Continental crust

Discovery Science: Earth – Water – Oceanic Crust

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Earth Science: Earth – Water – Oceanic Crust Oceanic crust covers two-thirds of the Earth’s surface. Crustal rocks are relatively recent, with none older than 200 million years, and they are constantly in motion. This movement expands the oceans and shifts entire continents. The oceanic crust begins beyond the flooded part of the continental shelf. … Read more

Discovery Science: Structure Of The Earth’s Crust

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Earth Science: Structure Of The Earth’s Crust The Earth’s crust is the thin and rigid outer shell of the Earth. The Earth has a continental and an oceanic crust, differing in thickness, density, and type of rock content, as well as the age and origin of the rock material. The thin outer shell of the … Read more