INVESTIGADORES
VARELA Maria Eugenia
artículos
Título:
Trace element abundance in St Aubin (UNGR Iron) Giant chromite and associated phases
Autor/es:
KURAT GERO,; ZINNER ERNST,; MARIA EUGENIA VARELA
Revista:
METEORITICS & PLANETARY SCIENCE
Editorial:
METEORITICAL SOC
Referencias:
Año: 2005 vol. 40 p. 88 - 89
ISSN:
1086-9379
Resumen:
Chromite crystals of up to 3 cm in size were recently described from the fine octahedrite St. Aubin [1]. The crystals are euhedral exhibiting triangular and hexagonal cross sections and are incompletely covered by schreibersite, troilite and swathing kamacite. They are accompanied by schreibersite, troilite, hibbingite and euhedral Fe-phosphate (sarcopside or graftonite). We have analyzed the non-metallic phases for their major, minor and trace element contents with an EMP and an IMS-3f ion probe, which was also utilized to search for extinct 53Mn in the Fe-phosphates ? all following routine procedures.
