Earth’s Interior Notes (textbook pg. 167)
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Earth’s Interior Notes (textbook pg. 167) Main Idea Details P1), Earth is Cooling losing heat over time outer layer (crust) is coolest temperature & pressure increase as move in towards center of earth P2) Crust Two types of crust: oceanic: 510 km (36 mi) of rock under oceans continental: 1570 km (1243 mi) of rock under land P3) Mantle 2900 km (of dense rock 83% of earth’s interior! P3) Lithosphere top,cool, rigid part of mantle + crust!
Transcript of Earth’s Interior Notes (textbook pg. 167)
Earth’s Interior Notes (textbook pg. 167)
Main Idea Details
P1), Earth is Cooling losing heat over time
outer layer (crust) is coolest
temperature & pressure increase as move in towardscenter of earth
P2) Crust Two types of crust:oceanic: 510 km (36 mi) of rock under oceans
continental: 1570 km (1243 mi) of rock under land
P3) Mantle 2900 km (of dense rock83% of earth’s interior!
P3) Lithosphere top,cool, rigid part of mantle + crust!
Lithosphere (cont.) cracked & broken into plates
P4) Asthenosphere lower, hotter, “plasticlike” part of mantle
plates of lithosphere “float” on the asthenosphere
P5) Core Two parts:liquid Outer Core (made of iron)solid Inner Core (made of iron and nickel)