Katerina Petronotis
@kpetronotis.bsky.social
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📥 181
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Geoscientist, former Manager of Science Operations at IODP/TAMU
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Katerina Petronotis
Joe Hingley
1 day ago
New paper out in Paleoceanography and Paleoclimatology: We used Cenozoic-spanning marine sediments to determine whether archived grain-size sorted sediments can be resurrected for biomarker analysis. Great to see my first piece of PhD work published, available
#openaccess
:
doi.org/10.1029/2025...
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Evaluating the Reliability of Grain‐Size Sorting for Organic Biomarker Analysis
We investigate the potential of using grain-size sorted marine sediments for biomarker analysis GDGT distributions are consistent regardless of grain-size sorting, and fine-grained sediment fract...
https://doi.org/10.1029/2025PA005289
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Katerina Petronotis
Dr. Thomas Ronge
2 days ago
Application deadline 𝘁𝗵𝗶𝘀 𝗙𝗿𝗶𝗱𝗮𝘆, February 20th! Details below 👇
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Katerina Petronotis
Dr. Or M. Bialik |📚|🔬|🌊|⚒️
5 days ago
If this is real, a bit alarming. Earth's magnetic field protects us from all sorts of cosmic nasties. Due to the way the magnetic fieds is generated, it sometimes reverses, weakening in the interim. This study shows that those reversals can be rather long. ⚒️🧪 Link:
www.nature.com/articles/s43...
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An essential next step. Spread the news!
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9 days ago
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Katerina Petronotis
Dr. Thomas Ronge
9 days ago
🚨It's time to dust-off your shelved scientific ocean drilling proposals! To help science teams prepare for developing an NSF drilling proposal, our office (SODCO) will host a webinar to walk proponents through the operational planning process. Sign up here:
columbiauniversity.zoom.us/meeting/regi...
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Dr. Thomas Ronge
13 days ago
🚨Job alert🚨 Want to work as a Chem Tech for
@us-sciod.bsky.social
at Texas A&M University? Then apply below! Responsibilities include prep lab containers for seagoing expeditions, mobilization/demobilization, sailing to operate instruments at sea...
tamus.wd1.myworkdayjobs.com/TAMU_Externa...
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Dr. Thomas Ronge
13 days ago
🚨The first paper from Exp403 to the Fram Strait is out. If you ever worked in the High Arctic, you know how hard it is to age-scale the sediments. Here we present an unprecedented record of key nannofossils in the region that will make this a bit easier.
www.sciencedirect.com/science/arti...
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Dr. Thomas Ronge
14 days ago
🚨Check out our new IODP paper on Kolumbo Volcano in Greece. Despite being one of Europe's most dangerous volcanoes not much is known about its eruptive history. The paper led by
@abigaillily.bsky.social
adds important insight into the Kolumbo-Santorini system
pubs.geoscienceworld.org/gsa/geology/...
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Brian Romans
15 days ago
Excited that this paper, led by former PhD student Natalia Varela (based on her dissertation), is now out! We use the occurrence & characteristics of thin, silty turbidites from the Ross Sea to interpret Antarctic Bottom Water outflow since ~3.3 Ma.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
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Welcome to bsky US Scientific Ocean Drilling!
@us-sciod.bsky.social
15 days ago
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Dr. Thomas Ronge
29 days ago
Only one month left to apply for the SODCO undergrad internship at
@tamu.bsky.social
! Deadline is February 20th.
sodco.org/opportunitie...
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Katerina Petronotis
Christine Siddoway
about 1 month ago
First 2026 issue
@pnas.org
features
@khorikawa.bsky.social
et al.'s work on deep marine sediment from
#AmundsenSea
.
#Pliocene
muds contain material from bedrock sources as far inland as
#EllsworthWhitmore
Mountains: a sign of major
#WAIS
retreat &
#glacial
-
#deglacial
switching
ow.ly/wHeq50XTv2n
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PNAS
Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans...
https://ow.ly/wHeq50XTv2n
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AAUP Texas A&M-College Station Chapter
about 1 month ago
Intercepted mail.... A former student sent this email to the provost and president and cc:ed one of our members:
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Nature Geoscience
about 2 months ago
⚒️ Article: The West Antarctic Ice Sheet responded to different natural forcing mechanisms than the East Antarctic Ice Sheet through the mid-Pliocene due to a greater sensitivity to oceanic feedbacks
@harpurcollege.bsky.social
www.nature.com/articles/s41...
