Joanna Scheffler

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79 Following
12 Posts
Geologist, educator, mom, fan of my home World. Rocks aren't dumb, you just have to know how to speak their language.

And one more story from Timelord #zircon for the #MinCup23 Grand Final – one I just learnt last year thanks to the Mineral Cup and Caroline Thaler (https://blog.eag.eu.com/news/caroline-thaler-climate-tech-project-entrepreneur/). This one blew me away because it was such an unexpected link to #zircon and has some intriguing implications…

This story has us diving into the Adriatic Sea to look at some very small creatures called foraminifera. Foraminifera are these amazing single-celled organisms that feed with strands of ectoplasm from their cell wall and often build a small shell around themselves from various materials. The microscopic shells can be important markers in the sedimentary record for time and environmental conditions. (I still fondly remember a University undergrad assignment being amazed by the diversity of shell types while spending hours picking through a collection of foraminifera shells under a microscope. It was also a very Zen exercise and pretty everyone in the class spent extra time doing it…).

Somewhere, right now, in the Adriatic Sea there is a species of benthic foraminifera called Psammophaga zirconia that are literally surrounding themselves with #zircon grains. P. zirconia’s specialty is picking zircon grains in the sediment to make it’s shell (see the Sabbatini et al 2016 paper at https://www.researchgate.net/publication/299381635_Selective_zircon_accumulation_in_a_new_benthic_foraminifer_Psammophaga_zircona_sp_nov). Not quite sure why, perhaps it’s a buoyancy thing to pick denser minerals stay anchored on the sea floor, but P. zirconia is going to a lot of trouble to select #zircon in particular which isn’t common in the surrounding sediment.

It also has interesting implications for the microfossil record because foraminifera like P. zirconia may have been here since the Precambrian and may have left little accumulations of zircon in ancient sedimentary rocks if we know to look for them. I also think there may be some interesting implications in understanding *how* a single-celled organism is able to differentiate minerals…

So, if Psammophaga zirconia is working hard to pick #zircon, so can you! Vote #zircon in the #MinCup23 final

https://www.mineralcup.org/2023/campaigns/round-5-match-1

Caroline Thaler, Climate tech project entrepreneur - EAG Blog

EAG Blog
@nonie3234 I love your header! I dressed as Marie Tharpe for Hallween but my students just thought it was normal me, haha

They had me at "fearless paleontologist"
--I predict this will be a six-pack flick, shared with other rockheads, of course.

https://www.netflix.com/us/title/81245455?s=a&trkid=13747225&t=cp&vlang=en&clip=81313614
#paleontologist #trolls #OGtrolls

Watch Troll | Netflix Official Site

When an explosion in the Norwegian mountains awakens an ancient troll, officials appoint a fearless paleontologist to stop it from wreaking deadly havoc.

@seislologist none of these — Humanities Professor and Dean…
#AgaveSyrup is wayyy better than light #corn #syrup, just sayin'
Pecan pie time! Or does this just look like some name dropping ad?

Another absolutely bananas collection of audio at Archive.org, the library of libraries: The vinyl from the Boston Public Library. You know that weird part of the library that's all old records? Remember how it smelled? Well here it is, digitized. Around 22,000 full albums (out of 69,000 albums; many have 30-second samples of each track).

We've got Wendy Carlos's Well-Tempered Synthesizer https://archive.org/details/lp_the-well-tempered-synthesizer_walter-carlos_0,

(Or 30 seconds of Anthony Burgess reading from A Clockwork Orange https://archive.org/details/lp_anthony-burgess-reads-from-a-clockwork-ora_anthony-burgess/disc1/02.01.+Enderby.mp3)

And found sounds of NYC https://archive.org/details/lp_sounds-of-my-city_tony-schwartz/disc1/01.01.+Introduction%3B+City+Street+Sounds%3B+People+Sing%2C+Dance+%26+Pray.mp3

Shirley Booth reading Dorothy Parker: https://archive.org/details/lp_dorothy-parker-stories-read-by-shirley-boo_shirley-booth/disc1/01.01.+Lady+With+A+Lamp.mp3

Tons of cowboy songs https://archive.org/details/lp_songs-of-the-west_norman-luboff-choir/disc1/01.01.+Bury+Me+Not+On+The+Lone+Prairie.mp3

Faulkner reading Faulkner: https://archive.org/details/lp_faulkner-reads-from-his-works_william-faulkner/disc1/01.01.+The+Nobel+Prize+Acceptance+Speech.mp3

And the Nonesuch Guide to Electronic Music: https://archive.org/details/lp_the-nonesuch-guide-to-electronic-music_beaver-krause_1/disc1/01.01.+I.+Peace+Three.mp3

https://archive.org/details/vinyl_bostonpubliclibrary

The Well-Tempered Synthesizer : Walter Carlos : Free Download, Borrow, and Streaming : Internet Archive

Tracklist: 1. Stereo Test Tone 2. Orfeo Suite 3. Sonata In G Major, L. 209 4. Sonata In D Major, L. 164 5. Water Music: Bourrée 6. Water Music: Air ...

Internet Archive
Since I committed to rocks in my handle and my Mastodon is actually populating, maybe I better post a picture of a rock--
so here's a glassy chunk at #CraterLake