Layers of rock reveal a past

geology-2425809_640

Stratigraphy is a branch of geology concerned with the study of rock layers (strata) and layering (stratification).

A stratigrapher would examine different layers of the earth, up from the mantle and down to the core.

This helps uncover the history of our planet – what had happened at the place the rock is found and how the land was used by various civilizations.

Red rocks or layers of salt inside the rocks signify hot desert like conditions in the past.

Although this is what stratigraphers are documented to primarily do, they also study seismic activity and predict earthquakes.

They are of great importance to the oil and gas extraction industry, as oil and gas almost always occur in stratified sedimentary rocks.

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