Talk:Foliation (geology)
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When editing this, be careful to remember that a foliation is more than just mica orientation and gneissic banding. It is also rarely planar on any scale, and especially in shears, it is highly misleading to simply imply it is formed 90 degrees to stress. in mylonites and extremely stretched rocks, a foliation may even be parallel with the principal stress. Cheers, Rolinator 07:41, 23 December 2005 (UTC)