ROTTnROCK
ERC SYNERGY grant
Alteration induced volcanic hazards 🌋
Mike Heap @rocklabstrasbourg.bsky.social, Claire Harnett @claireharnett.bsky.social, Val Troll, Thomas Walter @trwalter.bsky.social
Website: http://rottnrock.eu
- Reposted by ROTTnROCKNow installed as editor-in-chief of Journal of Volcanology and Geothermal Research 🌋 Will start handling manuscripts at the start of next year! www.sciencedirect.com/journal/jour...
- Reposted by ROTTnROCK🌋Phreatic eruptions at Whakaari volcano are influenced by subsurface pressurisation magnitudes and timescales, which in turn are significantly influenced by hydrothermal mineralisation and magmatic gas input rates. 👉Read more here: www.nature.com/articles/s43...
- ROTTnROCK PI @claireharnett.bsky.social wins an Arne Richter Award for Outstanding Early Career Scientists! Congratulations Claire! 🥳 She’ll be presented with the award at @egu.eu next year! @egu-gmpv.bsky.social
- Big congrats to @claireharnett.bsky.social, who won the 2026 @egu.eu Arne Richter Award for Outstanding Early Career Scientists! 🥳🏅 Here's some photos of Claire recommended by my phone... www.egu.eu/news/1551/eg...
- ROTTnROCK postdocs Matías and Ariane exploring how hydrothermal alteration shapes volcanic hazards in Dominica 🇩🇲 🌋 @arianeloisel.bsky.social
- The ROTTnROCK team mapping hydrothermal alteration at Sulphur Springs in Dominica using a lidar drone! 🌋 @trwalter.bsky.social
- The ROTTnROCK team investigate Boiling Lake in Dominica! 🇩🇲 🌋 @trwalter.bsky.social @magmatroll.bsky.social @arianeloisel.bsky.social
- Some of the ROTTnROCK team are currently in Dominica 🇩🇲 🌋 looking at, well, hydrothermal alteration of course! @magmatroll.bsky.social @trwalter.bsky.social @arianeloisel.bsky.social
- Reposted by ROTTnROCKNew paper out in Solid Earth, led by Sam Thiele: "Hyperspectral mapping of density, porosity, stiffness, and strength in hydrothermally altered volcanic rocks" 🥳 @rottnrock.bsky.social It's #OpenAccess! 👇 se.copernicus.org/articles/16/...
- Reposted by ROTTnROCKNice couple of days at Teide volcano summit 🌋 to understand hydrothermal alteration and associated risks with @magmatroll.bsky.social (Uppsala Univ) and @rottnrock.bsky.social ERC synergy grant cc @ipna.csic.es @csic.es
- Reposted by ROTTnROCKSamples of hyaloclastite from Krafla in Iceland 🇮🇸 🌋 These samples are from different depths within the shallow reservoir, and they’re now ready for some physical and mechanical probing in the laboratory!
- Come join us!
- I'm hiring a new post-doc to work on the @rottnrock.bsky.social project! Come help us understand hydrothermal alteration and volcanic hazards! Advert here: www.unistra.fr/universite/t... 📸 Recent ROTTnROCK trip to Mombacho, Nicaragua 🌋
- Reposted by ROTTnROCKPart of our international team of volcanologists working with @rottnrock.bsky.social! From England, Indonesia, and Chile! 🇬🇧 🇮🇩 🇨🇱 Interesting fact: we all like cats! 🐈
- Reposted by ROTTnROCKEarly morning start for our @rottnrock.bsky.social trip to Anak Krakatau from Anyer 🌋 Our luxury speed boats await! 🛥️ 1/9
- Reposted by ROTTnROCKAt Galunggung in Indonesia 🇮🇩 🌋 the @rottnrock.bsky.social team were investigating the impressive recent collapse within the crater - we found plenty of altered rocks in the blocky deposit!
- Reposted by ROTTnROCKThe @rottnrock.bsky.social team were at Galunggung today, a volcano famous after a British Airways flight accidentally flew through the huge eruption plume of the 1982 eruption! We’ll go back tomorrow to investigate, collect rocks, and drone the volcano 🌋
- Reposted by ROTTnROCKA two part feature! Lectures and scientific discussions today at the Fakultas Teknik Geologi at Universitas Padjadjaran and the Politeknik Geologi & Pertambangan AGP! 🌋 @magmatroll.bsky.social
- Reposted by ROTTnROCKThe @rottnrock.bsky.social team are in Indonesia! 🇮🇩 🌋 we’re here, obviously, to look at the altered volcanoes! 👀 first stop, Tangkuban Perahu in Bandung!
