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Gulf Coast Repository @gcrepository.bsky.social · 25/09/2026

With the start of the Fall 2026 semester, we welcome our student workers back to the GCR. Meet our student team and learn more about what our student assistants do! #tamu #jobsforaggies #GCR #NSFfunded

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Gulf Coast Repository @gcrepository.bsky.social · 23/09/2026

🔬 User Spotlight: Haolin Zhou We’re highlighting Haolin Zhou, a postdoctoral fellow working with Dr. Lucien Nana Yobo in the Department of Geology and Geophysics at Texas A&M University. Here’s what Haolin shared about his research using the GCR facilities:

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Gulf Coast Repository @gcrepository.bsky.social · 18/09/2026

The GCR is available for a wide range of workshops and meetings, including legacy research projects and outreach. Early consultation with the GCR is strongly encouraged, and GCR staff can provide guidance and suggestions prior to funding proposal submission. gcr.tamu.edu/outreach/pla...

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Gulf Coast Repository @gcrepository.bsky.social · 16/09/2026

Graduate students, Breno Goldberg Araujo and Anuska Pudasaini, from @uh-earth-atm-sci.bsky.social are back again for another visit! Breno has visited the GCR several times now to collect samples for his graduate research.

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Gulf Coast Repository @gcrepository.bsky.social · 11/09/2026

While you were immersed in Christopher Nolan's retelling of the Odyssey, did you know that Odysseus' journey home took him past (or very close to) many scientific ocean drilling sites? #GCR #NSFfunded #scientificoceandrilling #odyssey

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Gulf Coast Repository @gcrepository.bsky.social · 09/09/2026

Residues & Returned Samples. After samples are processed on the ship and in researchers' labs they are returned to the GCR. Here we sort & store them by Expedition. This collection is useful for education requests and intervals that have been depleted in the core collection. #GCR #NSFfunded

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Gulf Coast Repository @gcrepository.bsky.social · 02/09/2026

Texas A&M PhD student Isaac Korsah and his advisor, Dr. Julia Reece, recently visited the GCR to collect samples from IODP Expedition 308 cores, collected in the Gulf of Mexico. It was a special experience for them to get to sample these cores as Julia sailed on Expedition 308 as a sedimentologist!

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Gulf Coast Repository @gcrepository.bsky.social · 28/08/2026

The Section Half Multisensor Logger (SHMSL) measures basic physical properties, like color reflectance and magnetic susceptibility, to identify lithologic units and stratigraphic correlation. Visit our website for more information on the SHMSL.

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Gulf Coast Repository @gcrepository.bsky.social · 26/08/2026

🔬☀️ What a busy summer in the lab! ☀️ We had three fantastic student interns with us this summer—Gwen Hoch, Karla Sanabria Seda, and Maverick Dawes! They gained hands-on research experience, contributed to a variety of projects, and brought plenty of energy and curiosity to the lab. 🔬🌊

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Gulf Coast Repository @gcrepository.bsky.social · 21/08/2026

🔬 Instrument Spotlight: CHNS Elemental Analyzer The CHNS Elemental Analyzer measures the amount of Carbon (C), Hydrogen (H), Nitrogen (N), and Sulfur (S) in a wide variety of materials, including sediments, soils, plants, and other environmental samples.

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Gulf Coast Repository @gcrepository.bsky.social · 14/08/2026

Check out the GCR on YouTube! We post website walk-throughs, instrument spotlights, and other GCR updates. Subscribe here: youtube.com/GCRepository

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Gulf Coast Repository @gcrepository.bsky.social · 12/08/2026

🌟 Student Spotlight: Karla Sanabria Seda 🌟 This summer, we were thrilled to host Karla Sanabria Seda, an undergraduate student from Tulane University! We asked Karla to tell us a little about the research she worked on this summer:

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Gulf Coast Repository @gcrepository.bsky.social · 05/08/2026

GCR CORE School participant, Olabayo, explains his project in the Physical Properties lab. @us-sciod.bsky.social #GCR #NSFfunded #geology

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Gulf Coast Repository @gcrepository.bsky.social · 31/07/2026

Last week, GCR Curation staff attended the Marine and Lacustrine Geologic Curators meeting at the University of Rhode Island. They connected with other repositories to discuss challenges and best practices in collections management. One meeting highlight was a tour of URI facilities! #GCR #geology

