Classification of Meteors

CLASSIFICATION OF METEORS (3 Divisions, 7 Classes, 30 Sub classes) l. Stony a. Composition like Earth's crust b. Mostly silicates c. Tektites – glassy

2. Stony Irons a. Nickel, Iron, and Silicate minerals. b. 50-50 percent of Fe, Ni, and silicates

3. Irons a. Nickel and Iron b. Nearly 100% metal c. Approximately 5%-30% nickel and 70%-90% iron

4. Meteors named for the nearest Post Office or County a. 1973-1983: 5,000 meteorite fragments were found on Earth b. Antarctica ice fields 1. 1974: 663 found 2. 1979: 3,000 found c. Before 1,960 there was approx. 2,100 known meteorites d. Antarctica desert based on ppt. Only a few mm pp% annually 5. Once special type of meteorite a. Carbonaceous Chrondrites b. Has amino and fatty acids, and Ch20 (carbon and water) c. Sometimes referred to as the "true genesis rock"

Reference Dr. Marvin- Expert on meteorites