Prof Dietmar Müller – Page 8

Big data reveals geology of world’s ocean floor

6 September, 201510 August, 2015 by Michael Chin

A team led by the University of Sydney School of Geosciences has created the first digital globe of seafloor sediments.

Ocean sediments cover 70% of our planet’s surface, forming the substrate for the largest ecosystem on Earth and its largest carbon reservoir – but the most recent map of seafloor geology was drawn by hand over 40 years ago, at the dawn of modern ocean exploration.

That’s about to change. In a gargantuan effort Adriana Dutkiewicz and her colleagues carefully analysed and categorised 15,000 seafloor sediment samples to reveal the nature of sedimentary blankets over ocean ridges, seamounts and the vast abyssal plains. She teamed up with big data experts to find the best way to use modern computer algorithms to turn the vast sea of point observations into a continuous digital map. … Read more…

Big Data Knowledge Discovery

15 August, 20169 August, 2015 by Michael Chin

Big Data Knowledge Discovery is an interdisciplinary research initiative that focuses on the scientific challenges and opportunities presented by the use of the new techniques of data science applied in the natural sciences. This research initiative brings together world class discipline leaders in the data-intensive sciences of Geo Sciences, Life Sciences and Physical Sciences with … Read more…

Geology – Census of seafloor sediments in the world’s ocean

16 December, 20155 August, 2015 by Michael Chin

Dutkiewicz, A., Müller, R. D., O’Callaghan, S., & Jónasson, H. (2015). Census of seafloor sediments in the world’s ocean. Geology, G36883-1. doi: 10.1130/G36883.1. Census of seafloor sediments in the world’s ocean

Geology – Census of seafloor sediments in the world's ocean

5 August, 2015 by Ruken

India – Eurasia collision paper makes “Most Downloaded” list

6 September, 201527 July, 2015 by Michael Chin

Congratulations to Dr Ana Gibbons, Dr Sabin Zahirovic, Dr Joanne Whittaker and Dr Yatheesh Vadakkeyakath, whose paper “A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys” is now the third-most downloaded paper on Gondwana Research over the last 90 days!

Most Downloaded Gondwana Research Articles

The paper already has 3 citations (not bad for a paper that just came out this month).

Citation
Gibbons, A. D., Zahirovic, S., Müller, R. D., Whittaker, J. M., & Yatheesh, V. (2015). A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys. Gondwana Research. doi: 10.1016/j.gr.2015.01.001.

India – Eurasia collision paper makes "Most Downloaded" list

27 July, 2015 by Ruken

Most Downloaded Gondwana Research Articles

The paper already has 3 citations (not bad for a paper that just came out this month).

Earth’s climate throughout the Phanerozoic

30 November, 201526 July, 2015 by Michael Chin

Project Summary
EarthByte is involved in a series of projects aimed at understanding and modeling Earth’s climate throughout the Phanerozoic. Some of these projects include:

Future Fellowship of Maria Seton on “Oceanic gateways: a primary control on global climate change?”
Basin GENESIS Hub activities, related to the effect of the mantle, crustal deformation, erosion and sedimentary processes on sedimentary basins
ATOM – a coupled atmospheric-ocean circulation code jointly developed by Prof. Roger Grundmann and EarthByte.

EarthByte’s expertise in tectonics, geodynamics and surface process modeling is enhanced by close collaborations with leading palaeoclimate modellers and geochemical oceanographers. … Read more…

Earth's climate throughout the Phanerozoic

26 July, 2015 by Ruken

Project Summary
EarthByte is involved in a series of projects aimed at understanding and modeling Earth’s climate throughout the Phanerozoic. Some of these projects include:

Future Fellowship of Maria Seton on “Oceanic gateways: a primary control on global climate change?”
Basin GENESIS Hub activities, related to the effect of the mantle, crustal deformation, erosion and sedimentary processes on sedimentary basins
ATOM – a coupled atmospheric-ocean circulation code jointly developed by Prof. Roger Grundmann and EarthByte.

