The Resource Precambrian evolution of the Salalah crystalline basement from structural analysis and 40Ar/39Ar geochronology, by Hanadi Abulateef Al-Doukhi

Precambrian evolution of the Salalah crystalline basement from structural analysis and 40Ar/39Ar geochronology, by Hanadi Abulateef Al-Doukhi

Label
Precambrian evolution of the Salalah crystalline basement from structural analysis and 40Ar/39Ar geochronology
Title
Precambrian evolution of the Salalah crystalline basement from structural analysis and 40Ar/39Ar geochronology
Statement of responsibility
by Hanadi Abulateef Al-Doukhi
Creator
Author
Subject
Language
eng
Summary
"The Salalah Crystalline Basement (SCB) is the largest Precambrian exposure in Oman located on the southern margin of the Arabian Plate at the Arabian Sea shore. This work used remote sensing, detailed structural analysis and the analysis of ten samples using 40Ar/39Ar age dating to establish the Precambrian evolution of the SCB by focusing on its central and southwestern parts. This work found that the SCB evolved through four deformational events that shaped its final architecture: (1) Folding and thrusting event that resulted in the emplacement of the Sadh complex atop the Juffa complex. This event resulted in the formation of possibly N-verging nappe structure; (2) Regional folding event around SE- and SW-plunging axes that deformed the regional fabric developed during the N-verging nappe structure and produced map-scale SE- and SW-plunging antiforms shaping the complexes into a semi-dome structure; (3) Strike-slip shearing event that produced a conjugate set of NE-trending sinistral and NW-trending dextral strike-slip shear zones; and (4) Localized SE-directed gravitational collapse manifested by top-to-the-southeast kinematic indicators. Deformation within the SCB might have ceased by 752.2+̲2.7 Ma as indicated by an age given by an undeformed granite. The thermochron of samples collected throughout the SCB complexes shows a single cooling event that occurred between about 800 and 760 Ma. This cooling event could be accomplished by crustal exhumation resulting in regional collapse following the prolonged period of the contractional deformation of the SCB. This makes the SCB a possible metamorphic core complex."--Abstract, page iii
Member of
Cataloging source
UMR
http://library.link/vocab/creatorName
Al-Doukhi, Hanadi Abulateef
Degree
Ph. D.
Dissertation year
2014
Granting institution
Missouri University of Science and Technology
Illustrations
illustrations
Index
no index present
Literary form
non fiction
Nature of contents
  • dictionaries
  • bibliography
  • theses
http://library.link/vocab/subjectName
  • Geology, Stratigraphic
  • Crystalline rocks
  • Geology, Structural
  • Radioactive dating
Label
Precambrian evolution of the Salalah crystalline basement from structural analysis and 40Ar/39Ar geochronology, by Hanadi Abulateef Al-Doukhi
Instantiates
Publication
Note
Vita
Bibliography note
Includes bibliographic references (pages 76-78)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
882475901
Extent
1 online resource (x, 79 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations.
Specific material designation
remote
System control number
(OCoLC)882475901
Label
Precambrian evolution of the Salalah crystalline basement from structural analysis and 40Ar/39Ar geochronology, by Hanadi Abulateef Al-Doukhi
Publication
Note
Vita
Bibliography note
Includes bibliographic references (pages 76-78)
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
882475901
Extent
1 online resource (x, 79 pages)
Form of item
online
Governing access note
These materials are protected under copyright by the original author
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Other physical details
illustrations.
Specific material designation
remote
System control number
(OCoLC)882475901

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