Tag: volcanology
Hot spots that are too cold and a geodynamic model of the Earth’s mantle to be reviewed
A new study questions the deep origin of some hot spots thanks to an analysis of their temperature: they are colder than we thought. You will also be interested [EN…
Protrusion: what is it?
In geology, a protrusion represents a construction volcanic domed or needle typical of Pelean volcanism. This type of volcanism refers to Mount Pelée in Martinique, and is characterized by very…
Fumerolles: what is it?
Fumaroles are small plumes of gas or vapors of volcanic origin escaping from the ground through cracks, vents or vents. They are associated with zones of volcanism active. We thus…
Recent lava from the Hawaii hotspot is believed to result from intense chemical interactions in the Earth’s mantle
The lavas produced in the volcanoes of certain hot spots have a particularity: they are rich in CO2 and carbonates. The rocks resulting from these magmas are what are called…
Andesitis: what is it?
Andesites are part of the large family of volcanic rocks. Of color Light gray that can go to black, andesite has a microlitic structure, which means that the majority of…
Vulcano: the mythical island of volcanology is partially evacuated
Since September 2021, the surveillance systems of theIstituto nazionale di geofisica e vulcanologia Italian have recorded a significant variation of certain volcanological signals detected at Vulcano, in particular those related…