Tuffs are further classified by their depositional environment, such as lacustrine tuff, subaerial tuff, or submarine tuff, or by the mechanism by which the ash was transported, such as fallout tuff or ash …

Some of the world’s largest deposits of vitric tuff are produced by eruptions through a large number of narrow fissures rather than from volcanic cones. In extensive deposits, tuff may vary greatly not only …

The meaning of TUFF is a rock composed of the finer kinds of volcanic detritus usually fused together by heat.

Tuff is only correct when used as a noun that references a certain type of rock. If you are writing about a specific commercial product that includes tuff as part of a proper name, this usage is also acceptable.

If the ejected material is compacted and cemented into a rock, that rock will be called "tuff." Tuff is usually thickest near the volcanic vent and decreases in thickness with distance from the volcano. …

May 17, 2025 · Tuff typically describes something that's cool or exciting, especially online, but it can mean other things, too. In this article, we'll explain those different meanings, go over how to use the …

Jan 25, 2013 · Tuff is a light volcanic rock made of compacted ash. Explore its formation, common types and uses in geology and construction.

Ancient tuffs are known by the fragmental character of their volcanic material, even though they have been altered to firm rock. The materials of which tuffs are composed are easily recognized as …

May 13, 2019 · Major minerals found in tuff include quartz, feldspar (both plagioclase and potassium feldspar), mica, volcanic glass, and various accessory minerals. The presence of phenocrysts, …

Jan 16, 2024 · Volcanic ash that forms tuff is deposited instantaneously on a geological time scale and on an extensive scale. It is, therefore, a useful stratigraphic marker.