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agesgeochronology.bsky.social
AGeS Geochronology
@agesgeochronology.bsky.social
56 followers 120 following 13 posts
AGeS is an award program to promote inclusive and collaborative science using geochronology.
US NSF supported.
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agesgeochronology.bsky.social
AGeS Geochronology @agesgeochronology.bsky.social · Mar 4
⚠️AGeS is now on Bluesky⚠️
‼️WOOP WOOP‼️

AGeS is an NSF-funded initiative consisting of micro-award programs to support inclusive 🌍 and collaborative 🤝 science using geochronology ⏳. Follow us for updates 📢 regarding application deadlines 🗓️ and community spotlights 🔦!

agesgeochronology.org
Reposted by AGeS Geochronology
jraasch.bsky.social
#MinCup25

A vote for #molybdenite is a vote for geochronology!

Vote molybdenite today!

www.nature.com/articles/s41...
September 12, 2025 at 1:05 PM
Reposted by AGeS Geochronology
arctomet.bsky.social
Y.-T. Zhong et al. (2025)

High-precision geochronology of the Early Cretaceous Jiufotang Formation: Temporal constraints on the late phase of the Jehol Biota

Earth and Planetary Science Letters 671: 119688

doi.org/10.1016/j.ep...

www.sciencedirect.com/science/arti...
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doi.org
October 19, 2025 at 2:10 PM
Reposted by AGeS Geochronology
minouette.bsky.social
Sanidine is high in potassium so useful for K-Ar dating in geochronology.

Electrically conductive iron ore hematite is a pigment with a storied history in red ochre & chalk used for 164,000 years of art history! So my arts vote goes to hematite! Plus it’s found on Mars, & used in gems. #MinCup25
Wall Painting, Altamira cave in Spain, around 15 000 Years Old is an example of the use of hematite as red ochre as a pigment. This photo features as a cave painting of a red ox. Its history even goes back to cave paintings in the Pinnacle Point Cave in South Africa which dates back 164,000 years! Hematite as red ochre is an important pigment in this painting: Edgar Degas,Combing the Hair (La Coiffure) ca 1896. Medium: Oil Support: Canvas Size: 114,3 cm x 146,7 cm Art period: Impressionism, Realism National Gallery London NG 4865 A red haired woman in a red-orange dress and room reclines in a chair as her red-haired maid (pink shirt, white apron, black skirt) brushes her hair. There’s a heavy red curtain on the left and table with tablecloth and a few items at the lower right. The combing is the focus and the vast majority of the painting is red-orange. Via https://colourlex.com/project/degas-combing-hair/ You can find hematite as a pigment in this painting: Rembrandt, The Night Watch 1642 Medium: Oil Support: Canvas Size: 379.5 x 453.5 cm Art period: Baroque Rijksmuseum Amsterdam Painting “The Night Watch is one of the most famous Dutch Golden Age paintings. Rembrandt's large painting (363 by 437 centimetres (12 by 14+1⁄2 feet)) is famed for transforming a group portrait of a civic guard company into a compelling drama energized by light and shadow (tenebrism). The title is a misnomer; the painting does not depict a nocturnal scene.” Yellow-green Sanidine crystal from the small finds at Itrongay, Madagascar. Weighs 20 grams or 100 carats. By Rob Lavinsky, iRocks.com – CC-BY-SA-3.0 [CC-BY-SA-3.0], via Wikimedia Commons
September 7, 2025 at 12:10 PM
Reposted by AGeS Geochronology
thegeojesse.bsky.social
U-Pb garnet geochronology is a great technique for dating metamorphic and igneous rocks, but garnets have very low U and Pb. Sometimes we might be dating the inclusions instead. It is not always clear what is and is not an inclusion!

See the paper here: lnkd.in/gGriU_Fv

#geology #geochronology
August 12, 2025 at 1:17 PM
agesgeochronology.bsky.social
AGeS awardee Isabella Bennett just published in J. Geosci. Educ. on creating a program that trains students in research through field sampling, lab analyses & data interpretation!
Congrats, Isabella! 🎉🔬

Read more here 👇
www.tandfonline.com/doi/full/10....
Successes and challenges in developing an educational program to engage underrepresented college students in environmental science research
To increase the accessibility of research training for undergraduate students from communities underrepresented in science, technology, engineering, and mathematics (STEM), we developed an immersiv...
www.tandfonline.com
August 19, 2025 at 5:24 PM
agesgeochronology.bsky.social
🔦✨ AGeS scholar Tristan Bench uses X-ray 📸 + OSL 🌈 scans to spot high-luminescence zones on Foothills Erratics Train samples. These red hotspots distort depth profiles 📉—targeting them sharpens surface exposure ages 🧭.

#AGeSScholar #OSL #GeoChronology
July 29, 2025 at 8:12 PM
Reposted by AGeS Geochronology
geosociety.bsky.social
Tiny zircon grains = big tectonic clues.

A new #GSABulletin study traces ancient links between Arctic Alaska, Baltica & Laurentia using detrital zircon geochronology—offering a two-part model for the Amerasia Basin’s opening.

