Volcano's legacy still washing up on beaches
Pieces of pumice from the same volcanic eruption that caused the largest pumice raft seen in 50 years have continued to wash up on Queensland shores this week.
Acid raid, ozone depletion contributed to ancient extinction
Rain as acidic as undiluted lemon juice may have played a part in killing off plants and organisms around the world during the most severe mass extinction in Earth's history.
Keep a lid on it: The controversy over Earth's oldest rocks
New evidence is shedding light on the processes that formed Earth's oldest rock and mineral record – processes that influenced the early evolution of life.
'Jake_M': Unusual Mars rock described
The first rock that scientists analyzed on Mars with a pair of chemical instruments aboard the Curiosity rover turned out to be a doozy – a pyramid-shaped volcanic rock called a "mugearite" that is unlike ...
A hitchhiker's guide to pumice
A floating raft of pumice created by an underwater volcanic eruption near New Zealand, and teeming with marine hitchhikers, has been spotted in the northern Great Barrier Reef.
How does your garden grow?
Food and biofuel crops could be grown and maintained in many places where it wasn't previously possible, such as deserts, landfills and former mining sites, thanks to an inexpensive, non-chemical soil additive.
Molten magma can survive in upper crust for hundreds of millennia
Reservoirs of silica-rich magma – the kind that causes the most explosive volcanic eruptions – can persist in Earth's upper crust for hundreds of thousands of years without triggering an eruption, according ...
Volcanic eruption coats Japanese city with ash
Residents in a southern Japanese city accustomed to frequent eruptions from a nearby volcano were busy washing ash off the streets Monday after the mountain spewed a record-high smoke plume into the sky.
Meteorites' age is at center of Mars history debate
Planetary scientists dream of sending a geologist to Mars to study its rocks by hand. Until then, they have to settle for examining meteorites - chunks of the Red Planet that land on Earth after hurtling through ...
Some volcanoes 'scream' at ever-higher pitches until they blow their tops
It is not unusual for swarms of small earthquakes to precede a volcanic eruption. They can reach a point of such rapid succession that they create a signal called harmonic tremor that resembles sound made ...
Scientists cast doubt on theory of what triggered Antarctic glaciation
A team of U.S. and U.K. scientists has found geologic evidence that casts doubt on one of the conventional explanations for how Antarctica's ice sheet began forming. Ian Dalziel, research professor at The ...
Research says Mars had oxygen-rich atmosphere 4000 million years ago
Differences between Martian meteorites and rocks examined by a NASA rover can be explained if Mars had an oxygen-rich atmosphere 4000 million years ago—well before the rise of atmospheric oxygen on Earth ...
Climate in the Peruvian Andes: From early humans to modern challenges
(Phys.org) —Twice humans have witnessed the wasting of snow and ice from Peru's tallest volcano, Nevado Coropuna—In the waning of the last ice age, some 12,000 years ago, and today, as industrial carbon ...
Roman seawater concrete holds the secret to cutting carbon emissions
The chemical secrets of a concrete Roman breakwater that has spent the last 2,000 years submerged in the Mediterranean Sea have been uncovered by an international team of researchers led by Paulo Monteiro ...