What's underneath the Earth?

Question

Thanks guys, but I meant what is below the Earth (not what's inside it). More along the line of livingnluv's answer.

Thanks!

Answer 1

the hot rocks and magma are IN the earth in the core not under it, i would think there's alot of space until some astronomical body, be it, planet or star or whatever is reached a long ways away from here, good question though.

Answer 2

As observations suggests that there is an increase by 1'c for every 35 mts. down earth. and hence the deepest parts of earth must be containing dense fluid in extreme hot conditons that the most hardest metals must have melted.

volcanos are weaker parts of the earth where the lava force themselves out under extreme pressure. the magma and lava are illustration that the deepest parts of earth are extremly hot consiting of anything and everything in a fluid state called magma.the magma are of two types, the inner core and the outer core.

Answer 3

The interior of the Earth, like that of the other terrestrial planets, is chemically divided into layers. The Earth has an outer silicate solid crust, a highly viscous mantle, a liquid outer core that is much less viscous than the mantle, and a solid inner core.

The geologic component layers of the Earth are at the following depths below the surface:

Depth Layer Density
g/cm3
Kilometres Miles
0–60 0–37 Lithosphere (locally varies between 5 and 200 km)
0–35 0–22 ... Crust (locally varies between 5 and 70 km) 2.2–2.9
35–60 22–37 ... Uppermost part of mantle 3.4–4.4
35–2890 22–1790 Mantle 3.4–5.6
100–700 62–435 ... Asthenosphere
2890–5100 1790–3160 Outer core 9.9–12.2
5100–6378 3160–3954 Inner core 12.8–13.1

The internal heat of the planet is most likely produced by the radioactive decay of potassium-40, uranium-238 and thorium-232 isotopes. All three have half-life decay periods of more than a billion years. At the center of the planet, the temperature may be up to 7,000 K and the pressure could reach 360 GPa. A portion of the core's thermal energy is transported toward the crust by Mantle plumes; a form of convection consisting of upwellings of higher-temperature rock. These plumes can produce hotspots and flood basalts.


Tectonic plates
Main article: Plate tectonics

A map pointing out the Earth's major plates.According to plate tectonics theory currently accepted by the vast majority of scientists working in this area, the outermost part of the Earth's interior is made up of two layers: the lithosphere comprising the crust, and the solidified uppermost part of the mantle. Below the lithosphere lies the asthenosphere, which comprises the inner part of the mantle. The asthenosphere behaves like a superheated and extremely viscous liquid.

The lithosphere essentially floats on the asthenosphere and is broken up into what are called tectonic plates. These plates move in relation to one another at one of three types of plate boundaries: convergent, divergent, and transform. Earthquakes, volcanic activity, mountain-building, and oceanic trench formation occur along plate boundaries.

The main plates are:

Plate name Area Covering
106 km² 106 mi²
African Plate 61.3 23.7 Africa
Antarctic Plate 60.9 23.5 Antarctica
Australian Plate 47.2 18.2 Australia
Eurasian Plate 67.8 26.2 Asia and Europe
North American Plate 75.9 29.3 North America and north-east Siberia
South American Plate 43.6 16.8 South America
Pacific Plate 103.3 39.9 Pacific Ocean

Notable minor plates include the Indian Plate, the Arabian Plate, the Caribbean Plate, the Nazca Plate and the Scotia Plate. The Australian Plate actually fused with Indian Plate between 50 and 55 million years ago. The fastest-moving plates are the oceanic plates, with the Cocos Plate advancing at a rate of 88 mm/yr (3.5 in/yr) and the Pacific Plate moving 80 mm/yr (3.1 in/yr). At the other extreme, the slowest-moving plate is the Eurasian Plate, progressing at a rate of 7 mm/yr (0.3 in/yr).

Answer 4

There is no real underneath as far as planet goes.

Eart made of the crust which is the top most layer of the planet and beneath that layer is the mantle which is a layer of magma and beneath that is the core which is in the center of the Earth sphere and made of 2 parts, the liquid metal outer core and the solid metal inner core.

Answer 5

The Earth is supported on the back of 4 elephants. The elephants have their feet on a giant turtle. That turtle, in turn, is resting on the back of another turtle. After that, it's turtles all the way down.

Answer 6

If you are standing somewhere in the U.S., then what is "underneath" the earth is an Australian wondering what is underneath. When the Australian asks me the same question, I will answer that it is you.

Answer 7

core of the earth or south pole

Answer 8

Great big strong dude, holding it on his shoulders. What I can't figure out is what he's standing on! :)

Answer 9

Red hot Magma. Or hell if your religious.

Answer 10

since the earth 'floats' in space, i'm guessing space???????