Skip navigation
Skip navigation

Ross Sea Mylonites and the timimg of intracontinental extension within the West Antarctic rift system

Smith Siddoway, Christine; Baldwin, Suzanne; Fitzgerald, Paul G; Fanning, Christopher; Luyendyk, Bruce

Description

There are few direct constraints on the timing and style of faulting in the Ross Sea sector of the West Antarctic rift system, although Cretaceous plate reconstructions indicate that Ross Sea extension between East and West Antarctica occurred prior to breakup of the Gondwana margin ca. 80 Ma. Mylonitic gneisses dredged from the eastern Ross Sea indicate shear-zone deformation considerably earlier, at 98-95 Ma. Strain analysis of fabrics indicates 85%-100% extension. Overprinting brittle...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/80324
Source: Geology
DOI: 10.1130/G20005.1

Download

There are no files associated with this item.


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  20 July 2017/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator