Land
A volcano is composed of material that cooled and solidified at the surface, which makes it extrusive.
The main effect of extrusion is that the magma can cool much more quickly in the open air or under seawater, and there is little time for the growth of crystals.
Only the most violent volcanic eruptions feature a pyroclastic flow.
No, a lahar is not an example of a pluton. A lahar is a volcanic mudflow that occurs when volcanic debris mixes with water, flowing down the slopes of a volcano. A pluton, on the other hand, is an igneous intrusion formed underground by the solidification of magma.
continental volcanic arc. :)
A volcano is composed of material that cooled and solidified at the surface, which makes it extrusive.
No. A lava flow is considered an extrusive feature.
The main effect of extrusion is that the magma can cool much more quickly in the open air or under seawater, and there is little time for the growth of crystals.
The given options are not all intrusive igneous bodies. A batholith is an intrusive igneous body formed deep within the Earth's crust, while pyroclastic flows, lava flows, and lahars are volcanic hazards associated with volcanic eruptions.
Only the most violent volcanic eruptions feature a pyroclastic flow.
volcanic erupation
The main geological feature of the Galapagos Islands is volcanic activity. The islands were formed through a series of volcanic eruptions over millions of years, resulting in a unique landscape with diverse volcanic landforms such as craters, lava fields, and volcanic cones. This volcanic activity continues to shape the islands' geology today.
Parallel belts of folded mountains and volcanic mountains
A topographic map showing a hill with a volcanic crater would likely be labeled as a "volcanic cone" or "volcanic feature" on the map. These maps typically have contour lines that show the elevation changes of the land, allowing you to visualize the shape of the hill and the crater. Look for areas with concentric circles of contour lines, indicating the circular shape of the crater.
No, a lahar is not an example of a pluton. A lahar is a volcanic mudflow that occurs when volcanic debris mixes with water, flowing down the slopes of a volcano. A pluton, on the other hand, is an igneous intrusion formed underground by the solidification of magma.
Mountains, volcanic islands, and island arcs.
Volcanic islands, coral atolls