Download Internal Structure of the Earth

yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project

Document related concepts

Post-glacial rebound wikipedia , lookup

Basalt wikipedia , lookup

History of geomagnetism wikipedia , lookup

Spherical Earth wikipedia , lookup

Abyssal plain wikipedia , lookup

Geochemistry wikipedia , lookup

Nature wikipedia , lookup

History of geology wikipedia , lookup

Age of the Earth wikipedia , lookup

History of Earth wikipedia , lookup

Geology wikipedia , lookup

Future of Earth wikipedia , lookup

Earthscope wikipedia , lookup

Large igneous province wikipedia , lookup

Mantle plume wikipedia , lookup

Geophysics wikipedia , lookup

Plate tectonics wikipedia , lookup

Internal Structure of
the Earth
Internal Structure (cont.)
Crust – the outer, hardest layer of the
lithosphere; continental crust (mostly
granite, 2.7 g/cm³, 0-40 km) and
oceanic crust (basalt 3.0 g/cm³, 010km)
Lithosphere – crust and upper most,
solid, rigid portion of the mantle –
broken into pieces (0-100 km)
Internal Structure (cont.)
 Asthenosphere – partially molten rock in
the upper mantle; plastic consistency (100700km)
 Mohorovic Discontinuity (Moho) – the
boundary between the Earth’s crust and the
upper mantle -- averaging 8 kilometers
(5 miles) in depth under the oceans and 32
kilometers (20 miles) in depth under the
Internal Structure (cont.)
 Mantle – molten rock that has a much
stiffer consistency than the asthenosphere –
solid yet behaves like a liquid similar to a
glacier (3.3 – 5.5 g/cm³, 700- 2900km)
 Outer Core – liquid iron and nickel (9.9 –
12.1 g/cm³, 2900 to 4980km)
 Inner Core – solid, iron and nickel (12.713.0 g/cm³, 4980 to 6370km)
Internal Structure (cont.)
what some scientists think is going on…
Internal Structure (cont.)
~ The End ~
Extra - Extra
Come to me after school and sing…
The first verse of the Hokey Pokey and get a