Katerina Petronotis
@kpetronotis.bsky.social
Geoscientist, former Manager of Science Operations at IODP/TAMU
Reposted by Katerina Petronotis
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...
Great to see my first piece of PhD work published, available #openaccess: doi.org/10.1029/2025...
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...
doi.org
February 17, 2026 at 3:16 PM
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...
Great to see my first piece of PhD work published, available #openaccess: doi.org/10.1029/2025...
Reposted by Katerina Petronotis
Application deadline 𝘁𝗵𝗶𝘀 𝗙𝗿𝗶𝗱𝗮𝘆, February 20th!
Details below 👇
Details below 👇
🚨We're looking for two US-based undergrad-interns with geo background to work on research projects using GCR laboratory capabilities.
The internship includes a stipend, housing ,travel to/from College Station, travel/registration fees to present their work at AGU/GSA26.
sodco.org/opportunitie...
The internship includes a stipend, housing ,travel to/from College Station, travel/registration fees to present their work at AGU/GSA26.
sodco.org/opportunitie...
February 16, 2026 at 3:19 PM
Application deadline 𝘁𝗵𝗶𝘀 𝗙𝗿𝗶𝗱𝗮𝘆, February 20th!
Details below 👇
Details below 👇
Reposted by Katerina Petronotis
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...
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...
February 13, 2026 at 3:11 PM
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...
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...
An essential next step. Spread the news!
SODCO invites you to a webinar on the new operational planning process for NSF drilling proposals. We will introduce new planning materials, outline how the operations plan will be constructed, and answer questions.
Learn more and register at sodco.org/operational-planning
Learn more and register at sodco.org/operational-planning
February 9, 2026 at 8:58 PM
An essential next step. Spread the news!
Reposted by Katerina Petronotis
🚨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...
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...
a cat is crawling on the floor with the words `` you know what time it is '' below it .
Alt: a cat is crawling on the floor with the words `` you know what time it is '' below it .
media.tenor.com
February 9, 2026 at 3:28 PM
🚨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...
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...
Reposted by Katerina Petronotis
🚨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...
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...
February 5, 2026 at 9:03 PM
🚨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...
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...
Reposted by Katerina Petronotis
🚨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...
www.sciencedirect.com/science/arti...
February 5, 2026 at 2:02 PM
🚨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...
www.sciencedirect.com/science/arti...
Reposted by Katerina Petronotis
🚨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/...
pubs.geoscienceworld.org/gsa/geology/...
February 4, 2026 at 5:38 PM
🚨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/...
pubs.geoscienceworld.org/gsa/geology/...
Reposted by Katerina Petronotis
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/...
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/...
February 3, 2026 at 3:25 PM
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/...
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/...
Welcome to bsky US Scientific Ocean Drilling! @us-sciod.bsky.social
February 3, 2026 at 7:21 PM
Welcome to bsky US Scientific Ocean Drilling! @us-sciod.bsky.social
Reposted by Katerina Petronotis
Only one month left to apply for the SODCO undergrad internship at @tamu.bsky.social! Deadline is February 20th.
sodco.org/opportunitie...
sodco.org/opportunitie...
January 20, 2026 at 5:00 PM
Only one month left to apply for the SODCO undergrad internship at @tamu.bsky.social! Deadline is February 20th.
sodco.org/opportunitie...
sodco.org/opportunitie...
Reposted by Katerina Petronotis
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
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...
ow.ly
January 8, 2026 at 10:17 PM
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
Reposted by Katerina Petronotis
Intercepted mail....
A former student sent this email to the provost and president and cc:ed one of our members:
A former student sent this email to the provost and president and cc:ed one of our members:
January 9, 2026 at 12:27 AM
Intercepted mail....
A former student sent this email to the provost and president and cc:ed one of our members:
A former student sent this email to the provost and president and cc:ed one of our members:
Reposted by Katerina Petronotis
⚒️ 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...
@harpurcollege.bsky.social
www.nature.com/articles/s41...
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...
www.nature.com
January 2, 2026 at 5:00 PM
⚒️ 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...
@harpurcollege.bsky.social
www.nature.com/articles/s41...
Reposted by Katerina Petronotis
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/
✏️ Auf Oceanblogs.org berichten sie über ihre Forschung und das Leben an Bord.
Schaut vorbei: www.oceanblogs.org/m215/
Oceanblogs | www.oceanblogs.org
Oceanblogs.org
January 7, 2026 at 11:59 AM
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/
✏️ Auf Oceanblogs.org berichten sie über ihre Forschung und das Leben an Bord.
Schaut vorbei: www.oceanblogs.org/m215/
Reposted by Katerina Petronotis
Reposted by Katerina Petronotis
From an email to one of our faculty members....
Not even Plato can escape censorship at Texas A&M!
Not even Plato can escape censorship at Texas A&M!
January 6, 2026 at 8:15 PM
From an email to one of our faculty members....
Not even Plato can escape censorship at Texas A&M!
Not even Plato can escape censorship at Texas A&M!
Reposted by Katerina Petronotis
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.
January 6, 2026 at 11:22 PM
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.
Reposted by Katerina Petronotis
Let's break the Internet with this today.....
Four generations of my family have served our country. Service is in my blood. The President wouldn’t know anything about that.
January 5, 2026 at 7:04 PM
Let's break the Internet with this today.....
Reposted by Katerina Petronotis
Thanks GlobalTV Canada! 🇨🇦
BREAKING: WATCH the full 60 Minutes CECOT segment here. This was sent to me anonymously. It appears to be the segment CBS' Bari Weiss killed. www.muellershewrote.com/p/watch-the-...
WATCH: The 60 Minutes CECOT Segment
I was sent the CECOT segment anonymously in a group chat.
www.muellershewrote.com
December 23, 2025 at 9:18 AM
Thanks GlobalTV Canada! 🇨🇦
Reposted by Katerina Petronotis
The full spiked 60 Minutes CECOT package, clean & subtitled. 1/5
December 23, 2025 at 1:28 AM
The full spiked 60 Minutes CECOT package, clean & subtitled. 1/5
Reposted by Katerina Petronotis
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...
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...
December 19, 2025 at 5:20 PM
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...
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...
Reposted by Katerina Petronotis
Well, THIS seems like a good use of taxpayer money! /s
December 16, 2025 at 1:56 AM
Well, THIS seems like a good use of taxpayer money! /s
Reposted by Katerina Petronotis
🚨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...
High and Ultra-high Resolution Modeling of the Earth System
April 13-15, 2026, in College Station TX.
sites.google.com/tamu.edu/tam...
December 10, 2025 at 5:58 PM
🚨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...
High and Ultra-high Resolution Modeling of the Earth System
April 13-15, 2026, in College Station TX.
sites.google.com/tamu.edu/tam...
Reposted by Katerina Petronotis
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...
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...
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.
www.dailynebraskan.com
December 6, 2025 at 5:35 PM
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...
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...