- Plenty of altered lapilli tuffs on Cracked Mountain! 🌋🇨🇦
- @rottnrock.bsky.social PI @claireharnett.bsky.social receiving the George Walker award! 🥳 @iavcei.bsky.social
- Flash-back to a few weeks ago when @claireharnett.bsky.social won the @iavcei.bsky.social George Walker Award! 🥇 Congrats again Claire! @farquharson.bsky.social, @alteringrocks.bsky.social, @magmatroll.bsky.social
- Altered lapilli tuffs! 😍
- Reposted by ROTTnROCKKeen to know about hydrothermal sealing and phreatic explosions! Check out our pre-print, led by Sophie Pearson-Grant! 🌋👇 Lots of cool insight from Sophie’s 3D models! www.researchsquare.com/article/rs-6...
- Reposted by ROTTnROCKCollection of great talks about phreatic explosions and hydrothermal sealing! 🌋 John Stix, Maarten de Moor, Emily Mick, Geoff Kilgour, Jessica Salas Navarro…
- Reposted by ROTTnROCKIf you’re interested in hydrothermal sealing and explosions, check out my #IAVCEI25 @iavcei.bsky.social poster today! Number 29! 🌋
- Bubbling mud pools at Hverir/Námafjall in Iceland 🇮🇸 Blubb blubb
- Reposted by ROTTnROCKCristobalite and diktytaxitic textures are common in lavas. Do they influence rock properties? We try to answer this question by measuring rocks from submarine volcano Havre 🌋 With @smitchellscience.bsky.social, Rebecca Carey, @alteringrocks.bsky.social It's open access 👇 doi.org/10.1016/j.jv...
- ROTTnROCK PI @claireharnett.bsky.social wins the @iavcei.bsky.social George Walker Award! 🥇 Congratulations! 🥳
- IAVCEI Awards 2025 – George Walker Award We are delighted to award the George Walker Award for 2025 to Dr. Claire Harnett @claireharnett.bsky.social . Dr. Harnett is recognized for her innovative research and significant contributions to the understanding of volcanic hazards and processes.
- Reposted by ROTTnROCK🚂🌱 On the train journey back from Sweden 🇸🇪 to Strasbourg 🇫🇷 after a fantastisk ROTTnROCK annual general assembly, filled with inspiring talks 🌋. Huge thanks to the Uppsala team (@magmatroll.bsky.social) for the top-notch organisation 💯 @rottnrock.bsky.social @rocklabstrasbourg.bsky.social
- @arianeloisel.bsky.social and Ben De Jarnatt present the recent Mombacho 🌋🇳🇮 to the rest of the ROTTnROCK team! It was a great trip and we’re all very excited about the data!
- The ROTTnROCK general assembly in Sweden 🇸🇪 has now come to a close! Amazing few days discussing all things rotten, and at a great location! @magmatroll.bsky.social @rocklabstrasbourg.bsky.social @claireharnett.bsky.social @trwalter.bsky.social Next one to be held in Strasbourg! 🇫🇷
- The annual ROTTnROCK general meeting continues today with more talks from the wider team! Lots of rotten rocks! 🌋🌋🌋 @arianeloisel.bsky.social @magmatroll.bsky.social @claireharnett.bsky.social @rocklabstrasbourg.bsky.social @trwalter.bsky.social
- The ROTTnROCK annual general meeting is underway at Krusenberg Herrgård in Sweden 🇸🇪 organised by @magmatroll.bsky.social and team. The first day included overview talks from all the PIs @rocklabstrasbourg.bsky.social @trwalter.bsky.social @rocklabstrasbourg.bsky.social @magmatroll.bsky.social
- The first day also included a talk from special guest @pablojglez.bsky.social from @csic.es. Pablo spoke about the activity, past and present, of Teide volcano in Tenerife 🌋🇪🇸
- Reposted by ROTTnROCKPre-print "Hyperspectral mapping of density, porosity, stiffness, and strength in hydrothermally altered volcanic rocks" now available for comments! 🌋 @rottnrock.bsky.social egusphere.copernicus.org/preprints/20...
