JMDMT #2549 Microfossils of Cyanobacteria in Carbonaceous Meteorites

The James M. DuPont Meteorite Collection - on the low-X elements or when small filaments (%3C1 _tm) or thin electron transparent sheaths were studied, additional EDS data were taken at 5 keV to minimize contributions by high-Z elements in the matrix near or under the filament. During the past decade, a wide variety of samples have been studied at the NASA/NSSTC Astrobiology Laboratory. These include several different types of meteorites (carbonaceous, stony and nickel-iron, diogenites and SNC meteorites) and other astromaterials (Lunar dust collected during the NASA Apollo 11. 12, and 17 missions); terrestrial rocks (phosphorites, bauxites, shungites, oil shales, graphites, tufa;, epsomite, cryptohalite. Hydrothermal vent chimney material, stromatolites, and banded iron formations),