flow banding


Also found in: Wikipedia.

flow banding

[′flō ‚band·iŋ]
(geology)
An igneous rock structure resulting from flowing of magmas or lavas and characterized by alternation of mineralogically unlike layers.
References in periodicals archive ?
At outcrop scale, the flow banding is one of the most distinct features of Topaz Mountain and appears to have provided pathways for vapor transport, with crystal-lined vugs concentrated along the flow banding.