Onset of Antarctic Circumpolar Current 30 million years ago as Tasmanian Gateway aligned with westerlies
- H. Scher, J. Whittaker, S. Williams, J. Latimer, W. E. Kordesch, M. Delaney
- Environmental Science, GeologyNature
- 29 July 2015
Recon reconstructions of ocean circulation show that massive reorganization and homogenization of Southern Ocean water masses coincided with migration of the northern margin of the Tasmanian Gateway into the mid-latitude westerly wind band, which is reconstructed at 64° S, near to the northernmargin.
Constraining the Jurassic extent of Greater India: Tectonic evolution of the West Australian margin
- A. Gibbons, U. Barckhausen, R. Müller
- Geology
- 1 May 2012
Alternative reconstructions of the Jurassic northern extent of Greater India differ by up to several thousand kilometers. We present a new model that is constrained by revised seafloor spreading…
The breakup of East Gondwana: Assimilating constraints from Cretaceous ocean basins around India into a best‐fit tectonic model
- A. Gibbons, J. Whittaker, R. Müller
- Geology
- 1 March 2013
Published models for the Cretaceous seafloor‐spreading history of East Gondwana result in unlikely tectonic scenarios for at least one of the plate boundaries involved and/or violate particular…
Seismic facies and stratigraphy of the Cenozoic succession in McMurdo Sound, Antarctica: Implications for tectonic, climatic and glacial history
- C. Fielding, J. Whittaker, S. Henrys, T. Wilson, T. Nash
- Geology
- 7 April 2008
Abstract Integration of data from fully cored stratigraphic holes with an extensive grid of seismic reflection lines in McMurdo Sound, Antarctica, has allowed the formulation of a new model for the…
Global sediment thickness data set updated for the Australian‐Antarctic Southern Ocean
- J. Whittaker, A. Goncharov, S. Williams, R. Müller, G. Leitchenkov
- Geology
- 1 August 2013
We present a new, 5 min sediment thickness grid for the Australian‐Antarctic region (60°E–155°E, 30°S–70°S). New seismic reflection and refraction data have been used to add detail to the conjugate…
Ridge subduction sparked reorganization of the Pacific plate‐mantle system 60–50 million years ago
- M. Seton, N. Flament, J. Whittaker, R. Müller, M. Gurnis, D. Bower
- Geology
- 28 March 2015
A reorganization centered on the Pacific plate occurred ~53–47 million years ago. A “top‐down” plate tectonic mechanism, complete subduction of the Izanagi plate, as opposed to a “bottom‐up” mantle…
Major Australian-Antarctic Plate Reorganization at Hawaiian-Emperor Bend Time
- J. Whittaker, R. Müller, A. Goncharov
- GeologyScience
- 5 October 2007
A marked bend in the Hawaiian-Emperor seamount chain supposedly resulted from a recent major reorganization of the plate-mantle system there 50 million years ago. Although alternative mantle-driven…
GlobSed: Updated Total Sediment Thickness in the World's Oceans
- E. Straume, C. Gaina, J. Hopper
- Geology, Environmental ScienceGeochemistry Geophysics Geosystems
- 1 April 2019
We present GlobSed, a new global 5‐arc‐minute total sediment thickness grid for the world's oceans and marginal seas. GlobSed covers a larger area than previously published global grids and…
Tectonic history of mid-Miocene to present southern Victoria Land Basin, inferred from seismic stratigraphy in McMurdo Sound, Antarctica
- S. Henrys, T. Wilson, J. Whittaker, C. Fielding, J. M. Hall, T. Naish
- Geology
- 2007
New and existing seismic reflection data in southern McMurdo Sound have been used to investigate Neogene tectonic history of the Terror Rift adjacent to the Transantarctic Mountains and along the…
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