Igneous rocks
How do igneous rocks form?
They form when molten rock (magma under the surface, lava on the surface) cools and crystallizes.
What rock does limestone become when metamorphosed?
Limestone metamorphoses into marble.
How do sedimentary rocks form?
Sediments are broken down by weathering, transported by wind or water, deposited in layers, and hardened through lithification.
What are the three main rock types?
Igneous, Metamorphic, Sedimentary
What is the difference between magma and lava?
Magma is molten rock below the surface, while lava is molten rock that has reached the surface.
What rock does sandstone become when metamorphosed?
Sandstone metamorphoses into quartzite.
Where do igneous rocks form?
They form at tectonic plate boundaries (divergent and convergent) and hot spots.
What is the correct order of increasing metamorphic grade for shale?
Shale-->Slate-->Phyllite-->Schist-->Gnesis
What is the difference between intrusive and extrusive rocks?
what is Intrusive rocks (e.g., granite) cool slowly deep underground, resulting in large crystals
What are the main types of igneous rock textures?
Phaneritic, Aphanitic, Glassy, Vesicular