Sentences with phrase «v magmatic»

Not exact matches

Implicit assumptions have been that the next unrest will resemble its predecessor and, hence, that the shallow crust and magmatic system at Campi Flegrei has returned to conditions similar to those before 1982.

Historical exploration has identified magmatic massive nickel sulphides over 0.2 m — 3.0 m downhole widths in drillholes.

However Professor Stewart, writing in Episodes, has suggested the change coincides closely with a period of particularly high sea levels that could have triggered the fundamental change in Mount Etna's magmatic behaviour.

Nevertheless, a team of UNIGE - led geologists has provided new evidence of the Mediterranean's drying up and the forcing of surface processes on magmatic activity.

The volcanologist explains that the lack of a major volcanic eruption does not necessarily indicate that magmatic activity has come to a complete halt.

«The volcanic eruption has now moved on to the next, more severe, magmatic eruption phase, where highly viscous lava can trap gases under pressure, potentially leading to an explosion,» says Mark Tingay, a geologist at the University of Adelaide in Australia.

In the study entitled «The effect of giant lateral collapses on magma pathways and the location of volcanism,» authored by F. Maccaferri, N. Richter and T. Walter, all working at GFZ, in section 2.1 (Physics of earthquakes and volcanoes), the propagation path of magmatic intrusions underneath a volcanic edifice has been simulated by means of a mathematical model.

Professor Luca Caricchi adds: «When we determine the age of a family of zircons from a small sample of solidified magmatic rock, using results from the mathematical model we have developed, we can tell what the size of the entire magma chamber was, as well as how fast the magma reservoir grew.»

The article presenting the methodology and its optimization for magmatic crystals has just been published in the journal Chemical Geology.

For 250 million years between Year 2.16 and 2.26 billion, however, volcanic activity appears to have subsided in a «global magmatic lull» so that comparatively little carbon dioxide was released into the atmosphere through volcanoes (Condie et al, 2009; and David Shiga, New Scientist, May 9, 2009).

The Geological agency head, Kasbani, who goes by one name, said the alert level was raised at 6 am on Monday because the volcano had shifted from steam - based eruptions to magmatic eruptions.

«The activity of Mount Agung has entered the magmatic eruption phase,» Gede Suantika, an official at the volcanology and geological disaster mitigation agency, told Reuters.

The Balinese volcano, the highest point on the island, has grown increasingly restless over the past week, with the alert system raised to its highest level early on Monday, as the nature of the eruptions has shifted from phreatic, or steam - based, to magmatic.

«The volcanic eruption has now moved on to the next, more severe, magmatic eruption phase, where highly viscous lava can trap gasses under pressure, potentially leading to an explosion,» Mark Tingay, a geologist at the University of Adelaide's Australian School of Petroleum, said in a statement Monday.

The western crater has had magmatic activity in the past, but none registered within the past 150 years

I like the idea that the unwary «worshippers» are confronted with these sentinels, the idea that their gaze is somehow reciprocated but these impenetrable totems, spouting out of a magmatic matter coming from a distant future or past, have found a home in the Biennale's ground staring at the unwary art crowd...

Tectonic - magmatic (rift to drift) events on both the West and East Greenland margins are recorded by Paleocene and Early Eocene flood basalts, regional dike swarms, central intrusions and sill complexes in Paleozoic - Mesozoic rift basins that have been exposed by Tertiary uplift.