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etiennemedard.bsky.social
Earth and planetary scientist (igneous petrology / volcanology) and nature enthusiast - Associate Prof @UCAuvergne - Views are my own.
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Today I was teaching binary phase diagrams with a solvus to undergrads so here is a pretty perthite with a Carlsbad twin from the hypersolvus Tolla granite (Corsica) for #ThinSectionThursday ⚒️

submitted 18 days ago • 1 comment

Hi @earth-science.bsky.social can you add me to the feed please? Thanks! Etienne

submitted 22 days ago • 0 comments

For #VolcanoMonday, I give you Manaro Voui volcano, a shield volcano on the Island of #Ambae in the #Vanuatu arc. A poorly known volcano, it flew under the radar until unrest started in the 1990s, culminating in a major eruption in 2017-2018 that lead twice to the evacuation of the entire island.⚒️🧪🌋

submitted 28 days ago • 1 comment

'tis the season for ice crystals ⚒️ #mineralogy #minerals #geology

submitted 35 days ago • 0 comments

Short introduction since I have not yet been really active here. Igneous petrologist working mostly on volcanic rocks using field, analytical, and experimental tools. Also teaching (faculty at Université Clermont Auvergne). Interested in anything linked to nature: mineral, plant, animal, landscape

submitted 35 days ago • 1 comment

Watch these snowflake-like dendritic clinopyroxenes twinkle as this thin section is rotated in cross-polarised light!❄️☃️ This is a rare volcanic rock called komatiite, from Gorgona. Credit: Charlie Gordon. #ThinSectionTuesday #Petrology #Mineralogy

submitted 76 days ago • 0 comments

First day of our undergraduate fieldcamp looking at deformation and metamorphism on the beautiful Cap_de_Creus - deformation in a low-grade gresopelitic sequence and relationships between bedding and schistosity (Cadaques)

submitted 293 days ago • 0 comments

Cephalanthera damasonium on (wet) limestone soils in the southern part of the French Massif Central #orchids

submitted 306 days ago • 0 comments

The second PhD paper by our amazing PhD student Pauline Verdurme is online! Read for free at authors.elsevier.com/c/1izOE,Ig4Y... for the next 50 days about what vesicles can tell us about the 2018-2020 large submarine eruption offshore Mayotte. #earth-science @earth-science.bsky.social

submitted 313 days ago • 0 comments

First few #orchids of the season on a sunny limestone slope (likely Anacamptis morio) #botany #wildflowers

submitted 321 days ago • 0 comments

First mushroom of the year 😋

submitted 322 days ago • 0 comments