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 …

The Bosumtwi impact crater in Ghana, arguably the best‐preserved complex young impact
structure known on Earth, displays a pronounced rim and is almost completely filled by Lake …

Airbursts/impacts by a fragmented comet or asteroid have been proposed at the Younger
Dryas onset (12.80±0.15 ka) based on identification of an assemblage of impact-related …

It has been proposed that fragments of an asteroid or comet impacted Earth, deposited silica-
and iron-rich microspherules and other proxies across several continents, and triggered the …

In the Earth's crust, Ni is generally concentrated in mafic and ultramafic rocks and is coupled
with Mg in Mg-olivine, Mg-pyroxene and spinel. Whether the Ni-rich, and in general, the …

During the formation of large impact structures, layers of melted and crushed rock (ejecta)
are deposited over large areas of the Earth's surface. Ejecta thrown farther than 2.5 crater …

Extraterrestrial impacts have left a substantial imprint on the climate and evolutionary history
of Earth. A rapid carbon cycle perturbation and global warming event about 56 million years …

Australasian microtektites were discovered in Ocean Drilling Program (ODP) Hole 1143A in
the central part of the South China Sea. Unmelted ejecta were found associated with the …

Kamil crater (Egypt) is a natural laboratory for the study of processes and products
associated with the impacts of small iron projectiles on the Earth's crust. In particular …

Lithium (Li) abundances and isotope compositions were determined in a representative
suite of tektites (moldavites, Muong Nong-type tektites and an australite, Ivory Coast tektites …