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Spatially variable response of Antarctica’s ice sheets to orbital forcing during the Pliocene - Nature Geoscience
The West Antarctic Ice Sheet responded to different natural forcing mechanisms than the East Antarctic Ice Sheet through the mid-Pliocene due to a greater sensitivity to oceanic feedbacks, according t...
https://www.nature.com/articles/s41561-025-01840-y?utm_source=bluesky&utm_medium=social&utm_campaign=ngeo
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Katerina Petronotis
GEOMAR Helmholtz Centre for Ocean Research Kiel
about 1 month ago
Seit Mitte Dezember ist ein internationales Forschungsteam unter Leitung GEOMAR mit der METEOR unterwegs, um neue Erkenntnisse über das Vulkansystem vor Santorini zu gewinnen. ✏️ Auf
Oceanblogs.org
berichten sie über ihre Forschung und das Leben an Bord. Schaut vorbei:
www.oceanblogs.org/m215/
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Oceanblogs | www.oceanblogs.org
https://Oceanblogs.org
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Katerina Petronotis
Flavia Boscolo-Galazzo
about 1 month ago
www.nature.com/articles/s41...
@bjerknes.uib.no
@marumunibremen.bsky.social
@unibremen.bsky.social
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Oligocene deep ocean oxygen isotope variations primarily driven by temperature - Nature Geoscience
Large benthic oxygen isotope fluctuations in the Oligocene Southern Ocean primarily represent deep water temperature changes, suggesting the Antarctic ice sheet volume was relatively stable, according...
https://www.nature.com/articles/s41561-025-01878-y
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Katerina Petronotis
AAUP Texas A&M-College Station Chapter
about 1 month ago
From an email to one of our faculty members.... Not even Plato can escape censorship at Texas A&M!
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Dr. Thomas Ronge
about 1 month ago
New Year, New Us. Looks like our new Scientific Ocean Drilling branding is up. You can still find us at our usual spot on
@tamu.bsky.social
’s West Campus.
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Katerina Petronotis
Simon Rosenberg
about 1 month ago
Let's break the Internet with this today.....
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Mark Hamill
about 2 months ago
Thanks GlobalTV Canada! 🇨🇦
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Timothy Burke
about 2 months ago
The full spiked 60 Minutes CECOT package, clean & subtitled. 1/5
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Ben Williamson
2 months ago
Closing out my year with a journal editor shocker 🧵 Checking new manuscripts today I reviewed a paper attributing 2 papers to me I did not write. A daft thing for an author to do of course. But intrigued I web searched up one of the titles and that's when it got real weird...
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Heather Cox Richardson (TDPR)
2 months ago
Well, THIS seems like a good use of taxpayer money! /s
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Andrew Dessler
2 months ago
🚨Workshop alert🚨 High and Ultra-high Resolution Modeling of the Earth System April 13-15, 2026, in College Station TX.
sites.google.com/tamu.edu/tam...
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Celeste Labedz
2 months ago
It's over. Despite the fact that the academic council recommended against it, despite the fact that the program brought in more tuition than it cost, and despite the fact that Nebraskans need & deserve this expertise, Earth & Atmospheric Sciences will be cut.
www.dailynebraskan.com/news/adminis...
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BREAKING: ‘This hurts’: UNL eliminates 4 programs despite faculty, student pleas
The University of Nebraska-Lincoln eliminates the Earth and atmospheric sciences 8-0, educational administration 7-1, statistics 7-1, textiles, merchandising and fashion design 7-1 programs.
https://www.dailynebraskan.com/news/administration/breaking-this-hurts-unl-eliminates-4-programs-despite-faculty-student-pleas/article_e0d11a61-0fcc-4e66-b364-d16e89bea336.html
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Zack Labe
3 months ago
#Arctic
air temperature rank by month over the satellite era - now updated through November 2025... + Ranks: 1=warmest (red), 46/47=coldest (blue) + Download higher resolution version:
zacklabe.com/arctic-tempe...
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Katerina Petronotis
3 months ago
On the behalf of the Organizing Committee, I am thrilled to announce that the 2nd Submarine Volcanism Workshop will be held on 19–22 October 2026 in Santorini, Greece, and online 🌊🌋 📣 Interested in participating? Please sign up here:
lnkd.in/e4-nfpAK
🔎 More information provided in the flyer below 👇
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Katerina Petronotis
Emily Estes
3 months ago
New publication!! Featuring some of the most gorgeous rocks I’ve ever cored, tremendous work by an international, interdisciplinary team, and interesting implications for marine CDR. Article:
www.nature.com/articles/s41...
News & views:
www.nature.com/articles/s41...
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A geological carbon cycle sink hosted by ocean crust talus breccias - Nature Geoscience
Mass-wasting deposits that accumulated against mid-ocean ridge faults have high porosity in which calcium carbonate precipitated, storing seawater carbon dioxide, as revealed by cores of a 61-million-...
https://www.nature.com/articles/s41561-025-01839-5
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Katerina Petronotis
Dr. Thomas Ronge
3 months ago
@tamu.bsky.social
's new Scientific Ocean Drilling website just went online! Your hub to all things repository, sample requests, SOD reports, news, expeditions...
sod.tamu.edu
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Scientific Ocean Drilling
Making fundamental contributions to our understanding of the Earth.
https://sod.tamu.edu
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Katerina Petronotis
Dr. Thomas Ronge
3 months ago
And we’re up and running. First Antarctic cores have been CT scanned! The GCR has truly become a world-class core analysis facility!
