A NEBULAR ORIGIN OF CHLORAPATITE AND SILICATE GLASS IN THE GUIN (UNGR) IRON

KURAT GERO,; ZINNER ERNST,; MARIA EUGENIA VARELA; DEMIDOVA,

METEORITICS & PLANETARY SCIENCE

Año: 2006 vol. 41 p. 102 - 102

1086-9379

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 fractionations, which are commonly considered to be due to impact melting and mixing of feldspars and silica from the surface of a highly differentiated parent body [e.g., 3, 4]. Studies of IIE iron-like inclusions from the Guin (ungr) iron show that they record nebular rather than planetary fractionation processes.