A Geologic Odyssey: Definitions

A nodule is a small (in this case, fist-sized or smaller) more or less rounded body harder than the surrounding sediment or rock matrix

Calcium-carbonate cement is a natural glue that holds rock fragments together and consists of chemically precipitated limestone in pores between fragments

A fault scarp is a topographically expressed bench resulting from the movement of the land surface upward on one side of a fault and downward on the other side of the fault

Krenegenic, of or generated by spring processes (krene', gr. spring; genic, gr. generated by; similar to biogenic, pedogenic); includes spring mounds, other spring orifices, cienegas, pits, pots, necks, sapping features, hydromorphic concentrations, and cements