Fossils

Biostratigraphy

Paleoenvironment

- marine vs nonmarine

Paleogeography

- land bridges

Evolution Theory

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Geometry

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Blanket

Shoestring

Lens

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Sandstone Lens
Jurassic Morrison Formation, Dinasour National Monument

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Facies

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Biofacies

Lithofacies

- lagoon - quiet water, bioturbated shales
- beach - high energy, cross-bedded sandstone

Walther's Law

Facies that are adjacent laterally will be superimposed vertically

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last updated 2-23-01

All original material copyright (c) 1998 by Annabelle Foos. All rights reserved.