A fixed volcanic hot spot in the Earth's mantle tends to produce a chain of volcanic islands on a moving lithospheric plate.
Volcanic hot spots are areas of intense volcanic activity that are believed to be caused by a column of hot molten rock, known as a mantle plume, rising from deep within the Earth's mantle. These plumes are thought to be stationary, while the lithospheric plates move over them due to the process of plate tectonics.
As a lithospheric plate moves over a hot spot, the plume of hot material beneath it creates a volcano at the surface. The volcano forms due to the upward movement of molten rock, or magma, from the mantle to the Earth's surface. Over time, as the lithospheric plate continues to move, the volcano becomes dormant and a new volcano forms in its place.
This process results in a chain of volcanic islands, known as a volcanic island arc, extending in the direction of plate motion. Examples of volcanic island arcs include the Hawaiian Islands, the Aleutian Islands, and the Caribbean Islands.
The formation of volcanic islands in a fixed location over time is due to the fact that the hot spot remains stationary beneath the lithospheric plate, while the plate moves in a different direction. As a result, a trail of volcanic islands is formed, with older islands becoming more eroded and submerged, while new islands are formed closer to the hot spot.
In conclusion, a fixed volcanic hot spot in the Earth's mantle tends to produce a chain of volcanic islands on a moving lithospheric plate. This phenomenon is a result of the continuous movement of the lithospheric plate over the stationary hot spot, leading to the formation of a volcanic island arc.
To learn more about Earth's mantle click here:
https://brainly.com/question/10758534#
#SPJ11
these large red areas of igneous rock were formed by melting during . (hint: note this is along the coast of california and a little inland in nevada)
These large red areas of igneous rock were formed by melting during volcanic activity.
Magma intrusion and subsequent solidification deep within the Earth's crust are what created these sizable red areas of igneous rock, or batholiths. The Sierra Nevada batholiths are particularly notable features in Nevada and along the coast of California. The subduction of oceanic plates beneath the continental crust and the intense tectonic activity that resulted produced these batholiths.
Intense heat and pressure produced by the oceanic plate's descent cause the mantle to melt and produce magma. After rising and penetrating the crust above, the magma cools and solidifies over millions of years to create the massive igneous rock formations that are visible today. The geological history and processes that shaped the area can be better understood thanks to these batholiths.
To know more about igneous rock here
brainly.com/question/2500550
#SPJ4
The complete question is "These large red areas of igneous rock were formed by melting during which geological process? (Hint: Note this is along the coast of California and a little inland in Nevada)"
