Question

In which class of folds, the Isogans converge inwards?

(a) Class 1

(b) Class 2

(c) Class 3

(d) Class 4

This question was posed to me in class test.

I need to ask this question from Classification of Folds in portion Folds and Folding of Engineering Geology

Answer 1

The correct choice is (a) Class 1

Explanation: Determination of dips may be made and then lines of equal dips are drawn. These are called Isogans. In Class 1 folds, the Isogans converge inwards.