title: Magnetic particles extracted from manganese nodules: suggested origin from stony and iron meteorites.
abstract: On the basis of x-ray diffraction and electron microprobe data, spherical and ellipsoidal particles extracted from manganese nodules were divided into three groups. Group 1 particles are believed to be derived from iron meteorites, and Group 11 particles from stony meteorites. Group III particles are believed to be volcanic in origin.
authors.forename: R B
authors.initials: RB
authors.lastname: Finkelman