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Is it true or false volcanism occurs on planets whose interiors have completely cooled?
Volcanism can only occur on planets with a liquid mantle.
The island of Hawaii experiences volcanism because it is located above the Mid-Pacific?
False! The island of Hawaii experiences volcanism because it is located above a hotspot in the Earth's mantle.
What are hotspots?
Hotspots are portions of the Earth's surface that experience significant volcanism thought to be due to mantle plumes. They are normally located at a distance from plate boundaries where the majority of volcanism occurs.An example of a hotspot would be that underlying Hawaii and is responsible for the volcanism there and the creation of the Hawaiian island chain.
Intraplate volcanism may be associated with what formation?
Intraplate volcanism may be associated with hotspots. These are areas where magma rises from deep within the mantle to the surface of the Earth, independent of tectonic plate boundaries. The Hawaiian Islands are a famous example of intraplate volcanism caused by a hotspot.
Are the Galapagos islands formed by volcanoes?
Yes - this volcanism is related to the presence of an underlying mantle plume that has created a hot spot in the crust.
How did the Hawaiian chain island form?
The Hawaiian Island chain formed from a mantle plume and moving plates. The rising mantle plume causes crustal material to melt at depth, which results in volcanism and finally in the formation of a volcanic island. Since the Pacific Plate is in continuous (although slow) movement, the same mantle plume will cause volcanism subsequently in different places and this is expressed at the surface as a chain of volcanoes or volcanic islands.
Does the mantel contain soil?
No the answer is false the mantle does not contain soil
Does the core contain the lower mantle?
No. The outer and inner cores are separate from the mantle.
Does the earth's mantle contain peridotite?
Yes it does.
What is the meaning volcanism?
Volcanism refers to the process through which magma, gas, and ash are expelled through the Earth's surface via volcanic eruptions. This process occurs due to the movement of tectonic plates or the presence of hotspots in the Earth's mantle, resulting in the formation of volcanoes. Volcanism plays a crucial role in shaping the Earth's surface and is responsible for the creation of new landforms.
What is a hot spot in relation to volcanoes?
This is a point in the Earth's crust where hot upwellijng mantle material causes significant magma formation and melting to occur within the crust and upper mantle. This in turn causes hotspot volcanism at the surface.
Divergent volcanism generally found at?
Divergent volcanism is generally found at mid-ocean ridges, where tectonic plates are moving apart. This movement allows magma from the mantle to rise to the surface, resulting in the formation of underwater volcanoes and new oceanic crust.
