Post Utme Unilorin 2023 Geography Question 36

Practice objective / multiple choice question 36 from the 2023 Post Utme Unilorin Geography examination.

Post Utme Unilorin 2023 Geography Objective / Multiple Choice
Question 36 POST_UTME_UNILORIN • 2023 • GEOGRAPHY • objective

A granitic intrusion is characterized by a large body of intrusive igneous rock that has a distinct contact zone with the surrounding rocks. What is the primary reason for the formation of this contact zone?

Answer Options

Correct Answer A. The intrusion of magma into the surrounding rocks causes thermal stress, resulting in the formation of fractures and a contact zone.
B. The surrounding rocks are subjected to hydrothermal alteration, leading to the formation of a contact zone.
C. The intrusion of magma into the surrounding rocks causes a change in the mineral composition, resulting in the formation of a contact zone.
D. The surrounding rocks are subjected to mechanical stress, resulting in the formation of a contact zone.
Correct Answer
A
Correct Option:
The intrusion of magma into the surrounding rocks causes thermal stress, resulting in the formation of fractures and a contact zone.

About This Question

This is Post Utme Unilorin 2023 Geography Question 36. It is one of the objective questions from the 2023 Post Utme Unilorin Geography examination.

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