rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Radiocarbon dating of prehistoric rock paintings
  name:
    name part: Russ, Jon Lester
    name part: 1956-
    role:
      role term: creator
  name:
    name part: Rowe, Marvin W.
    role:
      role term: degree supervisor.
  name:
    name part: Schmitt, Richard P.
    role:
      role term: degree committee member.
  name:
    name part: Schweikert, Emile A.
    role:
      role term: degree committee member.
  name:
    name part: Tieh, Thomas T.
    role:
      role term: degree committee member.
  name:
    name part: Texas A & M University
    role:
      role term: degree granting institution.
  type of resource: text
  genre: bibliography
  genre: Academic theses
  origin info:
    place:
      place term: xx
    date issued: 1991
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xvi, 215 leaves : illustrations ; 29 cm
  abstract: Prehistoric rock paintings occur worldwide, but until recently, they could not be dated directly. We have developed a new method utilizing a low-pressure, low-temperature oxygen plasma, that allows direct [^14]C dates to be obtained on these artifacts. The plasma provides the means for separating the organic component in the paint from the inorganic carbon in the substrate, allowing the paint to be dated by accelerator mass spectrometry (AMS). The technique is applicable even to paintings that occur on limestone (CaCO3) walls. The rock paintings from the Lower Pecos region of Texas have been dated (3,865 [plus or minus] 100; 3,355 [plus or minus] 65; and 3,000 [plus or minus] 70 years BP), and are in accord with expectations based on archaeological inference (circa 4,000 to 3,000 years ago). We have further demonstrated the method by dating a known age sample; our method produced an age of 3,665 [plus or minus] 65 years BP, matching the established age of the sample which is 3,655 [plus or minus] 60 years BP. Additional experiments have shown that the technique produces negligible mass fractionation, the maximum deviation in the δ[^13]C produced by our process was found to be 0.16[parts per thousand] from the untreated sample. Each of these results support our conclusion that the technique has the potential of producing accurate and reliable ages for prehistoric rock paintings.
  note: "Major subject: Chemistry."
  note: Typescript (photocopy).
  note: Vita.
  note: Ph. D. Texas A & M University 1991
  note: Includes bibliographical references.
  subject:
    geographic code: n-us-tx
  subject:
    topic: Plasma chemistry
  subject:
    topic: Radiocarbon dating
  subject:
    topic: Rock paintings
    geographic: Texas
  subject:
    topic: Major chemistry
  subject:
    topic: Rock paintings
  subject:
    geographic: Texas
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-1284244
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-1284244
  record info:
    record content source: TXA
    record creation date: 930202
    record change date: 20220103134953.0
    record identifier: in00001121987
    language of cataloging:
      language term: eng