New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.Clasts of albite‐porphyroblastic quartzofeldspathic schist, derived from the Otago Schist basement, occur within the Port Chalmers Breccia, a diatreme at the centre of the Dunedin stratovolcano, New Zealand. Schists have undergone varying degrees of replacement reactions (at temperatures of 300° to >500°C) producing hornfelses, with Ca‐ and K‐enriched ...
Alan F. Cooper
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The First Archaeomagnetic Age at Tiwanaku and Implications for Dating Andean Metallurgical Furnaces
Archaeometry, Volume 68, Issue 3, Page 317-329, June 2026.ABSTRACT This paper presents the first archaeomagnetic dating at Tiwanaku (Andean Altiplano). We compared the geomagnetic field values recorded by a metallurgical furnace against an updated SHAWQ2k‐SH global model and a regional intensity curve, both of which include, for the first time, high‐quality intensity data from the Southern Hemisphere. Results
Judit del Río +6 more
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Self-propelled platinum based magnetite Janus nanomotors prepared from PCL and PHEMA graft copolymer with physicochemical properties motility and peroxidase-like activity. [PDF]
Sci RepNikfar B +5 more
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Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 391-406, June 2026.Key Points A new magnetite reference material (PF21mt) is available for δ18O measurements by SIMS. Reproducibility of measurement results in two laboratories suggest orientation bias of ±2‰ (2s) at 20 keV. Repeatability improves to ±1‰ (2s) when using a 13 keV protocol, suggesting reduced orientation bias. In situ isotope ratio measurements provide the
Michelle Ulrich +4 more
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Esterification synthesis of iron oxide nanoparticle tracers for magnetic particle imaging (MPI). [PDF]
NanoscaleVelazquez-Albino AC +10 more
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Geostandards and Geoanalytical Research, Volume 50, Issue 2, Page 407-418, June 2026.Key Points Two haematite and magnetite materials were developed as potential Fe isotope reference materials. Solution and in situ LA‐MC‐ICP‐MS analyses yielded consistent δ56Fe values. Both materials are isotopically homogeneous and suitable for in situ Fe isotope calibration.
Jialu Yu +4 more
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Temporal changes in Angkorian ironmaking technology in Northern Cambodia during the 10th-14th centuries. [PDF]
Sci RepAzami K +6 more
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Temperature‐Driven Silicate Weathering Feedbacks Terminated the Middle Eocene Climatic Optimum
Geophysical Research Letters, Volume 53, Issue 9, -Not available-.Abstract Continental hydroclimate dynamics and its responses during the Middle Eocene Climatic Optimum (MECO, ∼40 Ma) remain largely unexplored. Here, we present high‐resolution multi‐proxy records from four East Asian lake basins that demonstrate precipitation, chemical weathering, and terrestrial input underwent multi‐phase changes during the MECO ...
Yiquan Ma +6 more
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Nanolite cargo evolution in trachybasaltic glass comparing magnetite and augite. [PDF]
Sci RepCassetta M +11 more
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Effects of Magnetite Powder on Microwave Heating Properties and Pavement Performance of Asphalt Mixture. [PDF]
Materials (Basel)Zhu H, Zhang Y, Hu F, Yu M, Wang W.
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