Experimental shock metamorphism of the L4 ordinary chondrite Saratov induced by spherical shock waves up to 400 GPa

The Physics of Shock Waves and Experimental Shock Metamorphism: Dieter

Introduction: The cooperation between Dieter Stöffler and Ernst-Mach-Institut (EMI) [1-14] goes back to 1972 when first experiments were performed to shock single crystal feldspars by steel plates that were accelerated with an explosive plane wave generator [1,7]. The shock experiments initiated a series of studies that required versatile and reliable test methods for the generation of Hugoniot...

Post-shock Annealing and Post-annealing Shock: Implications for the Thermal and Shock Histories of Ordinary-chondrite Parent Bodies

A common view of the thermal and shock histories of ordinary-chondrite (OC) parent bodies is that, for the most part, thermal and shock metamorphism were distinguishable and successive events; e.g., the decay of 26 Al heated chon-dritic planetesimals and subsequent impacts produced various shock effects. Although collisions have long been acknowledged as capable of producing significant heating...

Shock Metamorphism of Martian Meteorites: New Data from Quantitative Shock

Introduction: The Martian origin of the group of SNCO’s comprising now 16 different meteorites is widely accepted [1]. The ejection of these meteorites from Mars requires an impact process which necessarily involves a certain level of shock metamorphism affecting the meteorites to get accelerated to Martian escape velocity. Previous studies [2 and ref. in 1] clearly showed that all 16 Martian m...

Propagation of Spherical Shock Waves in Stellar Interiors.

On converging shock waves of spherical and polyhedral form

The behaviour of converging spherical shock waves is considered using Whitham’s theory of geometrical shock dynamics. An analysis of converging shocks whose initial shape takes the form of regular polyhedra is presented. The analysis of this problem is motivated by the earlier work on converging cylindrical shocks discussed in Schwendeman & Whitham (1987). In that paper, exact solutions were re...