Journal of Geodynamics – Geological, tomographic, kinematic and geodynamic constraints on the dynamics of sinking slabs

Butterworth, N. P., Talsma, A. S., Müller, R. D., Seton, M., Bunge, H. P., Schuberth, B. S. A., … & Heine, C. (2014). Geological, tomographic, kinematic and geodynamic constraints on the dynamics of sinking slabs. Journal of Geodynamics, 73, 1-13. doi: 10.1016/j.jog.2013.10.006. Geological, tomographic, kinematic and geodynamic constraints on the dynamics of sinking slabs Supplementary material

Seawater chemistry driven by supercontinent assembly, breakup and dispersal, Müller et al. (2013)

Muller etal Fig1 - Seawater Chemistry Driven by Supercontinental AssemblyCitation
Müller, R. D., Dutkiewicz, A., Seton, M. and Gaina, C. (2013). Seawater chemistry driven by supercontinent assembly, break-up and dispersal Geology. doi 10.1130/G34405.1.

Summary
Global oceans are known to have alternated between aragonite and calcite seas. These oscillations reflect changes in the Mg/Ca ratio of seawater, which control biomineralisation and the composition of marine carbonates and are thought to be caused by the time dependence of crustal accretion at mid-ocean ridge crests and associated high temperature mid-ocean ridge brine flux. Here we use global ocean basin reconstructions to demonstrate that these fluctuations are instead caused by the gradual growth and destruction of mid-ocean ridges and their relatively cool flanks during long-term tectonic cycles thus linking ocean chemistry to off-ridge low temperature hydrothermal flux. Early Jurassic aragonite seas were a consequence of supercontinent stability and minima in mid-ocean ridge length and basalt alteration. The break-up of Pangaea led to a gradual doubling in ridge length and a 50% increase in hydrothermal flux mainly through an enormous increase in ridge flank area, leading to enhanced alteration of basalt, lowered seawater Mg/Ca ratios and marine hypercalcification from 140 to 35 Ma. … Read more…

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Earth and Planetary Science Letters – Convergence of tectonic reconstructions and mantle convection models for significant fluctuations in seafloor spreading

Coltice, N., Seton, M., Rolf, T., Müller, R. D., & Tackley, P. J. (2013). Convergence of tectonic reconstructions and mantle convection models for significant fluctuations in seafloor spreading. Earth and Planetary Science Letters, 383, 92-100. doi:10.1016/j.epsl.2013.09.032. Convergence of tectonic reconstructions and mantle convection models for significant fluctuations in seafloor spreading

Geology – Seawater chemistry driven by supercontinent assembly, breakup, and dispersal

Müller, R. D., Dutkiewicz, A., Seton, M., & Gaina, C. (2013). Seawater chemistry driven by supercontinent assembly, breakup, and dispersal. Geology, 41(8), 907-910. doi: 10.1130/G34405.1. Seawater chemistry driven by supercontinent assembly, breakup, and dispersal

Earth Science Reviews – The tectonic evolution of the Arctic since Pangaea breakup: Integrating constraints from surface geology and geophysics with mantle structure

Shephard, G. E., Müller, R. D., & Seton, M. (2013). The tectonic evolution of the Arctic since Pangea breakup: Integrating constraints from surface geology and geophysics with mantle structure. Earth-Science Reviews, 124, 148-183. doi:10.1.1016/j.earscirev.2013.05.012. The tectonic evolution of the Arctic since Pangea breakup: Integrating constraints from surface geology and geophysics with mantle structure

Earth and Planetary Science Letters – Organisation of the tectonic plates in the last 200 Myr

Morra, G., Seton, M., Quevedo, L., & Müller, R. D. (2013). Organization of the tectonic plates in the last 200 Myr. Earth and Planetary Science Letters, 373, 93-101. doi:10.1016/j.epsl.2013.04.020. Organization of the tectonic plates in the last 200 Myr

The tectonic evolution of the Arctic since Pangea breakup: Integrating constraints from surface geology and geophysics with mantle structure

Shephard Arctic IconCitation
Shephard, G. E., Müller, R. D., & Seton, M. (2013). The tectonic evolution of the Arctic since Pangea breakup: Integrating constraints from surface geology and geophysics with mantle structure. Earth-Science Reviews, 124, 148-183. doi:10.1016/j.earscirev.2013.05.012

Summary
The tectonic evolution of the circum-Arctic, including the northern Pacific, Siberian and North American margins, since the Jurassic has been punctuated by the opening and closing of ocean basins, the accretion of autochthonous and allochthonous terranes and associated deformation. This complexity is expressed in the uncertainty of plate tectonic models of the region, with the time-dependent configurations and kinematic history remaining poorly understood. … Read more…

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Towards community-driven paleogeographic reconstructions: integrating open-access paleogeographic and paleobiology data with plate tectonics

PaleobioSummary
A variety of paleogeographic reconstructions have been published, with applications ranging from paleoclimate, ocean circulation and faunal radiation models to resource exploration; yet their uncertainties remain difficult to assess as they are generally presented as low-resolution static maps. We present a methodology for ground-truthing the digital Palaeogeographic Atlas of Australia by linking the GPlates plate reconstruction tool to the global Paleobiology Database and a Phanerozoic plate motion model.

