toad.social

Dr Micha CampbellAlways a good day when friends have a good day! Out today in NATURE (!) from Monika Markowska - 8 million year record of recurrent humid phases in Arabia.<a href="https://www.nature.com/articles/s41586-025-08859-6" rel="nofollow noopener" translate="no" target="_blank">https://www.nature.com/articles/s41586-025-08859-6</a><a href="https://fediscience.org/tags/Quaternary" class="mention hashtag" rel="nofollow noopener" target="_blank">#Quaternary</a> <a href="https://fediscience.org/tags/QuaternaryScience" class="mention hashtag" rel="nofollow noopener" target="_blank">#QuaternaryScience</a> <a href="https://fediscience.org/tags/speleothem" class="mention hashtag" rel="nofollow noopener" target="_blank">#speleothem</a> <a href="https://fediscience.org/tags/speleothems" class="mention hashtag" rel="nofollow noopener" target="_blank">#speleothems</a> <a href="https://fediscience.org/tags/palaeoclimate" class="mention hashtag" rel="nofollow noopener" target="_blank">#palaeoclimate</a>

Jeff MunroeWritten in stone. When illuminated like this, it's easy to see how geologists can use rock formations growing in caves as archives of the past. Photo by T. Holmes. <a href="https://fediscience.org/tags/caves" class="mention hashtag" rel="nofollow noopener" target="_blank">#caves</a> <a href="https://fediscience.org/tags/cave" class="mention hashtag" rel="nofollow noopener" target="_blank">#cave</a> <a href="https://fediscience.org/tags/utah" class="mention hashtag" rel="nofollow noopener" target="_blank">#utah</a> <a href="https://fediscience.org/tags/geology" class="mention hashtag" rel="nofollow noopener" target="_blank">#geology</a> <a href="https://fediscience.org/tags/earthscience" class="mention hashtag" rel="nofollow noopener" target="_blank">#earthscience</a> <a href="https://fediscience.org/tags/speleothems" class="mention hashtag" rel="nofollow noopener" target="_blank">#speleothems</a>

Dr Micha Campbell<a href="https://fediscience.org/tags/PaperClub" class="mention hashtag" rel="nofollow noopener" target="_blank">#PaperClub</a> is back for the start of 2025, and we're kicking off with Patterson et al (2024), who present a PCP-corrected stalagmite d18O record from Vietnam, spanning 45-4 ka. Interesting paper, and the whole 'PCP impacts on d18O' thing has been getting quite a lot of airtime in recent years. Hopefully without sounding like a hater, I remain a bit skeptical. In this instance, the model assumptions include a feeding stalactite drip rate of 1 drip/second, which seems too high for LGM (where PCP effect on the stal was greatest). For stalactite PCP to be recorded in a stalagmite, there must not be sufficient residence time for re-equilibration to occur. I would love to see a sensitivity test of the drip rate on the model. Growth rates during the 'peak PCP' period were also extremely low (<5 um/yr), which suggests to me that growth was likely not continuous over the period. d18O vals were high, I assume there was greater opportunity for disequilibrium to drive the signal rather than PCP?Anyway, I'm definitely no expert in d18O kinetics, and I'm looking forward to hearing the opinions of the group, and anyone else who has read the paper :) I am really happy to be wrong about this, as there are lots of clever people on the paper who know more than me about this stuff!<a href="https://fediscience.org/tags/Paleoclimate" class="mention hashtag" rel="nofollow noopener" target="_blank">#Paleoclimate</a> <a href="https://fediscience.org/tags/Speleothems" class="mention hashtag" rel="nofollow noopener" target="_blank">#Speleothems</a> <a href="https://fediscience.org/tags/speleology" class="mention hashtag" rel="nofollow noopener" target="_blank">#speleology</a> <a href="https://www.nature.com/articles/s41467-024-53422-y" rel="nofollow noopener" translate="no" target="_blank">https://www.nature.com/articles/s41467-024-53422-y</a>

