View in EDS

Evolution of a fold-thrust belt deforming a unit with pre-existing linear asperities: Insights from analog models.

Saved in:
Bibliographic Details
Title: Evolution of a fold-thrust belt deforming a unit with pre-existing linear asperities: Insights from analog models.
Authors: Burberry, Caroline M.1 cburberry2@unl.edu, Swiatlowski, Jerlyn L.1
Source: Journal of Structural Geology. Jun2016, Vol. 87, p1-18. 18p.
Subjects: Folds (Geology), Thrust faults (Geology), Basements, Structural geology
Geographic Terms: Dinaric Alps
Abstract: Heterogeneity, whether geometric or rheologic, in crustal material undergoing compression affects the geometry of the structures produced. This study documents the thrust fault geometries produced when discrete linear asperities are introduced into an analog model, scaled to represent bulk upper crustal properties, and compressed. Varying obliquities of the asperities are used, relative to the imposed compression, and the resultant development of thrust fault traces and branch lines in map view is tracked. Once the model runs are completed, cross-sections are created and analyzed. The models show that asperities confined to the base layer promote the clustering of branch lines in the surface thrusts. Strong clustering in branch lines is also noted where several asperities are in close proximity or cross. Slight reverse-sense reactivation of asperities cut through the sedimentary sequence is noted in cross-section, where the asperity and the subsequent thrust belt interact. The model results are comparable to the situation in the Dinaric Alps, where pre-existing faults to the SW of the NE Adriatic Fault Zone contribute to the clustering of branch lines developed in the surface fold-thrust belt. These results can therefore be used to evaluate the evolution of other basement-involved fold-thrust belts worldwide. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Structural Geology is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 115413422
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Evolution of a fold-thrust belt deforming a unit with pre-existing linear asperities: Insights from analog models.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Burberry%2C+Caroline+M%2E%22">Burberry, Caroline M.</searchLink><relatesTo>1</relatesTo><i> cburberry2@unl.edu</i><br /><searchLink fieldCode="AR" term="%22Swiatlowski%2C+Jerlyn+L%2E%22">Swiatlowski, Jerlyn L.</searchLink><relatesTo>1</relatesTo>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Structural+Geology%22">Journal of Structural Geology</searchLink>. Jun2016, Vol. 87, p1-18. 18p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Folds+%28Geology%29%22">Folds (Geology)</searchLink><br /><searchLink fieldCode="DE" term="%22Thrust+faults+%28Geology%29%22">Thrust faults (Geology)</searchLink><br /><searchLink fieldCode="DE" term="%22Basements%22">Basements</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+geology%22">Structural geology</searchLink>
– Name: SubjectGeographic
  Label: Geographic Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Dinaric+Alps%22">Dinaric Alps</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Heterogeneity, whether geometric or rheologic, in crustal material undergoing compression affects the geometry of the structures produced. This study documents the thrust fault geometries produced when discrete linear asperities are introduced into an analog model, scaled to represent bulk upper crustal properties, and compressed. Varying obliquities of the asperities are used, relative to the imposed compression, and the resultant development of thrust fault traces and branch lines in map view is tracked. Once the model runs are completed, cross-sections are created and analyzed. The models show that asperities confined to the base layer promote the clustering of branch lines in the surface thrusts. Strong clustering in branch lines is also noted where several asperities are in close proximity or cross. Slight reverse-sense reactivation of asperities cut through the sedimentary sequence is noted in cross-section, where the asperity and the subsequent thrust belt interact. The model results are comparable to the situation in the Dinaric Alps, where pre-existing faults to the SW of the NE Adriatic Fault Zone contribute to the clustering of branch lines developed in the surface fold-thrust belt. These results can therefore be used to evaluate the evolution of other basement-involved fold-thrust belts worldwide. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Structural Geology is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=115413422
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jsg.2016.04.005
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 18
        StartPage: 1
    Subjects:
      – SubjectFull: Folds (Geology)
        Type: general
      – SubjectFull: Thrust faults (Geology)
        Type: general
      – SubjectFull: Basements
        Type: general
      – SubjectFull: Structural geology
        Type: general
      – SubjectFull: Dinaric Alps
        Type: general
    Titles:
      – TitleFull: Evolution of a fold-thrust belt deforming a unit with pre-existing linear asperities: Insights from analog models.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Burberry, Caroline M.
      – PersonEntity:
          Name:
            NameFull: Swiatlowski, Jerlyn L.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 06
              Text: Jun2016
              Type: published
              Y: 2016
          Identifiers:
            – Type: issn-print
              Value: 01918141
          Numbering:
            – Type: volume
              Value: 87
          Titles:
            – TitleFull: Journal of Structural Geology
              Type: main
ResultId 1