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Volcanic rock

Volcanic rocks (often shortened to volcanics in scientific contexts) are rocks formed from lava erupted from a volcano. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and metamorphic rocks and constitute an important element of some sediments and sedimentary rocks.

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Overview

Characteristics

Naming

Composition of volcanic rocks

Mechanical behaviour of volcanic rocks

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Map overview Semantic statistics

Volcanic rock

Nodes103
Edges102
Triples65
Avg. degree1.98
Density0.019417
Components1

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Volcanic rock

Top relations

related to Setting and size · 13
Volcanic rock → Ash, Earth's, Fine, Fragmented, Lapilli, Large, Lava, Rock, Tephra, The, They, Volcanic, When
related to Chemistry · 9
Volcanic rock → Additional, K2O, Most, Na2O, Some, TAS, The, These, Ultramafic
related to Mineralogy · 9
Volcanic rock → Bowen's, Diamonds, Differentiation, Earth, Most, Occasionally, SiO2, Thus, While
related to Naming · 7
Volcanic rock → Basalt, Examples, Intermediate, Pyroclastic, Rhyolite, They, Volcanic
related to Mechanical behaviour of volcanic rocks · 6
Volcanic rock → As, Brittle, For, The, Understanding, Young's
related to Texture · 5
Volcanic rock → Phenocrysts, Pumice, Rhomb, They, Volcanic
related to Composition of volcanic rocks · 4
Volcanic rock → Allowed, If, The, When

Important terminology Word statistics

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Important terminology

volcanic rocks rock lava often silica may common minerals phenocrysts crystals surface citation needed content matrix composition basalt large form

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
basaltinstance ofit forms coherent volcanic rocks0.80text
andesiteinstance ofit forms coherent volcanic rocks0.80text
and rhyoliteinstance ofit forms coherent volcanic rocks0.80text
aegirine or sodic amphibole in addition to in feldspar.The chemistry of volcanic rocks is dependent on two thingsinstance ofso that some of the alkali oxides must be present in sodic pyroxenes0.80text
phylloinstance ofmore evolved volcanic rocks tend to be richer in minerals with a higher amount of silica0.80text
tectosilicates including the feldsparsinstance ofmore evolved volcanic rocks tend to be richer in minerals with a higher amount of silica0.80text
quartz polymorphsinstance ofmore evolved volcanic rocks tend to be richer in minerals with a higher amount of silica0.80text
muscoviteinstance ofmore evolved volcanic rocks tend to be richer in minerals with a higher amount of silica0.80text
obsidianinstance ofvitreous rocks0.80text
tachylyteinstance ofvitreous rocks0.80text
pitchstoneinstance ofvitreous rocks0.80text
the partitioning of the void spaceinstance ofattributes0.80text

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