Definition of Volcanic rocks. Meaning of Volcanic rocks. Synonyms of Volcanic rocks

Here you will find one or more explanations in English for the word Volcanic rocks. Also in the bottom left of the page several parts of wikipedia pages related to the word Volcanic rocks and, of course, Volcanic rocks synonyms and on the right images related to the word Volcanic rocks.

Definition of Volcanic rocks

Volcanic rocks
Volcanic Vol*can"ic, a. [Cf. F. volcanique, It. vulcanico.] 1. Of or pertaining to a volcano or volcanoes; as, volcanic heat. 2. Produced by a volcano, or, more generally, by igneous agencies; as, volcanic tufa. 3. Changed or affected by the heat of a volcano. Volcanic bomb, a mass ejected from a volcano, often of molten lava having a rounded form. Volcanic cone, a hill, conical in form, built up of cinders, tufa, or lava, during volcanic eruptions. Volcanic foci, the subterranean centers of volcanic action; the points beneath volcanoes where the causes producing volcanic phenomena are most active. Volcanic glass, the vitreous form of lava, produced by sudden cooling; obsidian. See Obsidian. Volcanic mud, fetid, sulphurous mud discharged by a volcano. Volcanic rocks, rocks which have been produced from the discharges of volcanic matter, as the various kinds of basalt, trachyte, scoria, obsidian, etc., whether compact, scoriaceous, or vitreous.

Meaning of Volcanic rocks from wikipedia

- Volcanic rocks (often shortened to volcanics in scientific contexts) are rocks formed from lava erupted from a volcano. Like all rock types, the concept...
- hypabyssal rocks and they are usually much finer-grained, often resembling volcanic rock. Hypabyssal rocks are less common than plutonic or volcanic rocks and...
- felsic volcanic rocks are felsic volcanic rocks that were formed in the Archean Eon (4 to 2.5 billion years ago). The term "felsic" means that the rocks have...
- andesite – Volcanic rock that is intermediate in composition between basalt and andesite Basaltic trachyandesite – Naming system for volcanic rocksPages displaying...
- Tuff is a type of rock made of volcanic ash ejected from a vent during a volcanic eruption. Following ejection and deposition, the ash is lithified into...
- consists of igneous rocks (plutonic rocks overlain by volcanic rocks) that were gradually covered by layers of sedimentary rocks. The igneous part of...
- Mountain, a local peak that is composed of volcanic rocks from the field. The area also contains the Guffey volcanic eruption center. McIntosh, William C.;...
- Volcanic rocks, mostly of rhyolite composition, in Ghareh Dash, Azerbaijan. Volcanic rocks ****ociated with Kushk Series in the Bafq area. Volcanic rocks...
- presence of dense volcanic rocks beneath the arc. Inactive arcs are a chain of islands which contains older volcanic and volcaniclastic rocks. The curved shape...
- volcanic or volcanic derived (e.g., volcano-sedimentary) rocks, and the deposits are coeval and coincident with the formation of said volcanic rocks....