2026 · Q68
Consider the following statements regarding metamorphic rocks :
- 1Ortho-metamorphic rocks are formed from igneous rocks.
- 2Intense heat of the intruding magmas results in metamorphism of the surrounding rocks, a process known as dynamic metamorphism.
Which of the statements given above is/are correct ?
General KnowledgeGeography
- A1 only
- B2 only
- CBoth 1 and 2
- DNeither 1 nor 2
Explanation
Ortho-metamorphic rocks are those formed by the metamorphism of igneous protoliths (statement 1 true). Intense heat from intruding magma produces contact (thermal) metamorphism; dynamic metamorphism is instead caused by directed pressure and shearing in fault zones (statement 2 false). Hence only statement 1 is correct.