🔬 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.

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:

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

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

🔬 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

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

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!

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

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

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/

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