Gondwana Research – The tectonic stress field evolution of India since the Oligocene

16 December, 201525 July, 2015 by Michael Chin

Müller, R. D., Yatheesh, V., & Shuhail, M. (2014). The tectonic stress field evolution of India since the Oligocene. Gondwana Research. doi:10.1016/j.gr.2014.05.008. The tectonic stress field evolution of India since the Oligocene Download accompanying data – zip file

Gondwana Research – A tectonic model reconciling evidence for the collision between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys

16 December, 20157 July, 2015 by Michael Chin

Gibbons, A. D., Zahirovic, S., Müller, R. D., Whittaker, J. M., & Yatheesh, V. (2015). A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys. Gondwana Research. doi: 10.1016/j.gr.2015.01.001. A tectonic model reconciling evidence for the collisions between India, Eurasia and intra-oceanic arcs of the central-eastern Tethys

Encyclopaedia of Marine Geosciences – Plate Motion

16 December, 20157 July, 2015 by Michael Chin

Müller, R. D., & Seton, M. (2014). Plate Motion. In J. Harff, M. Meschede, S. Petersen & J. Thiede (Eds.), Encyclopedia of Marine Geosciences (pp. 1-10): Springer Netherlands. Plate Motion

Encyclopaedia of Marine Geosciences – Paleophysiography of Ocean Basins

16 December, 20157 July, 2015 by Michael Chin

Müller, R. D., & Seton, M. (2015). Paleophysiography of Ocean Basins. In J. Harff, M. Meschede, S. Petersen & J. Thiede (Eds.), Encyclopedia of Marine Geosciences (pp. 1-15): Springer Netherlands. Paleophysiography of Ocean Basins

Treatise on Geophysics – Plate Tectonics

16 December, 20155 July, 2015 by Michael Chin

Wessel, P. & Müller, R. D. (2015). Plate Tectonics. Treatise of Geophysics, 2(6), 45-93. doi: 10.1016/B978-0-444-53802-4-00111-1. Plate Tectonics

EarthByte joins ACTER

17 October, 20153 July, 2015 by Michael Chin

Recently, EarthByte joined the Australia-China Joint Research Centre for Tectonics and Earth Resources (ACTER). The joint research centre is led by the Institute for Geoscience Research at Curtin University and the Institute of Geology and Geophysics of the Chinese Academy of Sciences, with involvement of Australian and Chinese universities and industry partners. The aim of the centre is to promote joint research activities, the exchange of staff and students, and to foster long-term mutually-beneficial collaboration between Australian and Chinese research groups. … Read more…

Geochemistry, Geophysics, Geosystems – Semi-automatic fracture zone tracking

25 March, 201923 June, 2015 by Michael Chin

Wessel, P., Matthews, K. J., Müller, R. D., Mazzoni, A., Whittaker, J. M., Myhill, R., & Chandler, M. T. (2015). Semi-automatic fracture zone tracking. Geochemistry, Geophysics, Geosystems. doi: 10.1002/2015GC005853. Semi-automatic fracture zone tracking This paper includes an update to the global seafloor tectonic fabric data set by Matthews et al. (JGR, 2011). Based on the vertical gravity … Read more…

Dietmar Müller attends Australian open research data showcase in Canberra

17 October, 201519 June, 2015 by Michael Chin

Today Prof Dietmar Müller attended the Australian open research data showcase in Canberra. The showcase featured a variety of talks and discussions around the benefits and issues concerning open research data. It was an important milestone towards consolidating the Australian effort towards involving Universities and individual researchers in sharing their data.

