In the geological sciences it has only recently been recognized how important the process of
impact cratering is on a planetary scale, where it is commonly the most important surface …

More than 50 years of space and planetary exploration and concomitant studies of terrestrial
impact structures have demonstrated that impact cratering has been a fundamental process …

The Cretaceous-Paleogene (K-Pg) mass extinction is marked globally by elevated
concentrations of iridium, emplaced by a hypervelocity impact event 66 million years ago …

The~ 180-km-diameter Chicxulub peak-ring crater and~ 240-km multiring basin, produced
by the impact that terminated the Cretaceous, is the largest remaining intact impact basin on …

We report the discovery of a large impact crater beneath Hiawatha Glacier in northwest
Greenland. From airborne radar surveys, we identify a 31-kilometer-wide, circular bedrock …

Aluminum-magnesium isotopic analysis of plagioclase in the eucrite Piplia Kalan, with
27Al/24Mg ratio between 2000 to 7000, reveals the presence of excess magnesium-26 …

A requirement for the recognition and confirmation of meteorite impact structures is the
presence of shock metamorphic indicators, either megascopic (eg shatter cones) or …

Apollo 15 quartz monzodiorites (QMDs) are reported to contain some of the most deuterium-
depleted apatite found in lunar samples. In this study, apatite from six Apollo 15 QMDs …

40Ar/39Ar dating of recrystallized K‐feldspar melt particles separated from partially molten
biotite granite in impact melt rocks from the approximately 24 km Nördlinger Ries crater …

Bolide impacts influence primordial evolution of planetary bodies because they can cause
instantaneous melting and vaporization of both crust and impactors. Temperatures reached …