GENERAL GEOLOGY

Detailed explanation-1: -Sedimentary rock can change into metamorphic rock or into igneous rock. Metamorphic rock can change into igneous or sedimentary rock. Igneous rock forms when magma cools and makes crystals.

Detailed explanation-2: -The igneous rock layer is younger than the sedimentary layers under it and older than the sedimentary layers that form on top of it. Why is igneous rock always younger than any rock it cuts through? Fossils contained within sedimentary rock can offer clues about the age of the rock.

Detailed explanation-3: -Igneous rocks are formed from melted rock deep inside the Earth. Sedimentary rocks are formed from layers of sand, silt, dead plants, and animal skeletons. Metamorphic rocks formed from other rocks that are changed by heat and pressure underground.

Detailed explanation-4: -processes that explain the relationship between the three rock types: igneous, sedimentary, and metamorphic. Any rock type can become any other.

Detailed explanation-5: -Igneous rocks (from the Latin word for fire) form when hot, molten rock crystallizes and solidifies. The melt originates deep within the Earth near active plate boundaries or hot spots, then rises toward the surface.