Granitic intrusions enhance strain localization and rapid mantle exhumation along an oceanic detachment fault

Poulaki, E. M.*; Abe, Noriaki; 34 of others*

Science Advances (Internet), 12(23), p.eaec6950_1 - eaec6950_15, 2026/06

https://doi.org/10.1126/sciadv.aec6950

Serpentinization and magmatism weaken the lithosphere and facilitate mantle exhumation during magma-poor rifting and seafloor spreading. However, the competing mechanisms that control exhumation along detachment faults remain poorly constrained. IODP Expedition 402 drilled a young oceanic basin in the Tyrrhenian Sea and recovered in-situ mantle sections. Drilled cores consist of one sequence of variably deformed granitic intrusions intercalated with slivers of peridotites and basalts, and another of primarily serpentinized peridotites with heterogeneous deformation and local granitic intrusions. Geochronologic and geochemical data constrain that the granites crystallized at 4 Ma at ~7 km and rapidly exhumed to the seafloor within ~0.5 Myrs, requiring extension rates of ~2 cm/year. Structural observations show that these granites accommodated significant post-crystallization strain during exhumation and enhanced localization of detachment faulting. Stable isotopes record serpentinization temperatures of 200C, suggesting serpentinization occurred after the onset of deformation. These observations, demonstrate that felsic melts, when present, can nucleate strain localization along detachment faults and enable continental breakup and mantle exhumation.

Intimate relationship between spin configuration in the triplet pair and superconductivity in UTe

Matsumura, Hiroki*; Tokunaga, Yo; Sakai, Hironori; Kambe, Shinsaku; Kimata, Motoi; 14 of others*

Physical Review B, 113(9), p.094506_1 - 094506_12, 2026/03

https://doi.org/10.1103/xr3p-cxbt

Temperature-dependent deformation behavior of dual-phase medium-entropy alloy; In-situ neutron diffraction study

Gu, G. H.*; Jeong, S. G.*; Heo, Y.-U.*; Harjo, S.; Gong, W.; Cho, J.*; Kim, H. S.*; 4 of others*

Journal of Materials Science & Technology, 223, p.308 - 324, 2025/07

https://doi.org/10.1016/j.jmst.2024.11.057

Investigation of the excited states of Sn using the GRIFFIN spectrometer at TRIUMF

Syeda, N. K.*; Smallcombe, J.; 44 of others*

Nuclear Physics A, 1059, p.123090_1 - 123090_5, 2025/07

https://doi.org/10.1016/j.nuclphysa.2025.123090

Seniority structure in neutron-rich nucleus Ag; Evidence for robustness of =82 shell closure in silver isotopes

Luo, D. W.*; Zhang, J. Z.*; Li, Z. H.*; Orlandi, R.; 64 of others*

Physical Review Letters, 134(23), p.232502_1 - 232502_7, 2025/06

https://doi.org/10.1103/wq9m-trj8

Fine structure in the decay of Hg and Au

paek, A.*; Herz, A.*; Sedlk, A.*; Venhart, M.*; Andreyev, A. N.; 48 of others*

European Physical Journal A, 61(3), p.43_1 - 43_9, 2025/03

https://doi.org/10.1140/epja/s10050-025-01513-9

Evaluation of the performance of event reconstruction algorithms in the JSNS experiment using a Cf calibration source

Lee, D. H.*; Dodo, Taku; Haga, Katsuhiro; Harada, Masahide; Hasegawa, Shoichi; Kasugai, Yoshimi; Kinoshita, Hidetaka; Masuda, Shiho; Meigo, Shinichiro; Sakai, Kenji; et al.

Nuclear Instruments and Methods in Physics Research A, 1072, p.170216_1 - 170216_6, 2025/03

https://doi.org/10.1016/j.nima.2025.170216

Surface structure of the 33-Si phase on Al(111), studied by the multiple usages of positron diffraction and core-level photoemission spectroscopy

Sato, Yusuke*; Fukaya, Yuki; 14 of others*

Physical Review Materials (Internet), 9(1), p.014002_1 - 014002_11, 2025/01

https://doi.org/10.1103/PhysRevMaterials.9.014002

no abstracts in English

Production cross-sections of residual nuclides from Zr + at 27 MeV/nucleon

Hwang, J.*; Chillery, T.*; Dozono, Masanori*; Imai, Nobuaki*; Michimasa, Shinichiro*; Sumikama, Toshiyuki*; Chiga, Nobuyuki*; Ota, Shinsuke*; Nakayama, Shinsuke; 49 of others*

Progress of Theoretical and Experimental Physics (Internet), 2024(9), p.093D03_1 - 093D03_12, 2024/09

https://doi.org/10.1093/ptep/ptae139

Nuclear transmutation emerges as a promising approach for reprocessing high-level waste, specifically treating long-lived nuclides like Zr from spent fuel. It is essential to accumulate reaction data for these nuclei to advance this prominent treatment and to build a comprehensive understanding of reaction mechanisms. In this study, the residual production cross-sections resulting from proton-induced reactions on Zr were measured at 27 MeV/nucleon in inverse kinematics. At the RIKEN-RIBF facility the OEDO beamline was used to deduce production cross-sections for isotopes, Nb, Zr, and Y. Comparing the results from this study and prior research with calculated excitation functions, a moderate agreement is found with theoretical predictions derived from TALYS and CCONE. Despite the potential limitations of low-energy proton-induced reactions for Zr transmutation, the measured cross-sections offer valuable insights for future considerations in nuclear-waste treatment facilities. This is particularly relevant for facilities exploring innovative methods, such as accelerator-driven systems.

Compound-nucleus and doorway-state decays of -delayed neutron emitters K

Xu, Z. Y.*; Grzywacz, R.*; Andreyev, A. N.; 49 of others*

Physical Review Letters, 133(4), p.042501_1 - 042501_7, 2024/07

https://doi.org/10.1103/PhysRevLett.133.042501