The valleys formed by movements caused due to endogenetic forces come under the category of tectonics.
This type of valley is classified into two parts:
1. Synclinal Valley
2. Rift Valley.
1. Synclinal Valley: Curved folds occurred in rocks due to compression force of tectonic action, which causes anticline and syncline. Synclinal valley is formed in subsided part of the folding.
2. Rift Valley: Rift Valley is a steep – sided valley formed by the downward displacement of a block of the earth’s surface between two nearly parallel faults. Valley of Narmada River is an example of rift valley.
