A banded rock with strongly segregated mafic (dark) and felsic (light) bands. Mafic minerals predominate, hence the rock is termed a basic gneiss.
Scale: hammer shaft is 400 mm long.
Grid reference: 925 222
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A banded rock with strongly segregated mafic (dark) and felsic (light) bands. Mafic minerals predominate, hence the rock is termed a basic gneiss. Scale: hammer shaft is 400 mm long. Grid reference: 925 222
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This page is maintained by Roger Suthren
Last Modified: 21 October, 2008