Texture and anisotropy of polycrystals vol:273-2 pages:601-606
Measuring mica (001) preferred orientation is insufficient when a determination of the complete, three-dimensional orientation distribution of phyllosilicates in a phyllosilicate fabric is aimed at. The missing information concerns a possible crystallographically controlled orientation anisotropy within the basal planes of the phyllosilicates. Such an anisotropy may be indicative of contributions of crystalplastic deformation or differential solution-precipitation mechanisms in the overall development of a phyllosilicate preferred orientation. Measuring mica (110) preferred orientation might provide the missing information. The combined knowledge of the preferred orientation of both basal and prism planes of phyllosilicates permits to portray the three-dimensional orientation distribution of the phyllosilicates in a phyllosilicate fabric.