Satellite cone
Encyclopedia
A parasitic cone is the cone-shaped accumulation of volcanic material not part of the central vent of a volcano
. One forms by eruptions from fractures on the flank of the volcano. These fractures occur because of 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.
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
.
Another great example of a parasitic cone is Shastina
, that looks like it is growing off the side of Mount Shasta
.
Volcano
2. Bedrock3. Conduit 4. Base5. Sill6. Dike7. Layers of ash emitted by the volcano8. Flank| 9. Layers of lava emitted by the volcano10. Throat11. Parasitic cone12. Lava flow13. Vent14. Crater15...
. One forms by eruptions from fractures on the flank of the volcano. These fractures occur because of 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.
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
Mount Mazama
Mount Mazama is a destroyed stratovolcano in the Oregon part of the Cascade Volcanic Arc and the Cascade Range. The volcano's collapsed caldera holds Crater Lake, and the entire mountain is located within Crater Lake National Park....
in Crater Lake National Park
Crater Lake National Park
Crater Lake National Park is a United States National Park located in southern Oregon. Established in 1902, Crater Lake National Park is the sixth oldest national park in the United States and the only one in the state of Oregon...
, Oregon
Oregon
Oregon is a state in the Pacific Northwest region of the United States. It is located on the Pacific coast, with Washington to the north, California to the south, Nevada on the southeast and Idaho to the east. The Columbia and Snake rivers delineate much of Oregon's northern and eastern...
, USA
United States
The United States of America is a federal constitutional republic comprising fifty states and a federal district...
.
Another great example of a parasitic cone is Shastina
Shastina
Shastina is the highest satellite cone of Mount Shasta, and one of four overlapping volcanic cones which together form the most voluminous stratovolcano in the Cascade Range. At , Shastina is taller than Mount Adams and would rank as the third highest volcano in the Cascades behind Mount Rainier...
, that looks like it is growing off the side of Mount Shasta
Mount Shasta
Mount Shasta is located at the southern end of the Cascade Range in Siskiyou County, California and at is the second highest peak in the Cascades and the fifth highest in California...
.