News tagged with volcanic process

Organic carbon from Mars, but not biological

(Phys.org) -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules ...

Space & Earth / Space Exploration

created May 24, 2012 | popularity 4.4 / 5 (5) | comments 2 | with audio podcast

Autopsy of a eruption: Linking crystal growth to volcano seismicity

A forensic approach that links changes deep below a volcano to signals at the surface is described by scientists from the University of Bristol in a paper published today in Science. The research could ultima ...

Space & Earth / Earth Sciences

created May 24, 2012 | popularity 3.5 / 5 (2) | comments 0 | with audio podcast

New analysis explains formation of bulge on farside of moon

(PhysOrg.com) -- A bulge of elevated topography on the farside of the moon--known as the lunar farside highlands--has defied explanation for decades. But a new study led by researchers at the University of ...

Space & Earth / Space Exploration

created Nov 11, 2010 | popularity 4.1 / 5 (19) | comments 5 | with audio podcast

Too much of a good thing: Human activities overload ecosystems with nitrogen

Humans are overloading ecosystems with nitrogen through the burning of fossil fuels and an increase in nitrogen-producing industrial and agricultural activities, according to a new study. While nitrogen is ...

Space & Earth / Environment

created Oct 07, 2010 | popularity 4.6 / 5 (9) | comments 22 | with audio podcast

Eruptive characteristics of Oregon's Mount Hood analyzed

A new study has found that a mixing of two different types of magma is the key to the historic eruptions of Mount Hood, Oregon's tallest mountain, and that eruptions often happen in a relatively short time ...

Space & Earth / Earth Sciences

created Aug 02, 2010 | popularity 4.5 / 5 (2) | comments 1 | with audio podcast

As the World Churns

(PhysOrg.com) -- "Terra firma." It's Latin for "solid Earth." Most of the time, at least from our perspective here on the ground, Earth seems to be just that: solid. Yet the Earth beneath our feet is actually ...

Space & Earth / Earth Sciences

created Dec 28, 2009 | popularity 4.4 / 5 (19) | comments 29

African desert rift confirmed as new ocean in the making

(PhysOrg.com) -- In 2005, a gigantic, 35-mile-long rift broke open the desert ground in Ethiopia. At the time, some geologists believed the rift was the beginning of a new ocean as two parts of the African continent pulled ...

Space & Earth / Earth Sciences

created Nov 02, 2009 | popularity 4.9 / 5 (37) | comments 8

Scientists offer new theory for largest known mass extinction

The largest mass extinction in the history of the earth could have been triggered off by giant salt lakes, whose emissions of halogenated gases changed the atmospheric composition so dramatically that vegetation ...

Space & Earth / Earth Sciences

created Mar 30, 2009 | popularity 4 / 5 (21) | comments 5