flow banding


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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.
These fractures appear to be the result of flow banding and, although this unit has been included in the Cretaceous Lancones Formation, the authors believe that the well preserved features could indicate a younger age.