Results 41 to 50 of about 441 (171)

Ryugu reference project: Recommendations from the measurement definition team

Meteoritics &Planetary Science, Volume 61, Issue 5, Page 819-848, May 2026.
Abstract Sample return missions play a significant role in planetary science by providing pristine extraterrestrial materials. JAXA's Hayabusa2 and NASA's OSIRIS‐REx missions have returned samples from the C‐type asteroids Ryugu and Bennu, respectively. The chemical and mineralogical compositions of these samples closely resemble those of CI chondrites,
Tetsuya Yokoyama, Guillaume Avice, Henner Busemann, Nicolas Dauphas, Daniel P. Glavin, Ashley J. King, Thorsten Kleine, Katharina Lodders, Frederic Moynier, Maria Schönbächler, Yoshinori Takano, Kun Wang, Hikaru Yabuta, Yuma Enokido, Ryota Fukai, Shogo Tachibana, Tomohiro Usui   +16 more
wiley   +1 more source

Biogeochemical impact of nickel and urea in the great oxidation event

Communications Earth & Environment
The Great Oxidation Event marks the first substantial increase in atmospheric oxygen on Earth. Despite the oxygenic photosynthesis that emerged hundreds of million years before this event, the specific biogeochemical mechanisms responsible for ...
Dilan M. Ratnayake, Ryoji Tanaka, Eizo Nakamura   +2 more
doaj   +1 more source

The FANCD2–FANCI complex is recruited to DNA interstrand crosslinks before monoubiquitination of FANCD2

Nature Communications, 2016
FANCD2 and FANCI are essential components of the Fanconi anaemia DNA damage repair pathway. Here the authors present the cryo-EM structure of the FANCD2-FANCI complex, providing insight into how the complex is recruited to stalled replication forks.
Chih-Chao Liang, Zhuolun Li, David Lopez-Martinez, William V. Nicholson, Catherine Vénien-Bryan, Martin A. Cohn   +5 more
doaj   +1 more source

Non‐innocent solvents in meteorite extractions: Evidence for artifact formation

Meteoritics &Planetary Science, Volume 61, Issue 4, Page 706-719, April 2026.
Abstract Solvent extraction is a cornerstone of meteoritic organic and inorganic chemistry, yet the assumption that common solvents act as chemically inert media is becoming increasingly untenable. This study reports that low‐molecular‐weight alcohols, particularly methanol and ethanol, are “non‐innocent” solvents when used to extract soluble sulfur ...
N. Randazzo, R. W. Hilts, R. M. Whittal, B. Reiz, V. Olan‐Rubio, C. D. K. Herd, I. H. Krouse   +6 more
wiley   +1 more source

Multidisciplinary Analyses of Terrestrial Samples Used to Interpret an Inorganic Origin (Anhydrite:Ce3+) for the 304 and 325‐nm Doublet Fluorescence Detected by the Mars 2020 SHERLOC Instrument at Jezero Crater

Journal of Geophysical Research: Planets, Volume 131, Issue 3, March 2026.
Abstract Doublet fluorescence at 304 and 325‐nm under deep ultraviolet (DUV) excitation was detected on Mars at Jezero crater by the Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC) instrument onboard the Mars 2020 rover Perseverance.
N. C. Haney, R. V. Morris, R. S. Jakubek, J. V. Clark, J. I. Simon, W. P. Buckley, R. T. Downs, E. B. Rampe, R. M. G. Armytage, T. G. Graff, A. S. Burton, F. M. McCubbin, E. L. Berger, V. M. Tu, P. D. Casbeer, S. A. Mertzman, K. H. Williford, E. L. Scheller, T. Fornaro, S. Siljeström, A. Steele, K. P. Hand, T. J. Lapen   +22 more
wiley   +1 more source

Review of Analytical Lithium Detection and Quantification Methods Along the Lithium Value Chain

Applied Research, Volume 4, Issue 6, December 2025.
This article reviews a selection of suitable state‐of‐the‐art analytical methods for different scales of spatial resolution and detection of lithium for a variety of lithium‐bearing materials along the lithium value chain. The various materials differ greatly in terms of their lithium content by more than 5 orders of magnitude and also vary in their ...
Nico Kropp, Ralf Halama, Ralf B. Wehrspohn   +2 more
wiley   +1 more source

Low‐Frequency Raman Spectra of Natural Pyrrhotites: Polarization Dependence for Its Lattice Modes

Journal of Raman Spectroscopy, Volume 56, Issue 12, Page 1529-1536, December 2025.
The present study found low‐wavenumber Raman modes of pyrrhotite Fe1‐xS at ~68, ~87, ~117, and ~230 cm−1 for the first time, thanks to a lab‐built Raman spectrometer, in which the optical path of the incident laser was purged by Ar gas. The sufficiently high signal‐to‐noise and signal‐to‐base ratios enabled us to obtain the polarization dependence of ...
Shu‐hei Urashima, Mana Kito, Shiori Nakajima, Kenichi Oguchi, Aruto Kashima, Hiroharu Yui   +5 more
wiley   +1 more source

Comparison of Two Methods for Determination of Rhenium and Platinum‐Group Elements in Meteorites Using On‐Line and Off‐Line Matrix Separation Modes

Geostandards and Geoanalytical Research, Volume 49, Issue 4, Page 737-750, December 2025.
Key Points PEEK tubing has been observed to adsorb Pd and Pt ions, resulting in significantly reduced recoveries of Pd and Pt elements. HPA‐S provides a more effective dissolution for meteorite samples than Carius tube digestion, resulting in higher mass fractions for PGE.
Yuling Zeng, Guiqin Wang, Thomas C. Meisel   +2 more
wiley   +1 more source

The cosmochemistry of planetary systems

Nature Reviews Chemistry
Authors' version of our review in Nature Reviews ...
Martin Bizzarro, Anders Johansen, Caroline Dorn   +2 more
openaire   +3 more sources

Iron Isotope Ratios of IAEA B5 Basalt and Whole‐Rock Reference Materials (JB‐2, BHVO‐2, AGV‐1, BE‐N and RGM‐1) Determined by Multi‐Collector Inductively Coupled Plasma‐Mass Spectrometry

Geostandards and Geoanalytical Research, Volume 49, Issue 4, Page 901-914, December 2025.
Key Points An Fe isotope measurement method using MC‐ICP‐MS was developed, improving data quality and interlaboratory data comparability. Fe isotope ratios were measured for five geological reference materials and new δ56Fe and δ57Fe values proposed for IAEA‐B5.
Paolo Di Giuseppe, Simone Vezzoni, Stefano Iannini Lelarge, Andrea Rielli, Samuele Agostini, Andrea Dini   +5 more
wiley   +1 more source