Across
- 4. Rock, types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface
- 7. solid mineral material forming part of the surface of the earth
- 11. igneous rock formed on earth's surface
- 13. from the transformation of existing rock to new types of rock
- 15. formed through the cooling and solidification of magma or lava
- 17. indicating that the rock contains substantial dark silicate materials
- 18. large crystals embedded in a matrix of smaller crystals
- 19. the action of depositing something
- 20. the exertion of force on something so that it becomes more dense
Down
- 1. molten or semi-molten natural material from which all igneous rocks are formed
- 2. igneous rock lying between felsic and mafic
- 3. igneous rock formed below earth's surface
- 5. describes transitions through geologic time among the three main rock types
- 6. a thing composed of various elements
- 8. igneous rock composed mainly of iron and magnesium
- 9. hot molten or semifluid rock erupted from a volcano
- 10. indicating that a rock is composed of light colored sulfates
- 12. broken down by processes of weathering and erosion
- 14. the process of eroding or being eroded by wind, water, or other natural agents
- 16. the process of wearing or being worn by long exposure to the atmosphere