Ash and lava fragments that cascade down the sides of a volcano eventually settle and lithify to form an extrusive igneous rock called

The appropriate response is Welded Tuff. It is a pyroclastic shake, of any root, that was adequately hot at the season of testimony to weld together. Entirely, if the stone contains scattered pea-sized pieces or fiamme in it, it is known as a welded lapilli-tuff.

Answergoogle earth; i believe this is the correct answer, plz check first;