Home » UPSC NDA-2 » An up fold in rock is:

An up fold in rock is:

June 1, 2025 by rawan239

An up fold in rock is:

graben

horse

anticline

syncline

This question was previously asked in

UPSC NDA-2 – 2015

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The correct option is C, anticline.

In structural geology, an up fold in rock layers, where the limbs dip away from the hinge and the oldest strata are typically in the core, is called an anticline. Conversely, a down fold, where the limbs dip towards the hinge and the youngest strata are in the core, is called a syncline. Graben and horst are fault-related structures; a graben is a down-dropped block bounded by normal faults, and a horst is an uplifted block bounded by normal faults.

Folds in rock strata result from compressional forces acting on the Earth’s crust. Anticlines and synclines often occur together in fold belts. The shape of the fold can vary from gentle waves to tight, overturned folds.

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