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Gulf Coast Repository @gcrepository.bsky.social · 30/07/2026

Still time to submit an abstract for #GSAConnects2026! Working with repository cores? Submit to "Revisiting the Archives: New Discoveries from Existing Core Collections." Deadline: Aug. 6 buff.ly/av0odGY Also: Ocean Drilling Data short course: Denver, Oct. 10, before GSA! buff.ly/5z8aWDm

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Gulf Coast Repository @gcrepository.bsky.social · 28/07/2026

At the GCR’s 2026 CORE School, participants delved into four labs: core description, physical properties, paleomagnetism, and biostratigraphy. Each provides critical pieces of the story we can learn from seafloor cores.

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Gulf Coast Repository @gcrepository.bsky.social · 19/07/2026

Happy National Ice Cream Day from Patrick the Safety Penguin! Ice cream was a well-loved treat aboard the JOIDES Resolution, and today we are celebrating one of the sweetest crew favorites. What's your go-to ice cream flavor? 🍦

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Dr. Thomas Ronge @thomasronge.bsky.social · 09/07/2026

You can also check out some of the holes‘ cores at the @gcrepository.bsky.social.

A core section being pulled out of a rack in the repository.

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Gulf Coast Repository @gcrepository.bsky.social · 10/07/2026

Take a look inside the GCR and see how it supports the scientific community through world-class facilities, advanced analytical equipment, and one of the world's largest collections of ocean drilling core samples. Thank you to the TAMU DOR Communications team for putting together this video! #GCR

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Gulf Coast Repository @gcrepository.bsky.social · 02/07/2026

This week, we welcomed students from across the world for the 2026 OCEAN CORE Academy. The program introduces participants to scientific ocean drilling through work with ocean cores, data analysis, and field experiences, while also exploring careers and connecting with mentors in the field.

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Gulf Coast Repository @gcrepository.bsky.social · 24/06/2026

Unlocking the Earth's secrets...with X-Ray vision! Introducing the Geotek Rotating X-Ray CT Scanner, the latest in GCR's arsenal of core-scanning instruments. CT Scanning is non-destructive, providing information on the internal structure of cores that are not available upon visual inspection alone.

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Gulf Coast Repository @gcrepository.bsky.social · 17/06/2026

The GCR hosted Dr. Brandee Carlson and her research group from @uh-earth-atm-sci.bsky.social to assist with splitting and sampling cores from Matagorda Bay, Texas. #ScienceBehindTheScenes #Geomorphology #Sedimentology #GCR #NSFfunded

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Gulf Coast Repository @gcrepository.bsky.social · 14/06/2026

On Shark Awareness Day, we recognize the vital role sharks play in healthy oceans. Through scientific ocean drilling, researchers study Earth’s history beneath the seafloor to better understand environmental change and protect marine life. #SharkAwarenessDay #ScientificOceanDrilling #GCR #NSFfunded

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Gulf Coast Repository @gcrepository.bsky.social · 10/06/2026

The Gulf Coast Repository receives and processes hundreds of cores every year, yet the excitement of splitting a new core to reveal what's inside remains the same! In the words of Senior Technician David Houpt, " We are after all, the first human beings to see these sediments!" #GCR #NSFfunded

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Gulf Coast Repository @gcrepository.bsky.social · 08/06/2026

On World Oceans Day, we celebrate the blue heart of our planet. Oceans regulate climate, support ecosystems, and preserve Earth’s history beneath the seafloor. Through scientific ocean drilling, we uncover stories beneath the waves, helping us understand Earth’s past. #WorldOceansDay #GCR #NSFfunded

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Gulf Coast Repository @gcrepository.bsky.social · 02/06/2026

Happy National #Dinosaur Day 🦖 from the GCR! The K-Pg boundary event is associated with the mass extinction event that killed the dinosaurs 66 million years ago! Expedition 364 ⛴️ explored the Chicxulub crater ☄️ and discovered the impact it had on the world and our dinosaur friends! #GCR #NSFfunded

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Gulf Coast Repository @gcrepository.bsky.social · 29/05/2026

Our very first GCR user spotlight features Anuska Pudasaini, a PhD Candidate at the Department of Earth and Atmospheric Sciences at the University of Houston. Anuska analyzed grain sizes of Antarctic sediments using our Bettersizer S3 Plus Particle Size and Shape Analyzer. #GCR #NSFfunded

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Gulf Coast Repository @gcrepository.bsky.social · 27/05/2026

🔬 Instrument Spotlight: Inductively Coupled Plasma- Optical Emission Spectrometry The ICP-OES nebulizes the sample into a super hot plasma and measures the light emitted by elements to figure out their concentration.

