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

Are you interested in touring the GCR? Check out our website at gcr.tamu.edu/info/visit.h... and reach out to gcr@tamu.edu to schedule a tour! #GCR #NSFfunded #ScienceBehindTheScenes

gcr.tamu.edu

Gulf Coast Repository • Visiting the GCR

Gulf Coast Repository

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

This past week, we were excited to welcome @wellner.bsky.social and her class, with members of Dr. William Struble's lab from @uh-earth-atm-sci.bsky.social to the GCR! We gave them a behind-the-scenes look at our facilities, collections, and the work we do to support scientific ocean drilling.

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Gulf Coast Repository @gcrepository.bsky.social · 02/10/2026

If needed, you can also use the GCR chem lab to prepare your samples. #GCR #NSFfunded #sedimentology #lablife #GCR #NSFfunded To request analyses, go to gcr.tamu.edu/labs/request...

gcr.tamu.edu

Gulf Coast Repository • Request Analyses

Gulf Coast Repository

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Gulf Coast Repository @gcrepository.bsky.social · 02/10/2026

🔬 Did you know that you can measure the size AND shape of your samples, all within the span of a few seconds? The Bettersizer S3 Plus at #GCR can measure particle sizes between 0.01-3500μm, as well as shape parameters (e.g. Length/Diameter, circularity, sphericity) of particles between 2-3500μm.

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

If you are a current Texas A&M student looking for a job here at the GCR or want more information, look up our job posting on jobsforaggies.tamu.edu or check out the links in our bio. Position title: Student Assistant - Gulf Coast Repository ID: 416227

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

We often see our students unloading inventory, racking core tubes, climbing ladders, and working in refrigerated environments (where our cores are stored!). Visiting scientists are also assisted by our students with sampling and other needs they may have.

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

Our students primary duties include sampling collections of sediment and rock cores drilled from the floors of the world’s oceans in addition to entering and maintaining sampling data into computerized databases. They also update computer inventories of thin sections, smear slides and residues.

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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

"...Our findings will help us estimate how these processes affect the movement and storage of carbon in the rocks." We’re happy to support Haolin’s research and the work being done through the GCR! 🪨🔬 #UserSpotlight #Geology #Geochemistry #Research #GCR #TAMU #LabLife #ScientificOceanDrilling

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

"...We measure the concentrations of major elements and thermal maturity of petrogenic organic matter to understand how pristine sedimentary rocks are altered as tectonic uplift brings them toward the surface and exposes them to chemical weathering..."

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

"I am Haolin Zhou, a postdoctoral fellow working with Dr. Lucien Nana Yobo at the Department of Geology and Geophysics, TAMU. Using the GCR facilities, we are analyzing a drilled core collected from a mountain ridge in the Santa Ynez Mountains, California..."

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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

He is interested in select millimeter-scale laminae from IODP Expedition 379 to identify differences in the depositional processes responsible for sediment accumulation within a contourite drift deposit. #GCR #NSFfunded #ScientificOceanDrilling #Sedimentology

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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

Today, our scientific Odyssey continues, with research still ongoing on cores recovered during these expeditions.

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

Cores from DSDP Legs 13 and 42 provided the first scientific evidence showing that 5 million years ago the Mediterranean Sea was a desert while sediments from ODP Leg 160 provided insight into climate variability in this region.

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

During IODP Exp 402 and ODP Leg 107 marine geologists drilled into basement rocks of the Tyrrhenian Basin; and investigated the eruption history of the Hellenic volcanic arc on IODP Exp 398.

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

Odysseus encountered mythical beings such as the Cyclops and the Lastrygonians, Scylla and Charybdis, but thankfully, scientific ocean drilling expeditions are much less perilous! Instead, over expeditions spanning five decades, scientists have uncovered many of the earth's secrets.

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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

As they head back to school, we’re wishing them all the best for the semester ahead! We loved having them with us and hope they have a fantastic year! ✨ #StudentSpotlight #Internship #STEM #Research

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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

✨ Curious about what your samples might reveal but don't have an EA? Reach out and let us help solve the mystery! #InstrumentSpotlight #elementalanalyzer #Geochemistry #LabLife #OceanDrilling #ScienceTools

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

This is helpful because by measuring these four key elements you can: 🌱 Determine the amount of organic matter present 🌊 Track nutrient cycling in the environment 🪨 Study sediment and soil composition 📈 Calculate elemental ratios (like C:N) to help identify the source of the organic material

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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

We're so grateful Karla spent part of her summer with us and wish her all the best in her future scientific endeavors! 🌎🔬 #GCR #Geochemistry #LabLife #ScientificOceanDrilling #undergrad #stem

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

I worked with Dr. Justin Dodd on the study of subglacial marine sediment cores recovered from the Crary Ice Rise (CIR-1) beneath the Ross Ice Shelf. Our research used geochemical proxies to reconstruct past oceanographic conditions during warmer periods of Earth’s history."

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

"My name is Karla Sanabria Seda, and I am an undergraduate student at Tulane University. This summer, I participated in the NSF Research Experiences for Undergraduate (REU): Observing the Ocean...

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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

Through providing participants with hands on experience using instrumentation and analyzing seafloor cores, CORE School is building expertise in scientific ocean drilling. @us-sciod.bsky.social

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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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Reposted by Gulf Coast Repository

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

RXCT scans reveal sedimentary structures, grain sizes, lithological changes, bioturbation and fossil-rich layers in 3-D. At GCR, users can generate 2D images or full 3D scans of whole rounds or section halves of lithified or unconsolidated sediments as well as discrete samples of various diameters.

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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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