Results 141 to 150 of about 26,862 (257)
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 +10 more
wiley +1 more source
Rivista Italiana di Paleontologia e StratigrafiaThis study updates the lithostratigraphic and chronostratigraphic framework of the marine carbonate-dominated Paleogene strata of northwestern Saudi Arabia within the Sirhan–Turayf Basin by integrating detailed field observations and high-resolution ...
MOHAMMED H. ALJAHDALI +7 more
doaj +1 more source
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 +14 more
wiley +1 more source
Paleoseismic Evidence of Recent Co‐Seismic Ruptures in Western Tierra del Fuego, Chile
Tectonics, Volume 45, Issue 8, August 2026.Abstract The Magallanes‐Fagnano fault (MFF) in Tierra del Fuego (TDF) is a major left‐lateral transform boundary between the South American and Scotia plates. While surface ruptures associated with the 1949 earthquakes have been documented in Argentina east of the Fagnano Lake, their extension to the west remained uncertain.
Ricardo Aguilera‐Cortés +4 more
wiley +1 more source
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 8, August 2026.Abstract The Cenozoic topographic growth of the Iranian Plateau, situated at the Arabia‐Eurasia collision front, provides insights into continental collision dynamics. However, the relative contributions of tectonic shortening versus deep mantle processes to crustal thickening remain debated because systematic quantitative constraints on paleo‐crustal ...
Jun Hu +4 more
wiley +1 more source
Journal of Anatomy, Volume 249, Issue 2, Page 314-337, August 2026.Fossil finds from three Middle Miocene sites in Poland reveal the northernmost known presence of trionychid turtles in Europe, tentatively identified as Trionyx cf. vindobonensis, suggesting a warmer climate that supported thermophilic species in Central Europe during this period. Abstract Modern trionychids (Testudines, Cryptodira) have a pan‐tropical
Yohan Pochat‐Cottilloux +5 more
wiley +1 more source
Constraints on the evolution of Taranaki Fault from thermochronology and basin analysis: Implications for the Taranaki Fault play [PDF]
, 2004 Taranaki Fault is the major structure defining the eastern margin of Taranaki Basin and marks the juxtaposition of basement with the Late Cretaceous-Paleogene succession in the basin.
Nelson, Campbell S. +7 more
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Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.Abstract To explore mechanisms of rupture segmentation, we invert coseismic GNSS offsets for the 2025 Mw 7.6 Aomori, Japan earthquake. Our preferred curved‐fault solution images a compact thrust rupture at 25–50 km depth with peak slip ∼2.5 m near 35 km.
Xiaolong Zhang +6 more
wiley +1 more source
IODP Proposal 626: "Cenozoic Equatorial Age Transect – Following the Palaeo-equator" [PDF]
As the largest ocean, the Pacific is intricately linked to major changes in the global climate system that took place during the Cenozoic. Throughout the Cenozoic the Pacific plate has had a northward component.
Moore, T.C. +6 more
core