Proterozoic extensional deformation in the Mount Isa inlier, Queensland, Australia
By: Passchier, C.W
.
Contributor(s): Williams, P.R.
Material type: 
ArticleDescription: 43-53p ; Illustration.Subject(s): Proterozoic extensional deformation - Mount Isa liner - Queensland - Australia | Proterozoic igneous complex - Mount Isa liner - Queensland - Australia | Sedimentary complex - Mount Isa liner - Queensland - Australia | Faults - Mount Isa liner - Queensland - Australia
In:
Geological magazine : Vol. 126 Iss. 1-6 Year. 1989Summary: Abstract
The earliest of four distinct phases of deformation recognized in the central part of the Proterozoic Mount Isa inlier involved brittle extensional faulting at shallow crustal levels. Extensional faulting produced stacks of imbricate fault slices, listric normal faults and characteristic tourmalinerich breccias. Structures belonging to this phase occur over a large part of the inlier and indicate an important phase of basin-forming crustal or lithospheric extension at 1750–1730 Ma. Late intense ductile deformation and tight folding of the imbricate systems destroyed part of these older structures, and obscures their existence in many parts of the inlier.
| Item type | Current location | Collection | Call number | Status | Date due | Barcode |
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Article
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Library and Information Centre Periodical Section | Bound Journal Collection | Not for loan | 002528_05 | ||
Serials/Scientific Journal
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Library and Information Centre Periodical Section | Bound Journal Collection | 550 GEO (Browse shelf) | Available | 002528 |
Abstract
The earliest of four distinct phases of deformation recognized in the central part of the Proterozoic Mount Isa inlier involved brittle extensional faulting at shallow crustal levels. Extensional faulting produced stacks of imbricate fault slices, listric normal faults and characteristic tourmalinerich breccias. Structures belonging to this phase occur over a large part of the inlier and indicate an important phase of basin-forming crustal or lithospheric extension at 1750–1730 Ma. Late intense ductile deformation and tight folding of the imbricate systems destroyed part of these older structures, and obscures their existence in many parts of the inlier.
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