- In geology, a foliation is a crude layering of rocks
produced under compression. The layering is approximately parallel to
the bisecting planes of folds, and often results in the rock splitting
because of the parallel orientation of the mineral layers. Mica and slate are good examples of foliation.
- In topology, a foliation is a decoration of a manifold in which the manifold is partitioned into sheets of some lower dimension,
and the sheets are locally parallel. More technically, the foliated
manifold is locally homeomorphic to a vector space decorated by
co-sets of a subspace.
AND PLANETARY SCIENCE