Tuff, Volcanic Ash, Igneous Rock & Pyroclastic Material

Tuff, a relatively soft, porous rock that is usually formed by the compaction and cementation of volcanic ash or dust. (The Italian term tufa is sometimes restricted to the soft, porous, sedimentary rock formed by the chemical deposition of calcite, or calcium carbonate, or silica from water as

Welded Tuff In Pyroclastic Flows

Igneous Rocks

What am I looking at? Is this a layer of ash and some old lava

What is pyroclastic material? - MiMaEd

Igneous rock tuff hi-res stock photography and images - Alamy

Geology Fundamentals: Identifying Igneous Rocks in the Field

Tuff - Wikipedia

ALEX STREKEISEN

Pyroclastic rocks hi-res stock photography and images - Alamy

Pyroclastic Textures

Classification of Pyroclastic Rocks — Steemit

The Textures of Igneous Rocks - Geology In

This particular volcanic igneous rock, the Bishop Tuff, is composed of volcanic ash and fragments of pumice that were ejected

tuff - rhyolitic tuff with pumice clasts - a classic ignimbrite or pumice-dominated pyroclastic deposit - teaching hand specimen - Geological Specimen