Results 81 to 90 of about 34,086 (157)

The Hermean Helium Exosphere—Continuous and Sporadic Helium Release Processes

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.
Abstract Since its detection by Mariner 10, helium has been a key focus in studies of Mercury's exosphere. Recently, Weichbold et al. (2025), https://doi.org/10.1029/2024je008679 provided the first in situ helium measurements, inferring density from Ion Cyclotron Wave (ICW) events observed by the MESSENGER spacecraft.
J. Hener   +5 more
wiley   +1 more source

Controlled comparative tensile tests of backed versus non‐backed edges’ adhesion: Inferences into stone tool functional properties

open access: yesArchaeometry, Volume 67, Issue 2, Page 267-283, April 2025.
Abstract Backing is a procedure for retouching a stone tool edge to an angle of or near 90°. Archaeologists have recorded backed lithic specimens in the Pleistocene and Holocene around the world. One prominent hypothesis for the occurrence of backing is that it increases a stone tool's adhesion relative to what it would have otherwise been with ...
Michael Wilson   +5 more
wiley   +1 more source

Hydrothermal Synthesis of Kaolinite Group Minerals. [PDF]

open access: yesMaterials (Basel)
Koroleva T   +7 more
europepmc   +1 more source

Stone products of the Roman municipium of Neviodunum, Pannonia (modern Drnovo, Slovenia)

open access: yesArchaeometry, Volume 67, Issue 2, Page 284-312, April 2025.
Abstract The paper presents the lithologies used in the stone products of Neviodunum (modern Drnovo in Slovenia), a Roman municipium in south‐western Pannonia. For this purpose, 95 stone monuments were assessed. Petrographic and biostratigraphic analyses were carried out on 56 archaeological and 57 geological samples.
Katharina Zanier   +3 more
wiley   +1 more source

Zircon geochemistry from early evolved terranes records coeval stagnant- and mobile-lid tectonic regimes. [PDF]

open access: yesProc Natl Acad Sci U S A
Mixon EE   +6 more
europepmc   +1 more source

Evidence of glass bead‐making in the early Islamic Iberian Peninsula

open access: yesArchaeometry, Volume 67, Issue 2, Page 364-379, April 2025.
Abstract Glass beads from two Islamic archaeological sites in the Tagus valley in central Spain were selected and analysed by laser ablation inductively coupled plasma mass spectrometry (LA‐ICP‐MS), and a subset of samples (n = 6) was analysed for Pb isotopes by multicollector thermal ionization mass spectrometry (MC‐TIMS).
Cristina Boschetti   +4 more
wiley   +1 more source

Geochemistry of lithospheric aqueous fluids modified by nanoconfinement. [PDF]

open access: yesNat Geosci
Chogani A   +4 more
europepmc   +1 more source

Petrochronology of High‐Pressure Veins Reveals the Evolution of Fluid Sources in Subducted Oceanic Crust (Rocciavrè Eclogites, W. Alps)

open access: yesJournal of Metamorphic Geology, Volume 43, Issue 3, Page 225-256, April 2025.
ABSTRACT The Rocciavrè massif is a large eclogitized ophiolitic fragment exposed in the Western Alps (Piemonte, Italy) exhibiting an almost complete sequence of the subducted Liguro‐Piemont lithosphere. Raman spectroscopy on carbonaceous material in metasediments from Rocciavrè and the juxtaposed Orsiera massif indicates maximum temperatures in the ...
Clément Herviou   +4 more
wiley   +1 more source

Home - About - Disclaimer - Privacy