Dr Micha CampbellBox of rocks arrived for me today 😍 we will be taking these beauties to the Aus Synchrotron next month to get an idea if they might be suitable for <a href="https://fediscience.org/tags/palaeofire" class="mention hashtag" rel="nofollow noopener" target="_blank">#palaeofire</a> research. Happily, these were collected by a friend of mine for her PhD, which means a potential collaboration with a friend (yay!), and the reuse of old samples rather than collecting new (double yay!).<a href="https://fediscience.org/tags/speleothems" class="mention hashtag" rel="nofollow noopener" target="_blank">#speleothems</a> <a href="https://fediscience.org/tags/palaeoclimate" class="mention hashtag" rel="nofollow noopener" target="_blank">#palaeoclimate</a>

Dr Micha CampbellWe were very kindly invited to write a communication piece for <a href="https://fediscience.org/tags/AGUPubs" class="mention hashtag" rel="nofollow noopener" target="_blank">#AGUPubs</a> Eos magazine, to go along with our recent review paper. If you'd like a quick overview on using <a href="https://fediscience.org/tags/speleothems" class="mention hashtag" rel="nofollow noopener" target="_blank">#speleothems</a> for <a href="https://fediscience.org/tags/palaeofire" class="mention hashtag" rel="nofollow noopener" target="_blank">#palaeofire</a> research, look no further! <a href="https://eos.org/editors-vox/using-cave-formations-to-investigate-ancient-wildfires" rel="nofollow noopener" target="_blank">https://eos.org/editors-vox/using-cave-formations-to-investigate-ancient-wildfires</a><a href="https://fediscience.org/tags/SciComm" class="mention hashtag" rel="nofollow noopener" target="_blank">#SciComm</a> <a href="https://fediscience.org/tags/AcWri" class="mention hashtag" rel="nofollow noopener" target="_blank">#AcWri</a> <a href="https://fediscience.org/tags/paleofire" class="mention hashtag" rel="nofollow noopener" target="_blank">#paleofire</a> <a href="https://aus.social/@Andbaker" class="u-url mention" rel="nofollow noopener" target="_blank">@Andbaker</a>

Dr Micha CampbellWoohoo it's paper publishing day! So pleased to have this article out in the light of day, and published <a href="https://fediscience.org/tags/OpenAccess" class="mention hashtag" rel="nofollow noopener" target="_blank">#OpenAccess</a> in Reviews of Geophysics. We give you everything we know about <a href="https://fediscience.org/tags/speleothems" class="mention hashtag" rel="nofollow noopener" target="_blank">#speleothems</a> as <a href="https://fediscience.org/tags/palaeofire" class="mention hashtag" rel="nofollow noopener" target="_blank">#palaeofire</a> archives, including tips on sample and site selection, and appropriate methods. We then sweeten the deal with four case studies. This one was a huge team effort, and could not have been written without the involvement of all the co-authors (👋 <a href="https://aus.social/@Andbaker" class="u-url mention" rel="nofollow noopener" target="_blank">@Andbaker</a>).<a href="https://fediscience.org/tags/AcWri" class="mention hashtag" rel="nofollow noopener" target="_blank">#AcWri</a> <a href="https://fediscience.org/tags/Academia" class="mention hashtag" rel="nofollow noopener" target="_blank">#Academia</a>

Dr Micha CampbellThere's something soothing about polishing rocks. Gave some samples a touch-up ahead of a trip to the Synchrotron next week for some fun on the XFM line. Look at the shine! <a href="https://fediscience.org/tags/palaeoClimate" class="mention hashtag" rel="nofollow noopener" target="_blank">#palaeoClimate</a> <a href="https://fediscience.org/tags/Speleothems" class="mention hashtag" rel="nofollow noopener" target="_blank">#Speleothems</a> <a href="https://fediscience.org/tags/Stalagmites" class="mention hashtag" rel="nofollow noopener" target="_blank">#Stalagmites</a> <a href="https://fediscience.org/tags/AustralianSynchrotron" class="mention hashtag" rel="nofollow noopener" target="_blank">#AustralianSynchrotron</a> <a href="https://fediscience.org/tags/Shiny" class="mention hashtag" rel="nofollow noopener" target="_blank">#Shiny</a>

