CCPortal
DOI10.1016/j.earscirev.2018.10.011
Australian-Antarctic breakup and seafloor spreading: Balancing geological and geophysical constraints
Williams S.E.; Whittaker J.M.; Halpin J.A.; Müller R.D.
Date Issued2019
ISSN0012-9091
startpage41
endpage58
Volume188
Other AbstractThe motion of diverging tectonic plates is typically constrained by geophysical data from preserved ocean crust. However, constraining plate motions during continental rifting and the breakup process relies on balancing evidence from a diverse range of geological and geophysical observations, often subject to differing interpretations. Reconstructing the evolution of rifting and breakup between Australia and Antarctica epitomizes the challenges involved in creating detailed models of Pangea breakup. In this example, differing degrees of emphasis on and alternative interpretations of offshore geophysical data, in particular magnetic anomalies and seismic reflection profiles, and onshore geological data, lead to starkly contrasting views of how the continents were configured at the onset of Mesozoic rifting. Here, we critically review reconstructions of rifting and breakup in the light of all available geological and geophysical data, including magnetic anomalies, fracture zones, conjugate crustal domains, amounts of continental extension, continental geology, plate boundary locations, break-up ages and stratigraphy. We identify the most viable plate tectonic reconstructions both with and without the input of the oldest, more controversial magnetic anomaly interpretations, and discuss implications for reconstructions of other margin pairs. Our analysis highlights key discrepancies between reconstructions based solely on geological piercing points, and those based on a range of constraints. These insights provide a powerful framework for reducing the range of viable models for Australian-Antarctic rifting, and provide key lessons for future efforts aimed at constraining pre- and syn-rift plate tectonic reconstructions. © 2018 Elsevier B.V.
Language英语
scopus keywordsAustralian plate; continental breakup; oceanic crust; plate boundary; plate motion; reconstruction; rifting; seafloor spreading
journalEARTH-SCIENCE REVIEWS
Document Type期刊论文
Identifierhttp://gcip.llas.ac.cn/handle/2XKMVOVA/209989
AffiliationEarthByte Group, School of Geosciences, University of SydneyNSW 2006, Australia; Institute for Marine and Antarctic Studies, University of Tasmania, Private Bag 129, Hobart, Tasmania 7001, Australia
Recommended Citation
GB/T 7714
Williams S.E.,Whittaker J.M.,Halpin J.A.,et al. Australian-Antarctic breakup and seafloor spreading: Balancing geological and geophysical constraints[J],2019,188.
APA Williams S.E.,Whittaker J.M.,Halpin J.A.,&Müller R.D..(2019).Australian-Antarctic breakup and seafloor spreading: Balancing geological and geophysical constraints.EARTH-SCIENCE REVIEWS,188.
MLA Williams S.E.,et al."Australian-Antarctic breakup and seafloor spreading: Balancing geological and geophysical constraints".EARTH-SCIENCE REVIEWS 188(2019).
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Williams S.E.]'s Articles
[Whittaker J.M.]'s Articles
[Halpin J.A.]'s Articles
Baidu academic
Similar articles in Baidu academic
[Williams S.E.]'s Articles
[Whittaker J.M.]'s Articles
[Halpin J.A.]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Williams S.E.]'s Articles
[Whittaker J.M.]'s Articles
[Halpin J.A.]'s Articles
Terms of Use
No data!
Social Bookmark/Share

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.