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Using zircon crystals, researchers have discovered the route of a massive ancient river that could help find new reservoirs of fossil fuels and suggest how modern rivers might change over time.
More than two thirds of the worlds’ major cities are located in coastal deltas. How they change over time can impact communities that live around them.
Continue reading Ghostly traces of massive ancient river revealedIndonesian and Australian scientists are part of a team searching for buried treasure: using the movement of tectonic plates to predict when and where giant deposits of gold and copper should form, while building an understanding of the conditions these deposits are created in.
The project, which was begun in 2013 and due for completion in 2016, is using Southeast Asia as a ‘natural laboratory’ to explore these natural processes and their products. Knowing when and how deposits formed can help us understand geological processes occurring today.
The Australian Academy of Science recognised five individuals for their career achievements in 2013.
The piece of this jigsaw she is now working on centres on two underwater plateaux, the Batavia and Gulden Draak Knolls, towering about 3000 metres above the Perth Abyssal Plain (PAP), which is around 1600 kilometres off the coast of Geraldton in Western Australia. In November 2011, Jo’s team mapped and sampled rocks from both knolls. Based on the evidence so far, Jo says, it looks like they split from the margins of the moving Indian Plate about 100 million years ago.
Continue reading How Australia and India broke up—100 million years ago
Now University of Sydney PhD student Kara Matthews has used satellite data and GPlates, a computer package developed at the University, to create a complete digital map of the many geological features of the seafloor.
Fracture zones—the orange lines in the accompanying image—are deep linear scars on the seafloor that extend perpendicular to the boundaries where tectonic plates are moving apart, revealing up to 150 million years of plate movement. They are accompanied by huge ridges on the seafloor, rising up to 2 km above the abyssal plains, and valleys as deep as 8 km below sea level.
Continue reading Mapping the seafloor from space
Their GPlates software, which they describe as “Google Earth with a time-slider,” contains powerful tools for modelling geological processes. Yet it is simple enough to use in schools or at home, and is freely available. By combining data on continental motion, fossils and sediments, for example, scientists can analyse changes in geography, ocean currents and climate over geological time.
Continue reading Slide back in time and see the Himalayas form
Prof Ian Frazer, Prof Alan Cowman, Prof Mark Randolph and Dr Patrick Tam join 40 other scientists to be elected to the Royal Society in 2011, which celebrated its 350th anniversary last year.
Continue reading Australian scientists elected to Royal Society
The CRC Programme has contributed funding towards the most comprehensive pilot project in the world to commercially test the storage and monitoring of concentrated carbon dioxide deep underground in geological formations, undertaken by the CRC for Greenhouse Gas Technologies.
Continue reading The Cooperative Research Centres (CRC) Programme
Researchers at Geoscience Australia have unravelled the development of a unique seafloor community thriving in complete darkness below the giant ice sheets 
Today it is home to animals such as sponges and bryozoans fed by plankton carried in on the current. Dr Alix Post studied shell fossils within core samples where she unexpectedly found evidence of these isolated ecosystems.
