Squids are thriving in the modern oceans, but little is known about their past due to their patchy fossil record. New #Geology research provides insight through Cretaceous squid fossils: geosociety.co/Ikegami_et_al Photo courtesy Shin Ikegami

Some of the world's leading voices in geoheritage are joining us virtually for two special Geoheritage Pardee Symposium Webinars following GSA Connects 2026. 📅 Part I - 12 November: geosociety.co/Geoheritage-Webinar-I 📅 Part II - 17 November: geosociety.co/Geoheritage-Webinar-II

Could iron microbialites help reveal past life on Mars? New #GSABulletin research uses Spain’s Río Tinto as a Martian analog to investigate biosignatures—and the challenges of detecting life with rover instruments. geosociety.co/Pei_et_al #Mars #PlanetaryScience Photo by NASA on Unsplash.

Please join us in welcoming Alyssa Pietraszek as GSA's 2026–2027 Science Communication Fellow! The GSA Science Communication Fellowship provides early-career science communicators with hands-on experience while advancing GSA's mission to share geoscience with the world.

Help shape the future of GSA. Self-nominations are now open for the Graduate Research Grants, Bromery Award, and Research Award Committees. Members at all career stages are encouraged to apply. Submit by 17 August 2026. Learn more: geosociety.co/serve

What happens to a riverbed in the quiet stretches between floods? New #Geology research uses flume experiments to show that riverbeds become progressively stronger during the calm periods between floods, influencing erosion during the next flood event: geosociety.co/Kostynick_et_al

Unlike typical earthquakes that rupture in seconds, slow earthquakes unfold over days, weeks, or even months—and scientists have long debated what causes them. New #Geology reveals a potential answer; read the paper: geosociety.co/Chapman_et_al #Earthquakes #SubductionZones

New #Geology research reveals that Pacific seamount volcanism does not follow the biased dated record, but instead records basin-scale plate evolution and lithospheric control. Read paper: geosociety.co/Zhao_et_al #Seamounts #PlateTectonics #MachineLearning #MarineGeology

GSA Connects 2026 doesn't have to start and end at the convention center... Swipe through to preview some of this year's expert-led field trips, and browse the full list on our website. Trips are already starting to fill up, so reserve your spot today! geosociety.co/field-trips

Research published in #Geosphere investigates whether the Cascadia Subduction Zone and the northern San Andreas Fault may sometimes influence one another through stress transfer, potentially leading to clusters of large earthquakes over time. Read the full paper: geosociety.co/Goldfinger_et_al

Featured in Montana Magazine, "Montana Rocks!" is being recognized as "the geology book Montana has always needed." Discover Montana's incredible geologic history with Rob Thomas. Get your copy: geosociety.co/MontanaRocks Read the review: geosociety.co/montana-review

LAST DAY! Submit 2027 GSA Section Meeting proposals for: • geosociety.co/NortheasternSection • geosociety.co/SoutheasternSection • geosociety.co/RockyMountainSection • geosociety.co/CordilleranSection South-Central/North-Central closes 28 August: • geosociety.co/South-Central-North-Central-Section

New in #GSABulletin: How did deep-ocean oxygen change during past climate cycles? Using Fe–Mn crusts from the western Pacific, this study reconstructs dissolved oxygen over the past 450,000 years. 🔗 https://ow.ly/J7eu50Znf3i #Paleomagnetism #Paleoceanography #GSAPubs Image: Figure 2 from the paper

Did scientists just identify Earth's oldest known impact crater? ☄️ New #Geology research presents evidence that the North Pole Dome impact structure in Western Australia is ~3.02 billion years old, predating the previous record-holder by ~800 million years. Full paper: geosociety.co/Kirkland_et_al

Want to get even more out of #GSAConnects2026? The GeoCareers Sessions are where it happens. These interactive sessions cover professional development, skill-building, career exploration, and networking. 🔎 Explore more (open to all attendees): geosociety.co/geocareers

