Results 121 to 130 of about 2,572 (207)

Tracing Continental Basalt Sources and Mantle Processes Using Fe Stable Isotopes

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract Iron (Fe) isotopes have emerged as powerful tracers of mantle source heterogeneity and melting processes, yet the mechanisms producing heavy Fe isotope signatures (high δ57Fe values) in intraplate basalts remain debated. Competing interpretations include partial melting of recycled pyroxenite domains versus carbonate‐induced oxidation of a ...
Yi‐Shan Cheng, Jian‐Qiang Liu, Li‐Hui Chen, Xun Yu, Gang Zeng, Xiao‐Jun Wang, Zhao‐Yang He, Jian Zhao, Frances M. Deegan, Valentin R. Troll, Hong‐Fu Zhang   +10 more
wiley   +1 more source

Zinc isotope evidence for extensive carbonate recycling in the Arctic asthenosphere. [PDF]

Nat Commun
Zhang WQ, Ding WW, Liu CZ, Lissenberg CJ, Wang YJ, Zhang T, Tan PC, Zou ZQ, Xu Y, Lu JG, Fang YX, Li JB.   +11 more
europepmc   +1 more source

Petrogenesis and Tectonic Evolution of Cenozoic Magmatism in the Southernmost Northern Andes: Insights From Zircon Petrochronology

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract This study integrates new zircon U–Pb ages, zircon εHf(t)–δ18O isotopic data, and whole‐rock geochemistry to refine the temporal and spatial framework of magmatism in the southern Northern Andes (SNA) from ∼65 to 6 Ma. The San Lucas, Catamayo, Portachuela, and Gonzanamá batholiths and magmatic suites, along with Late Miocene plutons, display ...
J. Iglesias, C. Witt, L. C. Sandoval Espinel, M. Zattin, M. Poujol, O. Bruguier, O. Poma, M. J. Hernández, O. Averbuch, M. Seyler, D. Bosch, F. Chanier, S. Ventalon, C. Liorzou, V. Bosse   +14 more
wiley   +1 more source

A geological carbon cycle sink hosted by ocean crust talus breccias. [PDF]

Nat Geosci
Coggon RM, Carter EJ, Grant LJC, Evans AD, Lowery CM, Teagle DAH, Kempton PD, Cooper MJ, Routledge CM, Albers E, Estep J, Christeson GL, Harris M, Belgrano TM, Sylvan JB, Reece JS, Estes ER, Williams T.   +17 more
europepmc   +1 more source

Oxygen Isotopic Composition of Miocene Meteoric Water (δ18Ow) in Alpine Foreland Basins

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.
Abstract The reconstructed stable oxygen isotopic composition of meteoric water (δ18Ow) is widely used for paleoclimate reconstructions. Understanding past environmental factors that drove changes in δ18Ow is essential for interpreting past climate conditions.
Armelle Ballian, Maud J. M. Meijers, Daniel Boateng, Isabelle Cojan, Sebastian G. Mutz, Todd A. Ehlers, Andreas Mulch   +6 more
wiley   +1 more source

Presence of continental slivers in oceanic transform faults determined by rift inheritance. [PDF]

Nat Geosci
Balázs A, Gerya T, Tari G.
europepmc   +1 more source

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

Tracking rehabilitated sea turtles in the Indian Ocean using satellite telemetry: Insights into behaviour, ecology, and conservation implications. [PDF]

PLoS One
Himpson K, Le Berre T, Hodges E.
europepmc   +1 more source

Constraining the Permeability and Outer‐Rise Hydration at the Central America Margin

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Subduction zones are important drivers of Earth's geochemical evolution; the presence of water within the subduction system has substantial implications for geohazards, including the style of seismicity and the volume of magma generated at arc volcanoes.
D. Douglas, B. T. Aagaard, J. Naliboff, S. Naif   +3 more
wiley   +1 more source

Emissions of mantle helium and abiotic methane at newly discovered black smokers along the Central Indian ridge (12°S-16°S). [PDF]

Sci Rep
Kim H, Hong J, Kim W, Kim J, Kim G, Tsunogai U, Takahata N, Sano Y, Lee H.   +8 more
europepmc   +1 more source