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Influence of pre-existing fault fabrics on normal-fault development
Descriptive
TypeOfResource
Text
TitleInfo
(ID = T-1)
Title
Influence of pre-existing fault fabrics on normal-fault development
SubTitle
an experimental study
PartName
PartNumber
NonSort
Identifier
ETD_1988
Identifier
(type = hdl)
http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000051831
Language
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(type = code)
eng
Genre
(authority = marcgt)
theses
Subject
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(authority = RUETD)
Topic
Geological Sciences
Subject
(ID = SBJ-2);
(authority = ETD-LCSH)
Topic
Faults (Geology)
Abstract
Many rift basins (e.g., the Jeanne d’Arc rift basin, the North Sea, the East African rift system) have undergone multiple episodes of extension with differing extension directions. Commonly, pre-existing faults formed during an earlier extensional episode act as zones of weakness, influencing subsequent deformation and affecting the development of these provinces. This thesis uses scaled experimental (analog) models to study the effect of a pre-existing fault fabric on fault development during extension. Specifically, I investigate how the orientation of a pre-existing fault fabric and the properties of a pre-existing fault fabric (including burial of the fabric) influence deformation during extension. The experiments show that the normal faults that develop during an initial extensional phase influence normal-fault development during subsequent extension. The orientation of pre-existing normal faults, relative to the second-phase extension direction, controls the reactivation of pre-existing normal faults during the second phase; the sense of slip on reactivated faults; and the attitude, number, and length of new normal faults. The magnitude of first-phase extension (which controls the number, size, and density of first-phase faults) influences the dominance of a particular fault population, in addition to the attitude and length of new normal faults. If a pristine cover is present, pre-existing faults affect the size, length, and location of new normal faults but not new fault orientations. All of the models indicate that fault orientations and populations in areas with a complex deformational history (observed either in map view or cross section) may not reflect the number, direction, and relative magnitude of each extensional episode. Variations in fault geometries, interactions, and fault reactivations in the models are similar to those observed in the Jeanne d’Arc basin, offshore Newfoundland; the Suez rift; the northern North Sea; and the Pattani basin, Thailand.
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electronic resource
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xii, 143 p. : ill.
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Note
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Ph.D.
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Includes bibliographical references
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by Alissa A. Henza
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Henza
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Alissa A.
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1981-
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author
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Alissa A. Henza
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Withjack
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Martha
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chair
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Advisory Committee
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Martha O Withjack
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Schlische
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Roy
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internal member
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Roy W Schlische
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Mountain
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Gregory
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Advisory Committee
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Gregory Mountain
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Sinclair
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Iain
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outside member
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Advisory Committee
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Iain Sinclair
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Rutgers University
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degree grantor
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Graduate School - New Brunswick
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school
OriginInfo
DateCreated
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2009
DateOther
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2009-10
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xx
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NjNbRU
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Rutgers University Electronic Theses and Dissertations
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ETD
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Title
Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
Identifier
(type = doi)
doi:10.7282/T3DJ5FSX
Genre
(authority = ExL-Esploro)
ETD doctoral
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Rights
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The author owns the copyright to this work
Copyright
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Copyright protected
Notice
Note
Availability
Status
Open
Reason
Permission or license
Note
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Henza
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Alissa
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Alissa Henza
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Rutgers University. Graduate School - New Brunswick
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Author Agreement License
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I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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11202560
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