National Geographic : 1952 Jan
© National Geographic Society 14 Kodachromes by Richard II.Stewart Dr. Meen Drags a 13-pound Magnet to Pick up Ore Particles and (Left) Examines Them under aMagnifying Glass Exploding meteors, born in outer space, sometimes spatter earthly targets with shrapnel-like fragments. Such a shower fellaround Meteor Crater, Arizona. Chubb Crater's explorers searched in vain for similar specimens. However, they did obtain magnetite particles of earthly origin. Flakes ofthis iron oxide were common in the rocks. A striking feature of the region was the virtual absence of soil.