Meteorite Minerals.

Fossil Particle Tracks and Uranium Distributions in Minerals of the Vaca Muerta Meteorite.

Fossil tracks of charged particles have been observed in minerals separated from the Vaca Muerta mesosiderite. Irradiation of samples of the meteorite with thermal neutrons in a nuclear reactor, together with measurements of track-length distribution, indicate that some of the tracks result from the spontaneous fission of uranium impurities; others, however, are of different origin. Uranium con...

Rare-earth Minerals in Martian Meteorite Nwa 7034/7533: Evidence for Fluid-rock Interaction in the Martian Crust

Implications for the Abundance of Water on Early Mars as Evidenced by the Presence of Secondary Minerals in Martian Meteorite

Evidence for Water on Early Mars: Although numerous lines of evidence suggest that Mars must have been a "wet" planet at some time in its past, there is no universal agreement on the volume of hydrous activity, its style, or the characteristics of the corresponding climates through time. Morphological evidence for the presence of surface water on Mars is abundant [1-3] as is evidence for the ex...

Meteorite studies

eteorites yield a wealth of information concerning Solar System origin, geochemical evolution of primitive parent objects, and irradiation histories of material in space. Since the numerous (approximately 16,000) antarctic meteorites include many of rare or unique types, current extraterrestrial materials research attention focuses on this population. Antarctic meteorites also have the potentia...

Educational Meteorite Thin Sections