Question: What are the three laws of relative dating?

What are the laws of relative rock dating?

Relative age means age in comparison with other rocks, either younger or older. New rock layers are always deposited on top of existing rock layers. Therefore, deeper layers must be older than layers closer to the surface. This is the law of superposition.

What are the three laws of rocks?

Stenos laws of stratigraphy describe the patterns in which rock layers are deposited. The four laws are the law of superposition, law of original horizontality, law of cross-cutting relationships, and law of lateral continuity.

What is the oldest rock unit?

The oldest geologic units in the study area are the Precambrian crystalline (metamorphic and igneous) rocks (fig. 2), which form a basement under the Paleo- zoic, Mesozoic, and Cenozoic rocks and sediments.

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