Genna Chiaro, Ph.D.

I could use a body double/accountability partner!

So how small are the zircons that we date in the lab? Here's a Fish Canyon Tuff zircon on a $5 bill for comparison!

Check out our new study on the earliest eruptive interval at Clear Lake volcanic field, California.

doi.org/10.1093/petr...

Oh man. I didn’t see those results 😭 only 25% people voted for sanidine. Dang

Multiple black and white images of intergrown sanidine and plagioclase grains that exhibit complex zonation, sieve textures, and bright rims.

A black and white image of a sanidine with wild textures. Internal zonation is abruptly truncated by a bright rim. Plagioclase inclusions are present in the bright rim (darker grey minerals)

Gasp. Take a look at these cathodoluminescence images of felspars (sanidine and plagioclase) and take that back! These erupted out during a crystal-rich supereruption. Feldspar textures are amazing. And don’t forget the kspar megacrysts in Yosemite!

Yes. I am currently rereading 1984 and there are too many parallels…

Nudibranchs I recently observed in Japan
最近観察したウミウシたち

Sphagnum quinquefarium #moss #bryophyte

Keep sciencing. We are living through a time when looking at a rock and wondering how old it is qualifies as an act of resistance.

The same exact thing happened to me yesterday hahaha 😂 I didn’t realize until I scrolled to the very bottom of the page

Marie Tharp with the iconic Heezen-Tharp World Ocean Floor map, a landmark in cartography. Credit: Lamont-Doherty Earth Observatory and the estate of Marie Tharp

🎂 Happy birthday, #MarieTharp! 🗺️ A pioneering geologist and cartographer, Tharp created some of the world's first maps of the ocean floor, and helped prove the theory of plate tectonics. Her legacy reverberates across ocean sciences today. Learn more: lamont.columbia.edu/news/happy-b...

The curly girl Reddit community helped me immensely when I got started. I would recommend getting a razor cut (they cut your hair w a razor blade so each curl is defined) but not a devacut (devacuts were too expensive and didn’t work for my 2b curly hair). Deep condition w clarifying wash 1x/month!

A sea slug with a translucent body and bright blue cerata crawls along a patch of algae.

This Crowned Aeolis (Facelina auriculata) photo is special for more than just its striking blue colors — it's also among the first iNaturalist observations of the species in Canada.

📷 hunterefs on iNaturalist
📍 Canada
🔗: www.inaturalist.org/observations...
#ObservationOfTheDay

A comic about Karl Poppers paradox of tolerance using nazis as an example. If we extend tolerance to the intolerant, the tolerant will eventually cease to exist.

Karl Poppers paradox of tolerance needs to be spread far and wide. Unfortunately, we may be too late. I really hope we aren’t.

Sphagnum rubellum #moss #bryophyte

That’s a great idea- I will do that from now on. Thanks!

This is unfortunate - I made my AGU 23 presentation on a Mac and during my talk it had the incorrect formatting (no gridlines, different plot backgrounds, etc) and it really threw me off. It was fine in the pre-presentation screening though, so it was a big surprise. Maybe this is for the best?

Conference poster titled “Paired zircon and allanite dating of late Pleistocene-Holocene Rhyolites in the Mono Basin, Eastern California, USA”. The poster displays a geologic map, a backscattered electron image of allanite, fayalite, and magnetite grains, a whole-rock geochemical plot, U/Th isochrons, and an age summary plot showing how our method greatly increased precision compared to previous methods.

I couldn’t come in person to present my #IAVCEI2025 poster, so here it is for you all to enjoy!

Nine reduced rhyolites erupted in quick succession in the Mono Basin (Eastern California, just north of the Long Valley Caldera) ~6,000 years ago!

@iavcei.bsky.social

Proterozoic Rocks xkcd.com/3008

Sphagnum quinquefarium #moss #bryophyte

I stumbled upon the synchronous fireflies while backpacking in the smokies and staying at a site close ish to elkmont. I can look and see what my itinerary likely was (this was back in 2018) if you are interested in backcountry fireflies in the smokies!

Square linocut print on white paper of seismologist Inge Lehmann in a fur coat, silk scarf and dapper hat, in dark grey-teal ink overprinted with her diagram of the cross-section of the Earth in orange and red from her P’ paper, showing the mantle, outer core and inner core, an earthquake epicentre marker E and labelled ray paths through the Earth.

Happy birthday to Danish #seismologist Inge Lehmann (1888 – 1993) who demonstrated that the Earth’s core is not a single molten sphere, but contained an inner solid core, in ‘36. She was a pioneer #womanInScience, a brilliant seismologist & lived to be 105.⁠ 🧪🐡⚒️ #histsci
⁠
As she first postulated, 🧵

This is disrespectful and a flat out lie that further stigmatizes autism. It’s not a virus or a disease - it’s a neurological condition with a wide spectrum. Many Americans with autism work, pay taxes, and are living happy and healthy lives.

A few scenes (with unusually clear sound due to absence of wind) of the Strombolian activity at #Etna's Southeast Crater during the night of 2-3 April 2025. Note the cute little secondary vent in the latter part of the video.

Here’s a video with a nice hawk gracing me with its presence. If you know what type of hawk this is, please let me know!

Ocean view with some crashing waves and steep cliffs.

Another beautiful ocean view with some weathered granite cliffs.

The Pacific Ocean with some granite cliffs in Montara, CA. I hope it brings some momentary peace, like it did for me.

YouTube video by Senator Chris Murphy Murphy: Six Weeks In, This White House Is On Its Way To Being The Most Corrupt In U.S. History

A rare example of #DemsDoingSomething: Senator Chris Murphy laying out the first six weeks of the current regime’s corrupt behaviors on the Senate floor. Worth the watch. www.youtube.com/watch?v=hyco...

Make some moth bait!! This link has a good recipe nationalmothweek.org/2011/10/15/44/