Question

a geologist is studying a massive rock outcrop. the texture of the rock is coarse - grained with large round grains. the geologist determines that the rock probably formed when lava cooled on earths surface. what type of rock has the geologist identified? igneous metamorphic sedimentary

Explanation:

Igneous rocks form from the cooling and solidification of magma or lava. Magma cools slowly beneath the Earth's surface to form intrusive igneous rocks (coarse - grained texture). Lava cools quickly on the Earth's surface to form extrusive igneous rocks (fine - grained texture). However, the key here is the formation from lava (a product of magma that reaches the surface). Metamorphic rocks form from pre - existing rocks under heat and pressure. Sedimentary rocks form from the accumulation and lithification of sediments.

Answer:

igneous