Walter Alvarez
Walter Alvarez
American geologist who, with his father, Louis, discovered evidence that a large impact was the most likely cause of the mass extinction of dinosaurs. Alvarez analyzed samples from the Italian mountains that were deposited at the boundary between the Cretaceous and Triassic periods (known to geologists as the "KT boundary") and noticed high levels of iridium, commonly found in meteorites. This led to his discovery that a large meteor or a small asteroid impact caused the dinosaurs' extinction.
More From encyclopedia.com
Bruno Walter , The celebrated conductor and composer Bruno Walter was born in Berlin on September 15, 1876, and died in Los Angeles on February 17, 1962.
Born Germa… Cretaceous-tertiary Boundary , Cretaceous-Tertiary boundary
K/T boundary event
K/T boundary event The impact of an asteroid, about 10–11 km in diameter, that struck the Earth about… Walter Industries Inc , Walter Industries, Inc.
4211 West Boy Scout Boulevard
Tampa, Florida 33607-2551
U.S.A.
Telephone: (813) 871-4811
Fax: (813) 871-4399
Web site: http:/… Walter of Canterbury , Canterbury, Walter of (fl.1319–27). Master-mason. He rebuilt the outer curtain-wall at the Tower of London beside the Traitors' Gate (1324–5), and ab… Little Walter , Walter, Little
Harmonica player
The most commercially successful Chicago blues performer of the postwar era, harmonica stylist Little Walter Jacobs c… Walter Horatio Pater , Walter Horatio Pater
The English author Walter Horatio Pater (1839-1894) was the most influential figure in the Esthetic movement of the late 19th ce…
You Might Also Like
NEARBY TERMS
Walter Alvarez