Chemical classification of iron meteorites. X - Multielement studies of 43 irons, resolution of group IIIE from IIIAB, and evaluation of CU as a taxonomic parameter

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Chemical Composition, Copper, Iron Meteorites, Meteoritic Composition, Classifications, Gallium, Germanium, Iridium, Neutron Activation Analysis, Nickel, Meteorites, Iron Meteorites, Chemistry, Classification, Parameters, Structure, Composition, Catalog, Samples, Meteorite, Descriptions, Concentrations, Elements, Pallasites, Copper, Analysis, Cachiyuyal, Armanty, Garden Head, Algoma, Hassi-Jekna, Magnesia, Mesosiderites, Horse Creek, Mount Egerton, Bellsbank, Comparisons

Scientific paper

The authors report structural and compositional data leading to the classification of 41 iron meteorites, increasing the number of classified independent iron meteorites to 576. They also obtained data on a new metal-rich mesosiderite and on two new iron masses that are paired with previously studied irons. The authors also report concentrations of Cr, Co, Cu, As, Sb, W, Re and Au in each of these 44 meteorites. They determined 7 of these elements (all except Sb) in 30 previously studied ungrouped or unusual irons, and obtained Cu data on 104 irons, 21 pallasites, and 3 meteorite phases previously studied by E. Scott. They show that Cu possesses characteristics well suited to a taxonomic element: a siderophile nature, a large range among all irons, and a low range within magmatic groups.

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