Magnetic anomaly identifications form the primary data set from which the age of the oceanic lithosphere can be determined, a critical component of reconstructing the seafloor spreading history of ocean basins. This data is now available as part of an open source, community-driven online repository that contains quality-checked magnetic anomaly picks, organised by ocean basin and publication source.
Dr Simon Williams
Academic Staff
Phone: +61 2 9351 8904
Madsen Building F09, Room 404School of Geosciences
The University of Sydney
Sydney, NSW 2006
Australia
See below for EarthByte content related to Simon.
Earth and Planetary Science Letters – Topographic assymetry of the South Atlantic from global models of mantle flow and lithospheric stretching
Flament, N., Gurnis, M., Williams, S., Seton, M., Skogseid, J., Heine, C., & Müller, R. D. (2014). Topographic asymmetry of the South Atlantic from global models of mantle flow and lithospheric stretching. Earth and Planetary Science Letters, 387, 107-119. dx.doi.org/10.1016/j.epsl.2013.11.017. Topographic asymmetry of the South Atlantic from global models of mantle flow and lithospheric stretching … Read more…
Topographic asymmetry of the South Atlantic from global models of mantle flow and lithospheric stretching
Citation
Flament, N., Gurnis, M., Williams, S., Seton, M., Skogseid, J., Heine, C., & Müller, R. D. (2014). Topographic asymmetry of the South Atlantic from global models of mantle flow and lithospheric stretching. Earth and Planetary Science Letters, 387, 107-119. dx.doi.org/10.1016/j.epsl.2013.11.017.
Abstract
The relief of the South Atlantic is characterized by elevated passive continental margins along southern Africa and eastern Brazil, and by the bathymetric asymmetry of the southern oceanic basin where the western flank is much deeper than the eastern flank. We investigate the origin of these topographic features in the present and over time since the Jurassic with a model of global mantle flow and lithospheric deformation. The model progressively assimilates plate kinematics, plate boundaries and lithospheric age derived from global tectonic reconstructions with deforming plates, and predicts the evolution of mantle temperature, continental crustal thickness, long-wavelength dynamic topography, and isostatic topography. … Read more…
Solid Earth – Full-fit reconstruction of the Labrador Sea and Baffin Bay
Hosseinpour, M., Müller, R. D., Williams, S. E., & Whittaker, J. M. (2013). Full-fit reconstruction of the Labrador Sea and Baffin Bay. Solid Earth, 4(2), 461-479. doi :10.5194/se-4-461-2013. Full-fit reconstruction of the Labrador Sea and Baffin Bay Supplementary material
Simon William’s paper selected as a research highlight in EOS
The recently published paper by Simon Williams et al. 2013, on Early India-Australia spreading history revealed by newly detected Mesozoic magnetic anomalies in the Perth Abyssal Plain, was selected as one of three research highlights in the current edition of EOS. Well done! Download EOS research highlights – pdf Download the paper – pdf
Simon William's paper selected as a research highlight in EOS
The recently published paper by Simon Williams et al. 2013, on Early India-Australia spreading history revealed by newly detected Mesozoic magnetic anomalies in the Perth Abyssal Plain, was selected as one of three research highlights in the current edition of EOS. Well done! Download EOS research highlights – pdf Download the paper – pdf
Proceedings of the West Australian Basins Symposium IV – Tectonic Evolution and Continental Fragmentation of the Southern West Australian Margin
Whittaker, J.M., Halpin, J.A., Williams, S.E., Hall, L.S., Gardner, R., Kobler, M.E., Daczko, N.R. and Müller, R.D., (2013). Tectonic Evolution and Continental Fragmentation of the Southern West Australian Margin. Proceedings of the West Australian Basins Symposium IV, 18p. Tectonic Evolution and Continental Fragmentation of the Southern West Australian Margin
Proceedings of the West Australian Basins Symposium IV – Newly-recognised Continental Fragments Rifted from the West Australian Margin
Williams, S. E., Whittaker, J. M., & Müller, R. D. (2013). Newly-recognised continental fragments rifted from the West Australian margin. In The Sedimentary Basins of Western Australia IV. Proceedings of the Petroleum Exploration Society of Australia Symposium, Perth, WA (p. 10). Newly-recognised continental fragments rifted from the West Australian margin
