Cubic zirconia in >2370 °C impact melt records Earth's hottest crust
Sign Up to like & getrecommendations! Published in 2017 at "Earth and Planetary Science Letters"
DOI: 10.1016/j.epsl.2017.08.012
Abstract: Abstract Bolide impacts influence primordial evolution of planetary bodies because they can cause instantaneous melting and vaporization of both crust and impactors. Temperatures reached by impact-generated silicate melts are unknown because meteorite impacts are ephemeral,… read more here.
Keywords: impact melt; crust; impact; earth ... See more keywords
Examining the compositions of impactors striking the Moon using Apollo impact melt coats and anorthositic regolith breccia meteorites
Sign Up to like & getrecommendations! Published in 2020 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2020.01.051
Abstract: Abstract Impactors striking the Moon since the formation of its crust have left an indelible imprint on the lunar surface, in the guise of craters and associated impact rocks. The lunar crust has low intrinsic… read more here.
Keywords: striking moon; impact melt; impact; regolith breccia ... See more keywords
Origin of discrepancies between crater size-frequency distributions of coeval lunar geologic units via target property contrasts
Sign Up to like & getrecommendations! Published in 2017 at "Icarus"
DOI: 10.1016/j.icarus.2016.11.040
Abstract: Abstract Recent work on dating Copernican-aged craters, using Lunar Reconnaissance Orbiter (LRO) Camera data, re-encountered a curious discrepancy in crater size-frequency distribution (CSFD) measurements that was observed, but not understood, during the Apollo era. For… read more here.
Keywords: crater; target property; impact melt; target ... See more keywords
Evidence for impact melt sheets in lunar highland smooth plains and implications for polar landing sites
Sign Up to like & getrecommendations! Published in 2018 at "Icarus"
DOI: 10.1016/j.icarus.2018.05.025
Abstract: Abstract Smooth plains units attributed to fluidized basin ejecta occur over much of the lunar highlands. We examined 4–20 km diameter Imbrian- and Eratosthenian-period craters in the southern highlands that have high 12.6-cm wavelength radar backscatter… read more here.
Keywords: impact melt; evidence impact; sheets lunar; smooth plains ... See more keywords
Very distant Sudbury impact dykes revealed by drilling the Temagami geophysical anomaly
Sign Up to like & getrecommendations! Published in 2019 at "Precambrian Research"
DOI: 10.1016/j.precamres.2019.02.014
Abstract: Abstract The Temagami Anomaly is one of the largest unexplained magnetic features in North America. It is similar in size and shape to the geophysical anomaly that marks the 1.85 Ga Sudbury Igneous Complex (SIC) in… read more here.
Keywords: impact melt; impact; sudbury impact; anomaly ... See more keywords
The impact of melt versus mechanical wear on the formation of pseudotachylyte veins in accretionary complexes
Sign Up to like & getrecommendations! Published in 2022 at "Scientific Reports"
DOI: 10.1038/s41598-022-05379-5
Abstract: Whether seismic rupture propagates over large distances to generate mega-earthquakes or is rapidly aborted mainly depends on the slip processes within the fault core, including particularly frictional melting or intense grain-size reduction and amorphization. The… read more here.
Keywords: impact melt; slip; spectroscopy; accretionary complexes ... See more keywords