Results 121 to 130 of about 21,047 (239)
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.Abstract Volcanism in continental rifts, rifted volcanic arcs, and back‐arc basins is fundamentally coupled with crustal extension. However, the precise geometry and timing of the fault systems that facilitate magma transport and accommodate extension remain poorly constrained.
Jonas Preine +17 more
wiley +1 more source
Arc Heat Flow and Magmatic Heat Budgets
Reviews of Geophysics, Volume 64, Issue 2, June 2026.Abstract We evaluate hydrothermal heat loss from 11 volcanic‐arc segments (∼6,000 km of arc length, ∼10% of the global total), motivated by the observation that much magmatic heat ultimately crosses the land surface as heated aqueous fluid. Heat loss takes place by volcanic eruption, geothermal heat conduction to the surface, fumarolic (vapor ...
S. E. Ingebritsen +7 more
wiley +1 more source
Tectonics, Volume 45, Issue 6, June 2026.Abstract The assembly and breakup of the supercontinent Rodinia set the stage for Earth system evolution through the Neoproterozoic Era. Laurentia, the central craton in Rodinia, lacks well‐dated paleomagnetic poles between ca. 990 Ma and 780 Ma. In this study, we develop new U‐Pb petrochronology and thermochronology data sets from zircon, garnet ...
Yiming Zhang +6 more
wiley +1 more source
The Argon Geochronology Experiment (AGE)
, 2006 This viewgraph presentation reviews the Argon Geochronology Experiment (AGE). Potassium-Argon dating is shown along with cosmic ray dating exposure. The contents include a flow diagram of the Argon Geochronology Experiment, and schematic diagrams of the ...
Swindle, T. D. +8 more
core
Improved Constraints on Andean Glaciations From the Lake Titicaca Continental Drilling Record
Paleoceanography and Paleoclimatology, Volume 41, Issue 6, June 2026.Abstract Long sedimentary records from tropical lakes provide crucial archives for reconstructing the timing and extent of tropical alpine glaciations, yet robust chronologies beyond the radiocarbon limit (ca. 50 ka) remain scarce. Here, we refine the ca. 350 kyr chronology for Lake Titicaca (Peru‐Bolivia) using radiocarbon dating, optically stimulated
Victoria L. Todd +7 more
wiley +1 more source
Precision and Accuracy in Geochronology
, 2017 Geochronology in Earth and Solar System science is increasingly in demand, and this demand is not only for more results, but for more precise, more accurate, and more easily interpreted temporal constraints.
Leah Morgan +3 more
core +1 more source
Long‐Term Deformation in the Alpine‐Provence Foreland Constrained by In Situ Calcite U‐Pb Dating
Tectonics, Volume 45, Issue 6, June 2026.Abstract The evolution of the Alpine‐Provence foreland is characterized by multiple deformation phases since the Mesozoic, representing successive compressional and extensional episodes. The precise timing and spatial evolution of these deformation phases remain poorly constrained due to the lack of absolute geochronological data. Here, we present U–Pb
Dorian Bienveignant +12 more
wiley +1 more source
Widespread Aquatic Insect Responses to Recent Warming in Swiss Mountain Lakes
Global Change Biology, Volume 32, Issue 6, June 2026.Chironomids in surface sediment from 24 Swiss mountain lakes were studied and compared with surveys conducted on the same lakes in 1993/2002 to assess biological responses to recent climate warming. Most lakes show significant shifts in this important group of aquatic insects towards assemblages typical of warmer conditions, while a subset exhibits ...
Maja Damber +9 more
wiley +1 more source
Peixe Zircon as a Quality Control Reference Material in U‐Pb Geochronology by LA‐ICP‐MS
Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 369-389, June 2026.Key Points Peixe#0 zircon was characterised for U‐Pb geochronology using CA‐ID‐TIMS, SIMS and a long‐term LA‐ICP‐MS data set. The consistent results establish Peixe#0 as a reference material for U‐Pb quality control. Trace element heterogeneity requires careful, CL‐guided spot selection.
Margareth Sugano Navarro +7 more
wiley +1 more source
Journal of Metamorphic Geology, Volume 44, Issue 5, Page 376-393, June 2026.ABSTRACT The absence of jadeite in regions where subduction of continental crust has been documented by other high‐pressure (HP) or ultrahigh‐pressure (UHP) minerals is striking. This study presents only the second discovery of jadeite in the crystalline rocks of the Erzgebirge, a region known for its occurrences of microdiamond, coesite and omphacite ...
Ondrej Lexa +3 more
wiley +1 more source