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Scientists just revealed the most detailed geological model of Earth’s past 100 million years
The Conversation   02 March 2023   World  
Rivers are one of the main carriers of sediment into Earth’s oceans, with millions of tonnes deposited over time. Ron Whitaker/Unsplash
<p>Earth&rsquo;s surface is the &ldquo;living skin&rdquo; of our planet &ndash; it connects the physical, chemical, and biological systems. Over geological time, landscapes change as this surface evolves, regulating the carbon cycle and nutrient circulation ...
Mars: we may have solved the mystery of how its landslides form
The Conversation   02 December 2019  
Cerberus Fossae, with steep slopes having active landslides. NASA
<p>Some landslides on Mars seem to defy an important law of physics. &ldquo;Long, runout landslides&rdquo; are formed by huge volumes of rock and soil moving downslope, largely due to the force of gravity. But their power is hard to account for. With volumes ...
The science of landslides, and why they’re so devastating in PNG
A 2012 landslide in the southern highlands of Papua New Guinea. dfataustralianaid/flickr, CC BY
<p>A magnitude 7.5 earthquake struck the Southern Highlands region of Papua New Guinea on February 25, 2018. This was followed by a series of aftershocks, producing widespread landslides that have killed dozens and injured hundreds. The same landslides have ...
Filed under: Natural Hazards
What biological clocks and geological rocks tell us about life in space
The Conversation   12 July 2017   World  
The break-up of the supercontinent Pangaea over the past 180 million years (Ma). Figure from McIntyre et al 2017, Author provided
<p>One of the first geological lessons we learn is that continents are constantly moving. The evidence of these plate tectonic movements is written in the rocks. But the rocks only tell us half of the story. The other half is contained in the evolutionary ...
Are natural disasters on the rise?
The Conversation   24 March 2015   Austria  
destruction after Cyclone Pam
<p>Natural disasters are becoming more frequent, with more people with less money exposed to a greater number of hazards. Cyclone Lam, Pam and now Nathan &ndash; natural disasters have filled our news in recent weeks. They wreak havoc in poor and vulnerable ...
Filed under: Natural Hazards