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Rock and Minerals

How Was the Grand Canyon Formed?
Geology | Rock and Minerals

How Was the Grand Canyon Formed?

Like a stack of pancakes, younger rock layers pile on top of older layers. We use the law of superposition to reveal Earth’s age and Grand Canyon geology.

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Metamorphic Rocks: Heat, Pressure and Metamorphism
Geology | Rock and Minerals

Metamorphic Rocks: Heat, Pressure and Metamorphism

If you take an existing rock and add immense heat or pressure to it, the rock becomes soft and pliable like cookie dough transforming into metamorphic rocks.

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How Do Sedimentary Rocks Form?
Geology | Rock and Minerals

How Do Sedimentary Rocks Form?

Sedimentary rocks form from two key processes. First, compaction squeezes material together. Second, cementing glues the squeezed material together.

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How the Rock Cycle Recycles Earth’s Crust
Geology | Rock and Minerals

How the Rock Cycle Recycles Earth’s Crust

If you could speed up time, you would see rocks cycling from within the planet. Like a well-oiled machine, rocks are igneous, sedimentary and metamorphic.

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What Are the 3 Types of Rocks?
Geology | Rock and Minerals

What Are the 3 Types of Rocks?

Earth is covered with these 3 types of rocks are: (1) sedimentary rocks (2) metamorphic rocks and (3) igneous rocks. How they are different from each other?

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