Lithologic, Paleogeographic, and Paleocurrent Maps of the World

What are Paleocurrents?

Why are they important?

Paleocurrents are vectors indicating the direction of flow of currents depositing sediments on the earth's (or mars etc.) surface, in the past.


Paleogeographic Maps of the World
Devonian Paleogeographic Map

This is a BIG jpg image (1600x1200)

These maps depict the distribution of lithologies, and the paleocurrents by geologic periods, and are based on nearly one million measurements worldwide. This information can be extremely helpful in attempting to reconstruct the past history of the earth.

"For effort expended, measurements of directional structures are probably more rewarding to the field geologist than anything else".
--Pettijohn et. al. 1972



Total, Lower, Upper


Total, all periods

Map legend

Lithologic index


Total, all periods


Total, all epochs

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