Kau)))My <a href="https://qoto.org/tags/firstpost" class="mention hashtag" rel="nofollow noopener" target="_blank">#firstpost</a> on <a href="https://qoto.org/tags/Mastodon" class="mention hashtag" rel="nofollow noopener" target="_blank">#Mastodon</a>: 🌏 🌊 I am an Earth/climate scientist at the University of Arizona in <a href="https://qoto.org/tags/Tucson" class="mention hashtag" rel="nofollow noopener" target="_blank">#Tucson</a> (southwestern US) focusing on the areas of <a href="https://qoto.org/tags/climate" class="mention hashtag" rel="nofollow noopener" target="_blank">#climate</a> change, <a href="https://qoto.org/tags/paleoclimates" class="mention hashtag" rel="nofollow noopener" target="_blank">#paleoclimates</a>, and <a href="https://qoto.org/tags/paleoceanography" class="mention hashtag" rel="nofollow noopener" target="_blank">#paleoceanography</a>, with an emphasis on <a href="https://qoto.org/tags/ENSO" class="mention hashtag" rel="nofollow noopener" target="_blank">#ENSO</a>, <a href="https://qoto.org/tags/monsoons" class="mention hashtag" rel="nofollow noopener" target="_blank">#monsoons</a>, & <a href="https://qoto.org/tags/variability" class="mention hashtag" rel="nofollow noopener" target="_blank">#variability</a>. ⚗️🐚 Our group uses <a href="https://qoto.org/tags/inorganic" class="mention hashtag" rel="nofollow noopener" target="_blank">#inorganic</a> <a href="https://qoto.org/tags/geochemistry" class="mention hashtag" rel="nofollow noopener" target="_blank">#geochemistry</a> incl. measurements of <a href="https://qoto.org/tags/stableisotopes" class="mention hashtag" rel="nofollow noopener" target="_blank">#stableisotopes</a> & <a href="https://qoto.org/tags/tracemetals" class="mention hashtag" rel="nofollow noopener" target="_blank">#tracemetals</a> in <a href="https://qoto.org/tags/carbonate" class="mention hashtag" rel="nofollow noopener" target="_blank">#carbonate</a> rocks & <a href="https://qoto.org/tags/fossils" class="mention hashtag" rel="nofollow noopener" target="_blank">#fossils</a> (e.g., <a href="https://qoto.org/tags/foraminifera" class="mention hashtag" rel="nofollow noopener" target="_blank">#foraminifera</a>, <a href="https://qoto.org/tags/mollusks" class="mention hashtag" rel="nofollow noopener" target="_blank">#mollusks</a>, & <a href="https://qoto.org/tags/speleothems" class="mention hashtag" rel="nofollow noopener" target="_blank">#speleothems</a>) alongside climate <a href="https://qoto.org/tags/observations" class="mention hashtag" rel="nofollow noopener" target="_blank">#observations</a> as well as <a href="https://qoto.org/tags/simulations" class="mention hashtag" rel="nofollow noopener" target="_blank">#simulations</a> to advance understanding of how the Earth's <a href="https://qoto.org/tags/climate" class="mention hashtag" rel="nofollow noopener" target="_blank">#climate</a> & <a href="https://qoto.org/tags/oceans" class="mention hashtag" rel="nofollow noopener" target="_blank">#oceans</a> have changed in the past and can change in the future. Some of my hobbies include: 🎵 <a href="https://qoto.org/tags/music" class="mention hashtag" rel="nofollow noopener" target="_blank">#music</a>: I am a fan of <a href="https://qoto.org/tags/metal" class="mention hashtag" rel="nofollow noopener" target="_blank">#metal</a> and heavy music of all sorts, but tend to migrate towards <a href="https://qoto.org/tags/black" class="mention hashtag" rel="nofollow noopener" target="_blank">#black</a>, <a href="https://qoto.org/tags/death" class="mention hashtag" rel="nofollow