A NEBULAR ORIGIN OF CHLORAPATITE AND SILICATE GLASS IN THE GUIN (UNGR) IRON.Kodaikanal (IIE) iron meteorites.

KURAT G,; ZINNER ERNST,; VARELA, ME; DEMIDOVA,

Berna

Congreso; Meeting of the Meteoriticcal Society; 2006

Silicate inclusions in iron meteorites [e.g., 1] are believed to sample primitive (chondritic) as well as chemically fractionated parent bodies [2]. Inclusions in IIE irons have extreme fractiona-tions, which are commonly considered to be due to impact melting and mixing of feldspars and silica from the surface of a highly dif-ferentiated parent body [e.g., 3, 4]. Studies of IIE iron-like inclu-sions from the Guin (ungr) iron show that they record nebular rather than planetary fractionation processes.