Geochemical and Isotopic Evaluation of Groundwater Movement in Corrective Action Unit 97: Yucca Flat/Climax Mine, Nevada Test Site, Nevada, Rev. No.: 0 Page: 4 of 283
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Geochemical and Isotopic Evaluation of Groundwater Movement in CAU 97: Yucca Flat/Climax Mine
TABLE OF CONTENTS
L ist of F igures ........................................
L ist of Tables ........................................
List of Acronyms and Abbreviations .......................
List of Stratigraphic Unit/Location Abbreviations and Symbols. .
List of Symbols for Elements and Compounds ...............
Executive Sum m ary ...................................
1.0 Introduction ....................................
1.1 A pproach ................................
1.2 M ethodology .............................
1.3 L im itations ...............................
2.0 Hydrogeological and Hydrogeochemical Setting ........
2.1 Hydrogeologic Framework...................
2.2 Yucca Flat Hydrostratigraphic Framework Model.
2.3 Regional-Scale Groundwater Flow.............
2.4 Groundwater Flow in Yucca Flat ..............2.4.1 Groundwater Elevations in the Yucca Flat Area . .
2.5 Stable Isotope Patterns in the Regional Lower Carbonate A
3.0 Yucca Flat/Climax Mine Geochemistry Data..................
3.1 Data Compilation and Selection of Representative Data for
E valuations .....................................
3.2 Overview of Geochemical Data ......................
3.2.1 M ajor-Ion Chemistry .......................
3.2.2 Stable Isotopes of Oxygen and Hydrogen .......
3.2.3 Carbon Isotopes ...........................
3.2.3.1 Groundwater Age Estimates from
Dissolved Organic 14C ............
3.2.4 C hlorine-36 ..............................
3.2.5 Strontium and 87Sr/86Sr Values ...............
3.2.6 Uranium and 234U/238U Activity Ratio .........
3.3 M ineralogy D ata .................................
3.3.1 Mineralogy of Volcanic Rocks................
3.3.2 Lower Carbonate Aquifer Mineralogy ..........aquifer
Geochemical
3.3.3 Mineralogy of Fractured Granite in the Climax Stock............ 3-41
4.0 Groundwater Recharge ...............................................
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Farnham, Irene. Geochemical and Isotopic Evaluation of Groundwater Movement in Corrective Action Unit 97: Yucca Flat/Climax Mine, Nevada Test Site, Nevada, Rev. No.: 0, report, February 1, 2006; United States. (https://digital.library.unt.edu/ark:/67531/metadc878411/m1/4/: accessed July 17, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.