Across
- 3. dating, Used to arrange geological events, and the rocks they leave behind, in a sequence. The method of reading the order is called stratigraphy (layers of rock are called strata).
- 7. The act or result of decomposing; disintegration.
- 8. A remnant or trace of an organism of a past geologic age, such as a skeleton or leaf imprint, embedded and preserved in the earth's crust.
- 10. A type of rock formed under pressure and high temperatures.
- 11. In geology, formed by deposition of materials previously held in suspension by water.
- 12. The molten rock material under the earth's crust, from which igneous rock is formed by cooling.
- 13. The quantity of something per unit measure, especially per unit length, area, or volume in which the layers of the Earth are differentiated by.
- 14. The condition of being pressed.
- 17. Of or relating to igneous rock that is forced while molten into cracks or between other layers of rock and form larger crystals.
- 18. Relating to or being a commodity or resource, that is inexhaustible or replaceable by new growth.
- 19. Any of the chemical or mechanical processes by which objects exposed to the weather are worn or broken down.
Down
- 1. The waters of the earth's surface as distinguished from those of the lithosphere and the atmosphere.
- 2. Derived from magma poured out or ejected at the earth's surface. These rocks contain small crystal.
- 4. The outer part of the earth, consisting of the crust and upper mantle.
- 5. Formed by solidification from a molten state.
- 6. the outer most layer of the Earth.
- 9. An essential part of sedimentary rock or fossil formation/The process of compacting or the state of being compacted.
- 15. The group of natural processes, including weathering, dissolution, abrasion, corrosion, and transportation, by which material is worn away from the earth's surface.
- 16. The process or business of extracting ore or minerals from the ground.
- 20. renewable, A substance that is being used up more quickly than it can replace itself.