Big Data Knowledge Discovery featured in Australian Journal of Mining
The EarthByte ‘Big Data Knowledge Discovery Project’ is on the front cover of the current issue of the Australian Journal of Mining. Download the Paper – pdf Read more about the Big Data Knowledge Discovery project here
Journal of Geophysical Research: Solid Earth – Early India-Australia spreading history revealed by newly detected Mesozoic magnetic anomalies in the Perth Abyssal Plain
Williams, S. E., Whittaker, J. M., Granot, R., & Müller, D. R. (2013). Early India‐Australia spreading history revealed by newly detected Mesozoic magnetic anomalies in the Perth Abyssal Plain. Journal of Geophysical Research: Solid Earth, 118(7), 3275-3284. doi:10.1002/jgrb.50239. Early India‐Australia spreading history revealed by newly detected Mesozoic magnetic anomalies in the Perth Abyssal Plain
Geochemistry, Geophysics, Geosystems – Global sediment thickness dataset updated for the Australian-Antarctic Southern Ocean
Whittaker, J. M., Goncharov, A., Williams, S. E., Müller, R. D., & Leitchenkov, G. (2013). Global sediment thickness data set updated for the Australian‐Antarctic Southern Ocean. Geochemistry, Geophysics, Geosystems, 14(8), 3297-3305. doi:10.1002/ggge.20181. Global sediment thickness data set updated for the Australian‐Antarctic Southern Ocean
Total sediment thickness of the World’s Oceans & Marginal Seas, version 2
This update replaces the original Total Sediment Thickness of the World’s Oceans & Marginal Seas (Divins, 2003).
Citation
Whittaker, J. M., Goncharov, A., Williams, S. E., Müller, R. D., & Leitchenkov, G. (2013). Global sediment thickness data set updated for the Australian‐Antarctic Southern Ocean. Geochemistry, Geophysics, Geosystems, 14(8), 3297-3305. doi: 10.1002/ggge.20181.
Summary
NGDC’s global ocean sediment thickness grid (Divins, 2003) has been updated for the Australian-Antarctic region (60°-155°E, 30°-70°S). New seismic reflection and refraction data have been used to add detail to the conjugate Australian and Antarctic margins and intervening ocean floor where previously regional sediment thickness patterns were poorly known. … Read more…
Eos – Obituary: Sandy Island (1876-2012)
Seton, M., Williams, S., Zahirovic, S., & Micklethwaite, S. (2013). Obituary: Sandy Island (1876–2012). Eos, Transactions American Geophysical Union, 94(15), 141-142. DOI: 10.1002/2013EO150001. Obituary: Sandy Island (1876–2012)
Dr Simon Williams and co-PIs awarded 5 weeks ship time
Congratulations to Simon Williams and co-PIs, awarded 5-weeks of ship time on Australia’s new Marine National Facility the vessel RV Investigator in Oct-Nov, 2014. This expedition will return to the western edge of the survey the Gulden Draak Knoll, a micro-continent at the western edge of the Perth Abyssal Plain. The aim is to collect … Read more…
Geochemistry, Geophysics, Geosystems – Revised tectonic evolution of the Eastern Indian Ocean
Whittaker, J. M., Williams, S. E., & Müller, R. D. (2013). Revised tectonic evolution of the Eastern Indian Ocean. Geochemistry, Geophysics, Geosystems, 14(6), 1891-1909. doi:10.1002/ggge.20120. Revised tectonic evolution of the Eastern Indian Ocean
Eastern Australasian Basins Symposium IV – Crustal velocity and sediment thickness asymmetries along and between the conjugate Australian-Antarctic margins
Whittaker, J. M., Goncharov, A., Williams, S. E., & Müller, R. D. (2012). Crustal velocity and sediment thickness asymmetries along and between the conjugate Australian-Antarctic margins. Mares, T.(Ed). Download the paper – pdf
Eastern Australasian Basins Symposium IV – Full-fit reconstructions of the southern Australian Margin and Antarctica – implications for correlating geology between Australia and Antarctica
Williams, S. E., Whittaker, J. M., & Müller, R. D. (2012). Full-fit reconstructions of the southern Australian margin and Antarctica–implications for correlating geology between Australia and Antarctica. In Proceedings of the Eastern Australasian Basins Symposium IV, Brisbane Qld (unpubl.). Download the paper – pdf
6th eResearch Australasia Conference – Application of open-source software and high-resolution geophysical images to explore the plate tectonic evolution of Australia
