Description
When describing a foliation it is useful to note
- the mineralogy of the folia; this can provide information on the conditions of formation
- the mineralogy in intrafolial areas
- foliation spacing
- any porphyroblasts or minerals associated with the foliation and whether they overprint it or are cut by it
- whether it is planar, undulose, vague or well developed
- its orientation in space, as strike and dip, or dip and dip direction
- its relationship to other foliations, to bedding and any folding
- measure intersection lineations
Following such a methodology allows eventual correlations in style, metamorphic grade, and intensity throughout a region, relationship to faults, shears, structures and mineral assemblages.
Read more about this topic: Foliation (geology)
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