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Post Flow-Through Experiment Characterization of Volcanic Tuff and Carbonate Rock Cores from the Nevada Test Site

Permanent Link: http://ncf.sobek.ufl.edu/NCFE003588/00001

Material Information

Title: Post Flow-Through Experiment Characterization of Volcanic Tuff and Carbonate Rock Cores from the Nevada Test Site Implications for Sm, U, Np, and Pu Transport
Physical Description: Book
Language: English
Creator: Walensky, Justin R.
Publisher: New College of Florida
Place of Publication: Sarasota, Fla.
Creation Date: 2005
Publication Date: 2005

Subjects

Subjects / Keywords: Nuclear
Geology
Radionuclide
Genre: bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract: As part of the United States Nuclear Testing Program from 1951-1992, 828 underground nuclear tests were conducted at the Nevada Test Site (NTS). These detonations resulted in residual radioactivity being left behind which has the possibility of transporting in the subsurface. In order to assess the extent to which radionuclides migrate in the environment, a series of flowthrough experiments were conducted in which a cocktail consisting of radionuclides commonly associated with nuclear test debris was pumped through volcanic tuff and carbonate rock cores, major geologic types found at the NTS. To examine the interactions of Sm, U, Np, and Pu with the rock cores, alpha radiography, secondary ion mass spectrometry, scanning electron microscopy, and electron microprobe analyses were performed. From these studies, Sm, U, Np, and Pu are shown to partition onto hematite and manganese-oxide minerals, with significantly more Sm associated with the rock matrix than U, Np, or Pu. In addition, the physical characterization methods, when used with previously determined sorption coefficients and elution data, provide an effective method for analyzing actinide transport behavior. Herein, the results of a series of flow-through experiments and the subsequent characterization of the rock core surfaces are reported.
Statement of Responsibility: by Justin R. Walensky
Thesis: Thesis (B.A.) -- New College of Florida, 2005
Electronic Access: RESTRICTED TO NCF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE
Bibliography: Includes bibliographical references.
Source of Description: This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Local: Faculty Sponsor: Sherman, Suzanne

Record Information

Source Institution: New College of Florida
Holding Location: New College of Florida
Rights Management: Applicable rights reserved.
Classification: local - S.T. 2005 W1
System ID: NCFE003588:00001

Permanent Link: http://ncf.sobek.ufl.edu/NCFE003588/00001

Material Information

Title: Post Flow-Through Experiment Characterization of Volcanic Tuff and Carbonate Rock Cores from the Nevada Test Site Implications for Sm, U, Np, and Pu Transport
Physical Description: Book
Language: English
Creator: Walensky, Justin R.
Publisher: New College of Florida
Place of Publication: Sarasota, Fla.
Creation Date: 2005
Publication Date: 2005

Subjects

Subjects / Keywords: Nuclear
Geology
Radionuclide
Genre: bibliography   ( marcgt )
theses   ( marcgt )
government publication (state, provincial, terriorial, dependent)   ( marcgt )
born-digital   ( sobekcm )
Electronic Thesis or Dissertation

Notes

Abstract: As part of the United States Nuclear Testing Program from 1951-1992, 828 underground nuclear tests were conducted at the Nevada Test Site (NTS). These detonations resulted in residual radioactivity being left behind which has the possibility of transporting in the subsurface. In order to assess the extent to which radionuclides migrate in the environment, a series of flowthrough experiments were conducted in which a cocktail consisting of radionuclides commonly associated with nuclear test debris was pumped through volcanic tuff and carbonate rock cores, major geologic types found at the NTS. To examine the interactions of Sm, U, Np, and Pu with the rock cores, alpha radiography, secondary ion mass spectrometry, scanning electron microscopy, and electron microprobe analyses were performed. From these studies, Sm, U, Np, and Pu are shown to partition onto hematite and manganese-oxide minerals, with significantly more Sm associated with the rock matrix than U, Np, or Pu. In addition, the physical characterization methods, when used with previously determined sorption coefficients and elution data, provide an effective method for analyzing actinide transport behavior. Herein, the results of a series of flow-through experiments and the subsequent characterization of the rock core surfaces are reported.
Statement of Responsibility: by Justin R. Walensky
Thesis: Thesis (B.A.) -- New College of Florida, 2005
Electronic Access: RESTRICTED TO NCF STUDENTS, STAFF, FACULTY, AND ON-CAMPUS USE
Bibliography: Includes bibliographical references.
Source of Description: This bibliographic record is available under the Creative Commons CC0 public domain dedication. The New College of Florida, as creator of this bibliographic record, has waived all rights to it worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law.
Local: Faculty Sponsor: Sherman, Suzanne

Record Information

Source Institution: New College of Florida
Holding Location: New College of Florida
Rights Management: Applicable rights reserved.
Classification: local - S.T. 2005 W1
System ID: NCFE003588:00001

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