65 536 shades of grey can help us understand our geological past
SHARE YOUR SCIENCE: When medicine met geology - detecting the invisible traces of volcanic eruptions with CT scans.
Among their findings is that ice age cycles suddenly became stronger just over 600,000 years ago. Researchers were also struck by how little plant life has changed over the past 1.7 million years.
A stone stemming from magma can be designated as igneous, but it could also be called spotted. A child might find learning geology as hard as a rock – given even a fraction of its formal terminology – or easy as pie if a few ordinary concepts are applied.