The last few days kept us busy with dredge operations. We've collected a diverse range of samples from #hydrothermal #rocks to #pyroclastics, #lavas, #volcaniclastics🌋 and #carbonates🐚. Processing is around the clock. Looking forward to picking apart their stories. #M191 #SUAVE

Excitement on #M191 flared at the end of week 1 when we intersected a #hydrothermal #vent field 1st noted by Coltelli et al. INGVvulcani. Our #MBES water column data captured #gas escape from an active chimney in real-time. Some chimneys were then sampled, sketched & described.

Also on board with us: Alastair Hodgetts Kerys Meredew Aaron Micallef and many others without twitter.

Honoured to be working with such a passionate team of scientists, excited by our results and ready to help me with creating blog content! 🌋🐚 Aaron Micallef Kerys Meredew Alastair Hodgetts Gnuhl @geologybham OGS University of Malta School of GeoSciences @ University of Edinburgh WellingtonUni University of Oxford GEOMAR

On #M191 #seafloor #mapping helps determine dredge locations. The MBES provides bathymetric data & the magnetometer identifies ferromagnetic features (intrusions, seamounts). New volcanic features were found (below) & some suspected volcanic edifices turned out not to be igneous.

Yesterday, we discovered the coolest rock of the cruise so far! 🪨 Our igneous petrology teams immediately got working to figure out what processes could have led to its formation. Can you guess what it might be?

Excited to be working with David Zhang (david zhang) et al on this exciting #Icelandic eruption 🌋 #Hrafntinnuhraun has produced some intriguing pyroclastics which I'm sure we will know much more about soon ⚒️🪨 Make sure to follow David, @subglacial, Hugh Tuffen and @hollyeunwin

On #RVMeteor we like to keep things interesting: if not dredging/mapping, you can find us doing #scicomm. Chief scientist Jörg Geldmacher introduced our work to the crew. Also, a blog post reviewing our discoveries from the first week at sea is now live: tinyurl.com/2pk785vc

As the #M191 dredge team processes sampled rocks, shift leaders operate from the bridge alongside #RVMeteor's nautical crew, shown below selecting and directing dredge locations🌋⛴️ #SUAVE

And that’s a wrap! Final dredge of #M191 is on deck and processed, now to start our transit to Greece ⛴️🇬🇷

Kalws hrthame in Greece 🇬🇷! Our 2.5 day transit was spent dismantling equipment, presenting preliminary results on #SUAVE to different groups onboard and working on leaving our mark in the #RVMeteor guestbook. Science team has only a few hours left together now! #M191 out!

Thanks to the Open University Geological Society for inviting me to give the Geoff Brown Lecture 🌋 at their annual #symposium this weekend! It was a fantastic few days of #geology and great fun to talk about my research to such an enthusiastic community of #earth #scientists! 🪨 🔨 🌎

Article: Early continental crust formed at depth, implying some type of plate tectonics operating as long as four billion years ago Sally Law @GBromiley Edinburgh Ion Micro-Probe Facility School of GeoSciences @ University of Edinburgh nature.com/articles/s4156…

Work led by Alan Hastie, me and the experimental gang School of GeoSciences @ University of Edinburgh and Edinburgh Ion Micro-Probe Facility

The first discovery by IODP #Exp398 Hellenic Arc Volcanic Field was published today at nature.com/articles/s4324…

📢🌋SO excited for the next Ashvances in Tephra Seminar (monday march 25, 1600UTC)! Lucky to have Soledad Osores (SMN Argentina) & Federica Pardini (INGVvulcani) 🤩 Two fantastic speakers leading tephra research & operational response. Registration👉 tinyurl.com/atss0324

Geophysical data and samples from the M191 cruise have reshaped our understanding of submarine volcanism in the Sicilian Channel, revealing new volcanoes. Read all about it here: authors.elsevier.com/a/1jImj5mVd%7E… MBARI

Our paper, showing how Icelandic granites are not a good analogue for formation of our first continents, but may be useful for silicic rocks on planets without plate tectonics is out today in Communications Earth & Environment nature.com/articles/s4324… School of GeoSciences @ University of Edinburgh

Our new paper published in #MarineGeology contains new geophysical data and rock samples collected during the #M191 research cruise in the #Sicilian #Channel. New #submarine #volcanoes were also discovered!🌋You read all about it here: authors.elsevier.com/c/1jImj5mVd~0Nr

Ashes in the archive. Lake Chalco holds a 400,000-year record of 450+ explosive eruptions near Mexico City—some leaving >10 cm of ash. What does this mean for volcanic risk today? #Volcanology #Hazards #MexicoCity #GSABulletin #GSAPubs doi.org/10.1130/B38401… [Fig. 8] Alastair Hodgetts