Iceland is known as ‘the land of fire and ice’ for a reason.
L’expertise universitaire, l’exigence journalistique
Articles sur Magma
Affichage de 1 à 20 de 29 articles
Scientists were not previously certain how the precious stones arrived at the Earth’s surface.
One in ten people around the world live near an active volcano. Understanding the drivers of eruptions is crucial.
Some rocks will burn, and others will melt, depending on how they were formed and what minerals they contain.
As they shape the Earth, volcanoes inspire and terrify humans.
The eruption of Mauna Loa is a profound spiritual experience for many Native Hawaiians. An anthropologist explains Native American beliefs on the living Earth and volcanic lava.
A scientist who led one of the first projects to map the Hawaiian Islands’ deep volcanic plumbing explains what’s going on under the surface as Mauna Loa erupts.
Earth has liquid rock inside. Here’s what happens to that rock to make lava happen.
Drones can be used to collect gas samples from active volcanoes, where it is too dangerous for researchers. This data can be then used to predict the frequency and severity of eruptions.
There’s a curious 200-million-year rhythm to Earth’s crust production. Now, it seems like our very place in the galaxy is tied to it.
The eruption is akin to a weapons-grade chemical explosion, and there could be several weeks or even years of major volcanic unrest to follow.
A previously unknown filtering process inside some volcanoes can cause magma to shoot out like champagne from a bottle - and perhaps even make it easier to forecast when a volcano is about to erupt.
I look at fragments of the Earth’s mantle under a microscope to learn how fast molten rock moves from deep in the Earth to the surface. This can help us prepare for future volcanic eruptions.
The eruption prompted the evacuation of about 20,000 people, with no casualties.
The rocks provide rare evidence of a time when Earth’s surface was a deep sea of incandescent magma.
Exploration of ancient magma chambers in fossil volcanoes has the potential to provide new sources of metals that will facilitate environmentally friendly technologies.
Geophysicists use sound waves to build a picture of the magma and rock beneath this active volcano, most of which is underwater. It’s like CT scanning the Earth.
Scientists say they’ve found a new method to help predict when volcanoes will erupt, based on data crunched from an eruption last year in Hawaii.
Compared to Earth, more “oomph” is required to bring magma to the surface of Mars, and this is probably why we haven’t seen any recent eruptions on the red planet.
Important points about volcanoes: location matters, explosiveness can be predicted to an extent, and fast-moving flows of volcanic materials (known as pyroclastic flows) are deadly.
Les contributeurs les plus fréquents
-
Associate Professor - Igneous Petrology/Volcanology, The University of Queensland
-
Research Fellow, University of St Andrews
-
Associate Professor of Volcanology and Geoscience Communication, University of Twente and Adjunct Associate Professor, Monash University
-
Reader in Earth Sciences, University of Bristol
-
Professor of Earth Sciences, University of Oxford
-
Assistant Lecturer in Volcanology, Monash University
-
Associate Professor in Geophysics, Te Herenga Waka — Victoria University of Wellington
-
Professor of Earth Sciences, University of Oxford
-
Senior Lecturer in Earth Sciences and Environmental Sciences & the Center for Exoplanet Science, University of St Andrews
-
Professor of Geophysics, Te Herenga Waka — Victoria University of Wellington
-
Senior Scientific Officer, Earth Science, University of the West of England
-
Assistant Professor of Earth Sciences, University of Oregon
-
Postdoctoral Associate of Earth Sciences, University of Minnesota
-
Lecturer in Geoscience, Queensland University of Technology
-
Lecturer in Education, Charles Darwin University