Williams, S., Musgrave, R., & Müller, R. D. Application of open-source software and high-resolution geophysical images to explore the plate tectonic evolution of Australia. 6th eResearch Australasia Conference, Sydney, 28 Oct-1 Nov 2012. Download the paper – pdf
6th eResearch Australasia Conference – Evolution of Earth’s topography from models of global mantle flow and lithospheric deformation
Flament, N., Gurnis, M., Williams, S.E., Seton, M. and Müller, R.D., (2012). Evolution of Earth’s topography from models of global mantle flow and lithospheric deformation, 6th eResearch Australasia Conference , Sydney, 28 Oct-1 Nov 2012. Download the paper – pdf
An open-source software environment for visualizing and refining plate tectonic reconstructions using high-resolution geological and geophysical data sets
We describe a powerful method to explore spatio-temporal relationships within geological and geophysical data sets by analyzing the data within the context of tectonic reconstructions. GPlates is part of a new generation of plate reconstruction software that incorporates functionality familiar from GIS software with the added dimension of geological time. Here we use GPlates to reconstruct geological terranes, geophysical grids, and paleomagnetic data within alternative tectonic models of the assembly of Western Australia and the configuration of Rodinia. With the ability to rapidly visualize a diverse range of geological and geophysical constraints within different reconstructions, users can easily investigate the implications of different tectonic models for reconciling a variety of observations and make more informed choices between different models and data. … Read more…
GSA Today – An open-source software environment for visualizing and refining plate tectonic reconstructions using high resolution geological and geophysical data sets
Williams, S. E., Müller, R. D., Landgrebe, T. C., & Whittaker, J. M. (2012). An open-source software environment for visualizing and refining plate tectonic reconstructions using high-resolution geological and geophysical data sets.GSA Today, 22(4/5), 4-9. doi:10.1130/GSATG139A.1. Download the paper – pdf
EarthByte to attend AGU 2011
EarthByte group members Dietmar Müller, Adriana Dutkiewicz, Nicolas Flament, Leonardo Quevedo, Maria Seton, Simon Williams, Nathaniel Butterworth, Kayla Maloney and Kara Matthews are attending the AGU Fall Meeting 2011 in San Francisco, USA from 5-9 December, 2011. Click here for more details about the AGU Fall Meeting
EarthByte members successfully seek STEPs funding
Simon Williams, Christian Heine, Leonardo Quevedo and Dietmar Müller were successful in a University of Sydney STEPs teaching enhancement program funding starting next year which will go towards the development of field-based geophysical data acquisition practicals for 3rd year students.
EarthByte attends EGU 2011
Post-docs Nicolas Flament, Christian Heine, Jo Whittaker and Simon Williams, along with students Ana Gibbons, Charmaine Thomas and Luke Mondy presented their research at the EGU General Assembly in Vienna, which this year attracted 10,725 scientists geoscientists. Christian Heine and Ana Gibbons co-chaired the session “Unresolved problems in plate tectonics: kinematic reconstructions, plate driving forces, … Read more…
IODP workshop on Indian Ocean Drilling scheduled for late 2011
An Integrated Ocean Drilling (IODP) workshop on Indian Ocean Drilling to be held in late 2011 in Goa, India has just been approved, funded by $33,000 from IODP, and supported by the Australian IODP Office, which plans to send 15 Australians and Kiwis to the meeting, including EarthByte’s Dietmar Müller, and Stephen Gallagher (UMelb), Neville Exon (ANU), Richard Arculus (ANU), Mike Coffin (Tasmania) and Richard Wysoczanski (NZ, NIWA). The workshop is timed to suit an April 2012 drilling proposal submission deadline. … Read more…
Full-fit, palinspastic reconstruction of the conjugate Australian-Antarctic margins
Despite decades of study the pre-rift configuration and early rifting history between Australia and Antarctica is not well established. The plate boundary system during the Cretaceous includes the evolving Kerguelen-Broken Ridge Large Igneous Province in the west as well as the conjugate passive and transform margin segments of the Australian and Antarctic continents. … Read more…
EarthByte presents at AGU
Ana Gibbons, Kayla Maloney, Grace Shephard, Jo Whittaker & Simon Williams presented at the AGU Fall Meeting in San Francisco, California.