- The view of perfectly-cone-shaped Concepción volcano, a volcano that emerges from Lake Nicaragua, from the top of Mombacho volcano 🌋 🇳🇮
- Ben « Tex » De Jarnatt drones the amphitheater at Mombacho volcano for the 3D stability modelling 🌋🇳🇮 @claireharnett.bsky.social
- @rottnrock.bsky.social postdoc Ariane Loisel @arianeloisel.bsky.social making Schmidt Hammer measurements on Mombacho volcano in Nicaragua 🌋🇳🇮
- Steamy! Active fumaroles at Mombacho volcano in Nicaragua 🌋🇳🇮
- Ariane Loisel @arianeloisel.bsky.social testing the strength of the outcrops at Mombacho 🌋🇳🇮 we aim to make a 3D model of the volcano to investigate stability @claireharnett.bsky.social
- Mike Heap @rocklabstrasbourg.bsky.social, Ben De Jarnatt, and Ariane Loisel @arianeloisel.bsky.social on the flanks of Mombacho volcano 🌋 🇳🇮 We are working with INETER to try to better understand the hazards posed by the volcano
- Hot hot hot! 🥵 Active fumaroles at Mombacho volcano in Nicaragua 🌋🇳🇮
- Active fumaroles at Mombacho volcano in Nicaragua 🌋🇳🇮
- Reposted by ROTTnROCKAriane @arianeloisel.bsky.social and Alex @alteringrocks.bsky.social exploring the active fumarolic activity at Mombacho volcano in Nicaragua 🌋🇳🇮 @rottnrock.bsky.social
- The amphitheater of Mombacho volcano 🌋 is certainly impressive! Current focus of the surface manifestation of hydrothermal activity is very localized. We’re here with INETER to explore 🌋🇳🇮 @rocklabstrasbourg.bsky.social @arianeloisel.bsky.social
- Reposted by ROTTnROCKThe alteration at Mombacho volcano 🌋 🇳🇮 has recently killed the trees at the top and sides of the scarp. Working with INETER, we plan to map the extent of the alteration @rottnrock.bsky.social
- Reposted by ROTTnROCKSometimes, as a supervisor, you just need to hold the umbrella ☂️ protecting Ben from the sun as he maps the alteration at Mombacho volcano 🌋 🇳🇮 @rottnrock.bsky.social
- The @rottnrock.bsky.social team arrive at Mombacho volcano 🌋 in Nicaragua 🇳🇮 to work with INETER to try to understand how alteration is influencing the volcano @rocklabstrasbourg.bsky.social @arianeloisel.bsky.social
- Ben De Jarnatt droning Mombacho in style! We’re in Nicaragua to work with INETER to understand the extent of the hydrothermal alteration at Mombacho volcano 🌋🇳🇮
- The @rottnrock.bsky.social team were at INETER yesterday, explaining the project and discussing how we can jointly help better understand Nicaraguan volcanoes, particularly Mombacho 🌋🇳🇮
- Sarlacc pit at the bottom of Masaya volcano 🌋 in Nicaragua 🇳🇮 no visible lava lake, but fabulous nonetheless! @arianeloisel.bsky.social @rocklabstrasbourg.bsky.social @alteringrocks.bsky.social
- @rottnrock.bsky.social postdoc Ariane Loisel @arianeloisel.bsky.social smiling in front of Masaya volcano 🌋 🇳🇮
- Pahoehoe lava at Masaya volcano in Nicaragua 🇳🇮 🌋 @rocklabstrasbourg.bsky.social
- The @rottnrock.bsky.social team explored Masaya volcano 🇳🇮 🌋 with INETER yesterday! Spectacular! @alteringrocks.bsky.social @rocklabstrasbourg.bsky.social @arianeloisel.bsky.social
- Reposted by ROTTnROCKSome of the @rottnrock.bsky.social team, and @alteringrocks.bsky.social, are on their way to Mombacho volcano in Nicaragua 🇳🇮 🌋 to work with INETER, looking at alteration and stability! @arianeloisel.bsky.social
- Ariane Loisel presents her poster about hydrothermal alteration at Teide volcano at #EGU25 🌋 She’s here now if you want to talk to her! @egu-gmpv.bsky.social
- Reposted by ROTTnROCK3D scanning of alteration rock samples from volcanoes. It is part of the ERC project RottNRock!
- Reposted by ROTTnROCKCongratulations to Agata Poganj, who published her first paper "Spatial distribution of alteration and strength in a lava dome: Implications for large-scale volcano stability modelling"! 🥳 🌋 @rottnrock.bsky.social Check it out here 👇 doi.org/10.1016/j.jv...