noopener" target="_blank">#death</a>, <a href="https://qoto.org/tags/doom" class="mention hashtag" rel="nofollow noopener" target="_blank">#doom</a>, <a href="https://qoto.org/tags/drone" class="mention hashtag" rel="nofollow noopener" target="_blank">#drone</a>, <a href="https://qoto.org/tags/sludge" class="mention hashtag" rel="nofollow noopener" target="_blank">#sludge</a>, & <a href="https://qoto.org/tags/thrash" class="mention hashtag" rel="nofollow noopener" target="_blank">#thrash</a>. I also have a soft spot for <a href="https://qoto.org/tags/carnatic" class="mention hashtag" rel="nofollow noopener" target="_blank">#carnatic</a>/#hindustani <a href="https://qoto.org/tags/ragas" class="mention hashtag" rel="nofollow noopener" target="_blank">#ragas</a>, <a href="https://qoto.org/tags/darkambient" class="mention hashtag" rel="nofollow noopener" target="_blank">#darkambient</a>, oldschool-ish <a href="https://qoto.org/tags/hiphop" class="mention hashtag" rel="nofollow noopener" target="_blank">#hiphop</a>, <a href="https://qoto.org/tags/triphop" class="mention hashtag" rel="nofollow noopener" target="_blank">#triphop</a>, and various forms of <a href="https://qoto.org/tags/electronicmusic" class="mention hashtag" rel="nofollow noopener" target="_blank">#electronicmusic</a>. 🦜 <a href="https://qoto.org/tags/birds" class="mention hashtag" rel="nofollow noopener" target="_blank">#birds</a> & <a href="https://qoto.org/tags/birding" class="mention hashtag" rel="nofollow noopener" target="_blank">#birding</a> <a href="https://qoto.org/tags/photography" class="mention hashtag" rel="nofollow noopener" target="_blank">#photography</a> bring me joy. Right now, I feel v lucky to be briefly back in my hometown of <a href="https://qoto.org/tags/Bengaluru" class="mention hashtag" rel="nofollow noopener" target="_blank">#Bengaluru</a>, southern India, after three long years being able to see <a href="https://qoto.org/tags/oldworld" class="mention hashtag" rel="nofollow noopener" target="_blank">#oldworld</a> birds I grew up with. 👨🏾‍💻 <a href="https://qoto.org/tags/GTD" class="mention hashtag" rel="nofollow noopener" target="_blank">#GTD</a>, <a href="https://qoto.org/tags/mindfulness" class="mention hashtag" rel="nofollow noopener" target="_blank">#mindfulness</a>, <a href="https://qoto.org/tags/organization" class="mention hashtag" rel="nofollow noopener" target="_blank">#organization</a>, and (vs?) <a href="https://qoto.org/tags/producivity" class="mention hashtag" rel="nofollow noopener" target="_blank">#producivity</a> are things that I enjoy thinking about. Of late, I've been using <a href="https://qoto.org/tags/Things3" class="mention hashtag" rel="nofollow noopener" target="_blank">#Things3</a>, <a href="https://qoto.org/tags/Streaks" class="mention hashtag" rel="nofollow noopener" target="_blank">#Streaks</a>, <a href="https://qoto.org/tags/Hobonichi" class="mention hashtag" rel="nofollow noopener" target="_blank">#Hobonichi</a> w a <a href="https://qoto.org/tags/Lamy" class="mention hashtag" rel="nofollow noopener" target="_blank">#Lamy</a> Safari, <a href="https://qoto.org/tags/Obsidian" class="mention hashtag" rel="nofollow noopener" target="_blank">#Obsidian</a>, <a href="https://qoto.org/tags/Overleaf" class="mention hashtag" rel="nofollow noopener" target="_blank">#Overleaf</a>, & <a href="https://qoto.org/tags/Bookends" class="mention hashtag" rel="nofollow noopener" target="_blank">#Bookends</a> to get things done. 🙏🏽 Thanks for reading!

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