New INAA analysis of a mantle-derived titanate mineral of the crichtonite series, with particular reference to the rare earth elements

Titanate minerals of the crichtonite series (AM21O38, A = Sr in crichtonite; M = Ti, Fe, Cr) reported from mantle peridotite xenoliths associated with kimberlites appear to be solid solutions of several named end-members (mostly Ba, Sr, K, Ca) that contain some REE. Electron microprobe, X-ray and in...

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Bibliographic Details
Published in:The American mineralogist 1985-04, Vol.70 (3-4), p.414-418
Main Authors: Jones, A. P, Ekambaram, V
Format: Article
Language:English
Subjects:
chemical analysis
chemical composition
composition
crichtonite
geochemistry
igneous rocks
inclusions
kimberlite
mantle
metals
methods
minerals
neutron activation analysis
peridotites
plutonic rocks
rare earths
rock, sediment, soil
solid solution
titanate
ultramafic composition
ultramafics
xenoliths
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Summary:Titanate minerals of the crichtonite series (AM21O38, A = Sr in crichtonite; M = Ti, Fe, Cr) reported from mantle peridotite xenoliths associated with kimberlites appear to be solid solutions of several named end-members (mostly Ba, Sr, K, Ca) that contain some REE. Electron microprobe, X-ray and instrumental neutron activation analyses are reported and discussed.
ISSN:0003-004X
1945-3027