News articles tagged with 'volcano'
Lava fingerprinting reveals differences between Hawaii's twin volcanoes
— 2 Dec 2011 10:53 | Geology and palaeontologyHawaii's main volcano chains - the Loa and Kea trends - have distinct sources of magma and unique plumbing systems connecting them to the Earth's deep mantle, according to UBC research…
Deep-sea volcanoes don't just produce lava flows, they also explode!
— 29 Mar 2011 16:19 | Geology and palaeontologyBetween 75 and 80 per cent of all volcanic activity on Earth takes place at deep-sea, mid-ocean ridges. Most of these volcanoes produce effusive lava flows rather than explosive eruptions,…
Before the explosion - volcano's warning tremors explained
— 24 Feb 2011 19:20 | Geology and palaeontologyNo matter their size or shape, explosive volcanoes produce tremors at similar frequencies for minutes, days or weeks before they erupt. In the Feb. 24 issue of the journal Nature, researchers…
Oscillating 'plug' of magma causes tremors that forecast volcanic eruptions: UBC research
— 24 Feb 2011 18:47 | Geology and palaeontologyUniversity of British Columbia geophysicists are offering a new explanation for seismic tremors accompanying volcanic eruptions that could advance forecasting of explosive eruptions…
Geologists get unique and unexpected opportunity to study magma
— 17 Feb 2011 17:57 | Geology and palaeontologyGeologists drilling an exploratory geothermal well in 2009 in the Krafla volcano in Iceland encountered a problem they were simply unprepared for: magma (molten rock or lava underground)…
Researchers find smoking gun of world's biggest extinction
— 23 Jan 2011 19:47 | EnvironmentAbout 250 million years about 95 per cent of life was wiped out in the sea and 70 per cent on land. Researchers at the University of Calgary believe they have discovered evidence to…
Cassini spots potential ice volcano on Titan
— 15 Dec 2010 18:08 | AstronomyNASA's Cassini spacecraft has found possible ice volcanoes on Saturn's moon Titan that are similar in shape to those on Earth that spew molten rock…
Geologist's discoveries resolve debate about oxygen in Earth's mantle
— 15 Dec 2010 17:32 | Geology and palaeontologyWhile there continues to be considerable debate among geologists about the availability of oxygen in the Earth's mantle, recent discoveries by a University of Rhode Island scientist…
10 years of Soufriere Hills Volcano research published
— 19 Nov 2010 12:08 | Geology and palaeontologyThe Soufriere Hills Volcano on Montserrat erupted in 1995, and an international team of researchers has studied this volcano from land and sea since then to understand the workings…
Months of geologic unrest signalled reawakening of Icelandic volcano
— 18 Nov 2010 10:18 | Geology and palaeontologyMonths of volcanic restlessness preceded the eruptions this spring of Icelandic volcano Eyjafjallajoekull, providing insight into what roused it from centuries of slumber…