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#stalagmite — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #stalagmite, aggregated by home.social.

  1. 17-Oct-2025
    Drip by drip: The hidden blueprint for #stalagmite growth
    stalagmites grow into flat-topped pedestals, classical columns, or pointed cones not by chance, but according to a single controlling factor – the Damköhler number – which represents a balance between the rates of #calcite precipitation and the flow of water

    eurekalert.org/news-releases/1

    #science #geology

  2. Just published in Organic Geochemistry, "Fire-induced shifts in stalagmite organic matter mapped using Synchrotron infrared microspectroscopy", led by #ANSTO colleague Dr. Liza McDonough. We demonstrate for the first time that Synchrotron IRM is a promising non-destructive, high resolution (5 µm) technique for analysing stalagmite organic matter. The paper can be found #OpenAccess here: doi.org/10.1016/j.orggeochem.2

    #speleothem #stalagmite #organicMatter #pastClimate #geochemistry #UNSW

    @Andbaker

  3. A full on but successful 4 days on the XFM beamline at the Ausgralian Synchrotron. We mixed things up this time by running some tree cores for Casey's PhD work - lots of cool features showing up! We also mapped a bunch of stalagmites, including some pilot data for my next job. 74 elemental maps made, a new record for us!

    #synchrotron #xfm #dendrochemistry #speleothem #stalagmite #palaeoclimate #palaeoemvironment

  4. Destructive analyses make me sooooo nervous, but I am looking forward to finding out how old these samples are! Hopefully the results will be worth the anxiety 😅

    #geochronolgy #UTh #stalagmite #palaeoclimate #paleoclimate #dontfuckitup

  5. I don’t know what to call these. #stalagmite #icicles maybe? Vertically ascending icicles formed on a tree branch in the #NorthTyne river as the fast moving water washes over them and a tiny amount freezes each time.