big questions how do geologists learn about earths interior?? what are the features of earths crust,...
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BIG QUESTIONS
How do Geologists Learn about Earth’s interior??
What are the features of Earth’s Crust, Mantle, and Core??
Direct: from Rock Samples
Drills- 12.3 km
Volcanoes- 100 km
Labs- recreated layers and force
Indirect: from Seismic Waves
Produced by earthquakes
Study how they travel through Earth’s interior
Earth
Core Mantle Crust
Earth's Layers3 main ayers
Solid Rock that includes both dry land and the ocean floor
Ocean Crust: Basalt
Continental Crust: Granite
Lithosphere
Uppermost part of Mantle
Similar to crust in composition and texture
Asthenosphere
Below lithosphere
Higher pressure
Bends but doesn’t break
Inner Core Dense ball of solid
metal Extreme temp. and
pressure
Outer Core Molten metal
surrounding inner core
BIG QUESTIONSTry Them Now!
How do Geologists Learn about Earth’s interior??
What are the features of Earth’s Crust, Mantle, and Core??