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GEOL 102 Historical Geology

Spring Semester 2018
Fluvial & Deltaic Environments; Walther's Law




Cross-bedded channel sandstone in the Cretaceous Hell Creek Formation near Ekalaka, Montana

Fluvial - Rivers

In the above, each particular subenvironment produces rocks of a particular facies (particular combination of sedimentological, structural, and biological features).

Walther's Law: As depositional environments migrate laterally, the sediments of one environment come to lie on top of sediments of the adjacent environment.

Deltaic - deltas

To Lecture Notes.

Last modified: 21 January 2018

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Crossbedded channel sandstone and conglomerate in the Jurassic Morrison Formation near Hanksville, Utah