Results 131 to 140 of about 972,759 (203)

Pre‐Eruptive Volatiles and Magma Storage Depth for the 2018 Eruption at Mount Veniaminof, Alaska

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Mount Veniaminof is a frequently active, open‐system arc volcano on the Alaska Peninsula, part of the Alaska‐Aleutian arc. Mount Veniaminof's September–December 2018 eruption began with small lava flows and culminated in a larger explosive event in November that produced a 450 km long continuous ash plume—one of the volcano's most significant ...
E. G. Huggins, P. Ruprecht, M. Loewen, M. Gavrilenko, R. J. Bodnar, M. Harlaux   +5 more
wiley   +1 more source

Geodynamic Significance of Intraplate Basaltic Magmatism From the Western Mediterranean Region

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Dynamic topography changes as mantle convection evolves, making its past surface expression difficult to reconstruct. Widespread Neogene‐Quaternary intraplate basaltic magmatism across the Western Mediterranean Region allows us to test whether dated basalts preserve the mantle thermal structure responsible for regional dynamic support.
Chia‐Yu Tien, Nicky White, Megan Holdt, John Maclennan, Benedict Conway‐Jones   +4 more
wiley   +1 more source

Influence of Al incorporation on the thermal stability, mechanical properties and oxidation behavior of (Ti,V,Zr,Nb,Hf,Ta)1-xAlxN thin films (x = 0, 0.1)

The influence of Al incorporation on the thermal stability, mechanical properties and oxidation behavior of (Ti,V,Zr,Nb,Hf,Ta)N and (Ti,V,Zr,Nb,Hf,Ta)0.90Al0.10N thin films is studied and compared to literature data for (Ti,Al)N.
Fidanboy, Gönenc, Schneider, Jochen M., Hans, Marcus, Primetzhofer, Daniel, Sankaran, Shanmugam, Ramesh, Devi Janani, Neuss, Deborah, Kolozsvári, Szilárd, Lasfargues, Héloïse, Azina, Clio, Polcik, Peter, Mráz, Stanislav   +11 more
core   +1 more source

OIB‐Type Garnet Amphibolites From the Xuerongzangbu Area, Central Lhasa Terrane, Tibet: Implications for Songduo Paleo‐Tethys Ocean Evolution and Permian Mantle Activity Along North Gondwana

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Whether the Songduo metamorphic belt represents an in situ Paleo‐Tethyan suture within the Lhasa Terrane or far‐traveled allochthonous high‐pressure slices, and how Permian mantle activity along the North Gondwana margin relates to subsequent Tethyan evolution, remain central questions in Tibetan tectonics.
Yuan‐Bo Ma, Xin Jin, Yu‐Xiu Zhang, Zhi‐Wu Li, Shahbaz Bin Khalid, Ji‐Heng Zhang, Wen‐Guang Yang, Li‐Dong Zhu, Gang Tao, Kai‐Jun Zhang   +9 more
wiley   +1 more source

Apatite as a Proxy for Reconstructing Magma Mixing Histories in Granitoids

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Apatite is a common accessory mineral in granites and mafic microgranular enclaves (MMEs), and its textural and compositional characteristics can record dynamic magmatic evolution processes. Apatites from the Early Cretaceous Sanguliu granite and its MMEs in the Liaodong Peninsula exhibit pronounced compositional heterogeneities. In this study,
Xiaowen Lin, Jiahao Zheng, Wanyi Feng
wiley   +1 more source

Unraveling the Evolution of Silicic Volcanism in a Distributed Volcanic Field: Insights From Harrat Khaybar, Western Saudi Arabia

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Distributed basaltic volcanic fields commonly host minor but significant silicic magmas, the origin of which remains debated. At Harrat Khaybar (western Saudi Arabia; ca. 1.7 Ma to present), volcanic activity erupted compositions range from alkali olivine basalt to trachyte and comendite.
Abdullah Alohali, Shanaka de Silva, Charles Lewis, Suhail S. Alhejji, Shane J. Cronin, Chris J. Russo   +5 more
wiley   +1 more source

Key Drivers of Activity and Selectivity in Cu‐Based Catalysts for Methanol Synthesis From CO2: Insights From Atomically Dispersed Promoters

Angewandte Chemie, Volume 138, Issue 40, 28 September 2026.
Mechanistic studies on model Cu─M/SiO2 catalysts (M = Zn, Ga, and In) reveal that promoters enable a formate spillover pathway from Cu to Mn+ (n = 2 or 3) sites. The promoter's electronic effect on formate bond strengths serves as a quantitative descriptor for activity and selectivity, balancing spillover dynamics with intermediate stabilization to ...
Nat Phongprueksathat, Gina Noh, Scott R. Docherty, Damian Vico van Berkel, Yannik Stiefel, Christophe Copéret, Atsushi Urakawa   +6 more
wiley   +2 more sources

Structural state and properties of nitride coatings based on the highly entropic alloy Ti₃₀Zr₂₅Nb₂₀Hf₁₅Ta₁₀Y₅

, 2018
Встановлено закономірності формування нітридних покриттів на основі високоентропійного багатокомпонентного сплаву Ti₃₀Zr₂₅Nb₂₀Hf₁₅Ta₁₀Y₅ у вихідному стані без азоту і в азоті. Вихідний матеріал сплаву – твердий розчин на основі ОЦК-ґратки. При подальшому
Рокицька, О.А., Горбань, В.Ф., Андреєв, А.О., Столбовий, В.А., Бужинець, О.І., Канцир, О.В., Карпець, М.В.   +6 more
core   +1 more source

Subduction Recycling and Closure of the Paleo‐Asian Ocean in the Beishan Orogen: Constraints From the Niujuanzi Ophiolitic Mélange and Associated Intrusions

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 10, October 2026.
Abstract Ophiolitic mélanges and associated intrusions provide key archives for reconstructing the evolution of ancient ocean basins and subduction‐related mantle modification. The Hongliuhe–Niujuanzi–Xichangjing ophiolitic mélange in the central Beishan Orogen preserves important records of the Paleo‐Asian Ocean, but the timing of oceanic subduction ...
Yujia Song, Xijun Liu, Yao Xiao, Honghu Zeng, Pengde Liu   +4 more
wiley   +1 more source

Anion exchange behaviour of Zr, Hf, Nb, Ta and Pa as homologues of Rf and Db in fluoride medium

, 2017
El estudio de las propiedades químicas de los elementos transactínidos conlleva grandes dificultades a nivel experimental, debido a las cortas vidas medias de dichos elementos y a sus bajos rendimientos de producción.
Trubert, Didier, Brillard, Lucette, Monroy Guzman, Fabiola, Naour, Claire le, Hussonnois, Michel, Constantinescu, Olimpus   +5 more
core