Results 171 to 180 of about 206,390 (220)

Vanadium Isotopic Compositions of the High‐3He/4He Baffin Island Lavas

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The isotopic composition of vanadium (V) in hotspot lavas provides new insight into the source of deep mantle heterogeneities. We measured V isotopic compositions in Paleogene Baffin Island lavas, which erupted above the Iceland plume head, to constrain the mantle plume source. These lavas have V isotopic compositions that are lighter (−0.96 ± 
Jonas Kaare‐Rasmussen, Forrest Horton, Maureen Auro, Andy W. Heard, Sune G. Nielsen   +4 more
wiley   +1 more source

A 13.06 Ma widespread ignimbrite in the Pannonian Basin captured a snapshot of shallow marine to coastal environment in Central Paratethys. [PDF]

Sci Rep
Karátson D, Lahitte P, Portnyagin M, Palotai M, Józsa S, Márton E, Tóth E, Erdei B, Nomade S, Németh K, Iván L, Krasznai M, Vörös F, Biró T, Paquette JL, Hably L, Hír J, Prakfalvi P, Kiss J, Pécskay Z, Frick DA, Hencz M.   +21 more
europepmc   +1 more source

Bathymetry Prediction With SWOT Gravity Anomaly Using Machine Learning Methods: Paper 1–Model Development

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Only one quarter of the global ocean floor has been directly surveyed; the remaining three quarters are inferred from satellite altimeter‐derived gravity data using techniques developed in the 1990s. These classical methods correlate gravity anomalies with known depths and extrapolate bathymetry in unsounded regions.
David Sandwell, Benjamin J. Phrampus, Farshad Salajegheh, Bjarke Nilsson, Biao Lu, Yao Yu, Hugh Harper, Ole B. Andersen, Walter Smith, Paul Elmore, Jonathan Kirby, James Beale, Jamie Roberts, Luis Altamirano   +13 more
wiley   +1 more source

Volcanic soil gas ⁴He/CO₂ ratio: a useful geochemical tool for real-time eruption forecasting. [PDF]

Sci Rep
Pérez NM, Padrón E, Melián G, Hernández PA, Padilla G, Barrancos J, Rodríguez F, D'Auria L, Calvo D.   +8 more
europepmc   +1 more source

Reappraisal of Holocene Caldera Resurgence at Campi Flegrei (Southern Italy): A Long‐Lived Magma‐Driven Resurgent Dome System

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Caldera systems commonly experience inner resurgence, which shapes patterns of volcanic activity. However, incomplete reconstructions of past ground deformation can lead to incorrect recognition of precursory signals. The Campi Flegrei caldera (Italy) provides an exceptional opportunity to address this issue as uplifted marine sediments ...
Jacopo Natale, Stefano Vitale
wiley   +1 more source

Three eruptions at the Fagradalsfjall Volcano in Iceland show rapid and predictable microbial community establishment. [PDF]

Commun Biol
Hadland N, Hamilton CW, Björnsdóttir S, Duhamel S.   +3 more
europepmc   +1 more source

Submarine Flank Collapses at Tagoro Volcano: Insights From Bathymetric Surveys and 3D Multiphase Simulations

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Volcanic islands are prone to flank instabilities that can generate tsunamis even when mobilized volumes are moderate. This study investigates submarine collapses during the 2011–2012 eruption south of El Hierro, which built the Tagoro submarine volcano.
E. P. Montellà, A. Romano, G. Barajas, J. A. Lozano, J. T. Vázquez, J. L. Lara, E. Fraile‐Nuez   +6 more
wiley   +1 more source

Subsurface Structure and Morphometry of the Wrinkle Ridges in the Late Amazonian Volcanic Unit on Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Wrinkle ridges are widespread compressional tectonic features on Mars and are important records of the planet's global contractional history. However, their formation, evolution and subsequent modification by other geologic processes remain poorly constrained.
Jianfei Liu, Lu Pan
wiley   +1 more source

The Role of Magmatic Styles in Planetary Thermal Evolution Models

Journal of Geophysical Research: Planets, Volume 131, Issue 8, August 2026.
Abstract Previous studies that investigated the effects of magmatism on the interior dynamics, in particular for Earth‐sized planets, suggest that magmatism leads to more efficient mantle cooling. However, the extent to which different magmatic styles influence the thermal evolution of planets, and in particular smaller rocky bodies, has not yet been ...
C. Herrera, A.‐C. Plesa, J. Maia, D. Breuer   +3 more
wiley   +1 more source

Mapping the global health burden of volcanic exposure: a scoping review approach. [PDF]

Front Public Health
Simbaña-Rivera K, Endara-Mina J, Jaramillo-Aguilar DS, Mera-Lojano LD, Jimbo-Sotomayor R, Sánchez X, Rodríguez-Pérez MC, Fuentes-Ferrer ME, Boada LD.   +8 more
europepmc   +1 more source