Copper is an essential element of our society with main uses in the field of electricity and electronics. About 70% of the copper comes from deposits formed several million years ago during events of magma degassing within ...
Earth Sciences
Jan 12, 2017
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Mercury was long thought to be lacking volatile compounds that cause explosive volcanism. That view started to change when the MESSENGER spacecraft returned pictures of pyroclastic deposits—the telltale signature of volcanic ...
Space Exploration
Apr 2, 2014
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(Phys.org) —Using information gathered from samples of deep sea sediments, researchers from the University of Bristol report new findings regarding the dynamics of the eruption of Mount Tambora, Indonesia in 1815 – one ...
Earth Sciences
Mar 27, 2013
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The massive eruption of Mt. St. Helens 35 years ago is one of the largest ever seen in North America. LMU volcanologists now report a retrospective analysis of salts leached from the ash deposited by the volcano on that occasion.
Earth Sciences
Jun 26, 2015
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Scientists at Queen's University Belfast have led the discovery of a volcanic ash cloud that travelled from Alaska to Northern Ireland and beyond - overturning previously held assumptions about how far ash deposits can drift, ...
Earth Sciences
Nov 19, 2014
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(Phys.org) —University of Auckland scientists have discovered that Rangitoto erupted not once or twice as previously believed, but multiple times over a period of 1,000 years, prompting a rethink of how Auckland volcanoes ...
Earth Sciences
Apr 11, 2013
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Geologists have discovered three previously unrecorded volcanoes in volcanically active southeast Australia.
Earth Sciences
Jun 26, 2014
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0
In January 2011, aboard a scientific drilling ship in the Pacific Ocean, I witnessed an enigmatic green flash before sunrise. This optical phenomenon has been recorded to occur if the conditions are just right – clean, ...
Earth Sciences
Jan 28, 2014
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0
Billions of years ago, volcanoes sent material from inside planetary bodies to the surface. Subsequent impacts have covered those original deposits. Jennifer Whitten, who receives her Ph.D. in geological sciences this year, ...
Earth Sciences
May 21, 2014
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0
Rangitoto, Mt Albert, Lake Pupuke, Orakei Basin, Mt Eden and One Tree Hill are some of Auckland's most familiar landmarks. But they are also reminders of the city's fiery history and the looming threat of future disasters.
Earth Sciences
Dec 14, 2015
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