We know more about the topography of Mars than that of Earth because 70 per cent of our planet is covered by water.
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→
Researchers in the School of Geosciences at the University of Sydney have developed a computer package that lets scientists record and study the Earth over geological time.
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→
CSIRO is spearheading a $9 million-a-year project to help ease Australia’s current water management crisis.
A new national Water Resources Observation Network (WRON), set up by CSIRO through the Water for a Healthy Country Flagship, is aiming to improve water management, and make a 20 per cent cost saving in the process.
Predictive mineral exploration by Australian scientists has given local mining companies a powerful edge in the hotly competitive world gold market. Instead of pouring money – and lots of it – into the ground in the quest for undiscovered mineral deposits: often coming up empty.
The extreme weather conditions that can turn an already dangerous bushfire into an explosive firestorm can now be better predicted, thanks to the work of a 30-year veteran of the Bureau of Meteorology.
The strategic planning of open pit mining projects that span several decades is critical to achieving maximum project value.
To address this issue, BHP Billiton Global Technology has developed a mine planning optimisation software tool called Blasor™. By using optimal mine planning software, strategic planners can now determine ultimate pit sizes and pit development plans that deliver maximum value over the life of the mine.
Every new technology brings opportunities and threats. Nanotechnology is no exception. It has the potential to create new materials that will dramatically improve drug delivery, medical diagnostics, clean and efficient energy, computing and more. But nanoparticles could also have significant health and environmental impacts.