Question

Thickness (km) Density (g/cm³) Bottom Types of Rock Found Top Upper mantle

If silicic rock is found in a core sample, what evidence does this provide about the rock's location?

a) Its location is likely underneath an ocean or a mountain.
b) Its location is likely denser than Earth's lithosphere.
c) Its location likely has a consistency that changes from solid to liquid.
d) Its location likely contributes to the creation of Earth's magnetic field.

Answer 1

Finding silicic rock in a core sample suggests that the location is likely underneath an ocean or a mountain.

Step-by-step explanation:

When silicic rock is found in a core sample, it provides evidence that the location is likely underneath an ocean or a mountain. Silicic rock, such as granite, is commonly found in continental crust and is less dense than oceanic crust. The density of silicic rock is around 2.7-2.8 g/cm³, which is lower than the density of the upper mantle, which ranges from about 3.5 to more than 5 g/cm³.