GMPV
Geochemistry, Mineralogy, Petrology & Volcanology

Geochemistry, Mineralogy, Petrology & Volcanology

La Soufrière de Guadeloupe: Past Eruptions and Ongoing Activity

September 13, 2024
La Soufrière de Guadeloupe: Past Eruptions and Ongoing Activity
La Soufrière on a clear day. The fumes coming out of the volcano are from Cratère Sud Centrale (the focus of the most degassing on the volcanic dome). We can also see numerous scars decorating its flanks (source: the website Parc national de Guadeloupe).

La Soufrière de Guadeloupe is an andesitic stratovolcano located in the southern part of Basse-Terre, within the Guadeloupe archipelago (Eastern Caribbean). It towers over the towns of Sainte-Claude and Basse-Terre. Nearly 50 years ago, this region faced severe consequences from a phreatomagmatic eruption, forcing the evacuation of 80,000 people. Since then, the volcano has been regularly monitore ...[Read More]

GMPV ECS Campfires – Meet the GMPV GA24 awardees! September 12th @11 am CET

August 23, 2024
GMPV ECS Campfires – Meet the GMPV GA24 awardees! September 12th @11 am CET

The first edition of the Geochemistry, Mineralogy, Petrology and Volcanology Campfires of the 2024/2025 season is right at the door and will take place on Thursday September 12th at 11 am CET on Zoom. This edition will be a special Scientific Campfire, during which the three GMPV ECS awardees of the 2024 General Assembly will present their latest work to the community.  Our speakers for this editi ...[Read More]

THE CHALLENGES OF DATING – GEOLOGISTS’ VERSION (part one)

July 19, 2024
THE CHALLENGES OF DATING – GEOLOGISTS’ VERSION (part one)
Heart-shaped minerals photomicrograph by Bernardo Cesare, from the Imaggeo archives.

When it comes to dating profiles, minerals can put up a really good face at first. But, as some of the users in dating apps out there, they might not be worthy of a second try, or maybe not even of a first depending on what your intentions are… To help out, we will tackle some of the main minerals used in geochronology, as if they were featured on online dating apps, plus some ‘red flags’ from pre ...[Read More]

Volcanism, anthropogenic carbon dioxide emissions, and mass extinctions

July 7, 2024
Volcanism, anthropogenic carbon dioxide emissions, and mass extinctions
Credit: Ivan Koulakov (distributed via imaggeo.egu.eu)

Only a very small fraction of the energy produced by nuclear fusion in the Sun (3.82 x 1023 kW) reaches the top of the Earth’s atmosphere (1.7 x 1014 kW), and then only about 50% of it reaches the Earth surface, where it is absorbed by the oceans and land. This energy is radiated back as longwave infrared radiation, which is partially absorbed and after reradiated downward to the surface by the gr ...[Read More]