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Fudgin [204]
3 years ago
9

What have scientists used to build a chronology of earths past

Geography
1 answer:
eduard3 years ago
5 0
Hi,

Scientists have used rock samples to date the Earth's past. They also might use Steno's principles. 

Relative dating is the determination of the age of a rock or geological event by comparing with other rock/ geologic events. Absolute dating is a form of geologic dating that gives an actual date or age in history that the item was formed or died in years. 

Steno's principles are: 

Law of superposition - Bottom layer is the oldest, top layer of the youngest In undisturbed layers of sedimentary rock or magma.

Original horizontally - When sedimentary rock layers form, they are "created in a horizontal form.

The Principle of Lateral Continuity -<span> States that layers of sediment initially extend </span>laterally<span> in all directions.


Faith xoxo



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