Hot Spot
hot spot
When a mantle plume reaches the surface, it can create a hotspot, leading to volcanic activity. This can result in the formation of volcanic islands, like the Hawaiian Islands. Mantle plumes are a source of heat and material that contribute to the formation of new crust and landmasses.
No, a plume and a hotspot are not the same thing. A plume is a column of hot rock that rises in the mantle, whereas a hotspot is a location on the Earth's surface where magma from the mantle comes up and creates a volcanic activity like a volcano. Hotspots can be associated with plumes, but they are not the same thing.
The Hawian island chain was created by a "hotspot" in the Earth's mantle. This in turn is thought to be caused by a mantle plume. This is an up welling of very hot material from deep within the mantle (possibly even the core mantle boundary). The mantle plume stays in the same place, however the lithospheric plates are moving above it. So the mantle plume causes volcanism to occur at the spot on the surface directly above it forming a volcano, however as that volcano is dragged away by the movement of the lithospheric plate it is no longer over the mantle hot spot and loses it's supply of magma and becomes extinct. Meanwhile a new volcano will form in the lithosphere that is currently over the hotspot.
The Canary hotspot is an area located just off of the northwestern coast of Africa within the Canary Islands. This is made up of a volcanic hotspot that has an underlying mantle plume that is considered to be quite deep under the earthâ??s surface.
Rift zone
A hot spot deep in the Earth's mantle creates a rising plume of magma that is even hotter than the regular magma of which the mantle is composed. When this plume of magma hits the crust, it breaks through and causes a volcano. The reason why we eventually wind up with a whole chain of volcanoes, rather than just one, is continental drift. The Earth's crust is moving, while the plume of magma is always directed at the same spot, so as the tectonic plate slowly drifts by, the plume will impact different parts of that plate.
The Hawaiian islands are the result of a hot spot beneath the Pacific Plate. Hot material rises from deep within the mantle and collects beneath the lithosphere. Some of it rises through the crust and erupts at the surface, forming volcanoes. Those volcanoes gradually build up into islands. As the plate moves over the hot spot the old volcanoes go extinct and new ones form.
lithosphere
Lithosphere.
lithoshpere
That would be the Lithosphere. :D