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・ Parasite load
・ Parasite Pig
・ Parasite Planet
・ Parasite single
・ Parasite!
・ Parasitellus
・ Parasitemia
・ Parasitengona
・ Parasites & Vectors
・ Parasites (band)
・ Parasites Like Us
・ Parasites Lost
・ Parasitic capacitance
・ Parasitic castration
・ Parasitic computing
Parasitic cone
・ Parasitic disease
・ Parasitic drag
・ Parasitic element (electrical networks)
・ Parasitic extraction
・ Parasitic gap
・ Parasitic jaeger
・ Parasitic life cycles
・ Parasitic load
・ Parasitic loss
・ Parasitic mass
・ Parasitic number
・ Parasitic nutrition
・ Parasitic oscillation
・ Parasitic People


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Parasitic cone : ウィキペディア英語版
Parasitic cone

A parasitic cone (also adventive cone or satellite cone) is the cone-shaped accumulation of volcanic material not part of the central vent of a volcano. It forms from eruptions from fractures on the flank of the volcano. These fractures occur because the flank of the volcano is unstable. Eventually, the fractures reach the magma chamber and generate eruptions called flank eruptions, which, in turn, produce a parasitic cone.〔(【引用サイトリンク】url=http://www.geology.sdsu.edu/how_volcanoes_work/Volcano_types.html )
A parasitic cone can also be formed from a dike or sill cutting up to the surface from the central magma chamber in an area different from the central vent.
An example of parasitic cone is Mount Scott, which is the "parasite" of Mount Mazama in Crater Lake National Park, Oregon, USA.
A peculiar example of multiple parasitic cones is Jeju Island in South Korea. Jeju features 368 "oreum" (; "mount"), which lie in a roughly lateral line on either side of the island's central dormant shield volcano Hallasan.
Another great example of a parasitic cone is Shastina, which appears to grow off the side of Mount Shasta.
==See also==

*flank crater

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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