Mountain Ranges: Types of Folds in Fold Mountains

Vocabulary flashcards covering the types and features of folds in fold mountains from Chapter 3: Mountain Ranges (World of Change: Strand 1: The Physical Environment).

Compressional forces

Varying forces responsible for the formation of different types of folds in fold mountains.

Symmetrical fold

A fold formed under equal pressure, where the limbs are of equal length and angle.

Asymmetrical fold

A fold formed under unequal pressure, where one limb is steeper or longer.

Overfold

A fold in which one limb is pushed over the other, creating a tilted shape.

Recumbent fold

A fold pushed horizontally, resulting in limbs that are nearly parallel.

Anticline

An upward-arching fold in rock strata within fold mountains.

Syncline

A downward, trough-like fold in rock strata within fold mountains.

Axial plane

The surface or plane that divides the two limbs of a fold structure.

Types of folds in fold mountains

Geological structures formed by varying compressional forces, categorized into symmetrical fold, asymmetrical fold, overfold, and recumbent fold.