1.Write short notes on the following. (a) Contact aureole (b) Granoblastic texture (c) Porphyroclastic texture
1.Write short notes on the following. (a) Contact aureole (b) Granoblastic texture (c) Porphyroclastic texture (d) Foliation (e) Grades of metamorphism 2. Distinguish between the following. (a) Slaty cleavage and gneissic textures (b) Porphyroblastic and crystalloblastic textures (c) Epizone and mesozone (d) Cataclastic and dynamic metamorphisms 3. Which of the following rock is metamorphozed to marble? (a) Granite (b) Limestone (c) Sandstone (d) Slate 4. Changes in the bulk composition of the parent rock occur primarily as a result of which of the following agent of metamorphism? (a) Pressure (b) Temperature (c) Hydrothermal fluids (d) Deformation 5. What type of metamorphism is caused by high temperature and high pressure imposed over a large volume of crust? (a) Burial (b) Contact (c) Regional (d) Cataclastic 6.Which mineral is responsible for the strong foliation in schist? (a) Mica (b) Calcite (c) Quartz (d) Chlorite
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