Geotecx

12/05/2026

08/05/2026

This map is from a recently published paper by Thompson et al. (2026), “Geologic map of the Geronimo-San Bernardino volcanic field showing dominant rock types for scoria cones, maar crater, and lava flows; MRRI sample locations; and locations of known cinder pits. Modified from Biggs et al., 1999a. The volcanic field is situated in southeastern-most Arizona.

The research paper focuses on Arizona’s surficial mafic rock resources that would potentially be be suitable for ex-situ carbon mineralization.

Citation: L.A. Thompson, A. Sjolund, J. Patterson, T. Wilson, J.L. Wade, 2026, An inventory of surficial mafic rock resources for ex-situ carbon mineralization. International Journal of Greenhouse Gas Control, Volume 153, ISSN 1750-5836 https://doi.org/10.1016/j.ijggc.2026.104663.

29/04/2026

🌟OPEN ACCESS🌟 Analysis of Rupture Directivity and Wave Propagation Effects on Simulated Ground Motion for Mw 7 Earthquakes on the Hayward Fault

The Hayward Fault—part of the San Andreas fault system—is a major contributor to the San Francisco Bay Area’s earthquake hazard. Therefore, accurate ground-motion predictions for large earthquakes on the Hayward are essential.

In a new study, a team from Berkeley Lab and The University of Tokyo / UTokyo investigates how rupture kinematics and subsurface structure influence ground motion. The team simulates seismograms for 50 hypothetical rupture scenarios for a magnitude 7 Hayward Fault earthquake. For a complete discussion of methods and findings, please visit the paper.

https://pubs.geoscienceworld.org/ssa/srl/article/doi/10.1785/0220250161/727600/Analysis-of-Rupture-Directivity-and-Wave?utm_source=facebook&utm_medium=social&utm_campaign=papers

28/04/2026

Earthquakes can set off chains of hazards that multiply destruction long after the first tremor:
🌊 Tsunamis
🏔️ Landslides
☣️ Toxic releases and chemical spills
🏗️ Infrastructure collapse
🔥 Fires
🕳️ Sinkholes and ground subsidence

Reducing earthquake impacts starts with understanding the full risk picture. Knowing what can follow an earthquake means we can plan, build, and warn more effectively.

On the International Day in Memory of the Victims of Earthquakes, 29 April, we can honour those lost by taking action to protect those who remain. 🕯️

Remember. Protect. Build disaster resilience.

➡️ https://ow.ly/i33V50YOTWR

27/04/2026

Fresh uranium publication from the U.S. Geological Survey, “ Uranium—Deposits, Production and Resources, Market Dynamics, and Supply Chain Risks”. (https://pubs.usgs.gov/publication/fs20253057)

From the introduction to the 6-page report, “ Interest in nuclear power for the generation of electricity has risen with the increase in the need for more diverse baseload power, enhanced energy security, and the development of new technologies, such as small modular reactors (SMRs), which could provide power for remote areas, industrial applications, and artificial intelligence (AI) data centers (NEA and IAEA, 2025).”

FIGURE CAPTION. "Map showing uranium resource regions and recent assessments of the United States. Two modern quantitative mineral resource assessments for undiscovered uranium have been completed (Mihalasky and others, 2015; Hall and others, 2017; U.S. Geological Survey, 2022), and additional areas have been identified for potential quantitative assessments."

Citation: Mihalasky, M.J., 2026, Uranium—Deposits, production and resources, market dynamics, and supply chain risks: U.S. Geological Survey Fact Sheet 2025-3057, 6 p., https://doi.org/10.3133/fs20253057.

23/04/2026

13/04/2026

"Major element variability in Socorro and San Benedicto host rocks (HR) and olivine-hosted melt inclusions (MI) compared to whole rock (WR) data from the literature. (a) Total Alkali versus Silica (TAS) diagram. (b) CaO vs. MgO (c) TiO2 versus MgO wt%. Fields indicate the bulk lava compositions published in (Bohrson, 1993; Bohrson & Reid, 1995, 1997; Moore, 1970; Richards, 1966; Siebe et al., 1995). MI data are corrected for post-entrapment diffusive equilibration (see Text S3 in Supporitng Information S1)."

Source:
Koornneef, J. M., Tromp, L. J. J., Nikogosian, I. K., Barning, E. M., Deuss, A., Rojas-Agramonte, Y., et al. (2026). Active plume, abandoned ridge, or ancient slab? olivine-hosted melt inclusions record the mantle melting conditions below the east Pacific Revillagigedo Archipelago, Mexico. Geochemistry, Geophysics, Geosystems, 27, e2025GC012699. https://doi.org/10.1029/2025GC012699

02/04/2026

Moonbound.

The Artemis II mission lifted off from NASA's Kennedy Space Center's Launch Complex 39B today at 6:35 p.m. EDT (2235 UTC).

Main engine cutoff of the SLS (Space Launch System) core stage is complete, and the core stage has successfully separated from the interim cryogenic propulsion stage and the Orion spacecraft. This marks the end of the first major propulsion phase of the Artemis II mission and the transition to upper‑stage operations.