Tag: magma
Lava lakes seen by Olivier Grunewald
Windows open towards the center of the Earththe lakes of wash are fascinating phenomena. Often located at the bottom of deep craters, their dynamism is hypnotic. The regular arrival of…
How can geologists predict a volcanic eruption?
Is it possible to predict an eruption? If this is the case in the medium term, it is not yet possible to estimate the precise date. The number of parameters…
How can geologists anticipate an eruption?
Is it possible to predict an eruption? If this is the case in the medium term, it is not yet possible to estimate the precise date. The number of parameters…
Plate tectonics: for continents too, rupture can be difficult
Continental breakup is one of the fundamental processes of plate tectonics. While some continents seem to accept divorce quite easily, breaking up is much more difficult for others. You will…
For the continents too, the break can be difficult
Continental breakup is one of the fundamental processes of plate tectonics. While some continents seem to accept divorce quite easily, breaking up is much more difficult for others. You will…
Thermal spring: what is it?
Thermal springs, or hot springs, are natural resurgences of highly mineralized hot water. If they are often associated with magmatic processes and the proximity of a volcanic system, their presence…
Volcano: what is the difference between lava and magma?
Lava and magma are two terms relating to volcanism that we sometimes tend to use interchangeably. However, both refer to different materials. You will also be interested [EN VIDÉO] How…
A new model of the crystallization of the Moon’s magma ocean
Rocks from the Apollo missions have provided information about the history of the Moon and the formation of its crust and mantle. But more recent mineralogical data, notably from space…
Explosive eruption in the Tonga Islands and tsunami: what happened?
In the Tonga archipelago located in the Pacific Ocean, very violent explosions produced columns of ash 20 to 30 kilometers high on Friday January 14 and Saturday January 15, above…
The current continental crust differs from the primitive earth’s crust
At the very beginning, our Planet was only molten rocks. The cooling of its surface gradually formed the primitive continental crust which would allow to install the future favorable conditions…