"But some of these areas, in particular the Campi Flegrei, are densely populated and therefore even small eruptions, which are the most probable, fortunately, can pose risks for the population," said De Natale, from the Vesuvius observatory at Ital
It is known that the Earth's magnetic field is produced by convection currents of an electrically conducting iron-nickel alloy in the liquid core, about 3,000 kilometers below the earth's surface. The geomagnetic field is highly variable, there are
Just think, one week ago I was saying that 2012 was a relatively quiet year for volcanic eruptions. We haven’t made up all the ground of the more active years like 2010-11, however New Zealand had one of its more exciting volcanic weeks in a century
he rift lies beneath the Ferrigno Ice Stream on a stretch of coast so remote that it has only been visited once previously. The British Antarctic Survey (BAS) project revisited the area two years ago in the person of Aberdeen University glaciologi
A newly discovered water source could supply half of Africa's driest sub-Saharan country with 400 years of water, reports Matt McGrath of BBC.
What I suspect will work is to produce coarse biochar from sawdust which should be readily available in sufficient amounts to produce the tonnages desired. I would then blend the mill tailings and the biochar on perhaps a ten to one ratio of tailing
have occurred in Iceland four times in roughly the past thousand years, records indicate, the most recent being the deadly and remarkable eruption of Iceland's volcano Laki in 1783-84.
The last tipping point in Earth's history occurred about 12,000 years ago when the planet went from being in the age of glaciers, which previously lasted 100,000 years, to being in its current interglacial state. Once that tipping point was reached,
reveal that a steep decline in the intensity of melting within the planet's mantle - the hot, heat-transferring rock layer between the crust and molten outer core - brought about ideal conditions for the period known as the Great Oxygenation Event (
The current theory of continental drift provides a good model for understanding terrestrial processes through history. However, while plate tectonics is able to successfully shed light on processes up to 3 billion years ago...
Now, Guilherme Gualda of Vanderbilt University and his colleagues present several lines of evidence from the Bishop Tuff deposit at Long Valley, suggesting that the pools are "ephemeral" - lasting as little as 500 years before eruption.
Some of the steepest mountain slopes in the world got that way because of the interplay between terrain uplift associated with plate tectonics and powerful streams cutting into hillsides, leading to erosion in the form of large landslides, new resear
The UK-led team of researchers analysed tiny crystals in rocks erupted from the volcano. These crystals contain a record of events inside the magma chamber such as injections of hot magma or gas. They found that injections of magma or gas into the c
If you’ve ever seen an explosive volcanic eruption – either live or on video – you know that there is an awful lot of ash produced. All that magma (well, most of it) that is erupting from the volcano is being fragmented into tiny glass shards that we
Scientists from the University of Southampton have discovered a previously unrecognised volcanic process, similar to one that is used in chocolate manufacturing, which gives important new insights into the dynamics of volcanic eruptions.
An earthquake in the Indian Ocean off the coast of Sumatra, Indonesia on 11th April was unusually powerful, at magnitude 8.6, for a “strike-slip” type of quake, and a new analysis of the earthquake and its 8.2 magnitude after-shock has proposed that
"the Yellowstone super-volcano is a little less super than previously thought." The bad news: the Yellowstone super-volcano is "more active than previously thought." That means eruptions are more frequent. So the next one is likely closer than pr
This rebound has been countered by some form of major elastic flow from an area close but that was capable of subsiding. The North Atlantic is the only such area available. Thus the argument that parts of the mid ocean ridge subsided cannot be dismis
I'll go with the statement-but it is not the standard statement scientists usually make. The landmass on both maps DOES coincide with a map on the Mid-Atlantic Ridge in the Scientific American a while back, indicating the area of a possible earlier
Early members of an ancient family of trees, the cypresses, grew on the supercontinent Pangaea, and when this giant continent split apart, it shaped the future of these trees, according to research that examined the evolution of these trees, which to
"Both the building blocks for continents and the continental crust itself, dating back as much as 3 billion years, are highly depleted in copper."
Earth is clingy when it comes to copper.
A few news reports (in Icelandic) have been talking about the crater lake on Askja caldera having mysteriously become ice-free over the last month while lakes around it (that aren’t on volcanoes) and at lower elevations are still ice-covered
Before the magma separated from the bedrock, the semifluid rock and the leftover solid minerals actively exchanged trace elements. "Different minerals have characteristic ways of separating when trace elements are smelted. In other words, the con
The researchers also found spherules that had collided at high velocities with other spherules during the chaos of impact. Such features, Kennett noted, could not have formed through anthropogenic, volcanic, or other natural terrestrial processes. "
e 250 million years ago when rapid climate change wiped out nearly all marine species and a majority of those on land. Now, they have discovered a new culprit likely involved in the annihilation: an influx of mercury into the eco-system.
"We're excited to actually get some really good samples and very clear cut continental rocks which show that (the islands) are little fragments of Gondwana that were left behind as India moved away from Australia," she said.
The East Antarctic Ice Sheet, which formed 34 million years ago and covers 10 million km" of our planet (an area the size of Canada), protected the mountains from erosion.
Clouds of dust belched from the corners of almost every room in Joe Reneau's house as the biggest earthquake in Oklahoma history rocked the two-story building.
UPDATE 3:15 EDT: It looks like the phreatomagmatic explosive activity is beginning south of El Hierro. Prensa El Hierro tweeted (translated): “Juan Manuel Santana have just announced that produce water columns and ash.” La Restinga is being evacuated