Science News

category archive listing Category Archives: Geology

Ancient mineral shows early Earth climate tough on continents

A new analysis of ancient minerals called zircons suggests that a harsh climate may have scoured and possibly even destroyed the surface of the Earth’s earliest continents.
Zircons, the oldest known materials on Earth, offer a window in time back as far as 4.4 billion years ago, when the planet was a mere 150 million [...]

CSIRO scientist discovers natural ‘invisible’ gold

Nanoparticles of gold too small to be seen with the naked eye have been created in laboratories, but up until now, have never been seen in nature.
The search for these natural but ‘invisible’ nanoparticles is important. If they can be proved to exist, the knowledge will help give us a deeper understanding of how gold [...]

The Mystery of Mass Extinctions Is No Longer Murky

If you are curious about Earth’s periodic mass extinction events such as the sudden demise of the dinosaurs 65 million years ago, you might consider crashing asteroids and sky-darkening super volcanoes as culprits.
But a new study, published online, in the journal Nature, suggests that it is the ocean, and in particular the epic ebbs and [...]

Comet May Have Exploded Over North America 13,000 Years Ago

New scientific findings suggest that a large comet may have exploded over North America 12,900 years ago, explaining riddles that scientists have wrestled with for decades, including an abrupt cooling of much of the planet and the extinction of large mammals.
The discovery was made by scientists from the University of California at Santa Barbara [...]

A catastrophic megaflood separated Britain from France

A catastrophic megaflood separated Britain from France hundreds of thousands of years ago, changing the course of British history, according to research published in the journal Nature.
The study, led by Dr Sanjeev Gupta and Dr Jenny Collier from Imperial College London, has revealed spectacular images of a huge valley tens of kilometres wide and up [...]