🔗 geosociety.co/4eClz4O
#ArcticGeology #GSAPubs
July 6, 2025 at 2:26 PM
agesgeochronology.bsky.social
Kicking off summer with stunning field scenes from AGeS scholars! 🌍⛰️
📍Cauca River, Colombia
📍NW Greenland Ice Margin
📍Valles Caldera, NM
#GeoChronology #SummerScenes #AGEScholarship
June 17, 2025 at 9:57 PM
agesgeochronology.bsky.social
🧠 Did you know that the AGES geochronology program is now on Instagram?

Follow us for a closer look at student research, lab techniques, field adventures, and all things geochronology ⛏️🪨🕰️

📸 www.instagram.com/agesgeochron...

#Geochronology #EarthScience #Thermochronology #CUboulder #Fieldwork
June 4, 2025 at 11:11 PM
agesgeochronology.bsky.social
TOMORROW!
💫 AGeS Virtual Community Symposium 💫
🏆 11 am-3 pm ET 🏆
💥 Invited Talks 💥
🔬 AGeS project presentations 🔬
🍀 Engage and interact with the geochronology community 🍀
☺️ All are invited ☺️

cuboulder.zoom.us/j/95271867802
May 6, 2025 at 11:32 PM
Reposted by AGeS Geochronology
agesgeochronology.bsky.social
SAVE THE DATE!

💫 AGeS Virtual Community Symposium 💫
🏆 Wednesday May 7, 2025, 11 am-3 pm ET 🏆
💥 Invited Talks💥
🔬 AGeS project presentations 🔬
🍀 Engage and interact with the geochronology community 🍀

All are invited 😊
March 11, 2025 at 8:21 PM
agesgeochronology.bsky.social
AGeS-Grad awardee Shanti Penphrase just published a paper in Geology paper showing Euro-American farming in the Upper Mississippi eroded soil 8–12× faster than Ice Age glaciers—featured in Science!
Congrats, Shanti! 🎉🌍

Read all about it below! 👇
www.science.org/content/arti...
April 29, 2025 at 5:51 PM
agesgeochronology.bsky.social
AGeS-Grad awardee John M. Brigham just published a paper in Lithos on the temporal and spatial scales of garnet growth during serpentinization, using Belvidere Mountain, Vermont, as a case study. Congrats to John! 🎉

Read all about it below 👇
www.sciencedirect.com/science/arti...
April 24, 2025 at 9:12 PM
agesgeochronology.bsky.social
Interested in learning about observing impacts on luminescence depth profile evolutions from altered quartzite using OSL laser scanning & controlled light exposed rock sampling techniques? 🔦

Read AGeS awardee Tristan Bench's paper in Quaternary Geology:
www.sciencedirect.com/science/arti...
April 14, 2025 at 9:00 PM
Reposted by AGeS Geochronology
agesgeochronology.bsky.social
🏔️Interested in joining AGeS as a lab partner? Want to host an innovative scholar for their geochronology research?🏔️

Head on over to: www.colorado.edu/program/ages...
for more information on how to support some awesome proposals!
March 25, 2025 at 10:23 PM
agesgeochronology.bsky.social
🏔️Interested in joining AGeS as a lab partner? Want to host an innovative scholar for their geochronology research?🏔️

Head on over to: www.colorado.edu/program/ages...
for more information on how to support some awesome proposals!
March 25, 2025 at 10:23 PM
agesgeochronology.bsky.social
AGeS-Grad awardee Nick Meszaros published a paper in the Journal of Volcanology and Geothermal Research on the evolution of eruption rate between 2 caldera-forming eruptions in the Jemez magmatic system, NM. Congrats to Nick!

Read all about it below!
www.sciencedirect.com/science/arti...
March 21, 2025 at 6:13 PM
Reposted by AGeS Geochronology
realbiomassspec.bsky.social
Minimizing Variable Downhole Fractionation in U–Pb Zircon Geochronology by LA-MC-ICP-MS at Smaller Spot Size #JMS analyticalsciencejournals.onlinelibrary.wiley.com/doi/full/10....
Minimizing Variable Downhole Fractionation in U–Pb Zircon Geochronology by LA‐MC‐ICP‐MS at Smaller Spot Size
The development of LA-ICPMS and LA-MC-ICPMS resulted in analytical methods for zircon geochronology using a 20- to 60-μm laser spot size. A high amount of complexly zoned zircons promotes the require...
analyticalsciencejournals.onlinelibrary.wiley.com
February 19, 2025 at 1:34 PM
agesgeochronology.bsky.social
SAVE THE DATE!

💫 AGeS Virtual Community Symposium 💫
🏆 Wednesday May 7, 2025, 11 am-3 pm ET 🏆
💥 Invited Talks💥
🔬 AGeS project presentations 🔬
🍀 Engage and interact with the geochronology community 🍀

All are invited 😊
March 11, 2025 at 8:21 PM
agesgeochronology.bsky.social
⚠️AGeS is now on Bluesky⚠️
‼️WOOP WOOP‼️

AGeS is an NSF-funded initiative consisting of micro-award programs to support inclusive 🌍 and collaborative 🤝 science using geochronology ⏳. Follow us for updates 📢 regarding application deadlines 🗓️ and community spotlights 🔦!

agesgeochronology.org
March 4, 2025 at 6:15 AM