Total sediment thickness of the World’s Oceans & Marginal Seas, version 2

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Sedthickv2 256x188This 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…

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GPlates legacy data and documentation

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GPlates legacy image*Superceded (older) tutorials for earlier GPlates versions can still be accessed here

GPlates-compatible Data Files – Features
Below is a list of GPlates-compatible data files that can be loaded seamlessly in GPlates. The feature data are available as .gpml (GPlates Markup Language), .dat (PLATES4), .shp (ESRI Shapefile) and .xy (long, lat with header record) formats.

Data by the EarthByte Group are licensed under a Creative Commons Attribution 3.0 Unported License. When using GPlates and the sample data to make figures for publications, we recommend citing the original data sources as indicated below.

For users of GPlates 1.5, you can find the complete archived Sample Data from this link.

… Read more…

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Australian Journal of Earth Sciences – Towards a predictive model for opal exploration using a spatio-temporal data mining approach

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Merdith, A. S., Landgrebe, T. C., Dutkiewicz, A., & Müller, R. D. (2013). Towards a predictive model for opal exploration using a spatio-temporal data mining approach. Australian Journal of Earth Sciences, 60(2), 217-229. http://dx.doi.org/10.1080/08120099.2012.754793. Towards a predictive model for opal exploration using a spatio-temporal data mining approach Supplementary data 

Dr Simon Williams and co-PIs awarded 5 weeks ship time

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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…

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

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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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From data mining to opal mining

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Opal NobbyDocuments
AJES Paper
CG Paper

Opal is Australia’s national gemstone, however most significant opal discoveries were made in the early 1900’s – more than 100 years ago – until recently. Currently there is no formal exploration model for opal, meaning there are no widely accepted concepts or methodologies available to suggest where new opal fields may be found. … Read more…

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

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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

Geochemistry, Geophysics, Geosystems – Revised tectonic evolution of the Eastern Indian Ocean

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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

Talented Student Program 2013

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TSP Showcase 2013 Mod Group PhotoSemester 1 2013, University of Sydney – Australia

Theme: The magic and utility of the invisible world

Geo-theme: Windows into the deep Earth

In semester 1 2013 the EarthByte Group hosted a team of students from the Talented Student Program (TSP), targeted at the top performing first year students in the Faculty of Science at the University of Sydney. The students investigated windows into the deep Earth, that is, they unravelled the effect of ridge subduction events on mantle structure. … Read more…

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Global continental and ocean basin reconstructions since 200 Ma

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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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Journal of Geophysical Research – The breakup of East Gondwana: assimilating constraints from Cretaceous ocean basins around India into a best-fit tectonic model

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Gibbons, A. D., Whittaker, J. M., & Müller, R. D. (2013). The breakup of East Gondwana: Assimilating constraints from Cretaceous ocean basins around India into a best‐fit tectonic model. Journal of Geophysical Research: Solid Earth, 118(3), 808-822. doi:10.1002/jgrb.50079. Download the paper – pdf Access supplementary materials here

Computers & Geoscience – Relationships between palaeogeography and opal occurrence in Australia: a data-mining approach

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Landgrebe, T. C. W., Merdith, A., Dutkiewicz, A., & Müller, R. D. (2013). Relationships between palaeogeography and opal occurrence in Australia: A data-mining approach. Computers & Geosciences, 56, 76-82. http://dx.doi.org/10.1016/j.cageo.2013.02.002. Download the paper – pdf

Computers & Geoscience – Relationships between palaeogeography and opal occurrence in Australia: a data-mining approach

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Landgrebe, T. C. W., Merdith, A., Dutkiewicz, A., & Müller, R. D. (2013). Relationships between palaeogeography and opal occurrence in Australia: A data-mining approach. Computers & Geosciences, 56, 76-82. http://dx.doi.org/10.1016/j.cageo.2013.02.002. Download the paper – pdf

Gondwana to Asia 2012 GPlates short course

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Date and time: 2012 November 21, 9am-1pm Venue: Mawson Building, School of Earth and Environmental Sciences, The University of Adelaide, Adelaide, South Australia, Australia Description: An introductory course to GPlates at the International Association for Gondwana Research Annual Convention and 9th International Symposium on Gondwana to Asia.

Michael Chin wins NeCTAR/ANDS #nadojo competition for GPlates

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Congratulations to Michael Chin from the Earthbyte group on winning this year’s NeCTAR/ANDS #nadojo competition. Michael demonstrated a new web-enabled GPlates prototype on the NECTAR/ANDS eResearch computing infrastructure, porting some of the powerful plate reconstruction capabilities to the web. The new GPlates competed with several other candidates from universities and research institutes in Australia, and … Read more…

Geoscientific Instrumentation Methods and Data Systems – The GPlates geological information model and markup language

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Qin, X., Müller, R. D., Cannon, J., Landgrebe, T. C. W., Heine, C., Watson, R. J., & Turner, M. (2012). The GPlates geological information model and markup language. Geosci. Instrum. Methods Data Syst. Discuss, 2, 365-428. doi:10.5194/gi-1-111-2012. Download the paper – pdf

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

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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 – Developing a consistent sequence stratigraphy for the Wilkes Land and Great Australian Bight margins

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Lane, H., Müller, R. D., Totterdell, J. M., & Whittaker, J. (2012). Developing a consistent sequence stratigraphy for the Wilkes Land and Great Australian Bight margins. In Eastern Australasian Basins Symposium IV: Brisbane, Queensland. Download the paper – pdf