Results 51 to 60 of about 1,765 (166)

Large Carbonaceous Chondrite Parent Bodies Favored by Abundance–Volatility Modeling: A Possible Chemical Signature of Pebble Accretion

The Planetary Science Journal
Primitive meteorite groups such as the Vigarano, Mighei, and Karoonda carbonaceous chondrites have enigmatic patterns of elemental abundances, with moderately volatile elements—those that transition from vapor to condensate between ∼400 and ∼900 K ...
Jeremy W. Boyce, Francis M. McCubbin, Nicole Lunning, Tyler Anderson   +3 more
doaj   +1 more source

Quantifying the High Early Solar Cosmic-Ray Flux with Cosmogenic Neon Isotopes in Refractory Minerals

The Astrophysical Journal
An enhancement in the activity of the early young Sun resulting in a high charged particle flux has been invoked to explain excesses in spallation-induced nuclides in primitive planetary materials.
Xin Yang, Fred J. Ciesla, Philipp R. Heck   +2 more
doaj   +1 more source

Exploring the Neutrino Mass Hierarchy from Isotopic Ratios of Supernova Nucleosynthesis Products in Presolar Grains

The Astrophysical Journal
We study the nucleosynthesis in a core-collapse supernova (CCSN) model including newly calculated neutrino-induced reaction rates with both collective and Mikheyev–Smirnov–Wolfenstein neutrino flavor oscillations considered.
Xingqun Yao, Toshitaka Kajino, Yudong Luo, Takehito Hayakawa, Toshio Suzuki, Heamin Ko, Myung-Ki Cheoun, Seiya Hayakawa, Hidetoshi Yamaguchi, Silvio Cherubini   +9 more
doaj   +1 more source

Fe isotopic composition of Martian meteorites [PDF]

, 2005
In the present work, we have measured iron isotope compositions of a group of Martian meteorites to establish a baseline Fe-isotope fractionation pattern in the case of high-temperature igneous rocks from Mars.
Anand, M., Russell, S. S., Mullane, E., Grady, M. M.   +3 more
openaire  

Development of a mineralogically replicated Martian regolith simulant informed by Martian meteorites

Cleaner Materials
Martian regolith simulants play a critical role in scientific research, payload testing, and in situ resource utilization (ISRU) experiments. However, the absence of actual Martian soil samples limits the accuracy of current simulants in replicating the ...
Yutong Deng, Feng Li, Siqi Zhou, Xinyang Tao, Jiayuan Liu, Zhiqian Lin   +5 more
doaj   +1 more source

Microbial methanogenesis fueled by freshwater infiltration and oil biodegradation in the Siljan impact structure, Sweden

Discover Applied Sciences
Deeply fractured rocks of meteorite impact craters are suggested as prime niches for subsurface microbial colonization. Methane can be a product of such microbial communities and seeps of methane from impact craters on Earth are of strong interest as ...
Femke van Dam, Riikka Kietäväinen, George Westmeijer, Manuel Reinhardt, Shuhei Ono, Mark Dopson, Marcelo Ketzer, Jennifer C. McIntosh, Henrik Drake   +8 more
doaj   +1 more source

Method Development for the Analysis of Carbonaceous Chondrites by Laser Desorption/Ionization and Secondary Ion Time-of-Flight Mass Spectrometry. [PDF]

J Mass Spectrom
Rados E, Frank J, Pittenauer E.
europepmc   +1 more source

Raman Spectroscopy and X-Ray Diffraction Investigations of Phase Composition of Tiglit Meteorite. [PDF]

Materials (Basel)
Karczemska A, Dudek M, Januszewicz B, Jakubowski T, Mitura S.   +4 more
europepmc   +1 more source

Asteroid sample return missions are critical for understanding our Solar System. [PDF]

Nat Commun
Bates H.
europepmc   +1 more source

Researches on the Chemical and Mineralogical Composition of Meteorites [PDF]

Proceedings of the National Academy of Sciences, 1915
openaire   +2 more sources