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- More crazy-altered samples, this time from Chillán volcano in Chile 🇨🇱 🌋 look at those sealed fractures! @rottnrock.bsky.social
- Reposted by ROTTnROCKAmazing altered samples from Las Cañadas caldera in Tenerife! 🌋🤩 @rottnrock.bsky.social @trwalter.bsky.social @magmatroll.bsky.social @claireharnett.bsky.social
- Reposted by ROTTnROCKMeet Benjamin De Jarnatt, our ECR of the month!! Originally from the United States 🇺🇸, Benjamin left behind the waves of Santa Cruz and now calls Germany 🇩🇪 home sweet home, where he's diving deep into the world of geosciences. Read his story 👇
- Reposted by ROTTnROCKProductive week of back-to-back seminars at Université de Genève 🇨🇭 and Université de Lausanne 🇨🇭, about the influence of hydrothermal alteration on volcanic hazards 🌋 and @rottnrock.bsky.social! Lots of interesting science discussions! Thanks to @lucacaricchi.bsky.social and @anungsamsu.bsky.social!
- Reposted by ROTTnROCKThe fluctuating hydrothermal activity at Lastarria follows a systematic pattern, with changes first seen at the summit before spreading to the flanks, as our latest work shows. Check it out here: authors.elsevier.com/sd/article/S... @rottnrock.bsky.social
- Reposted by ROTTnROCKGlad to inform that our new paper about detecting hydrothermal deposits using the GEE platform is out. We even can identify a sulfur flow from space! Check it out here: authors.elsevier.com/sd/article/S... @rottnrock.bsky.social
- Reposted by ROTTnROCKDrone image at 5800m showing the crater of Lascar volcano, looking north. See the little people in the foreground? That's us.
- @rottnrock.bsky.social PI @rocklabstrasbourg.bsky.social won this year’s VMSG Award! 🥳 Congratulations! @vmsg.bsky.social 🌋
- Following our announcement that Michael Heap has won this year's VMSG Award, today he was able to receive it in person and give his keynote lecture at #VMSG_MDSG25 in Dublin!
- Reposted by ROTTnROCKSmall fumarole field at 2707 m on Chillán 🌋🇨🇱 does the alteration weaken the rock?
- Reposted by ROTTnROCKThat's Martin and Christian installing a multigas monitoring system at Alitar, a highly variable, hydrothermally alterating and degassing maar-like structure in Chile. @gfz.bsky.social @rottnrock.bsky.social
- I see altered rocks! 😍
- A view of the packed back of our pickup, with Lastarria's fumarole fields in the background. We have a generator running to charge all the batteries while we continue our survey 🌋
- Interesting sulphur structures form in the fumarole field of Lastarria volcano. Some of the tubes are almost 1 metre long and grow downwind. What would you call them? 🌋
- @trwalter.bsky.social and team are setting up their hyperspectral drone to locate hydrothermal alteration at Lastarria volcano, Chile 🇨🇱 🌋 Look at those rotten rocks! 😍
- Some highlights from the recent ROTTnROCK trip to Tenerife! 🌋 Here’s @rocklabstrasbourg.bsky.social and @claireharnett.bsky.social in front of Teide volcano! 🌋
- @rocklabstrasbourg.bsky.social and Val Troll near the summit of Teide volcano collecting altered volcanic rocks 🌋
- Part of our job was to tackle problems synergistically, and so there was a lot going on! Remote sensing, led by Tom Walter, mapped out the position and extent of the alteration on Teide volcano 🌋
- Reposted by ROTTnROCKSome rotten rocks from Indonesia have arrived for laboratory testing! How has the alteration influenced their physical properties? 🌋 @rottnrock.bsky.social
- First in-person ROTTnROCK meeting since the project started! We’re at #EGU24 this week, and now are armed with ROTTnROCK stickers! Watch out for those too! 🌋 @rocklabstrasbourg.bsky.social @claireharnett.bsky.social
- Reposted by ROTTnROCKThe interiors of some of the bombs collected from Poás, Turrialba, and Rincón de la Vieja volcanoes in Costa Rica! 🌋🇨🇷 Snapshots of the hydrothermal seal! We’ll be soon making laboratory measurements! 🥳
- Reposted by ROTTnROCKCurrently breaking altered rocks from Copahue volcano in Argentina 🌋🇦🇷 With Marina Rosas-Carbajal and others we’re interested in assessing the stability of Copahue by combining laboratory and field measurements! 💪
- First @rottnrock.bsky.social poster, outlining the project, presented by @claireharnett.bsky.social at @vmsg.bsky.social 2024 in Bristol! Thrilled at the interest in the project! Get in touch for more details! 🌋 @rocklabstrasbourg.bsky.social @trwalter.bsky.social
- Reposted by ROTTnROCKLearn all about our new @rottnrock.bsky.social ERC project, and how you can get involved, in the latest @vmsg.bsky.social newsletter! 🌋🌋🌋 vmsg.org.uk/2023/12/vmsg... @claireharnett.bsky.social @trwalter.bsky.social