Results 101 to 110 of about 6,413 (223)
Rapid terrestrial weathering of the CI1 carbonaceous chondrite find Oued Chebeika 002
Abstract Alteration of historic CI1 meteorite falls during their curation demonstrates the susceptibility of smectite‐rich carbonaceous chondrites to terrestrial exposure. The discovery of Oued Chebeika 002 in Morocco in June 2024 presents a unique opportunity to document the earliest stages of weathering of a CI1 find.
Martin R. Lee, Jasper Glazer
wiley +1 more source
Puffy Venuses: The Mass–Radius Impact of Carbon-rich Atmospheres on Lava Worlds
The recent advancements in exoplanet observations enable the potential detection of exo-Venuses, rocky planets with carbon-rich atmospheres. How extended these atmospheres can be, given high carbon abundances, has not been studied.
Bo Peng, Diana Valencia
doaj +1 more source
Abstract Libyan Desert Glass (LDG) is an ~29 million years old, silica‐rich glass found in Western Egypt. Whether this glass formed in an impact cratering context associated with the hypervelocity collision of a cometary/asteroidal body or radiative heating during an airburst is debated. Determination of the formation temperatures and pressures of rare
Niccolò Magnani +6 more
wiley +1 more source
Classification of stony meteorites and chondrules – the case of meteorite Jesenice
In the first part of the paper there is a description about genesis of meteorites, in particularly about stony meteorites– chondrites, since meteorite Jesenice is an ordinary L chondrite. Chondrules represent main part of the mass ofchondritic meteorites.
Bojan Ambrožič +3 more
doaj
Expanding the Ichnofacies Model to Tidal Straits: Testing Predictions and Assessing Anomalies
ABSTRACT Trace fossils are instrumental in facies analysis, but some depositional environments remain underexplored. Cenozoic deposits in Italy have been studied to evaluate the ichnology of tidal straits. These comprise four zones: (1) strait centre, (2) dune‐bedded strait zone, (3) strait end and (4) strait margin.
Luis A. Buatois +6 more
wiley +1 more source
SHOCKED TYPE 3 ORDINARY CHONDRITES [PDF]
第8回極域科学シンポジウム/個別セッション:[OA] 南極隕石12月6日(水)国語研究所 2階講堂The Eighth Symposium on Polar Science/Ordinary sessions: [OA] Antarctic meteoritesWed.
core +1 more source
The near-Earth asteroid (98943) Torifune, previously designated 2001 CC _21 , is the flyby target of the Hayabusa2 extended mission, nicknamed Hayabusa2 # (Small Hazardous Asteroid Reconnaissance Probe (SHARP)).
Marcel M. Popescu +13 more
doaj +1 more source
Chromites in ordinary chondrite fusion crusts
Meteorites are several orders of magnitude older than homo sapiens – or any other homo genus, for that matter. Their origin dates back to the formation of the solar system (4.56 billion years ago), whereas our species traces its roots back to two hundred thousand years in the past.
openaire +1 more source
Spectroscopy of the Hamburg Meteorite, Michigan H4
Spectroscopic studies of the Hamburg (Michigan H4) meteorite using visible–near-infrared (VNIR), mid-infrared (MIR), Raman, and Mössbauer data reproduce the results of more conventional laboratory measurements of petrology and geochemistry.
M. Darby Dyar +12 more
doaj +1 more source
Trace element composition of silicate minerals from Kunashak Meteorite (L6)
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

