Northwest Africa (NWA) 8159 is an augite-rich shergottite, with a mineralogy dominated by
Ca-, Fe-rich pyroxene, plagioclase, olivine, and magnetite. NWA 8159 crystallized from an …

The microtexture and mineralogy of shock melts in the Tissint martian meteorite were
investigated using scanning electron microscopy, Raman spectroscopy, transmission …

Abstract Ahrensite (IMA 2013-028), γ-Fe 2 SiO 4, is the natural Fe-analog of the silicate-
spinel ringwoodite (γ-Mg 2 SiO 4). It occurs in the Tissint Martian meteorite, where it forms …

The accurate dating of igneous and impact events is vital for the understanding of Solar
System evolution, but has been hampered by limited knowledge of how shock …

In various shocked meteorites, low-pressure silica polymorph α-cristobalite is commonly
found in close spatial relation with the densest known SiO2 polymorph seifertite, which is …

Post-shock annealing of meteorites can destroy their shock-induced features, particularly
high-pressure minerals, and complicate the estimation of impact pressure–temperature …

NWA 8159 is an augite-rich martian basalt, formed by cooling of a relatively evolved, Ca-
rich, Ti-poor and LREE-depleted lava, under relatively oxidizing conditions, during the early …

The pressure-induced amorphization of the two endmembers of the plagioclase ((Na 1− x
Ca x) Al 1+ x Si 3− x O 8) solid-solution, anorthite (CaAl 2 Si 2 O 8) and albite (NaAlSi 3 O 8) …

We report unambiguous chemical evidence for subsurface water activity in the martian crust
at< 600 Ma based on the data from Tissint, a fresh martian meteorite fall with minimal …

To constrain how impacts influence the behavior of moderately volatile elements (MVEs), we
report potassium (K) and zinc (Zn) contents and isotopic compositions of shock melt pockets …