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: Laramide deformation of the wingate sandstone, Colorado National Monument
    sub title: a study of cataclastic flow
  name:
    name part: Jamison, William Richard
    name part: 1949-
    role:
      role term: creator
  name:
    name part: Johnson, Brann
    role:
      role term: degree committee member.
  name:
    name part: Logan, John
    role:
      role term: degree committee member.
  name:
    name part: Parrish, Dave
    role:
      role term: degree committee member.
  name:
    name part: Schapery, Richard
    role:
      role term: degree committee member.
  name:
    name part: Stanton, Robert
    role:
      role term: degree committee member.
  name:
    name part: Stearns, David W.
    role:
      role term: degree supervisor.
  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: 1979
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: x, 171 leaves : illustrations ; 29 cm
  abstract: During Laramide tectonism, the aeolian Wingate Sandstone was forced folded along the northeast of the Uncompahgre Plateau above faults within the underlying crystalline basement. The internal deformation of the Wingate occurred by the relative translation and rotation of this sandstone across mesoscopically discrete zones of intense deformation: a form of cataclastic flow. The basic form for these zones of localized deformation is the deformation band. Little of no internal deformation of the sandstone occurred between the deformation bands, either mesoscopically or microscopically. The deformation band initiates as a single band: a discrete, usually planar zone (~0.3 mm wide) within which sand grains are progressively comminuted and compacted with increasing offset along the band. The quartz grains within this zone appear to have been comminuted by a process of grain fracture assisted by crystal lattice creep mechanisms. With offset of more than ~0.5 mm additional band segments begin to form along the single band, creating an anastomosing band. In outcrop appearance, the deformation bands are lighter colored and more resistant than the undeformed sandstone. Cohesion of the rock is maintained across these features. Deformation bands usually form as conjugate shearing features, which intersect at an angle of 20° to 40°. The bulk strain resulting from offset along the deformation bands increases linearly with band density. The distribution and density of deformation bands within the Wingate is a function of the relative and absolute amounts of rotation and translation of the basement surface that occurred across the fault zones within the underlying basement materials. The Wingate has an inherent strength anisotropy following cross-beds and cross-bed-set boundaries. Deformation bands parallel these features in the early phases of deformation. However, the deformation bands appear to displacement-harden. Consequently, the initial strength anisotropy of the Wingate is r…
  note: "Major subject: Geology."
  note: Typescript (photocopy).
  note: Vita.
  note: Ph. D. Texas A & M University 1979
  note: Includes bibliographical references (leaves 163-168).
  subject:
    geographic code: n-us-tx
  subject:
    topic: Geology, Structural
  subject:
    topic: Rock deformation
    geographic: Texas
  subject:
    topic: Major geology
  subject:
    topic: Geology, Structural
  subject:
    topic: Rock deformation
  subject:
    geographic: Texas
  classification: QE604 .J34 1979
  related item:
    title info:
      title: Laramide deformation of the wingate sandstone, Colorado National Monument
    name:
      name part: Jamison, William Richard, 1949-
    origin info:
      publisher: 1979
    identifier: (OCoLC)757562403
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-661696
  identifier: http://gateway.proquest.com/openurl
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-661696
  related item:
    location:
      url: http://gateway.proquest.com/openurl
  record info:
    record content source: TXA
    record creation date: 810508
    record change date: 20220104090526.0
    record identifier: in00000658609
    language of cataloging:
      language term: eng