We develop a spatio-temporal data mining workflow to validate the Phanerozoic Palaeogeographic Atlas of Australia with paleoenvironments derived from fossil data. … Read more…

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Biogeosciences – Towards community-driven paleogeographic reconstructions: integrating open-access paleogeographic and paleobiology data with plate tectonics

Wright, N., Zahirovic, S., Müller, R. D., & Seton, M. (2013). Towards community-driven paleogeographic reconstructions: integrating open-access paleogeographic and paleobiology data with plate tectonics. Biogeosciences, 10(3), 1529-1541. doi:10.5194/bg-10-1529-2013. Towards community-driven paleogeographic reconstructions: integrating open-access paleogeographic and paleobiology data with plate tectonics

Global continental and ocean basin reconstructions since 200 Ma

Plate reconstruction 200Ma-1Global plate motion models provide a spatial and temporal framework for geological data and have been effective tools for exploring processes occurring at the earth’s surface. However, published models either have insufficient temporal coverage or fail to treat tectonic plates in a self-consistent manner. They usually consider the motions of selected features attached to tectonic plates, such as continents, but generally do not explicitly account for the continuous evolution of plate boundaries through time. … Read more…

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Southern Surveyor cruise takes the media by storm

Maria Seton and her team are back from the Southern Surveyor cruise in the Coral Sea, which was investigating the tectonic framework for the easternmost Coral Sea and northern extent of the Lord Howe hotspot for 25 days. The cruise has been featured on Radio Australia, which was then picked up by ABC News, Sydney … Read more…

Eastern Australasian Basins Symposium IV – Late Cretaceous to present-day opening of the southwest Pacific constrained by numerical models and seismic tomography

Matthews, K. J., Seton, M., Flament, N., & Müller, R. D. (2012). Late Cretaceous to present-day opening of the southwest Pacific constrained by numerical models and seismic tomography. In Eastern Australasian Basins Symposium EABS IV: Exploration—Driving Future Energy Solutions, Petroleum Exploration Society of Australia (pp. 105-119). Download the paper – pdf

Eastern Australasian Basins Symposium IV – Subduction history in the Melanesian borderlands region, SW Pacific

Seton, M., Flament, N., & Müller, R. D. (2012). Subduction history in the Melanesian Borderlands region, SW Pacific. In: Mares, T. (Ed), 2012. Eastern Australasian Basins Symposium IV. Petroleum Exploration Society of Australia, Special Publication, 1-12. Download the paper – pdf

Earth-Science Reviews – Global continental and ocean basin reconstructions since 200 Ma

Seton, M., Müller, R. D., Zahirovic, S., Gaina, C., Torsvik, T., Shephard, G., … & Chandler, M. (2012). Global continental and ocean basin reconstructions since 200Ma. Earth-Science Reviews, 113(3), 212-270. doi:10.1016/j.earscirev.2012.03.002. 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

Earth and Planetary Science Letters – Reconstructing Ontong Java Nui: Implications for Pacific absolute plate motion, hotspot drift and true polar wander

Chandler, M. T., Wessel, P., Taylor, B., Seton, M., Kim, S. S., & Hyeong, K. (2012). Reconstructing Ontong Java Nui: Implications for Pacific absolute plate motion, hotspot drift and true polar wander. Earth and Planetary Science Letters, 331, 140-151. doi:10.1016/j.epsl.2012.03.017. Download the paper – pdf

Insights on the kinematics of the India-Eurasia collision from global geodynamic models

Image 002We present the input plate motion models and results from the study by Zahirovic et al. (2012) on the India-Eurasia collision using linked kinematic and geodynamic models.

Two end-member scenarios of the India-Eurasia collision were tested. The conventional model invokes long-lived Andean-style subduction along southern Eurasia until continental collision between a maximum extent Greater India and Lhasa at ~60 Ma. … Read more…

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G-Cubed – Insights on the kinematics of the India-Eurasia collision from global geodynamic models

Zahirovic, S., Müller, R. D., Seton, M., Flament, N., Gurnis, M., & Whittaker, J. (2012). Insights on the kinematics of the India‐Eurasia collision from global geodynamic models. Geochemistry, Geophysics, Geosystems, 13(4). doi:10.1029/2011GC003883. Download the paper – pdf