Experimental Study of Impact Vaporization of Serpentinite

Doklady Earth Sciences - Experimental data on impact vaporization of serpentinite are presented. The experiment was carried out using a two-stage light gas gun with an impact velocity ∼6...     

A High-Temperature Al–Ca Condensate in the Lunar Regolith

Doklady Earth Sciences - For the first time, a high-temperature condensate in the form of two-component glass beads of about 200–400 nm size, consisting of an Al–Ca oxide core rimmed by...     

Eskolaite in the regolith of the Taurus-Littrow Valley

Eskolaite crystals were discovered in the course of Scanning Electron Microscopy (SEM) studies of the regolith sample, which was delivered from the continental area between Serenitatis and Tranquilitatis Maria during the Apollo 17 mission. The finding was compared with an analogue sampled from Mare Crisium (Luna 24 mission). A condensate-impact origin of eskolaite is assumed for both findings. It was demonstrated that the eskolaite of the Apollo 17 probe is genetically and morphologically identical to the eskolaite from the Luna 24 probes.     

Discovery of HgS in the Lunar Regolith from Apollo-17 Samples

Doklady Earth Sciences - A 3-µm particle of HgS is found by electron microscopy techniques in studying the lunar regolith samples delivered by Apollo 17. It might have been preserved due to a...     

Native Cobalt from the Regolith of Mare Crisium

Doklady Earth Sciences - For the first time, high-purity native cobalt was detected in two preparations from a lunar regolith sample delivered by the Luna 24 automatic station. Presumably, it was...     

Tantalo–Niobate from the Apollo-17 Regolith

Doklady Earth Sciences - Particles of tantalo–niobate of the ferrotantalite-manganotantalite series are discovered for the first time in two lunar regolith fragments delivered by the...     

A High-Temperature Impact Condensate of the Lonar Crater (India)

Doklady Earth Sciences - A high-calcium high-temperature condensate is detected in the Earth’s impact Lonar crater for the first time. Its finding confirms in practice the theoretical...     

Native Alloys of the Pd–Pt and Ni–Cu–Al Systems from the AS Luna-24

The close intergrowth of two native alloys of the compositions Ni_0.59Cu_0.24Al_0.15Fe_0.01Mn_0.01 and Pd_0.55Pt_0.36Rh_0.09 with a size of 10 μm has been discovered in the regolith from the Mare Crisium. A conclusion on its exhalative origin is made.