Metamorphic rocks indicate that an even older parent rock once existed in that place. Indicate whether the statement is true or false.
Q. 2 -
Metamorphic rocks are very common in the crystalline basement rocks of the oldest parts of
continents. Indicate whether the statement is true or false.
Q. 3 - Metamorphic rocks are the oldest known rocks. Indicate whether the statement is true or false.
Q. 4 -
Divergent plate boundaries are characterized by:
a. hydrothermal alteration and contact metamorphism.
b. regional and contact metamorphism.
c. regional and dynamic metamorphism.
d. dynamic and contact metamorphism.
e. hydrothermal alteration and dynamic metamorphism.
Q. 5 -
In adjacent rocks that show a gradual increase in metamorphic intensity, the first appearance of a
particular index mineral indicates
a. the location of the minimum pressure and temperature conditions needed for the formation
of that mineral.
b. the location of the maximum pressure and temperature conditions needed for the
formation of that mineral.
c. the rocks formed under the same broad conditions of temperature and pressure.
d. the location on Bowens reaction series where that mineral is in equilibrium.
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