🌋 EARTHCACHE: Rauðhólar, or “red mounds,” is a striking field of rootless cones formed ~5,200 years ago when hot lava flowed across a shallow lake near Reykjavík, Iceland. These “pseudo craters” formed through steam explosions—not magma vents. Explore this EarthCache: geosociety.co/GC95K4V

Fluid flow in Earth's crust is not only controlled by fractures—it can be reorganized by the stress field itself. New #Geology research uses a novel approach to measure the 3D permeability of basalt under independently controlled principal stresses: geosociety.co/Stanton-Yonge_et_al Image: Fig 4

Congratulations to GSA's Ester Sztein, Director of International Programs, on receiving AGI's Award for Outstanding Contribution to Public Understanding of the Geosciences! Join us in celebrating this well-deserved honor. Learn more: geosociety.co/ester-sztein-award

New in #GSABulletin: Researchers use UAVs + machine learning to map gravel beach sediment texture & transport directions with high accuracy and reduced field costs. The framework improves coastal process analysis and sediment trend modeling. geosociety.co/Zhang_et_al_26 Image: Figs 2 and 3

New opportunities are waiting on the GSA Geoscience Job Board! Whether you're looking to advance your academic career, explore a new research path, or find your next geoscience role, there are openings for every stage of your journey. 🔎 Explore all open positions: geosociety.co/JobBoard

Was Hells Canyon carved by Snake River capture? New #GSABulletin research suggests otherwise: geosociety.co/Staisch_et_al Image: Field photo by Lydia Staisch of the Clarkston Heights gravels, deposited along a paleochannel near the Snake River–Clearwater River confluence in Washington State, USA.

New #Geology research presents evidence suggesting that the inner Solar System continued to experience significant bombardment between ~3.7 and 3.2 billion years ago, raising questions about how these events influenced Earth's earliest environments and ecosystems. Paper: geosociety.co/Crow_et_al

Go beyond the lecture hall and learn by doing. 🗺️ Sign up for hands-on short courses at GSA Connects 2026. Swipe through these featured short courses and browse the full lineup on our website: geosociety.co/short-courses #GSAConnects2026 #ShortCourses #Geoscience

2027 Section Meeting Proposal deadlines are closing soon! Submit now: ⏰ 30 July • geosociety.co/NortheasternSection • geosociety.co/SoutheasternSection • geosociety.co/RockyMountainSection • geosociety.co/CordilleranSection ⏰ 28 August • geosociety.co/South-Central-North-Central-Section

How well does the Great Salt Lake record earthquakes? Researchers combined acoustic imaging and sediment cores to identify Holocene fault ruptures and earthquake deposits linked to the Great Salt Lake and Wasatch faults. geosociety.co/DuRoss_et_al #GSABulletin #Earthquakes Image: Fig 20

Curiosity sparked R. Valli Divya's journey into geoscience. Now a PhD student and a six-year GSA student member, she's advancing research on planetary interiors. 🔗 Explore GSA Memberships: geosociety.org/membership 📖 Read her recent publication: geosociety.co/R-Valli-Divya

Read the latest in geoscience research: The July/August issue of #GSABulletin is available online! geosociety.co/GSABulletin_July_Aug Cover: Coral reef limestones of the southern Dominican Republic showing robust colonies of the reef crest coral Acropora palmata. Photo by James S. Klaus.

Still figuring out your path in #Geology? GeoCareer Day might be exactly what you need. Career panels, mentor roundtables, résumé reviews, and a USA Jobs workshop—all in one morning, all in one place. Add GeoCareer Day when you register for GSA Connects 2026: geosociety.co/register_connects26

A new #Geology study in about the Lokbatan mud volcano (Azerbaijan) reveals that kilometer-scale mud flows grow gradually through repeated small eruptions that reactivate creeping motion in older deposits, not just single catastrophic events. geosociety.co/Mazzini_et_al #MudVolcanoes #Creeping

EARTHCACHE: Scree vs. Talus in Breckenridge, Colorado, USA. Discover how weathering, gravity, and rockfall shape mountain landscapes. What looks like a simple rock pile tells a much bigger geologic story. Explore: geosociety.co/GC90BAW