Results 101 to 110 of about 19,633 (239)

Volatile Element Depletion of Carbonaceous Chondrites—Insights from Mass-dependent Zinc, Cadmium, and Tellurium Isotope Variations

The Astrophysical Journal
The origin of volatile depletion in the solar system remains a topic of intense debate. To further inform our understanding of the mechanisms involved, this study characterized the mass-dependent Zn, Cd, and Te isotope compositions and concentrations of ...
Elin M. Morton, Harvey Pickard, Frank Wombacher, Yihang Huang, Emeliana Palk, Rayssa Martins, Sven Kuthning, Maria Schönbächler, Mark Rehkämper   +8 more
doaj   +1 more source

The Halogen Composition of Shergottite Meteorites [PDF]

Goldschmidt Abstracts, 2020
Ray Burgess, Patricia Clay, Lorraine Ruzie-Hamilton   +2 more
openaire   +1 more source

The oxygen isotopic composition of water extracted from carbonaceous chondrites [PDF]

, 2001
The oxygen isotopic composition of water from carbonaceous chondrites suggests that close to isotopic equilibrium was attained on CI and CM parent bodies. This is more consistent with a closed system than one with fluid flow. Tagish Lake does not display
Baker, L., Franchi, Ian, Pillinger, Colin, Wright, Ian   +3 more
core  

Composition of the L5 Mars Trojans: Neighbors, not Siblings

, 2007
Mars is the only terrestrial planet known to have Tro jan (co-orbiting) asteroids, with a confirmed population of at least 4 objects. The origin of these objects is not known; while several have orbits that are stable on solar-system timescales, work by ...
Andrew S. Rivkin, Berlin, Burbine, Burbine, Bus, Clark, Clark, Clark, Cloutis, Connors, Cristina A. Thomas, David E. Trilling, Delbó, Dixon, Francesca DeMeo, Gaffey, Gaffey, Gendrin, Gomes, Hinrichs, Kallemyn, Kurat, Landolt, Marzari, McSween, Morbidelli, Moroz, Rayner, Richard P. Binzel, Rivkin, Rivkin, Rivkin, Rubin, Scholl, Singer, Sunshine, Tabachnik, Timothy B. Spahr, Trilling, Varela, Weisberg   +40 more
core   +1 more source

Resolving the Internal Magnetic Domain Structure of Cloudy Zone Tetrataenite

Geophysical Research Letters, Volume 53, Issue 9, 16 May 2026.
Abstract Recent advances in magnetic imaging can directly capture the internal magnetization of natural and synthetic materials at resolutions <10 nm. This capability opens new possibilities to determine the magnetic domain state of ferromagnetic minerals that are fundamental for recording and retaining paleomagnetic records.
Elias N. Mansbach, Richard J. Harrison, Tim A. Butcher, Simone Finizio, Sergio Valencia, Thomas Ginnis   +5 more
wiley   +1 more source

Constraining the Hydration of Clay Minerals and Abundances of Amorphous Phases in Gale Crater, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Both water and organic matter are required for the development and persistence of life. Phyllosilicates (clay minerals) have high surface areas that easily sorb water and organic matter. The Curiosity rover has investigated several hundred meters of stratigraphy in Gale crater, including where clays were detected from orbit.
Sean Czarnecki, Craig Hardgrove, Liz Rampe, Patrick Gasda   +3 more
wiley   +1 more source

Trace element composition of silicate minerals from Kunashak Meteorite (L6)

Записки Горного института
Major (EPMA) and trace (SIMS) element geochemistry in the silicate minerals (olivine, pyroxene and plagioclase) of Kunashak equilibrated ordinary chondrite (L6) is described. No variations in the major element concentrations of the silicate minerals have
Kristina G. Sukhanova, Olga L. Galankina
doaj  

In Situ Detection of Opal‐A in Jezero Crater, Mars

Journal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract We report the in situ detection of amorphous hydrated silica in the Bills Bay abrasion patch, located in the eastern portion of the Margin Unit between the rim of Jezero crater and the western delta. Here, hydrated silica co‐occurs with olivine, Fe‐Mg carbonates, secondary Fe‐Mg silicates, and hydrated Mg‐sulfate as determined by UV Raman ...
Sergei V. Bykov, Kenneth H. Williford, Anushree Srivastava, Andrew Steele, Linda C. Kah, Travis A. Olds, Sunanda Sharma, Richard V. Morris, Kimberly Poppy Sinclair, Ryan S. Jakubek, Nikole C. Haney, Francis M. McCubbin, Mariek E. Schmidt, Ashley E. Murphy, Sandra Siljeström, Eva L. Scheller, William Abbey, Sanford A. Asher, Kevin P. Hand, Kyle Uckert, Jeffrey T. Osterhout, Carina Lee, Rohit Bhartia, Michelle E. Minitti, Joanna V. Clark, Patrick Casbeer, Shiv K. Sharma   +26 more
wiley   +1 more source

Trace element composition of troilite, iron and iron-nickel metall from meteorite Chelyabinsk

Литосфера, 2015
We studied the contents of trace elements in troilite, iron and in iron-nickel metal from meteorite Chelyabinsk by means of LA-ICP-MS. The features of the distribution of siderophile and chalcophile elements in sulfide and metallic phase in gray and ...
S. Yu. Stepanov, S. V. Berzin
doaj   +2 more sources

Isotopic composition of silver in iron meteorites

Journal of Geophysical Research, 1964
With a view to developing a new dating method based on extinct 6.8 m.y. Pd/sup 107/, silver was isolated from 18 samples of the iron meteorites Bristol, Canyon Diablo, Grant, Odessa, Pinon, Sandia Mountains, and Toluca. The silver concentation (11 to 197 ppb) was determined on an aliquot by isotope dilution and also by neutron activation analysis of ...
A. K. Chakraburtty, C. M. Stevens, H. C. Rushing, E. Anders   +3 more
openaire   +2 more sources