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 …

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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.

May 17, 2025 · Tuff means something is cool, dope, or exciting. Something that’s tuff is something that’s considered cool, typically in a masculine sense. For example, if a clip of an NBA player doing a 360 …

Dec 11, 2016 · The meaning of TUFF is a rock composed of the finer kinds of volcanic detritus usually fused together by heat.

Mar 29, 2025 · What Does ‘Tuff’ Mean? ‘Tuff’ is a slang term derived primarily from the American vernacular, often used to express toughness, resilience, or strength. The word is frequently …

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 …

May 13, 2019 · Tuff as a Preservation Medium for Fossils: Tuff rock can play a crucial role in the preservation of fossils due to its rapid burial and protective properties. When volcanic ash and debris …

Jan 16, 2024 · Tuff is a pyroclastic rock with more than 75% volcanic ash and can be of basaltic, rhyolitic, dacitic, andesitic, and other compositions.

The trilobite fossils were trapped between layers of petrified ash in sandstone, the product of old volcanic eruptions that settled on the sea floor and formed a green layer called a tuff.