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Subvolcanic rock

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Title: Subvolcanic rock  
Author: World Heritage Encyclopedia
Language: English
Subject: Igneous rock, Igneous rocks, St. Mary's Islands, Iddingsite, Intermediate composition
Collection: Igneous Petrology, Subvolcanic Rocks, Volcanology
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Subvolcanic rock

A subvolcanic rock, also known as a hypabyssal rock, is an intrusive igneous rock that originates at medium to shallow depths within the crust, and has intermediate grain size and often porphyritic texture between that of volcanic and plutonic rocks. Subvolcanic rocks include diabase (also known as dolerite) and porphyry.

See also

References

  • Igneous rock types - Australian Museum
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