Geology
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. […]
Rock and Minerals
Geology
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. […]
Geology
How Do Sedimentary Rocks Form?
Sedimentary rocks form from two key processes. First, compaction squeezes material together. Second, cementing glues the squeezed material together. […]
Geology
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. […]
Geology
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? […]
