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rhyolite::noun | Spocien Dictionary
| Type | Words |
|---|---|
| Type of | igneous rock |
Examples of rhyolite
rhyolite
Late Variscan volcanic rocks occur in the Fichtelgebirge as layers of rhyolite.
From the en.wikipedia.org
The current explosive eruption appears to be at the explosive rhyolite-dacite end.
From the scoop.co.nz
I passed mountains of pink and orange rhyolite gashed by hot volcanic rivers.
From the guardian.co.uk
Another pink and green rhyolite porphyry occurs in Holder, Weston and Lyons.
From the en.wikipedia.org
Crystalline rocks with obsidian's composition include granite and rhyolite.
From the en.wikipedia.org
The new sulphide zone occurs between a thick acid porphyry unit and a fragmental rhyolite.
From the foxbusiness.com
The viscous rhyolite foam breaks down into tiny ash fragments which form the ash clouds.
From the sciencedaily.com
The rocks themselves are relatively dark and consist of rhyolite, andesite and breccias.
From the en.wikipedia.org
Alkali-rich rhyolite erupted in the second interval from the 19 myo Mount Belknap caldera.
From the en.wikipedia.org
- Very acid volcanic rock
- Rhyolite is an igneous, volcanic (extrusive) rock, of felsic (silica-rich) composition (typically > 69% SiO2 -- see the TAS classification). It may have any texture from glassy to aphanitic to porphyritic. ...
- Light-colored volcanic igneous rock that is the extrusive equivalent of granite.
- A type of highly viscous magma with high silica content; it is found as pumice (in airfall deposits or ignimbrites), lava or obsidian. Rhyolite is also the name given to the volcanic rock formed from rhyolitic magma.
- A type of rock that contains a lot of silica but not much iron. Includes rocks such as pumice. Often associated with volcanic caldera eruptions.
- Fine-grained extrusive igneous rock, commonly with phenocrysts of quartz and feldspar in a glassy groundmass.
- (geology): A dull, pink, streaky, igneous rock formed from minute glassy crystals of volcanic dust. In South Africa it is found only in the Lebombo Mountains, and is used for roads, concrete and insulation.
- A fine-grained igneous rock of the same composition as granite (quartz, feldspar and mica), but capable of being worked by flaking into tools. Characteristically, rhyolite has a glossy appearance and small inclusions of quartz and feldspar within the finer matrix.
- An extrusive igneous rock equivalent in composition to granite, in which the crystalline constituents are too small to be distinguished with the unaided eye.
