained by Secondary Ion Mass Spectrometry (SIMS). This multi-technique approach promises to provide ''natural system'' data on the corrosion rate of uraninite, the natural analogue of spent nuclear fuel.