Subterranean geological structure formed by volcanic eruption
Volcanic pipes or volcanic conduits are subterranean geological structures formed by the violent, supersonic eruption of deep-origin volcanoes. They are considered to be a type of diatreme. Volcanic pipes are composed of a deep, narrow cone of solidified magma (described as "carrot-shaped"), and are usually largely composed of one of two characteristic rock types — kimberlite or lamproite. These rocks reflect the composition of the volcanoes' deep magma sources, where the Earth is rich in magnesium. They are well known as the primary source of diamonds, and are mined for this purpose. Volcanic pipes are relatively rare by this definition based on minerals and depth of the magma source, but on the other hand volcanic diatremes are common, indeed the second commonest form of volcanic extrusion (that is magma that reaches the surface).
Volcanic pipes or volcanic conduits are subterranean geological structures formed by the violent, supersonic eruption of deep-origin volcanoes. They are...
Look up Pipe, pipe, or pipes in Wiktionary, the free dictionary. Pipe(s), PIPE(S) or piping may refer to: Pipe (fluid conveyance), a hollow cylinder following...
A diatreme, sometimes known as a maar-diatreme volcano, is a volcanicpipe associated with a gaseous explosion. When magma rises up through a crack in...
annual production capacity of 10.4 million carats (2.08 t). Mir mine Volcanicpipe Barthelmy, David. "Amakinite Mineral Data". Retrieved 2006-12-31. "Meeting...
exploiting a volcanicpipe of lamproite, rather than the more usual kimberlite pipe; much earlier attempts to mine diamonds from a lamproite pipe in Arkansas...
volcanic lava Cryovolcano – Type of volcano that erupts volatiles such as water, ammonia or methane, instead of molten rock Diatreme – Volcanicpipe associated...
typically occupies the crest of an anticline or trough of a syncline Volcanicpipe or volcanic neck: tubular, roughly vertical body that may have been a feeder...
dioxide below the lake bottom, which seeps into the lake through a volcanicpipe. On 21 August 1986, Lake Nyos released a massive amount of carbon dioxide...
volcanicpipe. Sector collapses are one of the most hazardous volcanic events, often resulting in lateral blasts, landslides, and changes in volcanic...
crust of a planetary-mass object, such as Earth, that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface. On Earth...
November 2003 in celebration of its centenary. The mine is a carrot-shaped volcanicpipe and has a surface area of 32 hectares (79 acres). The mine rose to prominence...
Crater of Diamonds is part of a 100-million-year-old eroded volcanic formation (a volcanicpipe). The deeply sourced Kimberlite/Lamproite magma brought the...
Strohner Märchen (south of the Pulvermaar), volcanicpipe which has become a maar Papenkaule, a volcanic crater, and the associated eruption site of the...
and plunge 300 metres below it. On volcanic islands the sea can enter the caldera and the face of the volcanicpipe can form a steep coastline. The best-known...
Tuff forms from solidification of materials ejected during explosive volcanic eruption, such as rock, ash, and magma. The thickness and particle size...
His drilling crews accidentally tap into a volcanicpipe during a tyrannosaurus' visit, triggering a volcanic eruption that threatens to destroy the whole...
(hundreds to tens of million years ago), they were carried to the surface in volcanic eruptions and deposited in igneous rocks known as kimberlites and lamproites...
created during volcanic eruptions Maar – Low-relief volcanic crater Volcanicpipe – Subterranean geological structure formed by volcanic eruption Emeishan...
purchased full control of Arctic Canadian Diamond Company. The first volcanicpipe found in the Lac de Gras region was the Point Lake kimberlite, discovered...
region. It mostly consists of phonolite, which represents the former volcanicpipe. The surrounding softer rocks have been eroded over time by ice age...
of direct volcanic heat with lake waters An upper and lower thermal layer with differing CO2 saturations Proximity to areas with volcanic activity Investigations...
Whites Bay formed as a part of a volcanic eruption that occurred around 16 million years ago. A subvertical volcanicpipe is exposed on the cliffs to the...
pipe on which it is located. At 146 hectare in area at surface level, it ranks as the largest economically exploitable diamond-bearing volcanicpipe in...
the lower Carboniferous period. The Castle Rock is the remains of a volcanicpipe, which cut through the surrounding sedimentary rock before cooling to...