Results 101 to 110 of about 85,610 (304)

Cosmic-ray exposure ages of fossil micrometeorites from mid-Ordovician sediments at Lynna River, Russia

open access: yes, 2014
We measured the He and Ne concentrations of 50 individual extraterrestrial chromite grains recovered from mid-Ordovician (lower Darriwilian) sediments from the Lynna River section near St. Petersburg, Russia. High concentrations of solar wind-like He and
Lindskog, Anders   +4 more
core   +1 more source

The effect of terrestrial weathering on the mineralogy and petrologic (sub)types of CM chondrites explored by kinetic modeling and laboratory experiments

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Terrestrial weathering alters the chemical and isotopic composition, and mineralogy, of meteorites; its effects on ordinary chondrites are well‐studied, but relatively little is known about the susceptibility of carbonaceous chondrites. We combined laboratory experiments, whereby Chwichiya 002 (C3‐ung find), Murchison (CM2 fall) and Kolang ...
Robin L. Haller   +2 more
wiley   +1 more source

Data-Driven UPLC-Orbitrap MS Analysis in Astrochemistry

open access: yesLife, 2019
Meteorites have been found to be rich and highly diverse in organic compounds. Next to previous direct infusion high resolution mass spectrometry experiments (DI-HR-MS), we present here data-driven strategies to evaluate UPLC-Orbitrap MS analyses.
Alexander Ruf   +4 more
doaj   +1 more source

Geochemistry and petrology of primitive achondrite meteorites LEW 88280, MAC 88177, ALHA 81187, EET 84302, and LEW 88663 [PDF]

open access: yes
Primitive achondrites are meteorites that have mineral and bulk chemical compositions similar to the most primitive meteorites (chondrites) but have textures similar to more evolved meteorites (achondrites).
Field, Stephen W.
core   +1 more source

A perspective from extinct radionuclides on a Young Stellar Object: The Sun and its accretion disk

open access: yes, 2011
Meteorites, which are remnants of solar system formation, provide a direct glimpse into the dynamics and evolution of a young stellar object (YSO), namely our Sun.
Christophe Michel-Lévy M   +20 more
core   +1 more source

Aqueous alteration in C2‐ung Bells through the analysis of carbonates – Does a CR origin ring true?

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Bells is an ungrouped carbonaceous chondrite that has in recent years been proposed as a CR‐an. This link to CR chondrites has previously been identified through the analysis of anhydrous silicates, for example, oxygen isotopic compositions of olivine (Marrocchi et al., 2023).
L. J. Riches   +4 more
wiley   +1 more source

Multi-satellite Universat-SOCRAT mission for monitoring technogenic and natural hazards

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2019
The natural and “man-made” space environment generates serious risks for the implementation of space missions, both automatic and human. The main natural and technogenic risk factors that limit or pose a threat to the implementation of space-based ...
V. A. Sadovnichiy   +20 more
doaj   +1 more source

Relationships among basaltic lunar meteorites [PDF]

open access: yes
During the past two years four meteorites of dominantly mare basalt composition were identified in the Japanese and US Antarctic collections. Basalts represent a much higher proportion of the lunar meteorites than is expected from photogeologic mapping ...
Lindstrom, Marilyn M.
core   +1 more source

The Meteoritical Bulletin, No. 114

open access: yesMeteoritics &Planetary Science, EarlyView.
Abstract Meteoritical Bulletin 114 contains the 1944 meteorites approved by the Nomenclature Committee of the Meteoritical Society in 2025. It includes 15 observed falls, 1336 ordinary chondrites, 213 HED, 106 carbonaceous chondrites (including 8 ungrouped), 86 lunar meteorites, 39 ureilites, 28 iron meteorites (2 ungrouped), 24 martian meteorites, 24 ...
Jérôme Gattacceca   +12 more
wiley   +1 more source

Experimental simulation of registration of objects of space

open access: yesФизика волновых процессов и радиотехнические системы, 2013
Developed a laboratory prototype onboard optical detection system of dust particles of space, space debris, meteorites, and the parameters of their motion, based on the stereoscopic effect.
E.J. Baryshev, N.D. Semkin, K.E. Voronov
doaj  

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