A highlight was Ian Chubb’s presentation that pointed out that if you look at all papers published in the last 115 years, about 50% were either never cited or only cited once. The hope is that open access publications and associated open research data will improve these sorts of statistics. George Bernard Shaw was quoted by geologist Geoffrey Boulton (Univ. Edinburgh) as pointing out: “If you have an apple and I have an apple and we exchange these apples then you and I will still each have one apple. … Read more…

Reconstructed topography of Australia

10 August, 201524 May, 2015 by Michael Chin

Citation Heine, C., Müller, R. D., Steinberger, B. and DiCaprio, L., 2010, Integrating deep Earth dynamics in paleogeographic reconstructions of Australia, Tectonophysics, 483, 135-150. View other EarthByte animations on our YouTube channel

Plate reconstruction with paleo-bathymetry of the ocean basins

9 August, 201524 May, 2015 by Michael Chin

Reconstructions of tectonic plates and oceanic paleodepth (i.e. paleobathymetry).Citation Müller, R., M. Sdrolias, C. Gaina, and W. Roest (2008). Age, spreading rates, and spreading asymmetry of the world’s ocean crust, Geochemistry, Geophysics, Geosystems, 9(4), 19, Q04006. doi: 10.1029/2007GC001743.View the full playlist on our EarthByte YouTube channel

Geodynamics of arc-continent collisions

9 August, 201524 May, 2015 by Michael Chin

Courtesy of Prof Louis Moresi, created with the ellipsis software.Citation O’Neill, C., Moresi, L., Müller, R.D., Albert, R. and Dufour, F., 2006, Ellipsis 3D: a particle-in-cell finite element hybrid code for modelling mantle convection and lithospheric deformation, Computers and Geosciences, 32, 1769-1779.View other EarthByte animations on our YouTube channel

Dynamic topography of eastern Australia in the Cretaceous

9 August, 201524 May, 2015 by Michael Chin

Citation Gurnis, M., R. D. Müller, and L. Moresi (1998), Cretaceous vertical motion of Australia and the Australian Antarctic discordance, Science, 279(5356), 1499-1504.View other EarthByte animations on our YouTube channel

Mantle plumes in global convection models

9 August, 201517 May, 2015 by Michael Chin

Citation Hassan, R., N. Flament, M. Gurnis, D. J. Bower, and D. Müller (2015), Provenance of plumes in global convection models, Geochemistry, Geophysics, Geosystems.View other EarthByte animations on our YouTube channel

Nature Geoscience – Long-term interaction between mid-ocean ridges and mantle plumes

15 April, 202117 May, 2015 by Michael Chin

Whittaker, J. M., Afonso, J. C., Masterton, S., Müller, R. D., Wessel, P., Williams, S. E., & Seton, M. (2015). Long-term interaction between mid-ocean ridges and mantle plumes. Nature Geoscience, 8(6), 479-483. doi: http://dx.doi.org/10.1038/ngeo2437. Summary Plate tectonic motions are commonly considered to be driven by slab pull at subduction zones and ridge push at mid-ocean … Read more…

Long-term interaction between mid-ocean ridges and mantle plumes

3 July, 201917 May, 2015 by Michael Chin

Citation
Whittaker, J. M., Afonso, J. C., Masterton, S., Müller, R. D., Wessel, P., Williams, S. E., & Seton, M. (2015). Long-term interaction between mid-ocean ridges and mantle plumes. Nature Geoscience, 8(6), 479-483.

Summary
Plate tectonic motions are commonly considered to be driven by slab pull at subduction zones and ridge push at mid-ocean ridges, with motion punctuated by plumes of hot material rising from the lower mantle. Within this model, the geometry and location of mid-ocean ridges are considered to be independent of lower-mantle dynamics, such as deeply sourced plumes that produce voluminous lava eruptions-termed large igneous provinces. Here we use a global plate model to reconstruct the locations of large igneous provinces relative to plumes and mid-ocean ridges at the time they formed. … Read more…

Geochemisty, Geophysics, Geosystems – Provenance of plumes in mantle convection models

