NGT39-4-04
1959
Distribution of Ba and Sr in microcline in sections across a granite pegmatite band in gneiss
39
4
343-349

Spectrochemical determinations of Ba and Sr in microcline samples taken along 5 sections across a granite pegmatite band in plagioclase gneiss exhibit highly variable concentrations. Particularly low concentrations appear to occur within definite parts, which have apparently formed at later stages than the rest of the pegmatite.

A contour map showing roughly the Ba distribution within the examined part of the pegmatite band has been tentatively constructed.