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Gulf Coast Repository @gcrepository.bsky.social · 20/05/2026

🔬 Instrument Spotlight: Coulometer This measures carbonate concentration in a variety of samples! 🧪 Hydrochloric acid reacts with the sample to release carbon dioxide gas and the coulometer uses an electrochemical reaction to measure how much effort it takes to cancel out the CO2 released.

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Gulf Coast Repository @gcrepository.bsky.social · 18/05/2026

Have you ever wondered how microbiology samples were taken on the Joides Resolution? Check out @heikezimm.bsky.social on Exp 400 discuss #lablife at sea and how ancient DNA links organisms to changes in sea ice, climate and the ocean. 📽️ Watch Here:

youtube.com

The Ancient Mud

The field of sedimentary ancient DNA, which studies ancient genetic signals preserved in sediments, allows us to reveal ecosystem-wide responses to past environmental changes beyond what has so far…

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Gulf Coast Repository @gcrepository.bsky.social · 15/05/2026

Do you want to work with scientific ocean drilling samples or data and are unsure where to start? Is the sheer volume of data and reports proving difficult to sift through? Then this post is for YOU! #GCR #NSFfunded #ScientificOceanDrilling

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Gulf Coast Repository @gcrepository.bsky.social · 13/05/2026

This ODP Leg 139 core comes from a massive sulfide deposit in the Juan de Fuca Ridge. Chemical reactions within the sediments continued years after the core was collected and stored at the GCR, leading to the precipitation of these needle-like crystals. #gcr #scientificoceandrilling #nsffunded

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Gulf Coast Repository @gcrepository.bsky.social · 06/05/2026

🔬 Instrument Spotlight: Bead Maker We fuse sediment into glass beads for ICP-OES, creating uniform samples for precise elemental + trace metal analysis. No lab equipment? Send us your samples and we’ll handle prep + analysis. #GCR #LabLife #Geochemistry #ICP

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Gulf Coast Repository @gcrepository.bsky.social · 29/04/2026

The Scientific Ocean Drilling Department (SODCO & GCR) visited the Klein ISD Girls in STEM Day to share microfossils and sediments in the Explore Room! #GCR #NSFfunded

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U.S. Scientific Ocean Drilling @us-sciod.bsky.social · 28/04/2026

New report! Advancing Future Ocean Drilling in the United States (FOCUS) was a community effort to identify priorities for US SciOD in the first phase of post-IODP drilling, with an emphasis on needs for new expeditions. Read the report at usoceandiscovery.org/focus. Thanks to all who participated!

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Gulf Coast Repository @gcrepository.bsky.social · 28/04/2026

How can records of the past inform our understanding of extreme events? Join the National Academies on April 29 for a webinar releasing a new report on a proposed Center for Paleoenvironmental Records of Extreme Events (CPREE). Register: events.nationalacademies.org/46602 #ExtremeEvents

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Gulf Coast Repository @gcrepository.bsky.social · 16/04/2026

Dr. Laya and GEOL 306 stopped by the GCR for their lab last week to take core descriptions of the fossilized corals drilled during IODP Exp 310. These cores provide valuable insights to changes in sea level and SST during the Pleistocene as a result of melting polar ice sheets. 🪸 #GCR #NSFfunded

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U.S. Scientific Ocean Drilling @us-sciod.bsky.social · 14/04/2026

Teachers and scientists – apply now for TRACX 2026 at the Gulf Coast Repository! Scientists: forms.gle/sSf8yXS9jQCoNDAv6 Teachers (grades 5-12): forms.gle/Kfa1dLHhdpHdd8uE7 More on TRACX: news.climate.columbia.edu/2026/01/15/tracx-program-connects-educators-worldwide-with-ocean-science-research/

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Gulf Coast Repository @gcrepository.bsky.social · 09/04/2026

Welcome to the GCR! We serve the global scientific community by preserving scientific ocean drilling sub-seafloor samples, facilitating cutting-edge research through access to geologic samples and world class laboratory facilities, and training the next generation of geoscientists. #GCR #NSFfunded

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