Decay-series disequilibrium study of in-situ, long-term radionuclide transport in water-rock systems

Shangde Luo, K. U. Teh-Lung, Robert Roback, Micheal Murrell, Travis L. Mcling

Research output: Contribution to journalConference articlepeer-review


Uranium and thorium-series disequilibrium in nature permits the determination of many in-situ physico-chemical, geologic and hydrologic variables that control the long-term migration of radionuclides in geologic systems. It also provides site-specific, natural analog information valuable to the assessment of geologic disposal of nuclear wastes. In this study, a model that relates the decay-series radioisotope distributions among solution, sorbed and solid phases in water-rock systems to processes of water transport, sorption-desorption, dissolution-precipitation, radioactive ingrowth-decay, and α recoil is discussed and applied to a basaltic aquifer at the Idaho National Engineering and Environmental Laboratory (INEEL), Idaho.

Original languageEnglish
Pages (from-to)217-224
Number of pages8
JournalMaterials Research Society Symposium - Proceedings
Publication statusPublished - 2000 Dec 1
EventScientific Basis for Nuclear Waste Management XXIII - Boston, MA, USA
Duration: 1999 Nov 291999 Dec 2

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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