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The law of superposition states that the oldest strata in an undisturbed formation of rock are the oldest.
The oldest rocks in North America are found in Minnesota. The oldest of these rocks age to 3.6 billion years old.
The basement is a term sometimes used, and Cratonis another used in a continental context.The Principle of Superposition has it that in a given formation, the top layers are the youngest, and the deeper layers the oldest.
minnesota In Canada is a Schist formation, Date is 3.8 Billion Bp.
Nothing. It all has to do with plate tectonics.They push up rock from the crust causing earthquakes. There are plates in places like California, which is why earthquakes are common.
mountain building
Cementing is not a process involved in the formation of sedimentary rock.
sedimentary rock formation
Igneous Rock
A rock is just a piece of a larger formation of rock; the formation exhibits characteristics of origin or composition that set it apart from other formations. A rock is the product of the rock formation process, just as a cake is the result of the process of cake making (combining ingredients, mixing and baking the cake).
Big Bang, formation of galaxies, formation of sun, formation of earth.
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