16 December, 201516 May, 2015 by Michael Chin

Hassan, R., Flament, N., Gurnis, M., Bower, D. J., & Müller, D. (2015). Provenance of plumes in global convection models. Geochemistry, Geophysics, Geosystems. doi: 10.1002/2015GC005751. Provenance of plumes in global convection models

Geophysical Journal International – Absolute motion of Africa around Hawaii-Emperor bend time

16 December, 201515 May, 2015 by Michael Chin

Maher, S. M., Wessel, P., Müller, R. D., Williams, S. E., & Harada, Y. (2015). Absolute plate motion of Africa around Hawaii-Emperor bend time. Geophysical Journal International, 201(3), 1743-1764. doi: 10.1093/gji/ggv104. Absolute plate motion of Africa around Hawaii-Emperor bend time Download supplementary materials – zip file

Nature Geoscience – Deformation-related volcanism in the Pacific Ocean linked to the Hawaiin-Emperor bend

16 December, 201516 April, 2015 by Michael Chin

O’Connor, J. M., Hoernle, K., Müller, R. D., Morgan, J. P., Butterworth, N. P., Hauff, F., … & Stoffers, P. (2015). Deformation-related volcanism in the Pacific Ocean linked to the Hawaiian-Emperor bend. Nature Geoscience, 8(5), 393-397. doi: 10.1038/NGEO2416. Deformation-related volcanism in the Pacific Ocean linked to the Hawaiian–Emperor bend

GPlates course taught at EGU conference in Vienna

6 September, 201513 April, 2015 by kara

Prof Dietmar Müller, Dr Maria Seton and Dr Grace Shephard taught a GPlates course today at the European Geosciences Union (EGU) General Assembly in Vienna. The course was entitled ‘GPlates – make your own plate-tectonic reconstructions’.

Lord Howe Rise IODP workshop held at University of Sydney

26 July, 201510 April, 2015 by Michael Chin

Date: 2015 April 7-10 Venue: The University of Sydney Description: A science meeting at the University of Sydney was held to discuss details of the seven science themes in the Geoscience Australia (GA) – Japan Agency for Marine-Earth Science and Technology (JAMSTEC) initiated Lord Howe Rise IODP Pre-proposal, IODP proposal 871-Pre. The purpose of the meeting was to look … Read more…

Evaluating global paleoshoreline models for the Cretaceous and Cenozoic

4 February, 20193 April, 2015 by Michael Chin

Citation
Heine, C., Yeo, L. G., & Müller, R. D. (2015). Evaluating global paleoshoreline models for the Cretaceous and Cenozoic. Australian Journal of Earth Sciences, (ahead-of-print), 1-13., doi: 10.1080/08120099.2015.1018321.

Summary
Paleoshoreline maps represent the distribution of land and sea through geologic time. These compilations provide excellent proxies for evaluating the contributions non-tectonic vertical crustal motions, such as mantle convection-driven dynamic topography, to the flooding histories of continental platforms. Until now, such data have not been available as a globally coherent compilation. Here, we present and evaluate a set of Cretaceous and Cenozoic global shoreline data extracted from two independent published global paleogeographic atlases. … Read more…

Tectonic speed limits from plate kinematic reconstructions

25 October, 20151 April, 2015 by Michael Chin

Citation
Zahirovic, S., Müller, R. D., Seton, M., & Flament, N. (2015). Tectonic speed limits from plate kinematic reconstructions. Earth and Planetary Science Letters, 418, 40-52. doi:10.1016/j.epsl.2015.02.037.

Summary
The motion of plates and continents on the planet’s surface are a manifestation of long-term mantle convection and plate tectonics. Present-day plate velocities provide a snapshot of this ongoing process, and have been used to infer controlling factors on the speeds of plates and continents. However, present-day velocities do not capture plate behaviour over geologically representative periods of time. To address this shortcoming, we use a plate tectonic reconstruction approach to extract time-dependent plate velocities and geometries from which root mean square (RMS) velocities are computed, resulting in a median RMS plate speed of ~4 cm/yr over 200 Myr. … Read more…