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: Normal-fault and fold development in sedimentary rocks above a pre-existing basement normal fault
  name:
    name part: Patton, Thomas Lewis
    role:
      role term: creator
  name:
    name part: Fletcher, Raymond C.
    role:
      role term: degree supervisor.
  name:
    name part: Friedman, Melvin
    role:
      role term: degree committee member.
  name:
    name part: Johnson, Brann
    role:
      role term: degree committee member.
  name:
    name part: Logan, Joah
    role:
      role term: degree supervisor.
  name:
    name part: Sharman, George
    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: 1984
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: x, 165 leaves : illustrations ; 29 cm
  abstract: Comparisons of field, experimental, and theoretical data on the deformation in a sedimentary layer due to movement on an underlying, pre-existing basement fault, provide the basis for a conceptual normal-fault model in such a layer. Initial displacement along a 70(DEGREES) basement normal fault generates arcuate maximum-compressive-stress and shear-fracture trajectories immediately above the basement-fault tip. Their concave surface face the downthrown (hanging-wall) side of the layer. Both a region of low mean stress (compression positive) and high differential stress also overlie the basement-fault tip, providing optimal conditions for failure. Failure occurs by stress release along shear-fracture trajectories, resulting in short, upward-steepening normal faults which may obtain a reverse sense of separation before dieing out toward the downthrown side of the layer. Re-establishment of similar states of stress with continued basement-fault movement produces a series of nested, arcuate fault segments merging to a common surface or surfaces which ultimately comprise the through-going normal-fault system. Once such a system is established, the inactive smaller segments are preserved in the hanging wall. Additional faulting occurs to accommodate compression and extension associated with translation along the nonplanar, through-going fault. Monoclinal folding in the upper portions of the layer accompanies fault development at depth. The fold is slightly asymmetric with a narrower upper hinge and a wider lower hinge. The monocline tends to develop toward the side of the layer over the basement footwall. Narrow, steeper limbed monoclines associated with the upward-propagating fault tip may be superposed on the larger, earlier formed one. Once the through-going fault has fragmented the monocline, the hanging-wall limb may continue to steepen or may develop reverse drag with subsequent fault translation depending on whether the through-going fault steepens or shallows with…
  note: "Major subject: Geology."
  note: Thirteen illustrations in pocket.
  note: Typescript (photocopy).
  note: Vita.
  note: Ph. D. in Philosophy Texas A & M University 1984
  note: Includes bibliographical references (leaves 142-152).
  subject:
    topic: Faults (Geology)
    topic: Measurement
  subject:
    topic: Folds (Geology)
    topic: Measurement
  subject:
    topic: Geological mapping
  subject:
    topic: Geological modeling
  subject:
    topic: Geology
  classification: QE606 .P32 1984
  identifier: http://proxy.library.tamu.edu/login
  identifier: https://hdl.handle.net/1969.1/DISSERTATIONS-582331
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: https://hdl.handle.net/1969.1/DISSERTATIONS-582331
  record info:
    record content source: TXA
    record creation date: 850719
    record change date: 20220103135256.0
    record identifier: in00000574509
    language of cataloging:
      language term: eng