Notes
The composition and structure of Earth
Content of the notes (10)
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Lithosphere: The rocky outer part of the Earth.
Asthenosphere: The highly viscous, mechanically weak, and ductile region of the upper mantle of Earth.
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To the Mayans, the world was flat, and at it corners, four jaguars (known as bacabs) held up the sky.
The ancient Persians speculated that the Earth was a seven-layered ziggurat (or cosmic mountain), while the Chinese viewed it as a four-side cube.
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The ocean crust is less dense than the continental crust. when they collide the less dense one will come down and the heavier one will move up.
The core is mostly iron metal
The litosphere is composed of the crust and the portion of the upper mantle.
The asthenosphere is partially olten upper mantle material that behaves plastically and can flow. it's where convection currents occur. which move the pates on the lithosphere.
outer core is liquid and inner core is solid. continental crust is granidic and the oceanic crust is basaltic.
the rigid upper mantle is called the lithosphere.
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North American plate, caribeean plate and south american plate affect us
cocos plate pacific ocean
the land od guatemala is divided by the caribeean and north american
between the North american plate and caribeean plate are the motagua fault and polochic plate.
magma is liquified rock
divergent plate boundary: two plates move apart.
oceanic convergence
tranform boundaries they are moving in different directions
most h¿join two frangments of the oceanic ridge
pangea breakup
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Crust
Earth's outer rocky skin
Continental Crust
It's less dense and has many rock types
Oceancic Crust
It's dense and has basaltic rock
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Mantle
solid, rocky shell
more than 82% of Earth's volume
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- Note on The composition and structure of Earth, created by Ana García on 03/03/2021.
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- Ana García · Mar 2021
- Updated
- Mar 26, 2021
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