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Katerina Petronotis
Fumihiko Ikegami
3 months ago
The underwater seismometer network is so great, as evidenced from yesterday's EQ off-Tohoku. Reposting unofficial visualization by
x.com/kotoho76/sta...
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Dr. Thomas Ronge
3 months ago
Looks like the Gulf Coast Repository
@tamu.bsky.social
is getting a new "toy" today. So exciting, can't wait to see it up and running!
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Katerina Petronotis
Dr. Nina Davtian (she/her/hers)
3 months ago
My co-authored marine GDGT « cookbook » review paper led by Peter Bijl 👨🔬 and
@kasiasliwinska.bsky.social
👩🔬 is now published in
@egubg.bsky.social
!
doi.org/10.5194/bg-2...
Again, I am so happy to be the
@cerege.bsky.social
@climatecerege.bsky.social
expert on
#GDGTs
!
@egu.eu
🧪 ⚒️ 🌊
#PaleoSky
(1/3)
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I heard it’s headed to Turkey to be scrapped. RIP
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4 months ago
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Katerina Petronotis
George Takei
4 months ago
Hear, hear!
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Zack Labe
5 months ago
#Arctic
air temperature rank by month over the satellite era - now updated through September 2025... + Ranks: 1=warmest (red), 46/47=coldest (blue) + Download higher resolution version:
zacklabe.com/arctic-tempe...
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Jeff Tiedrich
6 months ago
it shouldn't be easier to get a gun in America than the covid vaccine
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NPR
6 months ago
Delays and increased screenings for visas mean that many students didn't make it to campus on time – and that has some big implications for the economy.
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Colleges see significant drop in international students as fall semester begins
Delays and increased screenings for visas mean that many students didn't make it to campus on time – and that has some big implications for the economy.
https://n.pr/4fVJdK1
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Dr. Thomas Ronge
6 months ago
🚨Job alert Want to know what’s behind these doors? TAMU’s Gulf Coast Repository is looking for a Curatorial Specialist to support the GCR on shore & who will be sailing on expeditions operated by the Scientific Ocean Drilling Coordinating Office (SODCO).
tamus.wd1.myworkdayjobs.com/System-wide_...
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Katerina Petronotis
Dr. Thomas Ronge
6 months ago
The article made the cover of GRL, celebrating the now-retired JOIDES Resolution. Floating in the pitch-black Aegean Sea, the JR was an island of light and color.
agupubs.onlinelibrary.wiley.com/doi/epdf/10....
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Katerina Petronotis
NPR
7 months ago
Americans love olive oil — and import 95% of it. But tariffs are making it harder for Europeans to sell it to Americans.
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This Tuscan startup sold all its olive oil in the U.S. Then came Trump's tariffs
Americans love olive oil — and import 95% of it. But tariffs are making it harder for Europeans to sell it to Americans.
https://n.pr/45BmW0s
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Mueller, She Wrote
7 months ago
This message is powerful.
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Andrew Dessler
7 months ago
Austin is on the way out as TX most desirable city! Many of the rich and famous are instead moving to Bryan, TX. Elizabeth Holmes moved first, and she has convinced other rich people like Ghislaine Maxwell to join her here.
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EarthScope Consortium
7 months ago
Watch the seismic waves from today's magnitude 7.3 Alaska earthquake ripple across seismic stations in North America. More ➡️
loom.ly/kaJp5I0
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Tyler Norris
7 months ago
Mass layoffs in the US power sector begin following the Big Beautiful Bill: -20% RIF yesterday at New Leaf Energy -15% RIF today at Pine Gate Renewables -Enel suggesting potential exit from US renewable market More likely to come, along with project delays and cancellations
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Melissa Jo Peltier
7 months ago
These people are literally cult members.
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Andrew Dessler
8 months ago
This is great, Marshall. Thanks for posting it.
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George Takei
8 months ago
When history marks the point where we lost the future to China, this will be it.
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Paul Voosen
8 months ago
Japan has managed a huge accomplishment: fully covering the offshore parts of their subduction zones, which generate massive earthquakes and tsunamis, with more than 200 fiber-connected geophysical stations -- at a cost of hundreds of millions of dollars. Nothing else in the world can compare.
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Japan’s new seafloor monitors could reveal how ‘slow slip’ earthquakes turn into big ones
Network could add 20 minutes of tsunami warning at dangerous Nankai Trough
https://www.science.org/content/article/japan-s-new-seafloor-monitors-could-reveal-how-slow-slip-earthquakes-turn-big-ones
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NPR
8 months ago
The Metals Company is applying for permission from the Trump administration to mine for nickel and cobalt beneath a remote patch of the Pacific Ocean. Other countries say the minerals aren't America's to mine.
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This company wants to be the first to mine the ocean floor, with Trump's help
The Metals Company is applying for permission from the Trump administration to mine for nickel and cobalt beneath a remote patch of the Pacific Ocean. Other countries say the minerals aren't America's to mine.
https://n.pr/44rR9xe
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