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  2. Volcanic and igneous plumbing systems - Wikipedia

    en.wikipedia.org/wiki/Volcanic_and_igneous...

    Schematic sketch of the volcanic and igneous plumbing systems (after Burchardt, 2018). [1] [2] Volcanic and igneous plumbing systems (VIPS) consist of interconnected magma channels and chambers through which magma flows and is stored within Earth's crust. [1] Volcanic plumbing systems can be found in all active tectonic settings, such as mid ...

  3. Magma chamber - Wikipedia

    en.wikipedia.org/wiki/Magma_chamber

    Magma chamber. A magma chamber is a large pool of liquid rock beneath the surface of the Earth. The molten rock, or magma, in such a chamber is less dense than the surrounding country rock, which produces buoyant forces on the magma that tend to drive it upwards. [1] If the magma finds a path to the surface, then the result will be a volcanic ...

  4. Magma - Wikipedia

    en.wikipedia.org/wiki/Magma

    Magma (sometimes colloquially but incorrectly referred to as lava by laypeople) is found beneath the surface of the Earth, and evidence of magmatism has also been discovered on other terrestrial planets and some natural satellites. [3] Besides molten rock, magma may also contain suspended crystals and gas bubbles.

  5. Sill (geology) - Wikipedia

    en.wikipedia.org/wiki/Sill_(geology)

    Sill (geology) Illustration showing the difference between a dike and a sill. In geology, a sill is a tabular sheet intrusion that has intruded between older layers of sedimentary rock, beds of volcanic lava or tuff, or along the direction of foliation in metamorphic rock. A sill is a concordant intrusive sheet, meaning that it does not cut ...

  6. Igneous rock - Wikipedia

    en.wikipedia.org/wiki/Igneous_rock

    Igneous rock ( igneous from Latin igneus 'fiery'), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rocks are formed through the cooling and solidification of magma or lava . The magma can be derived from partial melts of existing rocks in either a planet 's mantle or crust.

  7. Surtseyan eruption - Wikipedia

    en.wikipedia.org/wiki/Surtseyan_eruption

    Surtseyan eruption. A Surtseyan eruption is an explosive style of volcanic eruption that takes place in shallow seas or lakes when rapidly rising and fragmenting hot magma interacts explosively with water and with water-steam- tephra slurries. The eruption style is named after an eruption off the southern coast of Iceland in 1963 that caused ...

  8. Large igneous province - Wikipedia

    en.wikipedia.org/wiki/Large_igneous_province

    A large igneous province (LIP) is an extremely large accumulation of igneous rocks, including intrusive (sills, dikes) and extrusive (lava flows, tephra deposits), arising when magma travels through the crust towards the surface.

  9. Dike (geology) - Wikipedia

    en.wikipedia.org/wiki/Dike_(geology)

    Magma rising into the ring fracture produces a ring dike. Good examples of ring dikes and cone sheets are found in the Ardnamurchan peninsula of Scotland. Other special types. A feeder dike is a dike that acted as a conduit for magma moving from a magma chamber to a localized intrusion.

  10. Magmatism - Wikipedia

    en.wikipedia.org/wiki/Magmatism

    Not to be confused with Magnetism. Magmatism is the emplacement of magma within and at the surface of the outer layers of a terrestrial planet, which solidifies as igneous rocks. It does so through magmatic activity or igneous activity, the production, intrusion and extrusion of magma or lava. Volcanism is the surface expression of magmatism.

  11. Volcanic plug - Wikipedia

    en.wikipedia.org/wiki/Volcanic_plug

    A volcanic plug, also called a volcanic neck or lava neck, is a volcanic object created when magma hardens within a vent on an active volcano. When present, a plug can cause an extreme build-up of high gas pressure if rising volatile -charged magma is trapped beneath it, and this can sometimes lead to an explosive eruption.