Tracy Frank
@drtracydfrank.bsky.social
Geology professor born at 321 ppm CO2. Sedimentologist and geochemist who studies deep time paleoclimate. #Fulbright Alumna. Opinions are my own.
For #ThinSectionThursday, a bryozoan grainstone/rudstone from the Permian of Western Australia.
September 4, 2025 at 1:20 PM
For #ThinSectionThursday, a bryozoan grainstone/rudstone from the Permian of Western Australia.
Are you looking to share your work on Permian biotic crises at #GSAConnects in San Antonio? If so, check out session T198!
June 2, 2025 at 4:11 PM
Are you looking to share your work on Permian biotic crises at #GSAConnects in San Antonio? If so, check out session T198!
Happy #ThinSectionThursday! Here are paired PL and XPL images of a carbonate grainstone (latest Pliocene, Jamaica). Skeletal grains are overgrown by fibrous cement, which fills primary porosity. Quiz - can you ID the skeletal grains? 🤔
April 24, 2025 at 12:43 PM
Happy #ThinSectionThursday! Here are paired PL and XPL images of a carbonate grainstone (latest Pliocene, Jamaica). Skeletal grains are overgrown by fibrous cement, which fills primary porosity. Quiz - can you ID the skeletal grains? 🤔
Join the Department of Earth Sciences @uconn.bsky.social for a screening TONIGHT of "The Memory of Darkness, Light, and Ice," 6 PM, Student Union Theatre. Learn how the discovery of a long-lost sediment core revealed startling details about the melting of the Greenland Ice Sheet & future sea level.
April 21, 2025 at 7:04 PM
Join the Department of Earth Sciences @uconn.bsky.social for a screening TONIGHT of "The Memory of Darkness, Light, and Ice," 6 PM, Student Union Theatre. Learn how the discovery of a long-lost sediment core revealed startling details about the melting of the Greenland Ice Sheet & future sea level.
Lacustrine ooids and coated grains (mainly ostracods) from the Eocene Green River Formation, UT (USA). #ThinSectionThursday
March 20, 2025 at 12:57 PM
Lacustrine ooids and coated grains (mainly ostracods) from the Eocene Green River Formation, UT (USA). #ThinSectionThursday
the cold and wind didn’t stop #StandUpForScience in Hartford,CT! @blumenthal.senate.gov stopped by to show his support and encourage us to speak truth to power!
March 7, 2025 at 7:55 PM
the cold and wind didn’t stop #StandUpForScience in Hartford,CT! @blumenthal.senate.gov stopped by to show his support and encourage us to speak truth to power!
Hello, CT! If you can, please come show your support of science on March 7. Strong science = strong America.
February 22, 2025 at 3:48 PM
Hello, CT! If you can, please come show your support of science on March 7. Strong science = strong America.
Paired thin section images from a formanifer-rich limestone of Eocene age from France (Left - plane light; Right - cross polarized light). Enjoy! #ThinSectionThursday
February 13, 2025 at 1:49 PM
Paired thin section images from a formanifer-rich limestone of Eocene age from France (Left - plane light; Right - cross polarized light). Enjoy! #ThinSectionThursday
Rosie, meet Shuggy.
February 1, 2025 at 6:02 PM
Rosie, meet Shuggy.
For #ThinSectionThursday, glendonites of probable Miocene age from the NW margin of Greenland (TS and drillcore). Glendonites are pseudomorphs after Ikaite, a metastable CaCO3 hexahydrate that decomposes rapidly to calcite by losing most of its water once removed from near-freezing conditions.
January 9, 2025 at 2:07 PM
For #ThinSectionThursday, glendonites of probable Miocene age from the NW margin of Greenland (TS and drillcore). Glendonites are pseudomorphs after Ikaite, a metastable CaCO3 hexahydrate that decomposes rapidly to calcite by losing most of its water once removed from near-freezing conditions.
I'm delighted to share this new article published in Evolving Earth, which assesses the reliability of chemical weathering indices for deep time paleoclimate reconstructions.
doi.org/10.1016/j.ev...
doi.org/10.1016/j.ev...
December 20, 2024 at 2:16 PM
I'm delighted to share this new article published in Evolving Earth, which assesses the reliability of chemical weathering indices for deep time paleoclimate reconstructions.
doi.org/10.1016/j.ev...
doi.org/10.1016/j.ev...
Not a bouncy castle, but a wonderful interactive display on scientific ocean drilling. Get in board the JOIDES Resolutin and check it out! #AGU24
December 11, 2024 at 4:14 PM
Not a bouncy castle, but a wonderful interactive display on scientific ocean drilling. Get in board the JOIDES Resolutin and check it out! #AGU24
Happy #ThinSectionThursday! For your delectation, a skeletal grainstone from the Permian of Western Australia. Lots of crinoid, brachiopod, and bryozoan fragments in this view.
December 5, 2024 at 4:55 PM
Happy #ThinSectionThursday! For your delectation, a skeletal grainstone from the Permian of Western Australia. Lots of crinoid, brachiopod, and bryozoan fragments in this view.
For #ThinSectionThursday, Miocene glauconite recovered from the western Greenland margin, in thin section and core. Broadly speaking, glauconite is considered a diagnostic mineral for continental shelf marine environments where rates of sediment accumulation are very low. And it just looks cool.
November 21, 2024 at 2:05 PM
For #ThinSectionThursday, Miocene glauconite recovered from the western Greenland margin, in thin section and core. Broadly speaking, glauconite is considered a diagnostic mineral for continental shelf marine environments where rates of sediment accumulation are very low. And it just looks cool.
Is there a North American supplier for these foram picking trays?
November 20, 2024 at 1:30 PM
Is there a North American supplier for these foram picking trays?
Anyone interested in bringing #ThinSectionThursday to bsky? I'll start with these PL-XPL paired images of halimeda and coralline algae fragments surrounded by fibrous high-Mg calcite cement. Pliocene Hope Gate Formation, Jamaica.
November 14, 2024 at 2:01 PM
Anyone interested in bringing #ThinSectionThursday to bsky? I'll start with these PL-XPL paired images of halimeda and coralline algae fragments surrounded by fibrous high-Mg calcite cement. Pliocene Hope Gate Formation, Jamaica.
Did you get to wear a fabulous hat like this one?
August 19, 2024 at 12:26 AM
Did you get to wear a fabulous hat like this one?
Had a great time in Bremen this week with the IODP Exp 400 Science Team. We took thousands of samples from the cores we collected to support our research goals.
March 23, 2024 at 6:33 AM
Had a great time in Bremen this week with the IODP Exp 400 Science Team. We took thousands of samples from the cores we collected to support our research goals.
All aboard the JR for Expedition 400 to the Western Greenland Margin!
August 14, 2023 at 5:50 AM
All aboard the JR for Expedition 400 to the Western Greenland Margin!