Gulf Coast Repository - GCR

Gulf Coast Repository - GCR Managing scientific ocean drilling archives and research lab facilities, and providing training to geoscientists A&M University.

08/28/2026

The Section Half Multisensor Logger (SHMSL) measures basic physical properties, like color reflectance and magnetic susceptibility, to identify lithologic units and stratigraphic correlation. More information on the SHMSL can be found here: https://gcr.tamu.edu/instruments/shmsl.html

☀️ What a busy summer in the lab! ☀️We had three fantastic student interns with us this summer—Gwen Hoch, Karla Sanabria...
08/26/2026

☀️ 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. 🔬🌊

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! ✨

08/21/2026

🔬 Instrument Spotlight: CHNS Elemental Analyzer
What is your sample made of?
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.

By measuring these four key elements, researchers 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

✨ Curious about what your samples might reveal but don't have an EA? Reach out and let us help solve the mystery!

Check out the GCR on YouTube!We post website walk-throughs, instrument spotlights, and other GCR updates.Subscribe here:...
08/14/2026

Check out the GCR on YouTube!
We post website walk-throughs, instrument spotlights, and other GCR updates.

Subscribe here: youtube.com/GCRepository

🌟 Student Spotlight: Karla Sanabria Seda This summer, we were thrilled to host Karla Sanabria Seda, an undergraduate stu...
08/12/2026

🌟 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:

"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. 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."

We're so grateful Karla spent part of her summer with us and wish her all the best in her future scientific endeavors! 🌎🔬

08/05/2026

GCR CORE School participant, Olabayo, explains his project in the Physical Properties lab.

Last week, GCR Curator Michelle Penkrot and GCR Superintendent Chad Broyles attended the Marine and Lacustrine Geologic ...
07/31/2026

Last week, GCR Curator Michelle Penkrot and GCR Superintendent Chad Broyles attended the Marine and Lacustrine Geologic Curators meeting at the University of Rhode Island Graduate School of Oceanography.
They connected with fellow repository curators to discuss challenges and share best practices in geologic collection management, and strengthen collaborations across the community.
A highlight of the meeting was touring the URI Marine Geologic Sample Laboratory, Inner Space Center, and Ocean Robotics Laboratory!

🚨PSA: There's still time to submit an abstract for !🚨Have you been working with cores from a repository?Consider submit...
07/30/2026

🚨PSA: There's still time to submit an abstract for !🚨

Have you been working with cores from a repository?
Consider submitting to "Revisiting the Archives: New Discoveries from Existing Core Collections", a session highlighting new research using legacy repository materials.
📆Abstract submission deadline: August 6
Submit and learn more about the sessions here: https://connects.geosociety.org/program/technical-sessions

Also, don't miss the Scientific Ocean Drilling Data short course in Denver on October 10, immediately before GSA Connects!
More information: https://store.geosociety.org/products/sc26cn16

At the GCR’s 2026 CORE School, participants delved into four labs: core description, physical properties, paleomagnetism...
07/29/2026

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

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