Question

base your answers to the following questions on the cross section below and on your knowledge of earth science. the geologic cross section represents a portion of earths crust. layers a, b, c, and d identify rock units. two unconformities and a fault are labeled. line xy represents a third unconformity.
describe the rate of cooling of the magma that formed rock unit d.

Explanation:

Rock unit D is intrusive igneous rock. Intrusive igneous rocks form from magma that cools slowly beneath the Earth's surface. This slow cooling allows large mineral crystals to form.

Answer:

The magma that formed rock unit D cooled slowly.