Results 201 to 210 of about 74,370 (266)

Progress in Resource Evaluation Using a Handheld Raman Instrument Developed for Astronaut Missions

open access: yesJournal of Raman Spectroscopy, Volume 56, Issue 11, Page 1418-1433, November 2025.
Analogue studies were undertaken using a prototype, handheld Raman spectrometer (developed for astronaut usage on the moon) to collect data that would indicate the presence of water and help develop the technology to search for valuable trace elements (such as lithium and caesium).
J. G. T. Armstrong   +5 more
wiley   +1 more source

Iron disproportionation in peridotite fragments from the mantle transition zone. [PDF]

open access: yesNat Commun
Pan F   +10 more
europepmc   +1 more source

Analyses of Apollo 17 Samples Using the Quantitative Microanalysis Explorer: A Web‐Based Visualization Platform to Study Optical, Electron, and X‐Ray Imaging Data

open access: yesJournal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract We have developed the Quantitative Microanalysis Explorer, or QME‐Tool, a web‐based platform for visualization of large imaging data sets and interrogation of quantitative elemental maps acquired by electron microprobes. Using a combination of open‐source JavaScript libraries and custom scripts, the QME‐Tool can be used to quickly identify ...
Angelina Minocha   +4 more
wiley   +1 more source

Widespread ilmenite contributions to the surface water cycle in lunar Procellarum KREEP Terrane. [PDF]

open access: yesNat Commun
Xu Y   +16 more
europepmc   +1 more source

Evidence for Caribbean Plate Subduction Beneath the Isthmus of Panama and Implications for Subduction Initiation and the Closure of the Central American Isthmus During the Miocene

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract The evolution of the Isthmus of Panama during the Miocene resulted in climatic shifts leading to global cooling, reorganization of ocean currents, and regional mass extinctions. The causes of this change in ocean circulation between ∼15 and 5 Ma have been debated, with various tectonic scenarios being proposed as explanations for this event ...
James R. Bourke   +3 more
wiley   +1 more source

Emergent Feedbacks Between Progressive Serpentinization, Interface Weakening, and Subduction Rates

open access: yesGeochemistry, Geophysics, Geosystems, Volume 26, Issue 11, November 2025.
Abstract During subduction, the downgoing oceanic crust is exposed to high temperatures in the mantle wedge, causing volatile‐bearing minerals to break down and release hydrous fluids into the forearc. These fluids percolate upwards, reacting with the mantle wedge to form hydrated ultramafic lithologies, including serpentinite.
R. K. Stoner   +4 more
wiley   +1 more source

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