Molybdenite in calcium-aluminum-rich inclusions in the Allende meteorite |
| |
Authors: | Louis H Fuchs Milton Blander |
| |
Institution: | Argonne National Laboratory, 9700 South Cass Avenue Argonne, Illinois 60439, U.S.A. |
| |
Abstract: | The first observations of molybdenite in a meteorite have been made in two CaAl-rich inclusions in the Allende chondrite. The mineral occurs as single individuals completely enclosed in high Ni metal (62–64.5 wt. % Ni). The association with refractories is consistent with thermodynamic calculations which predict that Mo is a high temperature condensate even when nucleation constraints are imposed on the formation of a metal phase. Kinetic factors (including nucleation constraints) appear to have played an important role in the formation of molybdenite and the associated sulfides, magnetite and high nickel metal. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |