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The heat is derived from initial impacts during Earth's accretionary past, from pressure of overlying material, and from the decay of radioactive material. Keeping it hot has mainly been a function of the radioactive decay and the insulation created by the size of the planet.
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∙ 15y ago
Wiki User
∙ 13y agoThe geothermal gradient is expressed as an increase in temperature with a corresponding increase in depth from the surface. Magma formation occurs at depth and slowly lowers in temperature as it rises to the surface. The source of the heat that relates to the geothermal gradient is due to radioactive decay, gravitational friction, and remnant heat from Earth's formation.
Wiki User
∙ 12y agoI wish I Knew the answer to this ? but i have a assignment that's due Wednesday and need to know Can someone Plz answer it ASAP
Thx Alot
Wiki User
∙ 14y agoI belive that Nuclear reactions in the earth's core heats magma.
Some belive that friction of iron in the earth's core due to rotations of earth.
Wiki User
∙ 11y agoAfter lava comes to the surface of the Earth is cools off, thus does not stay hot. While still in the Earth it is kept hot by the Earth's core.
Wiki User
∙ 12y agoRadiation keeps magma hot of course
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Is the center of the Earth made of hot molten material?
The innermost layer, the inner core, is very hot but not molten.
Why is the center of the earth not molten?
The pressure from the outer core, mantle, and crust sqeeze it to a solid although is is fiery hot.
How hot is the suns core tempurture?
27 MILLION degrees Farenheight way way way hotter than Venus's surface and Earth's CORE!
Why are planet cores so hot?
Planets are, in general, by-products of the birth of a star. As the stars form from accretion, so do the planets. Heavy elements like iron and even the heaviest elements at the upper end of the periodic table can become part of a planet's core. The core of a planet usually exists of these heavy elements. The pressure and isolation from the upper layers of the planet cause the core to stay molten and hot. Though not all planetary cores are hot, some are, and we might look at Earth to figure out how a planet's core gets hot. There are three things that contribute to the Earth's core temperature. The original formation of the Earth by accretion created heat when gravity compressed the material. We also see that bombardment of the planet by asteroids and other matter which created tremendous heat which has not completely cooled. In the case of the earth, the major impact that formed the moon would have re-melted the surface if it had begun to solidify at that point. The other sources of heat are the friction/movement of the various parts and substances. This can be due to crustal shift or the strong gravity of a nearby mass periodically compressing the planet. The is also the fact that the primary source of Earth's core heat (90+%) is from the radioactive decay of radioactive materials in the core. A planet's core is hot because of residual heat of formation, or from friction generated by repeated compression by a nearby massive body, or from impacts of other bodies, or from the natural shifts of crustal material, or from the decay of radioactive materials within it.
What is under hell?
Under neathe Hell is nothing because Hell is in the core\middle of the earth. S o in Hell it is very hot:(
What layer of earth is made up of hot molten rocks?
The outer core is the only molten layer of the Earth. == ==
Is the center of the Earth made of hot molten material?
The innermost layer, the inner core, is very hot but not molten.
What is the hot molten matter which comes out of the earth's core?
magma
How does radioactivity affect the planet?
Among other things, it keeps the core hot (and molten).
What layer in the earth is composed of hot molten liquid?
the outer core
Is Earth's core too hot to touch?
Earth's core is an essential part of it, it also has molten parts or components. So, yes, it's hot. :)
Why would the earth lose it's gravity if it's core cooled?
The earth's core contains radioactive elements and as these decay they release heat. This heat keeps the earth's core hot.
Was the earth hot and molten during formation?
For sure. It was almost like a molten lava planet. It was so hot, that heavier elements like iron sunk to to core of the Earth.
What is key to explaining plate tectonics?
Understanding that the core of the Earth is still hot and semi-molten.
Is Earth's outer core a hot liquid?
Yes, to the best of our understanding it is made of molten Iron.
Earth's solid inner layer is surrounded by the hot molten metal of which layer?
outer core
What is the center of the earth?
The center of the earth is the core. It is full of molten hot magma. It is generally pictured as red when seen in drawings.
